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AfterWindows & Doors Services in San Mateo, CA
Window and door work in San Mateo usually falls into one of three categories: a fogged double-pane seal that needs a new glass unit, a wood frame that has started rotting from years of bay fog, or a homeowner finally deciding to replace the original single-pane windows from a 1930s bungalow. TruePane handles all three, plus full door replacement and custom work. Call us at (888) 635-0804 and a live person picks up. The same crew that answers your questions is the one that shows up to measure the opening.
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 Mateo Homeowners Choose TruePane Windows & Doors
Dale Kessler founded TruePane in 2008, but the work behind the name goes back further than that. He is a second-generation glazier. The founding rule, the one still on the whiteboard in the shop, is simple: if the pane is not true, the job is not done. San Mateo homeowners in neighborhoods like Baywood and Aragon call us because word gets around when a company registers both manufacturer warranty layers in writing before the truck leaves the driveway. That is what we call The Keystone Standard. It is not a marketing phrase. It is a checklist item on every job.
We are an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows. When we quote a job, we put the manufacturer lines side by side on paper so you can see exactly what you are paying for. No verbal shortcuts. A background-checked, uniformed technician measures every opening twice. And if a project runs into trouble, our Done Right Promise means what it says: we make it right, no paperwork fights.
Windows & Doors Services We Offer in San Mateo
Window Installation
New construction or full-frame replacement, set square and sealed against San Mateo’s damp marine air. We flash and level every opening before the window goes in, so the first winter storm does not find a gap.
Learn more about our Window Installation in San Mateo.
Door Installation
Entry doors, patio doors, and hinge adjustments for doors that bind in July when the humidity shifts. A door that will not latch is a security issue, and we treat it that way from the first call.
Learn more about our Door Installation in San Mateo.
Window Replacement
The bulk of our work in San Mateo is replacing single-pane wood-sash and rusted steel casement windows. We handle full-frame replacement properly, which in older homes means preserving original plaster surrounds rather than chipping them out.
Learn more about our Window Replacement in San Mateo.
Impact Windows & Doors
Impact-rated assemblies are not just for hurricane country. San Mateo homeowners choose them for noise reduction on busier streets and for the structural security they add to older wood-framed homes.
We are an authorized installer for PGT and CGI impact lines, and we register every warranty layer in writing.
Energy-Efficient Windows
San Mateo is not the hottest city on the Peninsula, but marine fog keeps windows damp and cold for months at a time. Low-E glass with a proper U-factor rating makes a measurable difference in both comfort and heating cost.
Every energy-efficient window we install must clear California Title 24 requirements for coastal climate zones.
Sliding & Patio Doors
A sliding door that drags on its track or lets fog seep in around the rollers needs more than lubricant. We rebuild or replace tracks, adjust rollers, and set the panel square so it glides instead of grinding.
Glass Railing Systems
For decks, balconies, and stairways, frameless glass railings preserve a clear sightline. We fabricate and install systems that meet San Mateo building code for load and safety without looking industrial.
Custom Windows & Doors
Odd rough openings are common in 94401’s older housing stock. A stock window will not fit a 1930s Craftsman opening that has settled a quarter inch out of square. We measure, order, and install to the actual opening, not a catalog dimension.
Neighborhoods We Serve in San Mateo
We work throughout the entire 94401 ZIP and the wider San Mateo area. The neighborhoods below are the ones we visit most often for older-home window and door work.
- Baywood
- Aragon
- San Mateo Park
- North Central
- Shoreview
The flatlands from El Camino Real west toward the bay keep us busy year-round. Most San Mateo service calls get a crew on site within one to two business days for the estimate.
Why San Mateo’s Climate & Housing Affect Windows & Doors
San Mateo’s 94401 core sits close enough to the San Francisco Bay that salt-laden fog rolls in from two directions. Marine air accelerates frame corrosion and wood rot far faster than in inland Peninsula cities like Redwood City or San Jose. We regularly see wood sashes in 1920s and 1930s bungalows that have rotted completely through at the sill, while the upper sash still looks serviceable from the inside. The damage hides where moisture pools.
The housing stock makes this worse. Much of 94401 is weighted toward pre-WWII and early postwar single-family homes: Craftsman bungalows, Spanish Colonial Revival cottages, and mid-century ranches built between roughly 1920 and 1960. Most still have original single-pane wood-sash or steel casement windows. Add decades of damp marine air, and full-frame replacement is not an upsell. It is the only honest fix.
Older blocks near downtown San Mateo commonly have original 1930s and 1940s steel casement windows that have rusted shut or bowed out of square in their masonry or plaster openings. Cutting a rusted steel frame out without cracking the original plaster surround takes patience and the right tooling. It is a failure mode we rarely see in newer Peninsula suburbs, and it is one reason San Mateo homeowners call a specialist rather than a general contractor who mostly works in newer developments.
Pricing for Windows & Doors in San Mateo
Pricing follows the work the opening actually needs, not a flat per-window number. Here are honest ranges we have seen on recent San Mateo jobs:
- Single window glass replacement (seal failure): $180-$420 per opening
- Standard double-hung window replacement (mid-grade vinyl): $700-$1,100 per window installed
- Full-frame replacement in a 1930s home with rot repair and Title 24 compliant glass: $1,800-$3,200 per opening
- Entry door replacement (standard steel or fiberglass, pre-hung): $1,400-$2,800
- Sliding patio door replacement: $2,200-$4,500
- Custom window or door for a non-square rough opening: quoted after measurement
Every estimate is a written line-item quote. We do not change the price once work starts unless the opening reveals hidden damage, and if it does, we show you the damage before touching it. Seniors and veterans receive a permanent 5% discount. a free written repair estimate. Ask about the maintenance check.
Call (888) 635-0804 for an exact quote. Estimates are free.
Service Area - Cities Near San Mateo
Our crews serve San Mateo locally, and we work regularly in the neighboring Peninsula cities of Burlingame, Belmont, Millbrae, and San Carlos. Dispatch and scheduling are coordinated from our San Francisco Bay Area office.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 Mateo
Window replacement in San Mateo typically runs $700 to $3,200 per opening depending on whether it is an insert or full-frame job and whether old wood frames need rot repair. Full-frame work in older 94401 homes lands on the higher end. Call (888) 635-0804 for a written, line-item quote. Estimates are free.
Yes, most window and door replacements in San Mateo require a permit, and all permitted replacements must clear California Title 24 U-factor and SHGC thresholds for coastal climate zones. We pull the permits and handle the inspection. That is part of the job, not an add-on.
In most cases, yes. Our crews cut out the rusted steel frame carefully, brace the opening, and install a full-frame replacement that preserves the original plaster surround. This is specialized work, and it is common in the 1930s and 1940s homes near downtown San Mateo. Call (888) 635-0804 and we can tell you what your specific opening needs.
A standard window replacement is usually completed in one visit. Full-frame replacement with rot repair, stucco patching, or custom sizing may take two to three visits depending on curing times. We set expectations in writing before the first day of work, and we never leave the job half-finished without telling you the schedule.
Only if the opening reveals hidden damage we could not see during the estimate, such as rotted framing behind the stucco or a termite-damaged sill. If that happens, we stop, show you the damage, and get your approval on the revised number before proceeding. No surprise line items on the final bill.
If your windows fog between the panes, your doors bind, or you are ready to replace single-pane originals with something that meets today’s code, call TruePane Windows & Doors at (888) 635-0804. A live person answers. Dale Kessler built this company on a simple rule: if the pane is not true, the job is not done. We stand behind every window, door, and warranty we install in San Mateo. Back to home.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Mateo with years of community-rooted glazing craft.
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 Mateo Customers Say
"Eleven windows replaced in two days. The crew chief, Marcus, showed me the level on every single frame before they caulked it. My wife noticed the street noise was gone before I did."
- Ronald P."A casement crank had stripped and the sash was swollen shut. The technician, Ray, fixed the crank on the spot and only then talked about replacement for the three windows that were genuinely done. That is why the whole street uses them now."
- Eleanor G."French doors to the patio, custom size because this house was built in 1961 and nothing is standard. Measured twice, three weeks to fabricate like they warned, and the install day they laid runners over my floors without being asked."
- Marie S.