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IKO Windows & Doors: The San Francisco Owner’s Guide
If you have an IKO window or door that’s not closing right, letting fog between the panes, or fighting you every time you turn the handle, we can match the part to your exact unit and install it for $5,310 to $17,700 per window or door in San Francisco. We keep IKO-compatible hardware, rollers, weatherstripping, and insulated glass units on hand, and we’ll tell you before any work starts whether the fix is a $50 roller cartridge or a full sash replacement. Most San Francisco owners discover the failure the way you probably just did: a window that suddenly takes two hands to open, a sliding door that grinds instead of glides, or condensation you can’t wipe off because it’s trapped inside the glass.

We’re an independent San Francisco remodeling and repair contractor, not an IKO dealer or affiliate. That matters because we’re free to tell you when a quality aftermarket part performs better than the original, and when the OEM part is the only thing we’d put back in.
Which IKO Models This Applies To

IKO has manufactured vinyl and aluminum windows and sliding glass doors across several series lines over the years, and the biggest compatibility gotcha we see in San Francisco is this: the hardware from one IKO series almost never fits another. A roller assembly from a 1990s aluminum slider won’t seat into a mid-2000s vinyl frame even though both say IKO on the corner of the glass. The right way to identify your window or door is to find the silkscreened label or etched code, usually on the side of the frame or between the glass panes, which lists the model series, glass type, and date of manufacture. If that label is faded or painted over, we measure the sash thickness, frame depth, and the exact screw-hole spacing on the hardware, then match from there.
For most IKO windows and doors installed in California homes, we recommend OEM parts when the unit is under a transferable manufacturer warranty or when the hardware is still in production. Once IKO discontinued a series, quality aftermarket equivalents from suppliers like Prime-Line and WRS usually match or beat the original specs. Graham Stein has spent the better part of three decades matching these parts, and he’d rather spend ten minutes finding the exact roller than sell you something close enough that wears out in a year.
Styles & brands we work with







Signs Your IKO Windows & Doors Is Failing
- Sliding door grinds or sticks halfway. The roller cartridges have flat-spotted or the track is full of San Francisco grit. The fix is usually new rollers and a track cleaning, not a new door.
- Window needs two hands to open or won’t stay up. The balance system, either a spiral or block-and-tackle, has lost tension. This is a specific spring-loaded part that often fails after 10 to 15 years of coastal humidity cycles.
- Fog or moisture between the glass panes. The insulated glass unit’s seal has failed. You can’t wipe it away because it’s inside the sealed unit. The glass unit gets replaced, not the whole frame.
- Drafts around the frame with visible daylight at the corners. Weatherstripping has compressed or the corner seals have worked loose. This is the cheapest fix and the one most often mistaken for a bigger problem.
- Handle spins freely or the latch won’t catch. The internal gear mechanism in the handle or mortise lock is stripped. Replacement handles are series-specific, which is where model identification matters most.
See the difference
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After
Before
After
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AfterReplacement Cost & What’s Included

For IKO window and door repairs in San Francisco, parts-and-labor jobs like roller replacements, balance swaps, and weatherstripping typically run $470 to $2,125. A full window replacement lands between $5,310 and $17,700, and a sliding door replacement mirrors that same range depending on size, glass package, and whether we need to reframe the opening. Impact window installation for IKO-compatible units in San Francisco runs $9,440 to $29,500, driven by the heavier frames and laminated glass.
Every IKO parts or replacement job includes the written price before any work starts, so you’ll never get a call after we open the wall saying the number moved. We line-item the part cost separate from labor on every invoice. The workmanship is covered by our 365-Day Done Right Promise: if the part fails or the install wasn’t right, we come back and make it right, no charge.
DIY or Call Us?
You can safely check a few things yourself: clean the tracks with a vacuum and a dry rag, inspect the weatherstripping for tears, and note exactly where the window binds or the door catches. What you shouldn’t do is start pulling out spiral balances or roller cartridges without knowing the series. IKO balance systems are under tension, and the wrong release sequence can send a spring end through drywall or into a hand. We have the right tools, the identification charts, and the replacements on the truck.
If you’re not sure which IKO window or door you have, call (831) 480-4497 and describe what it’s doing. We’ll help you identify it and give you an honest recommendation over the phone, free.
FAQs

A well-installed IKO window or sliding door in San Francisco typically lasts 20 to 30 years for the frame, with hardware and seals needing replacement every 10 to 15 years. Coastal fog and salt air in neighborhoods like the Sunset District accelerate seal and roller wear compared to inland Bay Area homes. Call (831) 480-4497 and we’ll tell you whether your unit is at end-of-life or worth one more hardware refresh.
Yes, in most cases the glass unit, rollers, balances, handles, or weatherstripping can be replaced on their own for a fraction of a full replacement. We’ll tell you straight if the frame itself is warped or the series is so old that parts are only available from salvage. The written price before work starts means you’ll know that number before you decide.
Roller, weatherstripping, and handle swaps usually take under an hour per unit. A full insulated glass replacement takes one to two hours once the glass arrives from the supplier, which is typically three to five business days in San Francisco. We schedule around your family’s quiet hours, and the crew cleans up with shoe covers and drop cloths on every visit.
We carry common IKO-compatible rollers, handles, latches, and weatherstripping profiles on the truck, and we source series-specific insulated glass units and balances from local San Francisco suppliers within days. We’ll confirm the exact part is available before we quote you. Call (831) 480-4497 for a free parts-matching check and written estimate.
Written by Graham Stein, Owner, Elmstead Remodeling San Francisco at Elmstead Remodeling San Francisco, serving San Francisco and nearby areas.


