Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindows & Doors Services in San Anselmo, CA
San Anselmo sits low in the Ross Valley, and anyone who has lived here through a few wet winters knows what that means for windows and doors. Moisture finds its way into wood frames, swollen thresholds bind against old door bottoms, and hardware that worked in August binds by February. TruePane Windows & Doors handles the full range of window and door work here, from full replacements on 1920s bungalows to Impact Windows & Doors in San Anselmo on hillside homes. When you call (888) 635-0804, a live person answers and schedules a straight answer, not a pitch.
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.
Why San Anselmo Homeowners Choose TruePane Windows & Doors
We work on houses that were framed before building codes existed, and in neighborhoods like Seminary and Sleepy Hollow where lots slope and drainage runs toward the creek. That local familiarity matters because San Anselmo’s older homes rarely have square openings anymore. Our technicians measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves your driveway. That practice, which we call The Keystone Standard, came out of too many jobs where a new window went into an out-of-true frame and the homeowner ate the cost of the failure. We also back every job with a Done Right Promise. If it is not done right, we make it right without paperwork battles. Dale Kessler, our founder, keeps one rule on the whiteboard: if the pane is not true, the job is not done. We have been carrying that rule into San Anselmo homes for years, and our workmanship guarantee applies down to the last sill shim.
Windows & Doors Services We Offer in San Anselmo
Window Installation
We install new construction and retrofit windows sized to San Anselmo’s older openings, including non-standard double-hungs common to craftsman bungalows. We square the rough opening before the unit goes in, because a level window in a racked frame is a future air leak.
Learn more about our Window Installation in San Anselmo.
Door Installation
Entry doors, interior doors, and garage-to-house doors all sit differently in San Anselmo’s humid valley air. We check the sub-sill and rough opening for moisture damage before setting the new unit, so a door that latches clean today still latches clean after the next flood watch passes.
Learn more about our Door Installation in San Anselmo.
Window Replacement
Replacement windows in San Anselmo usually mean working around original casing that is worth keeping. We can pull the old sash and install new inserts without tearing out interior trim, or do full-frame replacement when the jambs have rot from years of valley moisture.
Learn more about our Window Replacement in San Anselmo.
Impact Windows & Doors
For hillside streets above the creek corridor, several San Anselmo neighborhoods fall under Marin County WUI fire-hazard designations that call for tempered or fire-rated glazing. We are authorized installers for PGT and CGI impact lines, which meet both windborne debris and wildfire exposure requirements, and we register every manufacturer warranty layer in writing.
Energy-Efficient Windows
San Anselmo’s enclosed valley keeps morning fog and evening marine air in contact with your sash frames longer than open Bay Area flatlands. Energy-Efficient Windows in San Anselmo with Low-E glass and a properly sealed frame cut the condensation that leads to rot on wood double-hungs, and the utility savings show up in both summer and winter.
Sliding & Patio Doors
A Sliding & Patio Door in San Anselmo that binds in the track is often a racked frame problem, not a roller problem. We rebuild the threshold and re-level the header on San Anselmo Creek-adjacent homes where settling after flood saturation has pulled the opening out of plane, then set the new door into a corrected frame.
Glass Railing Systems
For decks and balconies on San Anselmo’s hillside lots, Glass Railing Systems in San Anselmo preserve sight lines to Mount Tamalpais while meeting Marin County fall-protection code. We install frameless and semi-frameless systems with stainless hardware that holds up in valley humidity.
Custom Windows & Doors
Older San Anselmo homes rarely match stock sizes, and colonial revival cottages deserve proportionally correct glazing. We order custom units from manufacturer lines including Ply Gem and CWS, built to your rough opening dimensions and fitted on site by our own technicians.
Neighborhoods We Serve in San Anselmo
Our crews work throughout the 94960 ZIP code, from the flat streets near downtown to the narrower lanes climbing the hillsides. Typical response for an estimate within San Anselmo is same-week scheduling, and most repairs we complete in a single visit.
- Seminary
- Sleepy Hollow
- Downtown San Anselmo (near San Anselmo Avenue and Tamalpais Avenue)
- The Highlands
- Brookside
Why San Anselmo’s Climate & Housing Affect Windows & Doors
San Anselmo gets more rain than its neighbors on higher ground, and the water that falls on the surrounding hillsides drains toward San Anselmo Creek. In 2005 and 2006, the creek topped its banks and flooded the downtown-adjacent neighborhoods, warping door frames, swelling thresholds, and destroying weatherstripping on ground-floor entries. We still see doors in the flats that bind in July because their frames shifted after sitting in saturated soil for a week nearly twenty years ago. Homes along Tamalpais Avenue and San Anselmo Avenue show this most clearly: a door that swings and latches correctly at installation can gap within one wet season if the underlying frame correction was never made. On the hillsides, WUI fire-hazard rules push toward tempered and impact-rated glazing. Down in the flats, the priority is moisture management. Both are real, and both shape how we specify products for each house.
Pricing for Windows & Doors in San Anselmo
We give written, line-item quotes before any work begins, and the number on the page is the number on the bill. No change orders hiding in the fine print, no surprise line items after the truck leaves.
- Single window replacement (standard size, retrofit): $450-$950 installed
- Full-frame window replacement with exterior trim: $800-$1,600 per opening
- Entry door replacement (standard 3’0″ x 6’8″ pre-hung): $950-$2,200 installed
- Sliding patio door replacement (standard 6’0″): $1,400-$3,000 installed
- Custom window or door with non-standard sizing: add 25-45% to standard pricing
- Door frame squaring correction before new unit set: $150-$400 depending on severity
We offer a free written repair estimate, a maintenance check, and a standing 5% discount for seniors and veterans. Call (888) 635-0804 for an exact quote. Estimates are free.
Service Area - Cities Near San Anselmo
TruePane Windows & Doors serves San Anselmo and the surrounding Ross Valley communities from our San Francisco Bay Area office. If you are in Fairfax, Kentfield, San Rafael, or Larkspur, the same crew standards and warranty practices apply. Call us and a live person answers.
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 Windows & Doors in San Anselmo
Most San Anselmo homeowners pay between $450 and $1,600 per window depending on whether it is a retrofit insert into the existing frame or a full-frame replacement with new exterior trim. Older craftsman bungalows with non-standard rough openings typically fall on the higher end because the units are custom-sized. Call (888) 635-0804 for a written quote. The estimate is free, and the line items are spelled out before anything gets ordered.
Marin County and the Town of San Anselmo require permits when rough openings are altered, when structural framing is corrected, or when glazing changes affect fire-rated or egress requirements. Like-for-like replacements that do not change the opening size often fall under the over-the-counter permit path. We handle permit paperwork on behalf of homeowners when the job requires it, and we pull the permit before the first cut.
No. Once we have measured the opening and written the line-item quote, that number holds unless you change scope or we open the wall and find structural damage that must be addressed for safety. If that happens, we stop, show you what we found, and put the new number in writing before proceeding. No surprise invoices.
San Anselmo sits on the floor of Ross Valley along San Anselmo Creek, and the valley’s high water table plus repeated flood saturation causes foundation settling that pulls door frames out of square. A door that fits perfectly in the dry season can stick hard after the first heavy winter rains. The fix is usually frame correction before the new door goes in, and that is part of what we check on every San Anselmo door job.
Yes. Hillside streets in the 94960 ZIP code fall under Marin County WUI fire-hazard designations in some cases, and we install tempered and fire-rated assemblies from PGT, CGI, and other manufacturers that meet those mapped requirements. We check the WUI map before specifying glass, so you do not end up paying for a replacement that does not satisfy the county’s final inspection.
Get a Straight Answer and a Straight Number
If you have a fogged seal, a door that sticks, or a full window replacement you have been putting off, call (888) 635-0804. A person answers, asks a few questions, and schedules your free estimate. You will get a written line-item quote, both warranty layers registered before the truck leaves, and a 90-day promise that says we stand behind the work. That has been our standard from the start, and it applies to every San Anselmo home we touch.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Anselmo and the Ross Valley.
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 Anselmo Customers Say
"Our bay window had rotted at the sill and two other outfits wanted to talk us into a flat picture window instead. TruePane rebuilt the opening and matched the original look. Neighbors have knocked on the door about it."
- Gene A."Two entry doors. Showed up when they said, second day was a half day like they said, and the painter they recommended confirmed the frames were dead plumb. The financing was explained in actual dollars, not a brochure."
- Janet R."Impact windows on the whole house. They handled the permit, the inspection, and gave me a folder with every approval number for the insurance company. My windstorm premium dropped enough to notice."
- Bill T.