Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Windows & Doors Services in Foster City, CA
Window and door work in Foster City comes down to one thing sooner or later: salt air, lagoon moisture, and homes built between 1968 and 1985 that are now showing their age at every frame. We measure every opening twice before we quote, register both warranty layers in writing before our truck leaves your driveway, and a live person answers when you call (888) 635-0804. If the pane is not true, the job is not done.
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 Foster City Homeowners Choose TruePane Windows & Doors
Homeowners off Edgewater Boulevard and in the lagoon-side tracts around Admiralty and Marlin tend to ask the same questions: how long will the replacement last against marine air, and will the door actually fit after two decades of settlement. We answer with a Done Right Promise and The Keystone Standard on every job, no fine print. Our crews are background-checked and uniformed, and they work in your home the way they would work in their own mother’s.
Dale Kessler founded the company on a rule that governs every install: if the pane is not true, the job is not done. Homeowners in the Isle Cove and Sea Colony neighborhoods have relied on us because we quote manufacturer lines side by side on paper, state the warranty durations in writing, and show up when we say.
Windows & Doors Services We Offer in Foster City
Window Installation
We install new-construction and retrofit windows across Foster City, including impact-rated glass for lagoon-front exposures where salt spray and morning fog run hard against aluminum and wood alike. Every opening is measured twice before an order is placed.
Learn more about our Window Installation in Foster City.

Door Installation
We set exterior and interior doors that close square and seal tight, even when decades of Bay-fill settlement have racked the rough opening. Exterior door work on lagoon-side homes often requires shimming and re-setting the frame to correct bind points at the corners.
Learn more about our Door Installation in Foster City.

Window Replacement
Most Foster City homes still carry original aluminum single-pane windows, and we replace them with energy-efficient or impact-rated units sized to the existing openings. Failed glazing seals and corroded frames get measured, quoted, and swapped without a surprise line item on the bill.
Learn more about our Window Replacement in Foster City.

Impact Windows & Doors
Lagoon-front and outer-peninsula exposures take wind and salt from multiple directions, so we supply and install impact-rated lines from manufacturers including PGT and CGI. The glass is heavy, the frames are reinforced, and the install has to be exact the first time.

Energy-Efficient Windows
Fog condensation on single-pane glass is nearly year-round in Foster City, and low-E double-pane replacements change that immediately. We quote the U-factor and solar heat gain numbers in writing so you see what you are buying.

Sliding & Patio Doors
Original aluminum patio sliders are the single most common failure point we see in Foster City, usually worn rollers and corroded tracks on lagoon-facing units. We replace them with modern sliders and French patio doors that glide and seal.

Glass Railing Systems
For lagoon-side decks and upper-story balconies, we install code-compliant glass railing systems that hold up to constant salt exposure. We pull permits where required and handle the inspection process.

Custom Windows & Doors
When a standard unit will not fit, we order fully custom windows and doors to the exact opening. TruePane is an authorized installer for more than a dozen manufacturer lines, and we quote options side by side on paper so the choice is clear.

Neighborhoods We Serve in Foster City
Our crews work throughout Foster City, from the lagoon-front lots to the inland tracts. Typical response time for a free estimate anywhere in the city is one to two business days, and most replacement work is scheduled within the week.
- Isle Cove
- Sea Colony
- Admiralty
- Marlin
- Edgewater
Why Foster City’s Climate & Housing Affect Windows & Doors
Foster City was built almost entirely in the late 1960s through the 1980s on dredged Bay fill, and its extensive lagoon system means a large share of homes sit directly on waterfront lots exposed to constant salt-laden air from multiple directions. That combination of aging original aluminum-frame single-pane windows and chronic salt-air corrosion makes window and door replacement not just a comfort upgrade but an accelerated-maintenance necessity that neighboring inland Peninsula cities like San Mateo rarely see at the same rate.
Because the entire city sits on compacted Bay fill, subtle ground settlement is ongoing. We routinely find door frames in Foster City that have racked out of square over decades, causing exterior doors to bind or gap at the corners. On nearly every lagoon-side replacement, fitting and shimming the rough opening back to true is the first real step of the job, not an afterthought.
Pricing for Windows & Doors in Foster City
Replacement window prices in Foster City typically run from $850 to $2,400 per opening installed, depending on size and whether the unit is energy-efficient or impact-rated. Exterior door replacement runs $1,600 to $4,800 installed. Sliding patio door replacement runs $2,200 to $5,500. Impact-rated lines from PGT and CGI land toward the upper end of each range for good reason.
We offer a permanent 5% discount for seniors and veterans, a free written repair estimate, and a maintenance check for existing windows and doors. Call (888) 635-0804 for a free, written, line-item estimate.
Service Area - Cities Near Foster City
In addition to our work in Foster City, TruePane serves homeowners in Parkway, Arden-Arcade, Ladera Heights, and Commerce.
Serving Foster City, CA - Our Local Coverage Area
We’re based in the Foster City 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 Foster City
Window replacement in Foster City typically runs $850 to $2,400 per opening installed, with impact-rated glass on the higher end. Salt-corrosion damage on original aluminum frames sometimes adds prep work, but we give you a written line-item quote before any work starts. Call (888) 635-0804 for an exact quote, estimates are free.
No. TruePane gives upfront line-item pricing, and we do not add surprise charges. If we open a wall and find rot or a racked rough opening, we stop, show you what we found, and give you a written change order before doing anything else.
Yes. Where Foster City requires a permit for structural openings, impact-rated products, or balcony rail systems, we pull the permit and handle the inspection. Our work has to pass, and we stand behind it.
Most single-opening replacements are completed in one visit. A full house of windows can take two to four days including trim and cleanup. We will tell you the schedule in writing before we start, and we show up when we say.
Yes. Worn rollers, corroded tracks, and failed seals on original aluminum sliders are among the most common jobs we handle in Foster City, especially on lagoon-facing units. Call (888) 635-0804 to schedule a free estimate, and ask about our maintenance check if the door still operates but drags.
Call TruePane for Windows & Doors in Foster City
Whether you are off Edgewater Boulevard, in Sea Colony, or on a lagoon-front lot in Isle Cove, we are the last call you need to make on a window or door. A live person answers 24/7 at (888) 635-0804. Estimates are free, pricing is upfront, and the work is done right the first time because that is the standard Dale Kessler put on the whiteboard and never took down.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Foster City and the greater Bay Area.
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 Foster City 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.



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