New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors San Francisco pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Patio Door Installation Across San Anselmo
Patio door installation in San Anselmo usually runs $2,400 to $5,800 for a standard sliding or French unit, installed. The wider spread here versus neighboring towns comes down to the age of the housing stock. Homes built before 1940 often need custom shimming, jamb extensions, and occasional header work once the old door comes out. That is not a surprise we spring on you later. It goes in the written quote before we start. If you are weighing the project, call (831) 273-7126 and we will walk the opening with you.
Why Meridian Windows and Doors San Francisco Is San Anselmo’s Preferred Patio Door Installation Company
We are the windows-and-doors arm of the Garrison Partners family, operating to The Garrison Standard since 2009. That standard is simple: show up when we say we will, put the price on paper before any work starts, and back every install with the 365-Day Done Right Promise. If it fails within a year, we return at no charge. San Anselmo homeowners tend to ask the same first question: who is actually walking through the door? Every technician is background-checked and in uniform, and our phones are answered by a live person around the clock. No voicemail loops. Dispatch and scheduling for San Anselmo work are coordinated from our San Francisco Bay Area office, and crews serve the town locally.
Elliot Vance leads the team. He has seen enough settled door openings in the Seminary and Barber neighborhoods to know what an honest quote looks like here. We do not price a patio door replacement in San Anselmo the way we would price one in a 1990s tract subdivision. The house tells us what the job costs. We just write it down clearly.
Sliding Door Repair in San Anselmo
Sliding Door Repair in San Anselmo typically means fixing a door that has become hard to open, developed a fog between the panes, or started leaking at the sill. Most repairs run $180 to $650 depending on what is actually wrong: roller replacement on a single panel is on the low end, while replacing a failed dual-pane glass unit lands higher. We also see warped tracks on older aluminum sliders from the 1960s and 1970s hillside homes, where sun exposure has taken a toll. A repair is the right call when the frame is still square and the surrounding weatherproofing is intact. When the frame itself has rotted or the opening is badly out of square, replacement becomes the better use of your money.
Roller and Track Work
San Anselmo’s dry, sunny rain-shadow position means dust and grit accumulate in tracks faster than in fog-heavy towns like Mill Valley. That grit wears down nylon rollers. We replace rollers, clean and realign tracks, and adjust the strike plate so the door latches cleanly. This is usually a same-visit fix and the price is quoted before we disassemble anything.
Glass Unit Replacement
When the seal on a dual-pane unit fails, condensation fogs the glass and the door loses insulating performance. We replace the glass unit, not the whole door, when the frame is sound. In San Anselmo, UV exposure on south-facing doors accelerates seal failure. We spec low-E glass, which is a thin coating that reflects heat while letting light through, so the new unit will not fail the same way in five years.
Patio Door Replacement in San Anselmo
Patio Door Replacement in San Anselmo is a full-removal-and-new-install job, and it makes sense when the frame is compromised or you want an upgrade in glass performance, security, or operating style. Expect to pay $2,400 to $5,800 for most homes here. A straight swap of a standard 6-foot slider in a mid-century home trends toward the lower end. A custom-fitted French door in a pre-1940 bungalow with a settled opening and preservation-sensitive trim will land at the higher end. We carry eight manufacturer lines including Therma-Tru, Mr-Glass, ViewLux, and PGT, so the door we quote is the one that fits your opening and your home’s character, not whatever happens to be in the warehouse.
Out-of-Square Openings and Structural Corrections
Many pre-1940 San Anselmo homes sit on expansive clay soils that shift seasonally. We routinely find original patio door openings out of square by half an inch or more. Our installers correct that with custom shimming and jamb extensions before the new unit goes in. You cannot fix a twisted opening by forcing a new door into it and hoping the trim hides the gap.
Stucco Homes and Waterproofing Redo
Spanish Colonial Revival and Mediterranean stucco homes are common here, and their original patio doors were flashed with building paper that has long since disintegrated. When we pull the old door, we often find rot in the sub-sill and king studs. We re-flash and re-seal the entire opening with modern materials before the new door is set. Skipping that step is how a new door leaks within three years.
Trusted Brands We Service in San Anselmo
We are authorized to install and replace products from PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. For San Anselmo homeowners, that means we can match an existing door’s stile-and-rail profile on a historic home or spec an impact-rated slider for a hillside deck without pushing you toward a single brand. We keep stock in the Bay Area, so lead times for standard units stay short. Custom orders, especially those that must clear San Anselmo preservation review, take longer. We tell you the honest lead time before you sign anything.
Common Patio Door Installation Problems We See in San Anselmo Homes
- Settled openings from clay soil movement. Pre-1940 homes in the Seminary and downtown flats often have rough openings out of square by half an inch or more. We correct this with milled shims and jamb extensions, and the correction is written into the quote.
- Rot from failed waterproofing on stucco homes. The original building paper behind a 1920s or 1930s stucco-clad door is usually gone. Water intrusion rots the sub-sill and king studs. We reframe and re-flash before installing the new door.
- Undersized headers on mid-century hillside sliders. Many 1960s and 1970s aluminum sliders were framed with non-load-bearing headers. When a permit triggers a structural review, those headers require an upgrade. We handle that with a structural engineer’s sign-off and price it as a written allowance in the contract.
- Historic preservation friction. San Anselmo’s pre-1940 bungalows and Mediterranean revival homes are subject to strict preservation guidelines. Off-the-shelf doors will not pass review. We match stiles, rails, and glass profiles so the replacement looks like it belongs.
Pricing for Patio Door Installation in San Anselmo, CA
A standard sliding patio door replacement in San Anselmo runs $2,400 to $3,800. French door replacements run $3,200 to $5,800. Add $200 to $500 when the existing opening needs significant shimming or jamb work from settlement, which is common here. If the opening needs structural header work, that gets priced as a written allowance in the contract so you approve the number before we spend it. We do not give a verbal ballpark and then change it at the door. The price goes on paper before any work starts, and it stays there. Call (831) 273-7126 for a free estimate on your specific opening.
We Also Serve Cities Near San Anselmo
Our crews handle Patio Door Installation throughout Marin and the East Bay. Beyond San Anselmo, we regularly work in San Rafael, Larkspur, Richmond, and San Pablo. If you are nearby and wondering whether we cover your street, call and ask. The answer is usually yes.
Serving San Anselmo, CA - Our Local Coverage Area
We’re based in the San Anselmo 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 Patio Door Installation in San Anselmo
Yes, it often does, especially in the Seminary neighborhood and other early-20th-century pockets where original wood doors remain. The town’s guidelines require replacements to match the original stile, rail, and glass profiles. That means custom fabrication rather than an off-the-shelf unit. We handle this regularly and will tell you during the estimate whether your home triggers review. The cost of a preservation-compliant custom door starts around $4,000 installed. Call (831) 273-7126 for an exact quote on your home.
We correct the opening before we install. That means measuring the deviation, milling custom shims, and installing jamb extensions so the new door sits plumb and level. For openings off by more than 3/4 inch, we may need to reframe one side. This correction is standard practice on San Anselmo’s clay soil and is priced into the written quote, not sprung on you mid-job.
The two most common are structural and energy compliance. If the permit review finds a non-load-bearing header over the original opening, the inspector will require a load-rated header. Safety glass is also required in any door with glazing within 24 inches of the door edge or within 18 inches of the floor. We pull the permit, handle the required corrections, and price each one as a written allowance before work begins.
Yes. San Anselmo sits in the rain shadow of Mount Tamalpais, so homes here get more sun and UV than neighbors in Mill Valley. That is why we spec low-E glass with a UV-blocking interlayer on south-facing and west-facing doors. The coating reflects heat while letting light through, and it dramatically slows seal failure. A low-E dual-pane sliding unit for a San Anselmo home runs $2,800 to $4,200 installed depending on size and frame material.
Four to eight weeks for most custom orders. The range depends on the manufacturer and the window and door profile being matched. Therma-Tru and ViewLux custom doors typically land closer to four weeks. Highly specific profiles that require millwork matching a 1930s original can extend to eight weeks. We give you the real lead time when we write the quote, not an optimistic guess. Call (831) 273-7126 and we will walk you through the timeline for your home.
In the Seminary neighborhood, we replaced a 1930s Craftsman’s original patio door with a Therma-Tru sliding unit after discovering the rough opening had settled 5/8 inch on one side and the existing jamb was dry-rotted from years of failed waterproofing. Our techs re-framed the opening to true square, added a jamb extension milled to match the original redwood trim, and installed a low-E insulated glass unit with impact-rated glazing before re-flashing and re-sealing the exterior. That is the difference between a door swap and a door installation done to The Garrison Standard.
A meridian is a fixed line you measure everything against. That is what the name means and how we run every install in San Anselmo. The written price is the line. The 365-Day Done Right Promise is the line. If the door we hang does not operate smoothly or leaks at the sill within a year, we come back and make it right at no charge. Call (831) 273-7126 to schedule your free estimate.
Written by Elliot Vance, Owner at Meridian Windows and Doors San Francisco, serving San Anselmo since 2009.
Six Reasons Homeowners Choose Meridian Windows and Doors 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.