Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
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AfterWindows & Doors Services in Sunnyvale, CA
Window and door problems in Sunnyvale rarely announce themselves politely. You notice the slider sticking on a summer afternoon, or the bedroom feels warm even with the air conditioning running. Most houses in Sunnyvale were built between the late 1940s and the mid-1970s, and many still carry their original aluminum-frame, single-pane windows. Those windows have been fighting salt air from the South Bay for fifty years. We serve Sunnyvale residents from our San Francisco Bay Area office, and a live person answers our phone at (888) 635-0804 any hour of the day or night.
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 Sunnyvale Homeowners Choose TruePane Windows & Doors
Dale Kessler founded TruePane in 2008 on a rule that still sits on the whiteboard in our shop: if the pane is not true, the job is not done. That’s not a slogan. It governs every install we set in Sunnyvale, from a single patio-door roller replacement in the Washington Park neighborhood to a full-house window package over near the Sunnyvale Baylands. Homeowners in those areas have told us the same thing for years: they want a company that answers the phone when a fogged seal fails two years after the install. That’s us. Live person, 24/7, not a voicemail tree.
We background-check every technician, send uniformed crews on every job, and register both warranty layers in writing before the truck leaves your driveway. That practice has a name: the Keystone Standard. If something isn’t right, the Done Right Promise means we make it right without paperwork fights.
Windows & Doors Services We Offer in Sunnyvale
Window Installation
We set new windows square and plumb in rough openings of every era, which matters in Sunnyvale where ranch homes and tech-era additions sit side by side. We measure every opening twice and quote manufacturer lines side by side on paper before you decide. Learn more about our Window Installation in Sunnyvale.
Door Installation
Entry doors, patio doors, and custom openings all get the same treatment: level jambs, solid thresholds, and hardware that won’t corrode from the marine layer. A door that binds in July is a door someone did not set right, and we fix that. Learn more about our Door Installation in Sunnyvale.
Window Replacement
Replacing original aluminum sliders with dual-pane, low-E glass is the single best upgrade for comfort and energy cost in Sunnyvale’s older housing stock. We remove the old frame completely and inspect the rough opening for hidden rot below the sill, which we find more often than homeowners expect. Learn more about our Window Replacement in Sunnyvale.
Impact Windows & Doors
Impact Windows & Doors in Sunnyvale from PGT and CGI are engineered to take a flying branch or worse. The engineer who specs them cares about the glass package; the homeowner in Sunnyvale cares that the hardware won’t corrode. We address both in the same conversation.
Energy-Efficient Windows
California Title 24 means permitted remodels in Sunnyvale automatically trigger mandatory Energy-Efficient Windows in Sunnyvale with dual-pane, low-E upgrades. We understand what the code requires, what the inspector looks for, and what actually lowers your PG&E bill. No guesswork, no rework after the inspection.
Sliding & Patio Doors
Worn pile seals and roller assemblies are the two most common Sliding & Patio Doors - Sunnyvale failures. We replace full door units or rebuild tracks and hardware, depending on what the frame can actually support. The fix should last, not just hold for one season.
Glass Railing Systems
Glass Railing Systems - Sunnyvale, frameless and semi-frameless, for decks, balconies, and stairways. We set rails that meet code, drain water, and stay clear of the salt haze that eats cheap hardware. If the glass is not true, the job is not done.
Custom Windows & Doors
Odd rough openings, curved glass, oversized sliders, architectural shapes. We measure, fabricate, and set custom units in openings that standard sizes never fit. Sunnyvale’s tech-era renovations reposition openings frequently, and that work requires real framing skill. We do it.
Neighborhoods We Serve in Sunnyvale
We know Sunnyvale by the neighborhoods, not just the street names. Our crews regularly set windows and doors in the postwar tracts around Washington Park, Cumberland South, Lakewood Village, and the older residential pockets near the Caltrain corridor in 94085. Wherever you live in Sunnyvale, we can usually have a technician out within one business day of your call, often sooner.
- Washington Park
- Lakewood Village
- Cumberland South
- Near the Sunnyvale Baylands
- Caltrain corridor in 94085
Why Sunnyvale’s Climate & Housing Affect Windows & Doors
Sunnyvale’s postwar tract neighborhoods, built heavily between 1950 and 1975, are packed with original single-pane aluminum slider windows. That aluminum is oxidizing and pitting from salt-laden marine air drifting off the adjacent South San Francisco Bay shoreline. This corrosion pressure is noticeably more acute here than in inland Valley cities like Cupertino or Los Altos. Aluminum that has pitted will not hold a seal, no matter how carefully you re-glaze it. Add the fact that summer afternoon delta breezes push through worn slider seals and rattle old door hardware, and you have a predictable cycle of comfort complaints that tracks the Bay breeze more than the calendar. We see it every season in Sunnyvale, and our recommendations start with what will actually last in this air, not what would work in a dry inland climate.
There’s another layer to this. In the older residential pockets near the Caltrain corridor in 94085, decades of marine-layer condensation have blocked the weep holes on mid-century aluminum sliding windows with oxidation debris. Water then pools inside the frame sill and silently rots the wood rough opening below. That hidden structural failure consistently surprises homeowners who called about what they thought was a simple re-glaze. By the time you see the staining on the interior wall, the rough opening has been wet for years. We pull the frame, inspect the sill, and tell you honestly whether you need a full frame-and-sill replacement or just a new sash. No contractor in Sunnyvale should quote a window without checking for this.
Pricing for Windows & Doors in Sunnyvale
You deserve numbers, not vague estimates. Here’s what you can expect on a typical Sunnyvale project:
- Window replacement, full frame, dual-pane low-E: $850 to $2,100 per window, depending on size, material, and whether the rough opening needs sill repair.
- New entry door, mid-grade pre-hung: $1,900 to $4,500 installed, depending on material and hardware.
- Sliding patio door full replacement: $2,700 to $5,500, with wider variations for custom openings.
- Glass railing systems: $300 to $700 per linear foot, depending on glass thickness and hardware finish.
- Impact-rated windows (PGT, CGI, CWS, ES Windows): typically add 25 to 50 percent over standard dual-pane, depending on the product line and opening size.
Every quote we write is line-item. The price on the estimate is the price on the bill. If the work uncovers a hidden problem, we discuss it with you before we touch another board. Call (888) 635-0804 for a free estimate and a written quote on paper. And remember: a square deal means no surprises.
Service Area - Cities Near Sunnyvale
TruePane serves Sunnyvale and the surrounding cities of Mountain View, Santa Clara, Cupertino, and Los Altos. If you’re a few miles from us, call anyway. We schedule crews across the South Bay and will let you know honestly if your project falls outside our range.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
Window replacement in Sunnyvale typically runs $850 to $2,100 per window for full-frame, dual-pane low-E work. The range depends on window size, frame material, whether the rough opening needs sill repair, and what kind of glass package Title 24 requires for your specific remodel. Call (888) 635-0804 for an exact quote. Estimates are free and written on paper.
Aluminum windows in Sunnyvale corrode faster than inland because persistent marine-layer air off the South Bay carries trace salt that accelerates oxidation on bare aluminum frames and window hardware. Lower-elevation neighborhoods near the Sunnyvale Baylands see this worst. Once the aluminum is pitted, re-sealing won’t help. Replacement with a non-corrosive frame material, usually vinyl or fiberglass, is the durable fix.
We pull permits whenever Sunnyvale building code requires them, and we understand California Title 24 energy-compliance rules that affect dual-pane, low-E glass requirements on any permitted remodel. When an inspection is required, we pass it. That’s part of a square deal: work done to code, no shortcuts.
It depends on the condition of the frame and sill below it. If the frame is square and the aluminum has not pitted or lost its weep holes, a glass-only replacement is often possible. In the Caltrain corridor pockets of 94085, we frequently find hidden rot in the rough opening that makes full frame-and-sill replacement the honest recommendation. We’ll show you what we see, not quote a fix that won’t hold.
No. The price on your written estimate is the price you pay, unless we uncover a hidden condition that changes the scope, like a rotted rough opening or badly off-square framing. If that happens, we stop, show you the problem, discuss the options, and get your approval before any change. No change orders slide onto your bill at the end.
Call TruePane Windows & Doors in Sunnyvale
If you’re a Sunnyvale homeowner with a window that fogs, a door that binds, or a renovation that needs custom openings done right, call us. A live person answers at (888) 635-0804, day or night. We’ll schedule a free estimate, measure every opening twice, and give you a line-item quote on paper. If the pane is not true, the job is not done. That’s the standard we hold ourselves to, on every job, in every house, all over Sunnyvale.
Written by Dale Kessler, Owner at TruePane Windows & Doors.
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 Sunnyvale Customers Say
"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."Whole-house window replacement at 71 years old is not something you want to do twice. Dale walked the house himself for the quote. Crew was the same three men all four days, and the foreman knew every window by room."
- Pat and Ray L."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.