Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
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AfterFast, Reliable Impact Windows & Doors Across Foster City
If you’re searching for Impact Windows & Doors in Foster City, you’re likely wondering what replacement will actually cost, how long it takes, and what the crew will find once the old frames come out. Here’s the straight answer: a typical impact window replacement in Foster City runs $850-$1,900 per opening installed, impact sliding glass doors run $3,200-$7,500, and entry doors run $2,400-$6,200 depending on size, frame material, and what’s waiting behind the drywall. Most jobs take one to two days per opening once materials arrive. Call (888) 635-0804 and we’ll walk the house, open a few walls where needed, and put the real number in writing before we touch anything.
Foster City is not like the rest of the Peninsula. The whole town sits on compacted Bay fill, most streets wrap around lagoons, and the salt air comes at your windows from three directions at once. We’ve worked Foster City long enough to know what that does to aluminum frames, seals, and door hardware. Our Impact Windows & Doors team plans for it on every job.
Why TruePane Windows & Doors Is Foster City’s Preferred Impact Windows & Doors Company
We’re not a franchise. Led by Dale Kessler, a second-generation glazier, TruePane Windows & Doors has been doing glass and door work the old way: measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves the driveway. Foster City homeowners tend to ask good questions because they’ve already been burned once by a fogged seal or a door that binds in July. We answer those questions plainly.
Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews serve Foster City directly. When you call, a live person answers. Not a voicemail tree, not a regional call center. That matters when a lagoon-side slider is stuck open and the marine layer is rolling in. Background-checked, uniformed technicians do the work, and every job carries the Done Right Promise. If the pane is not true, the job is not done.
Our Impact Windows & Doors Services in Foster City
Hurricane Impact Windows
Most Foster City homes still have their original single-pane aluminum windows from the 1970s and early 1980s. The seals on those units fail steadily in this climate, and the aluminum frames pit and corrode from salt-laden fog. We install impact-rated windows from PGT, CGI, and Ply Gem that hold up to the marine layer and actually reduce the fog-and-condensation problem. A standard bedroom window replacement in a Foster City tract home typically takes a full day including interior and exterior trim.
Impact Sliding Glass Doors
Lagoon-fronting homes in neighborhoods like Dolphin Bay and Marlin Cove run more sliders than almost anywhere else on the Peninsula. Those original aluminum sliders from the 1960s and 1970s are often corroded along the jambs, with rollers that have ground down to nothing. We replace them with impact-rated sliders using stainless steel rollers and full perimeter re-flashing. A typical lagoon-side slider replacement in Foster City runs $3,800-$7,500 depending on width and frame material.
Impact Entry & French Doors
Entry doors in Foster City take a beating from two directions: salt air attacking the hardware and ongoing Bay fill settlement racking the frames out of square. We regularly find doors that bind at the top corner or show daylight at the sill even when the slab reads level. We square the rough opening, shim to true, and install impact-rated entry or French doors that seat properly and stay that way.
Impact Garage Doors
The garage door on a Foster City home faces the same salt exposure as everything else, plus the added stress of a door panel system that runs on tracks and rollers. Corroded tracks cause binding, and the door starts eating itself. We install impact-rated garage doors with corrosion-resistant hardware and track systems sized for the opening as it actually is, not as the original builder drew it. Pricing for a standard two-car impact garage door in Foster City runs $2,800-$5,400.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Foster City
We’re an authorized installer for more than a dozen manufacturer lines, and in Foster City we most often quote PGT, CGI, and CWS for impact-rated work. We keep common parts and hardware for these lines stocked so a roller replacement on an older PGT slider doesn’t turn into a two-week wait. When we install new, you get side-by-side manufacturer quotes on paper so you see exactly what you’re buying and what each warranty covers. Both warranty layers get registered in writing before we leave. That’s The Keystone Standard, and it applies to every job in Foster City.
Common Impact Windows & Doors Problems We See in Foster City Homes
- Corroded aluminum frames from lagoon salt air: The multi-directional marine air in Foster City attacks aluminum frames measurably faster than in Redwood City or Belmont. We see frames pitted through in 40-year-old homes where inland houses of the same age are still intact.
- Racked door frames from Bay fill settlement: The entire city sits on compacted fill, and it’s still settling in subtle ways. Sliding glass doors and entry doors drift out of square, bind at the top corner, or gap at the sill even when the concrete slab looks fine.
- Failed seals on original single-pane units: Fog between panes is almost year-round here because the marine layer keeps glass surfaces cool and damp. The original insulated glass units from the 1970s and 1980s are now decades past their intended lifespan.
- Worn rollers and damaged weatherstripping on sliders: Lagoon-side sliding doors collect salt spray and beach sediment in the track. Rollers seize, homeowners force the door, and the jamb gets chewed up. By the time we’re called, the fix is usually a full frame replacement rather than a roller swap.
Pricing for Impact Windows & Doors in Foster City, CA
Let’s get specific. Impact windows in Foster City run $850-$1,900 per opening installed, and a whole-house replacement on a typical 3-bedroom lagoon-side home usually lands between $18,000 and $34,000. Impact sliding glass doors run $3,200-$7,500. Impact entry doors run $2,400-$6,200, and impact French door sets run $4,500-$9,800. Wind mitigation inspection and code compliance documentation runs $350-$800 depending on what the building department wants to see.
What moves the number: the condition of the rough opening once the old frame is out, whether settlement has racked the jamb and how far, whether the permit triggers electrical or waterproofing upgrades, and which manufacturer line you choose. We write allowances into the contract for known unknowns, and any surprise gets priced and approved in writing before we touch it. Call (888) 635-0804 for a free estimate with real numbers, not a range with a shrug.
We Also Serve Cities Near Foster City
Our crews work throughout the mid-Peninsula and beyond. We serve Parkway, Arden-Arcade, Ladera Heights, and Commerce with the same licensing, warranty registration, and Done Right Promise we bring to every Foster City job. If you’re just outside the city line, call us and we’ll tell you straight whether we can get to you this week.
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 - Impact Windows & Doors in Foster City
Foster City sits on a peninsula with lagoons on three sides, so salt-laden marine air comes at window frames from multiple directions rather than one prevailing wind. That constant multi-directional exposure means aluminum frames, door hardware, and weatherstripping corrode measurably faster here than in Redwood City or Belmont, which sit further inland and get less direct salt spray. We spec stainless steel hardware and corrosion-resistant frame materials on Foster City jobs for exactly this reason. Call (888) 635-0804 and we’ll tell you what your current frames look like once we open a wall.
Yes. Lagoon-fronting homes in Foster City need a more aggressive flashing detail than inland Peninsula houses because wind-driven moisture and salt spray work their way behind standard flashing. We re-flash the entire perimeter with butyl flashing tape before the new jamb extensions go in, and we lap the head flashing under the existing building paper rather than relying on store-bought Z-flashing alone. It takes longer, but it’s why our installs hold up. A free estimate includes a look at your existing flashing; call (888) 635-0804.
Because the city is built on compacted Bay fill, the ground settles unevenly and slowly over decades. That racks door frames out of square, so exterior doors bind at the top or gap at the sill even when the slab looks level. On a lagoon-side home in the Dolphin Bay neighborhood, our crew found the original aluminum sliding patio door had corroded so badly along the jamb that the sash wouldn’t seat, and the frame had racked nearly half an inch out of square from decades of fill settlement. We squared the rough opening, installed a Milgard impact-rated sliding glass door with stainless steel rollers, and re-flashed the entire perimeter before the new jamb extensions went in. That’s the standard approach on every Foster City door job. Call (888) 635-0804 if your doors bind; we’ll tell you why.
Yes, in most cases. The fog between the panes on original 1970s and 1980s single-pane units is a failed seal, not something you can clean. Impact-rated dual-pane units with low-E coatings reduce surface condensation because the interior glass stays warmer, and the insulated cavity resists the kind of seal failure that causes fog. In Foster City’s nearly year-round marine layer, this makes a visible difference within the first fog season. For an exact quote on your openings, call (888) 635-0804.
Yes. Foster City building code requires permits for window and door replacement, and when walls are opened, the inspector applies current code to what’s exposed. That often means upgrading electrical wiring that’s now accessible, correcting undersized headers, and bringing waterproofing up to current standards. We handle the permit, schedule the inspection, and price any code-triggered upgrade in writing before we do the work. We don’t open a wall and then hand you a surprise. Call (888) 635-0804 to schedule a walkthrough and get a permit-ready estimate.
Get a Straight Answer From a Foster City Installer
If your Foster City home still has original windows and doors from the 1970s or 1980s, you already know something’s wrong. Maybe the sliders bind. Maybe the glass fogs. Maybe the frames are pitted and the doors don’t close square anymore. You want to know what it costs to fix properly, and you want the number to hold. That’s a fair thing to ask. Call (888) 635-0804 for a free estimate. We’ll walk the house, open what needs opening, and put the real cost in writing. Done right, in writing, and we’ll stand behind it.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Foster City and the surrounding Peninsula communities.