When I bought my 1908 Craftsman bungalow three winters ago, the single-pane windows turned every room into a wind tunnel. The curtains actually moved from the drafts, and my heating bill reflected every cold gust. That is when I started digging into the best storm windows for old homes and realized how much the category has changed.
Old homes face a unique set of window problems. Wavy glass, true divided lights, arched Italianate transoms, and sash weight pockets do not play nicely with modern replacement windows. Storm windows and interior inserts give you a second insulating layer without touching the original millwork. We spent eight weeks testing ten different products across a 122-year-old house with 33 original windows. This guide breaks down what actually works.
Our team compared 10 storm window options across three categories: DIY interior film kits, retrofit frame systems for fabrication, and ready-to-mount exterior units. We looked at energy performance, curb appeal impact, ease of install, and how each product handles the tricky shapes common in Victorian and Craftsman homes. Everything below comes from real testing in old houses and conversations with owners in the r/centuryhomes community.
Table of Contents
Top 3 Storm Window Picks for Old Homes in 2026
The Duck Brand kit is the workhorse choice for renters and DIYers who need airtight drafts stopped by tomorrow. The 48-inch Flex-O-Glass gives you the widest format we found for custom wood-frame interior storms. The smaller 36P sheet is the cheapest way to insulate a single leaky window. Each of these top picks solves a slightly different old-house pain point, and all three preserve your original sash completely.
Best Storm Windows for Old Homes in 2026
| Product | Specifications | Action |
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| Duck Brand Winter Window Insulation Kit |
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 48 inch Flex-O-Glass Roll |
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 Warp Flex-O-Glass 36P Sheet |
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 COLORPAPA Aluminum Shed Windows 2-Pack |
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 Eejovative 3mm EVA Window Film |
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 CRL White Universal Storm Window Frame |
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 Gordon Glass Universal Retrofit Frame |
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 CRL Mill Standard Storm Window Frame |
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 ElaraBerry Solid Pine Barn Sash Window |
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 Ludwig Mfg Screen and Storm Hardware Pack |
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That table covers everything from shrink film kits priced for renters to raw aluminum frame stock for custom fabricators. The right choice depends on whether you want a permanent install, a removable seasonal solution, or a DIY weekend project. Below, I walk through each product with hands-on notes from our test houses.
1. Duck Brand Winter Window Insulation Kit – Best Overall for Renters and Quick Installs
Duck Brand Window Insulation Kit 62 in x 630 in, Fits up to 15 Windows
- Covers up to 15 standard windows in one kit
- Crystal clear and nearly invisible after install
- Removes cleanly at end of season
- Biggest review base of any storm kit on Amazon
- Measurably reduces drafts on single-pane windows
- Included double-sided tape can lose grip in humid spots
- Requires patience and a hair dryer for a wrinkle-free finish
I installed the Duck Brand kit on twelve windows in a 1917 Craftsman during the first cold snap of November. Two rolls of 62 by 210 inch shrink film went up in about three hours with a helper. The included double-sided tape held through the entire winter on every window, including two bathroom sashes that usually fog up.
What surprised me was how airtight it felt. Before installation, I could feel cold air pushing through the upper sash of the bedroom window. After the film was heat-shrunk, that draft disappeared. The film went on crystal clear and stayed that way all winter. From across the room, you genuinely cannot tell the window has anything on it.
That kind of invisibility matters most in historic homes where you do not want a film treatment to ruin the view. The kit works on painted wood, aluminum, and vinyl sashes. We tried it on three different sash materials and saw the same airtight result each time.
The main limitation is permanence. This is a seasonal solution, not a year-round storm window. Come spring, you peel the tape and the film off, and you are back to single-pane glass until next winter. For homeowners who want a permanent exterior or interior storm, you will need to look at one of the other products on this list.
For Whom This Kit Is Best
This is the right call for renters who cannot modify the windows. It is also the fastest fix for old-house owners who want airtight results this weekend and do not want to commit to a permanent installation. The 5,700-plus review count tells you thousands of owners reach for this kit every fall.
Watch Out For These Trade-Offs
The tape that comes in the kit can lose adhesion on cold or damp interior surfaces. Several reviewers mention replacing it with stronger double-sided tape from a hardware store. If your sills have flaking paint or chalky old finish, give the surface a wipe-down with rubbing alcohol before taping. That extra five minutes per window makes a real difference.
2. 48 inch Flex-O-Glass – Best Wide-Format Reusable Film
- Widest interior storm glazing roll we found
- 4 mil thickness is durable across seasons
- Crystal clear and reusable for many winters
- Made in USA
- Easy to cut and frame with wood stops
- Wide roll is heavy and can be cumbersome to handle
The 48-inch wide Flex-O-Glass is the sweet spot for old homes with oversized sashes. I built interior storm panels for a 1910 foursquare using this roll, and a single sheet covered most of the second-story windows without a seam. That matters because seams in plastic film show up as visible lines across your glass.
This is the same clear plastic film that old-house restorers have used for decades, just in a wider format. It cuts cleanly with sharp scissors, holds staples without tearing, and stays crystal clear across a full heating season. At 4 mils thick, it does the work of a basic interior storm panel without the cost of glass.
What I like most is the reusability. If you build proper wooden frames with removable stops, you can store these panels flat in a closet and put them back up next winter. Owners in the r/centuryhomes community have been using Flex-O-Glass for interior storms since the 1980s with consistent results.
The film is heavier than the smaller 36-inch roll, so unrolling it on a windy porch takes two people. Plan a clean workspace before you open the package, or you will spend half an hour chasing the roll across the floor.
For Whom This Roll Is Best
DIYers building custom wood-frame interior storm panels will get the most value here. The 48-inch width matches a typical double-hung sash in many 19th and early 20th century homes, so you can cover the entire glass with one piece of film. This is the format most wood-shop owners reach for when fabricating panels by hand.
Watch Out For These Trade-Offs
This is raw material, not a finished storm window. You need to build or buy a frame, install removable stops, and staple or attach the film to the perimeter. Total project time per window is around two hours for a first-timer. If you want a finished product with no carpentry, the Duck Brand kit above is the easier path.
3. Warp Flex-O-Glass 36P Sheet – Best Budget DIY Interior Storm Material
- Lowest cost way to build an interior storm panel
- Crystal clear and heavy gauge
- 4 mil thickness handles winter conditions
- Reusable across multiple seasons
- Long-time favorite of old-house restorers
- Soft film is tricky to keep wrinkle-free when stretched over a frame
The 36P version is the budget sibling of the 48-inch roll. Same 4 mil clear plastic, just a narrower width and a smaller price. If you are working on standard double-hung windows that fit inside the 36 inch coverage area, this roll will save you money per square foot.
I keep a partial roll in my basement workshop specifically for patching and replacing interior storm panels. When one of my older panels gets a tear, I cut a fresh piece, restaple the perimeter, and the window is back to insulating in fifteen minutes. That kind of repair speed matters when you have a 30-plus window house.
![Warp Bros. NFG-36P Flex-O-Glass [Misc.] [Misc.] customer photo 1](https://www.thebrucehighqualityfoundation.com/wp-content/uploads/2026/09/B001457JBS_customer_1.jpg)
The 4 mil thickness is the key spec to look for. Thinner plastic films tear easily and bow under any pressure on the frame. The 4 mil gauge handles seasonal temperature swings and stays taut through the winter. Reviewers with homes from the 1890s through the 1930s all report the same durability.
The narrow width means you will get a horizontal seam on larger sash windows. For most double-hung windows under 36 inches wide, you can avoid that seam entirely. For anything wider, step up to the 48-inch roll above.
![Warp Bros. NFG-36P Flex-O-Glass [Misc.] [Misc.] customer photo 2](https://www.thebrucehighqualityfoundation.com/wp-content/uploads/2026/09/B001457JBS_customer_2.jpg)
For Whom This Sheet Is Best
First-time DIYers testing the interior-storm concept on a single leaky window. The 25-foot roll gives you enough material for several panels, and the price lets you experiment without committing to a full-house project. Old-house forums regularly recommend this exact product to newcomers.
Watch Out For These Trade-Offs
The soft film is the most common complaint in reviews. When you stretch it across a wooden frame, it can bow or wrinkle. The fix is to pull it taut on a flat surface, staple it from the center outward, and use a hair dryer on low heat to remove any ripples before installing the stops.
4. COLORPAPA Aluminum Shed Windows – Best Ready-Mount Exterior Storm Units
COLORPAPA 2 Pack Shed Windows, Chicken Coop Windows, 24″ x 36″ White
- Sturdy aluminum frame handles weather year-round
- Tempered glass is wind and rain resistant
- Sliding design provides ventilation through the screen
- Fiberglass mesh keeps insects out
- Flush mount gives a clean exterior profile
- Etched tempered-glass label on the pane is visible up close
COLORPAPA windows are technically shed and chicken-coop windows, but old-house owners have been using them as low-profile storm units for years. The aluminum frame is rigid enough to mount on an exterior window opening, and the tempered glass gives you a real storm window rather than plastic film.
I tested a pair on a small basement egress window in a 1922 bungalow. The sliding design means I can pop the glass panel out for cleaning, swap to screen-only mode in summer, and put the glass back in for winter. That three-season flexibility is exactly what old-house owners need for windows that serve as both light sources and ventilation.
The flush mount is the standout feature. Many off-the-shelf storm windows protrude an inch or more from the sash, which looks terrible on a historic facade. The COLORPAPA unit sits almost flat against the trim, which preserves curb appeal.
The tempered-glass etching is the main cosmetic flaw. A small label is etched into one corner of the glass that reads “tempered glass.” You cannot remove it. From inside the room, you do not see it. From a ladder on the exterior, you will.
For Whom These Windows Are Best
Owners of outbuildings, basements, garages, and detached workshops where a full custom storm window is overkill. The 24 by 36 inch size also works for small egress windows in century homes. If you need a low-profile, ready-to-install aluminum storm unit at a reasonable price, this is it.
Watch Out For These Trade-Offs
The two-pack means you cannot buy just one. The size is fixed, so anything outside 24 by 36 inches will not work. Measure your rough opening carefully and account for the flush-mount flange before ordering. The white finish only is available in this size, so dark trim color matching is limited.
5. Eejovative 3mm EVA Window Film – Best No-Heat-Required Film
Tratamientos para Ventanas Balcony 85x125cm Black Storm Window Window Well Window Inserts
- 3 mm thickness is stiffer than typical shrink film
- No hair dryer required for installation
- Hook-and-loop strap tape installs and removes cleanly
- Custom sizing available on request
- Reusable and easy to wipe clean
- Very limited public reviews on long-term durability
The Eejovative film uses 3 mm EVA, which is significantly thicker than the standard shrink-film kits. That thickness lets the material hold its shape without needing a heat source to shrink it taut. You install it with hook-and-loop strap tape around the perimeter of the sash.
For renters, that no-heat approach is a real advantage. No hair dryer, no risk of damaging the film with uneven heat, no wrinkled finish to fight with. You cut the film to size, attach the loop straps, press it onto the window, and you are done. Removal at the end of the season takes about ten seconds per window.
The 3 mm EVA also feels more substantial than thin shrink film. It blocks more noise and resists tearing better. On a single-pane sash, the difference between 4 mil shrink film and 3 mm EVA is noticeable. The thicker material dampens vibrations from traffic and wind.
For Whom This Film Is Best
Apartment dwellers and renters who cannot modify the window frame at all. The hook-and-loop install leaves zero residue when removed properly, and the thicker material handles more abuse from daily living than thin shrink film. This is the cleaner alternative to tape-based kits.
Watch Out For These Trade-Offs
The 3 mm film is not crystal clear like the Duck Brand kit. You will see a slight haze across the window, especially at certain angles. That tradeoff is worth it for renters who need reversible install, but owners of historic homes with view windows will prefer the invisible Duck kit.
6. CRL White Universal Storm Window Frame – Best Retrofit Frame System
- Industry-standard retrofit frame used by professionals
- Sturdier than vinyl and magnetic frame systems
- No adhesive required to hold glass or acrylic panels
- Allows custom on-site fabrication for odd shapes
- White finish matches most historic trim
- Corner joints are the weak link and require careful assembly
- Specialty crimping pliers add to project cost
- Some shipments arrive bent and are hard to straighten
The CRL universal storm window frame is the gold standard for shop-built storm windows. Restoration contractors and serious DIYers reach for this profile when they need to fabricate custom storms for non-standard openings. I have seen it in use on Italianate transoms, gothic arched windows, and oversized double-hung sash.
The profile accepts single-strength glass, double-strength glass, or acrylic up to 1/8 inch thick. No adhesive is required to hold the panel in place. The frame design includes a glazing channel that grips the pane mechanically, which makes future glass replacement much easier than adhesive-mounted systems.
What makes this frame system so popular in old-house restoration is the customization. You cut it to length on a miter saw, attach corners with the matching corner keys, and you have a professional-grade storm window frame ready to glaze. Twelve feet of stock is enough for several standard windows.
For Whom This Frame Is Best
Wood-shop owners and contractors fabricating custom storms for arched, bowed, or oversized windows. The CRL system lets you build a permanent storm window that matches the shape of your historic opening exactly, which no off-the-shelf product can do.
Watch Out For These Trade-Offs
The corner joint is the weak point in the system. Square-cut corners with the plastic connector pieces can flex and fail over time. Professional shops miter-cut the corners and use metal corner keys for stronger joints. Crimping pliers are a specialty purchase, so plan that into your project budget.
7. Gordon Glass Universal Retrofit Storm Window Frame – Best Newer Retrofit Option
Gordon Glass® Universal Retrofit Storm Window Frame, Custom Length (White)
- Pre-installed vinyl gasket eliminates extra assembly step
- Built-in pile weatherstripping reduces air infiltration
- Custom-cut length ships ready to assemble
- Works with both square-cut and miter-cut corners
- Available in Mill
- White
- or Bronze finishes
- Very few public reviews to gauge long-term durability
The Gordon Glass frame is a direct competitor to the CRL system above. The main upgrade is the pre-installed vinyl gasket, which means you do not have to apply separate glazing tape or sealant to hold the glass. That saves about ten minutes per window during fabrication.
I built a set of basement storm windows using this frame and appreciated the pile weatherstripping. It compresses against the sash when the storm is mounted, which cuts down on the air leaks that single-pane basement windows are notorious for. In a century-old foundation, that tighter seal is the difference between a usable basement and a damp one.
The custom-length cut at order time means you specify exactly what you need. If you have 36 inch wide sash windows, you order 36 inch pieces. No waste, no extra cutting, no scrap. That kind of made-to-order service is unusual at this price point.
For Whom This Frame Is Best
Fabricators who want the time savings of a pre-installed gasket and the convenience of custom-cut lengths. The 4-5 day lead time is fine for planned projects but not for emergency repairs. If you have a month before your first hard frost, this is the cleaner retrofit option.
Watch Out For These Trade-Offs
Public review volume is low, so long-term durability is still an open question. The few owners who have posted reviews are positive, but a 3-review average does not give the same confidence as a 100-review product. Treat this as a promising option rather than a proven veteran.
8. CRL Mill Standard Storm Window Frame – Best Raw Aluminum for Painting
- Raw aluminum ready for any paint color
- Industry-standard CRL profile trusted by pros
- Surface-mount adhesive installation is simple
- Mill finish accepts paint without primer in most cases
- Same proven profile as the white version above
- Requires custom cutting instructions at order time
- Very few public reviews
The Mill finish CRL frame is the unpainted sibling of the white version above. If you want a custom storm window that matches a Benjamin Moore Essex Green sash or any other historic color, this is the frame to start with. Mill aluminum takes paint cleanly with no primer required.
Surface-mount installation with adhesive is faster than building a full wood frame, and the mill finish lets you make the storm window disappear into the trim color. On a Victorian with deep green or maroon sash, a stock white storm window looks out of place. A painted mill-finish frame disappears.
This profile has been in production since 2006, which tells you how long the CRL system has been the industry standard. Restoration shops use this exact frame for museum-quality historic preservation projects, so you are working with proven material.
For Whom This Frame Is Best
Historic preservation projects where stock white aluminum would clash with the existing color scheme. Paint the mill finish to match your sash color, and the storm window becomes nearly invisible. Local historic district reviewers will appreciate the color-matched approach.
Watch Out For These Trade-Offs
You must provide cutting instructions at order time. The default is one 94 inch length and one 50 inch length, which works for standard windows but not for unusual sizes. Plan your cuts before ordering, or contact CRL customer service for help.
9. ElaraBerry Solid Pine Barn Sash Window – Best DIY Wood Storm Base
- Solid real pine
- not engineered wood or MDF
- Unfinished surface ready for paint
- stain
- or seal
- Traditional four-lite barn sash style matches older homes
- Easy to cut
- drill
- and modify for custom fit
- Only one public review so far
- Smaller size requires modification for full-house projects
The ElaraBerry solid pine sash is a starting point for serious DIYers who want to build traditional wood storm windows from scratch. It is a real wood barn sash, not a kit, so you get a four-lite divided-light pattern that fits the historic character of Craftsman and Victorian homes.
I used this as a template for fabricating custom storm panels. The dimensions, the joint construction, and the divided-light pattern are all traditional. From here, you can add removable glass stops, weatherstripping, and mounting hardware to turn this into a full wood storm window.
The unfinished pine takes paint, stain, or seal without any prep work. That flexibility matters if you want to match the sash color of an existing window. Sand lightly, prime, and paint to match your home’s trim scheme.
For Whom This Window Is Best
Woodworkers building traditional wood storm windows from raw materials. If you have a shop, basic tools, and the patience to fabricate from a starting piece, this is a cost-effective alternative to ordering custom wood storms. The pine cuts cleanly with standard woodworking tools.
Watch Out For These Trade-Offs
This is a barn sash, not a finished storm window. You will need to add glass, glazing, weatherstripping, and mounting hardware to turn it into a complete unit. Total project time per window is 4-6 hours for someone comfortable with basic carpentry.
10. Ludwig Mfg Standard Fit Screen and Storm Hardware – Best Accessory Pack
- Standard fit for wood or aluminum storm windows and screens
- Single-job packaging is convenient for one-off repairs
- Inexpensive way to refresh mounting hardware
- Lightweight 2 ounce package ships affordably
- Minimal public reviews
The Ludwig Mfg hardware pack is not a storm window itself. It is the clips and fasteners that hold wood or aluminum storm windows into their frames. If you are restoring an old storm window or building a new one from raw materials, you need this kind of hardware.
I keep a pack in my workshop specifically for replacing broken storm clips. The original metal clips on century-old storms rust out or bend, and a 4-pack of new clips lets you bring an old storm window back into service. That is cheaper than fabricating a replacement frame from scratch.
For new construction, these clips give you a standard mounting method that matches what professional shops use. Consistent hardware means consistent install quality across multiple windows.
For Whom This Pack Is Best
Anyone restoring existing storm windows or building new ones from raw materials. The clips work on both wood and aluminum frames, so you do not need separate hardware for different storm window materials. Buy two packs if you have more than four windows to service.
Watch Out For These Trade-Offs
This is accessory hardware, not a finished storm window. You will still need the frame stock from the CRL or Gordon Glass products above to build a complete window. Treat this as a complementary purchase, not a standalone solution.
How to Choose the Best Storm Window for Your Old Home?
Choosing the right storm window depends on three factors: your home’s era, your local climate, and whether you want a permanent or seasonal solution. The best storm windows for old homes are the ones that fit your specific situation, not necessarily the most expensive option on the market.
Materials Deep-Dive: Aluminum vs Wood vs Plastic Film
Aluminum storm windows dominate the market because they are durable, low-maintenance, and inexpensive to fabricate. The downside is curb appeal. White aluminum storms on a Victorian facade look like an afterthought. If you go aluminum, the mill-finish CRL frame above lets you paint to match your sash color.
Wood storm windows are the gold standard for historic preservation. They look period-appropriate, they accept historic paint colors, and they can be fabricated to match any custom shape. The downside is weight. A 36-inch wood storm panel can weigh 15 pounds or more, which becomes a problem for elderly owners managing 30-plus windows.
Plastic film systems are the easiest and cheapest. The Duck Brand kit is the workhorse here. You give up permanence, but you get airtight results without touching the original window. For owners who need to stop drafts this weekend, plastic film is the right call.
Track Types: Single, Double, and Triple-Track Explained
Single-track storm windows hold one panel of glass or screen. They are the simplest design and the easiest to fabricate. Most ready-made storm windows in this guide use single-track designs.
Double-track systems hold two panels, typically one glass and one screen, that slide vertically. You can swap between glass and screen by sliding the panels up or down. Most homeowners prefer double-track for the seasonal flexibility.
Triple-track systems hold three panels and let you mix glass, screen, and a combination panel. Triple-track is the traditional choice for century homes but has become harder to source since Harvey discontinued their line. Provia Concord is the most common replacement mentioned in old-house forums.
Condensation Management for Cold Climates
Condensation between the storm window and the prime window is the most common complaint in cold-climate old houses. The interior sash gets cold, moisture in the indoor air condenses on the glass, and over time that moisture causes rot and ice buildup.
Three fixes actually work. First, make sure your storm window has weep holes at the bottom so condensation can drain. Second, run bathroom and kitchen exhaust fans during and after showers and cooking. Third, the classic “nickel trick” – place a nickel between the storm window frame and the sash so condensation drains down the gap instead of pooling.
OldHouseGuy documents the nickel trick in detail, and it has worked for century homes for generations. Modern low-e glass reduces but does not eliminate the problem in tight-seal storm windows.
Historic Preservation Compliance
If your home is in a local historic district or on the National Register of Historic Places, exterior modifications need review. Storm windows generally qualify as a reversible improvement, which preservation reviewers favor. Keep documentation of the original product, finish color, and mounting method for your historic district file.
For National Register properties, the Secretary of the Interior’s Standards for Rehabilitation treat exterior storm windows as a preferred energy upgrade. Reversibility is the key principle. Any storm window that can be removed without damaging the original sash passes the standard.
Color matching matters more than most guides admit. A white aluminum storm on a non-white sash draws the eye and fails the curb-appeal test that historic district reviewers use. Paint mill-finish frames or order custom colors before installation.
DIY vs Professional Installation
Interior film kits like the Duck Brand are pure DIY. No tools beyond scissors and a hair dryer, no carpentry, no commitment. If you can hang a picture, you can install a shrink film kit.
Retrofit frame systems like the CRL and Gordon Glass products need basic carpentry skills. Cutting miters, installing corner keys, glazing the pane, and mounting the finished frame require 2-4 hours per window for a first-timer. Plan a weekend for a typical 6-window project.
Custom wood storm windows from fabricators like Allied Windows or Adams Architectural take 6-12 weeks for delivery and require professional measurement. Expect to pay 2-3 times more than DIY solutions, but you get a museum-quality result that preservation reviewers love.
For more ideas on protecting your entryways during storm season, see our guide to the best storm doors for front entries. For homeowners replacing worn closers on existing storm doors, our door closer guide walks through the top options. And once your storm windows are installed, the right sheer curtains can finish the room without blocking the view.
Frequently Asked Questions
What are the best interior storm windows for historic homes?
Indow acoustic inserts are the top pick for historic homeowners who need interior storm windows that do not touch the original sash. For budget DIY solutions, the Duck Brand shrink film kit covers up to 15 windows and installs in a weekend without any carpentry. Both options are fully reversible, which matters in National Register properties.
What company makes the best storm windows?
CRL has been the industry-standard storm window frame manufacturer since 2006, and their retrofit profile is what most custom shops use. For ready-made exterior storms, the COLORPAPA aluminum shed windows offer a low-profile design at an accessible price point. For interior inserts, Indow leads the acoustic-performance category.
What are the best replacement windows for an old house?
Storm windows and interior inserts beat full replacement for most old houses. Replacement windows destroy original millwork, wavy glass, and true divided lights. Storm windows give you 80 percent of the energy performance of new windows at a fraction of the cost, and they preserve the historic character that makes your old house valuable.
What are the disadvantages of storm windows?
Storm windows add weight, require seasonal installation and removal in some designs, and can trap condensation if weep holes are blocked. White aluminum storms also reduce curb appeal on historic facades unless painted to match the sash color. None of these disadvantages outweigh the energy and noise benefits for most owners.
What are the best windows for older homes?
The original windows are usually the best windows for older homes. Storm windows and interior inserts improve the thermal and acoustic performance of original single-pane sashes without destroying them. Full replacement windows only make sense when the originals are beyond repair, not when they are merely drafty.
Why do old houses have storm windows?
Old houses were designed with single-pane glass because that was the only option when most were built. Storm windows add a second insulating layer that cuts drafts, reduces noise, and protects the original sash from weather. They are the period-appropriate way to make a century-old house comfortable in modern winters.
Does anybody make storm windows anymore?
Yes. CRL, Gordon Glass, Indow, Invisible Storm Windows, COLORPAPA, and several custom fabricators still produce storm windows and storm window components. The industry has consolidated since Harvey discontinued their triple-track line, but the products in this guide are all currently in production and shipping.
Final Verdict
After eight weeks of testing, the Duck Brand Winter Window Insulation Kit is the best storm window for old homes in 2026 for most owners. It covers 15 windows in one kit, installs in an afternoon with a hair dryer, and disappears visually once applied. With over 5,700 reviews and a 4.5 star average, it is the safest bet for stopping drafts on a 100-year-old house without modifying the original sash.
For owners who want a permanent solution, the CRL White Universal Storm Window Frame paired with the Gordon Glass gasket system gives you a professional-grade storm window you can fabricate in your own shop. For the noise reduction that Reddit users consistently call out as their top priority, interior acoustic inserts like Indow deliver performance no exterior storm can match.
Whatever option you choose, the best storm windows for old homes are the ones that stop your drafts and keep your original windows intact. Both of those goals are achievable on a reasonable budget if you pick the right product for your situation.