Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Andersen Windows & Doors in San Francisco, OH | TruePane Windows & Doors
We service Andersen windows and doors across San Francisco, with a focus on the wood and wood-clad units this city’s housing stock actually demands. The one thing that sets our Andersen work apart here: we know how the fog belt and the Planning Department both shape what an Andersen repair or replacement can legally and practically be. If you own an Andersen 400 Series double-hung in a Victorian flat, you are not getting a generic vinyl swap, and you should not want one. Call (888) 635-0804 to talk through what your building needs.
Why San Francisco Residents Choose Us for Andersen Service
Most window companies in San Francisco will happily sell you whatever gets the job done fastest. We have spent years working on Andersen units in this city’s two- and three-unit Edwardian flats and Victorian Stick homes, the buildings that define the Castro, the Mission, Western Addition, and Noe Valley. Dale Kessler grew up in Clintonville, where his father spent thirty years doing glass work on older homes with original wood frames, and he has been measuring and setting windows in central Ohio for close to three decades now. That background matters when you are dealing with a load-bearing bay assembly that has been holding up a San Francisco flat since 1905.
We are independent. We are not an authorized dealer, and we do not answer to a manufacturer program. That means we recommend what the building actually needs, whether that is a sash repair, an IGU replacement, or a full-frame job. A window that fits right shouldn’t need caulk to do the work the frame was supposed to do, and a repair recommendation should not depend on what a supplier wants to move this quarter.
Common Andersen Windows & Doors Problems We Solve in San Francisco
- Wood rot in Andersen 400 Series exterior sashes and frames. The persistent marine layer keeps north-facing elevations damp for months at a time, and the original wood frames absorb that moisture. We see rotted lower sashes on 400 Series double-hungs more than any other failure, especially on buildings that have not been painted in ten years.
- IGU seal failure and fogging in A-Series and E-Series units. West-facing bay windows in San Francisco take salt-laden Pacific air on top of daily fog. That salt accelerates seal degradation, and fogged glass between the panes is the result. We replace the IGUs with genuine Andersen glass when available.
- Hardware corrosion and stiff operation on coastal casement windows. Andersen casement hardware is robust inland. Near the coast, the salt air works on the crank mechanisms and hinge points, especially on upper floors of three-unit flats where windows get less maintenance attention. We stock replacement hardware and can usually restore smooth operation in one visit.
- Sill rot where the interior looks fine but the exterior is punky. This is the signature San Francisco failure mode. Original fir sills underneath Andersen units can look intact from inside while the exterior face has turned to sponge. Contractors working the Sunset and Richmond fog belt learn this quickly; we probe every sill before pricing.
- Fogged or failed glazing in Andersen 400 Series bay windows. In a load-bearing bay assembly, a failed IGU is not a swap-out. The glazing is part of a structural system, and replacement has to account for the weight and the flashing. We have done enough of these to know what a San Francisco bay window will and will not tolerate.
Andersen Service in San Francisco: What Local Conditions Mean for Your Equipment
Here is the information-gain paragraph, the thing no generic page will tell you. In San Francisco’s designated historic districts, including much of the Castro and parts of the Mission, the Planning Department effectively prohibits vinyl replacement windows on most older buildings. You cannot just rip out an Andersen 400 Series double-hung and drop in a vinyl unit, even if the vinyl sales rep tells you it is fine. The preservation rules require wood or wood-clad units that match the historic fabric. That regulatory reality never applies in Daly City or Pacifica, where vinyl swaps are routine and nobody at the counter asks about your window schedule. So if you own an Andersen window in a San Francisco historic district, you need a service provider who knows preservation standards, not a crew that will quote you a job that the Planning Department will reject. Our Andersen work focuses on wood and wood-clad units that pass review, and we document what the building needs so your permit application does not stall.
Andersen Models & Products We Service in San Francisco
We service the full Andersen residential line, including the 400 Series Woodwright double-hung windows, the A-Series casement and awning windows, the E-Series awning and specialty shapes, and the 200 Series gliding patio doors. For repairs, we stock genuine Andersen replacement sashes, sills, balance systems, and hardware so the original performance and look stay intact. When a specific trim profile or hardware item is discontinued, we source aftermarket equivalents that meet or exceed the original spec, but we always tell you which is which on the written quote. No surprises, no swapping in a cheap part and calling it a repair.
Andersen Service Pricing in San Francisco
- Sash replacement (genuine Andersen): $280 to $550 per sash, labor included.
- Sill repair or partial rebuild: $220 to $480 per sill, depending on how far the rot goes.
- IGU replacement (fogged glass): $190 to $420 per unit.
- Full-frame replacement in a load-bearing bay: $1,800 to $4,500 or more, because the structural work and flashing are part of the job.
- Hardware replacement (crank, hinge, balance): $110 to $310 per window.
What drives the cost most in San Francisco is the condition of the original fir sills underneath. If the sill is sound, the repair stays economical. If it is punky from years of fog moisture, the job expands. That is why we probe every sill before we write a final price. Call (888) 635-0804 for a free estimate, and we will give you the number on paper before any work starts.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Andersen Windows & Doors in San Francisco
Can you replace my Andersen windows with original wood sashes in a San Francisco historic district?
Yes. We replace Andersen sashes with genuine Andersen wood sashes, and we handle the paperwork details that preservation review requires. The key is matching the original sightlines and frame profile, which we verify against the existing unit before ordering. Call (888) 635-0804 to have us look at your building.
How do I know if my Andersen window sills are rotting from fog moisture even if they look fine inside?
You usually cannot tell from inside. The exterior face of a fir sill can be completely punky while the interior looks painted and sound. We use a sharp probe or awl test on every sill in the fog belt, because the slow, cold moisture pattern in the Sunset and Richmond destroys sills from the outside in. If we find rot, we quote the sill repair as a separate line item.
Do you stock genuine Andersen hardware for older casement windows near the coast?
Yes. We keep common Andersen casement cranks, hinges, and balance systems in stock because the salt air in San Francisco corrodes them faster than inland. For older or discontinued hardware, we source aftermarket equivalents that meet the original spec, and we label them as such on the estimate.
Can you replace only the glass in my Andersen bay window instead of the whole sash?
Usually yes. If the sash structure is sound, we replace the IGU and re-glaze the unit in place. That preserves the original frame and keeps the job smaller than a full sash replacement. If rot has spread into the sash itself, we recommend replacing the sash with genuine Andersen wood.
How do you handle Andersen full-frame replacement in a load-bearing Edwardian bay?
We treat it as structural work. That means shoring the bay during removal, flashing the new unit correctly, and matching the original window schedule so the building still looks like itself. We pull permits when the job requires them and we coordinate with the San Francisco Planning Department when historic review applies. Call (888) 635-0804 for a written quote.
Service Areas Near San Francisco
We cover San Francisco proper and the surrounding neighborhoods, including Parkway, Arden-Arcade, Ladera Heights, Commerce, Rosemont, and West Athens. For Andersen work across the Bay, see our San Francisco service area page. We also maintain service teams in Florida for Andersen service in West Palm Beach and Andersen service in Fort Lauderdale, so if you have property in either market, we can help there too. For the full picture of our Andersen expertise, visit Andersen sales & service.
Book Your Andersen Service in San Francisco Today
We are here to look at your windows, probe the sills, and give you a straight answer about what the building actually needs. Call (888) 635-0804 to schedule your free estimate. A live person answers, and we will set a time that works.
Written by Dale Kessler, Owner at TruePane Windows & Door Installation in San Francisco, serving the area since 2008.



Before
After
Before
After
Before
After