Window Replacement in San Francisco - Free In-Home Measure, Written Price

Fast, Reliable Window Replacement Across San Francisco

Window replacement in San Francisco typically costs $850-$1,900 per window for a standard insert, while full-frame replacements on older homes run $1,400-$3,200 per opening. On historic Victorians and Edwardians with load-bearing bay assemblies, $2,800-$6,500 per bay is a realistic range. TruePane Windows & Doors has replaced, restored, and retrofitted windows in San Francisco since 2008, and we do the work the way this city’s housing stock demands: custom, careful, and code-compliant. Call (888) 635-0804 for a free estimate, and a live person will answer, day or night.

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Why TruePane Windows & Doors Is San Francisco’s Preferred Window Replacement Company

San Francisco is not a city where you can slap a standard vinyl insert into a load-bearing bay and walk away. The Victorians in the Mission, the Edwardians in Noe Valley, the row houses in the Castro: these buildings were framed in old-growth fir, joined with hand-cut nails, and trimmed in wood that has weathered a hundred fogs. Our crews have worked on these blocks long enough to know exactly what hides behind the trim. We probe every sill before we price. We check the rough opening, not just the visible frame. That is the difference between a quote that holds and one that falls apart the moment the old sash comes out.

Our customers in San Francisco tell us they stayed because we wrote the numbers down, registered both warranty layers before the truck left, and sent a background-checked, uniformed technician who measured every opening twice. Dale Kessler, our founder and a second-generation glazier, keeps one rule on the whiteboard at our San Francisco Bay Area office: if the pane is not true, the job is not done. That standard governs every window we install in this city.

We answer the phone. Not a call center, not a voicemail tree. A live person, 24 hours a day, seven days a week. When you call about a fogged IGU seal in the Outer Richmond or a rotted sill in the Outer Sunset, you speak to someone who knows San Francisco’s housing stock. Schedule your free estimate at (888) 635-0804.

Our Window Replacement Services in San Francisco

Historic Window Restoration

Restoring original wood double-hung windows is often the only legal option in San Francisco’s designated historic districts. The Planning Department’s preservation rules prohibit vinyl replacements on a significant share of homes, particularly Victorians and Edwardians built between 1880 and 1915. We rebuild sashes, replace rotted stiles and rails with matching species, re-glaze, and weatherstrip so the windows function and seal without losing their historic character. This is craft work, and we have the bench to do it in-house.

Full Frame Replacement

When the sash, frame, sill, and rough opening all need to come out, you need a full-frame replacement. In San Francisco, this often means addressing what gets exposed: undersized headers, knob-and-tube wiring, missing shear hardware. We write structural repair allowances into the contract before we start, and any surprise gets priced and approved by you in writing before we touch the opening. A full-frame replacement in a Marina or Pacific Heights flat is different from one in a newer suburb, because the walls are older and the loads are heavier.

Insert Window Replacement

An insert replacement fits a new window unit inside the existing frame, preserving the original trim and siding. In San Francisco, the viability of an insert depends entirely on the condition of the existing frame, which means we probe the sill and rough sill on every quote in neighborhoods like the Sunset, Richmond, and West Portal. If the fir is sound, an insert is faster and less invasive. If the exterior face is punky from decades of fog moisture, we will tell you before you spend a dollar, not after the opening is torn apart.

Energy-Efficient Upgrade

San Francisco’s marine layer means homeowners fight condensation and heat loss in ways that inland Bay Area cities do not. Upgrading to energy-efficient windows in San Francisco with low-E glass and argon fill on west-facing and north-facing units in the Outer Sunset and Outer Richmond cuts the cold damp that drives rot into wood frames and rust into aluminum hardware. We quote manufacturer lines side by side on paper, including Andersen and Marvin, so you see exactly what you are buying. Most jobs are completed in a single visit, with no surprise line items on the bill.

Trusted Brands We Service in San Francisco

TruePane is an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI. For San Francisco’s fog-belt homes, we regularly recommend PGT and CGI for impact-rated options and Marvin wood-clad units where historic district rules apply. We also service Ply Gem and CWS in San Francisco for homeowners who already have those products installed. When you call (888) 635-0804, we can quote these brands side by side on paper so you see the actual per-unit cost, the warranty durations, and the energy ratings before you decide.

Common Window Replacement Problems We See in San Francisco Homes

• Rotted exterior sills on intact-looking windows. Original fir sills in the Sunset and Richmond fog belt can look solid from inside while the exterior face is completely punky, rotted by decades of cold, damp marine air. We probe every sill before pricing so you do not buy an insert replacement that turns into structural carpentry you never budgeted for.
• Failed IGU seals on load-bearing bay windows. Ornate bay assemblies on Victorians and Edwardians fail at the sealed glass unit because the load-bearing framing shifts over time and the salt air corrodes hardware. The fix requires custom sizing and specialized flashing work, not a stock window from a big-box shelf.
• Illegal vinyl swaps in historic districts. If your home sits in a designated historic district in the Mission, Castro, Western Addition, or Noe Valley, the San Francisco Planning Department’s preservation rules effectively prohibit vinyl replacement windows. We handle the paperwork and specify wood or wood-clad units that pass preservation review.
• Triggered code upgrades when walls open. San Francisco’s older flats often hide undersized headers, knob-and-tube wiring, or missing shear hardware behind the window trim. Once the wall is open, the permit triggers upgrades that stop work until addressed. We write allowances into the contract and get written approval before any change order.

Pricing for Window Replacement in San Francisco, CA

Window Replacement in San Francisco and Nearby Cities

We serve all of San Francisco, including the Outer Sunset, Outer Richmond, Mission, Noe Valley, Castro, Western Addition, Pacific Heights, and Marina neighborhoods. Our crews also cover Daly City, Sausalito, South San Francisco, and Alameda for homeowners who need the same careful, code-compliant work outside the city limits. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, so when you call, you get a local crew that knows the housing stock, not a regional call center routing a subcontracted team.

FAQs - Window Replacement in San Francisco

How It Works: What We Do When We Open Your San Francisco Walls

Opening up an older San Francisco home for window replacement turns up what the last century left behind: outdated wiring, undersized or damaged framing, failed waterproofing, and code upgrades a permit triggers once the walls are open. This is the single biggest reason a window quote moves in this city, and we handle it the way you would want a tradesperson to handle it. First, we inspect before we quote. Every estimate includes an awl probe of the sill and rough sill, a check of the header and shear hardware, and a look at any exposed wiring in the opening. Second, we write structural repair allowances into the contract, so you know in advance what a rotted rough sill or an undersized header might add to the bill. Third, if we find something we did not anticipate when the sash comes out, we stop, price it in writing, and get your signed approval before we touch the opening. No silent change orders, no TBD line items, no arguing. On a 1912 Edwardian flat in the Outer Sunset, our crew probed an original fir sill during an estimate and found it completely punky on the exterior face despite looking intact from inside, the slow fog-driven rot unique to the west side. We wrote a structural repair allowance into the contract, and when we pulled the old double-hung sashes, we discovered failed flashing tape and a rotten rough sill. We priced and got written approval for new framing before touching the opening. The homeowner’s new Marvin wood-clad casement windows with low-E glass and argon fill are sealed tight against the marine layer, and the sill probe is now standard on every Sunset and Richmond quote we write. That is a square deal, and it is the only way we work.

Call TruePane Windows & Doors for Your Free San Francisco Window Replacement Estimate

Ready to find out what your window project will actually cost in San Francisco? Call (888) 635-0804 and a live person will answer, 24 hours a day, seven days a week. We will schedule a free estimate, probe your sills, check your rough openings, and walk you through the options, brand by brand, with written warranty durations for each. Both warranty layers get registered in writing before our truck leaves your driveway, and every job is covered by our Done Right Promise. That is The Keystone Standard at TruePane, and it is the only way Dale Kessler has ever worked. Call today.

Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Francisco since 2008.