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PGT
CGIFree in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Get your free estimateWindow Company in San Francisco, CA
We’re Lightwell Windows & Doors, a window company serving San Francisco with replacement and installation work tailored to the city’s older homes, coastal weather, and strict building rules. San Francisco jobs are rarely off-the-shelf: wood-framed Victorians, fog-driven moisture, and tight lot lines mean we measure twice, plan around historic details, and put every price in writing before the first tool comes out. Call (831) 480-4124 for a free estimate.
Why San Francisco Homes Are Different
San Francisco’s ornate Victorian and Edwardian homes, many built between 1880 and 1920, require custom-fitted windows and doors that preserve historic character while meeting strict seismic and energy codes. A standard-size unit from a big-box store rarely fits a 1910 double-hung opening in Noe Valley or a rusted steel casement in the Sunset. The fog, salt air, and persistent marine layer accelerate corrosion on metal hardware and cause premature failure of wood sashes, so material choice matters more here than inland. Cool summers mean air sealing is the real energy story, not solar heat gain. And many neighborhoods, from the Richmond to Bernal Heights, have preservation review boards that expect period-appropriate millwork, not a vinyl insert that erases the original trim profile.
Styles & brands we work with
Our Main San Francisco Services
Homeowners across San Francisco call us most often for two needs: replacing old, drafty, or fog-damaged windows, and installing new windows or doors during remodels and additions. Each service has its own page with pricing and neighborhood notes.
Window Replacement in San Francisco
Replacing windows in San Francisco usually means pulling out original single-pane double-hungs from a wood frame and setting in a custom-sized unit that matches the opening and the home’s character. We work with brands like Mr-Glass and ViewLux to spec frames that hold up against salt air and fog without losing the proportions the house was built with. Details on pricing, lead times, and what crews do to protect your floors and trim are on the dedicated page. Window Replacement in San Francisco covers the full process.
Window Installation in San Francisco
New construction and addition work in San Francisco brings its own constraints: small job sites, limited staging area, and inspectors who expect seismic anchoring and proper flashing details. We install new windows into rough openings with the jamb extensions, insulation, and exterior trim that keep moisture out during the wet winter months. Product selection, including ECO Window Systems for tighter budget-conscious projects, is walked through in detail on the service page. Window Installation in San Francisco has pricing and scope notes.
Door Installation in San Francisco
Many San Francisco entry doors are original paneled fir or oak, and a good install preserves the character while upgrading the threshold, weatherstripping, and hardware. We also handle back doors, side doors, and interior door swaps in remodels. Therma-Tru fiberglass fronts work well here because they resist the fog-driven rot that plagues wood doors after ten wet winters. Read specifics about fit, finish, and timeline on the page linked here. Door Installation in San Francisco explains the process.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Francisco
We carry eight manufacturer lines, and in San Francisco we spec them by project: Mr-Glass and ViewLux for historic wood replacement, Therma-Tru for entry doors, and ECO Window Systems where budget and energy code collide. Check our brands page for the full lineup and typical lead times.
See the difference
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Below are the typical ranges we quote for common jobs in San Francisco. Every project gets a written line-item price before any work starts, so the number you approve is the number you pay.
| Service | Typical range in San Francisco |
|---|---|
| Window replacement (standard double-hung, per opening) | $800 – $1,400 |
| Window replacement (custom-size Victorian double-hung, per opening) | $1,200 – $2,800 |
| Window installation (new construction, per window) | $600 – $1,200 |
| Window installation (addition, per window) | $700 – $1,500 |
| Door installation (standard entry door) | $1,500 – $3,500 |
| Door installation (custom front door, period-appropriate) | $2,500 – $6,000 |
| Interior door installation (per door) | $350 – $800 |
| Sliding door installation | $2,000 – $4,500 |
| Storm door installation | $500 – $1,100 |
| Hardware replacement (locks, hinges, weatherstripping, per door) | $150 – $450 |
Prices in San Francisco push higher when we’re working on a third-floor unit with no elevator, matching 1920s trim profiles with custom millwork, or coordinating with a historic preservation review. Our upfront pricing rule means any of those extras are itemized and approved in writing before the work begins, never added at the end.
Neighborhoods We Serve in San Francisco
We run crews throughout the city, from the fog belt out to the bay side. Typical scheduling is within a week or two depending on product lead time, and we protect floors, furniture, and pets on every visit.
- Sunset District (Inner and Outer)
- Richmond District
- Noe Valley
- Bernal Heights
- Mission District
Service Area – Cities Near San Francisco
Our San Francisco crews also cover nearby cities for homeowners just outside the city line. If you’re in Daly City, CA, South San Francisco, CA, Emeryville, CA, or Berkeley, CA, the same equipment and crews serve those areas, and the same written-price rule applies.
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 About Window Company in San Francisco
Yes. We work with homeowners and review boards that require period-appropriate millwork and materials, and we often supply custom-sized sashes that match original profiles rather than replacing character with generic inserts. Call (831) 480-4124 and tell us your district, and we’ll walk through what’s likely to be needed.
Early site visits are usually available within a week, and once you approve the written estimate, we order product immediately. Typical time from approval to completed install is two to four weeks, depending on the brands and whether custom sizing is required. Call (831) 480-4124 for a specific timeline.
Yes. Our crews navigate street parking, tight alley access, and multi-story walk-ups daily. We bring our own mats, shoe covers, and drop cloths, and we schedule around street cleaning and parking restrictions so the workday starts without a ticket. Questions about a specific property? Call (831) 480-4124.
For a free, written estimate on any window or door project in San Francisco, call (831) 480-4124. Keith Yamada leads our San Francisco location, and our team will talk through your home’s needs, the right products, and an honest price before anything is scheduled.
Six Reasons Homeowners Choose Lightwell Windows San Francisco
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.
Other Lightwell Windows San Francisco Services
What Neighbors Say About Lightwell Windows San Francisco
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Francisco Customers Say
"Nice work and very clean. The only small thing was a bit of caulk smudge on one sill that I wiped off myself. The install itself was careful and the windows are excellent."
- Nadia Cho"Front door replacement. The installers were careful, clean, and gentle, took their shoes off inside and swept the entry when done. The door seals perfectly and looks beautiful."
- Hollis Wyatt"Quiet, considerate install of several windows. They cleaned the glass and the sills and vacuumed every room. You'd never know a crew had been through. House is quieter and brighter."
- Brent Sakamoto