Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across Sunnyvale
If your Sunnyvale home still has its original single-pane aluminum windows from the 50s or 60s, you’re not alone. Thousands of ranch houses built during the Lockheed aerospace boom went up fast with whatever materials were cheapest, and those windows have been leaking conditioned air for sixty years. In Sunnyvale’s 94086 and 94087 ZIPs especially, we walk into homes where the glass rattles when Moffett traffic rumbles past and the frames have corroded where morning fog settled for decades. That’s the work we do. Call (877) 610-1318 and Tom’s team will come take a look, walk you through the options, and write everything down before a single window comes out. We’ve been doing this since 1998, owner-operated the whole time, and Sunnyvale is one of the places we know best.
Why Barrett & Sons Construction Is Sunnyvale’s Preferred Windows & Doors Company
We’re not a franchise dispatching strangers in a branded van. Tom Barrett lives twenty minutes from most Sunnyvale neighborhoods, and his sons run the crews. When you call our office, a live person answers, 24 hours a day. When you sign a contract, Tom’s name is on it, along with his license number, which he invites you to look up before you commit. That’s the kind of transparency Sunnyvale homeowners tell us they were missing from the last contractor they hired.
Most of our Windows & Doors work in Sunnyvale comes from referrals. A homeowner on Ponderosa Avenue gets new windows. Their neighbor on Remington Drive sees the crew, sees the trailer, asks a few questions. Next month we’re back on the same street. That’s how it’s gone since 1998, and it’s why we don’t need to advertise with vague promises. The 90-Day Done Right Promise is written on every contract. If something isn’t right, one call brings Tom back. No phone trees, no “we’ll submit a ticket.”
We also understand how Sunnyvale’s building department works. Permits get pulled on every eligible job. Inspections get signed. We deal with the Title 24 energy requirements and the seismic details that older Sunnyvale ranch homes were never built to meet. The permit inspector works for you, not for me. That’s why I like him.
Our Windows & Doors Services in Sunnyvale
Window Installation
New window installation in Sunnyvale almost always means retrofitting into existing openings on slab-built ranch homes. We handle the full scope: removing old frames carefully, flashing correctly, insulating the gaps those 1950s builders never filled, and setting the new units square and plumb. For homes in 94089 near Moffett airspace, we also check for any height-related constraints that affect second-story window work. Every installation gets written scope and a written quote before work starts.

Door Installation
Front doors, back doors, side entries, garage-to-house doors. Sunnyvale’s mid-century homes often have doors that have warped or settled along with the expansive clay soils toward the bay, particularly in 94089. That means a door that once latched cleanly now catches, and shimming a new door correctly takes patience and experience. We install pre-hung doors, slab doors on existing frames, and exterior doors with proper weatherstripping for our hot summer days and damp winter mornings.

Window Replacement
Window replacement in Sunnyvale typically runs $4,500-$15,000 depending on how many openings and what style of window you’re replacing. Most post-war ranch homes have between eight and fourteen windows, and the originals are single-pane aluminum sliders. Replacing them with dual-pane, low-E units qualifies you for energy savings that make a real difference during Santa Clara Valley heat waves. We also check for asbestos in old caulking, glazing, or surrounding materials before we disturb anything. In older Sunnyvale homes, that’s not a maybe. It’s a when.

Impact Windows & Doors
Impact windows aren’t just for hurricane country. Many Sunnyvale homeowners choose impact-rated glass for wildfire season smoke resistance, noise reduction along El Camino Real and Highway 85, and the simple fact that laminated glass doesn’t shatter into your living room. Impact window installation in Sunnyvale typically runs $8,000-$25,000 depending on the number of openings. If you’re in a zone near the bay or along the 237 corridor where wind and road noise are constant, this option is worth a serious look. We also handle impact sliding glass doors for patio access.

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 Sunnyvale
We install Andersen and Marvin windows and doors because those are brands you can look up. Not mystery units off a van. When a Sunnyvale customer calls about a sticking Andersen sash or a Marvin door that needs an adjustment, we can usually get parts without a two-week wait, and we handle the service call directly. We also work with a range of sliding and patio door hardware. If you’re planning a backyard project alongside your windows and doors, we also handle Fence Installation in Sunnyvale and Driveway & Pavers in Sunnyvale, so you don’t need three different contractors for what could be one coordinated scope.
Common Windows & Doors Problems We See in Sunnyvale Homes
- Corroded aluminum frames from ocean-influenced fog. Sunnyvale sits where Pacific marine air rolls over the Santa Cruz Mountains. Decades of morning damp settle into old aluminum frames, causing pitting and failed seals. We see this more in 94086 and 94087, away from the bay breezes that dry things out faster.
- Sticking doors from expansive clay soil movement. Homes in 94089 and lower-lying Sunnyvale neighborhoods sit on clay that swells in winter and shrinks in summer. Door frames shift. A door that swings fine in June may scrape the jamb in February. We relevel and re-shim doors to account for this movement.
- Fogged dual-pane glass from failed seals. If your bedroom window looks permanently frosted, the seal has failed and moisture got between the panes. We replace the glass unit or the full window, depending on the condition of the frame. This one isn’t a DIY fix. Fogged glass means lost insulation and higher bills.
- Worn weatherstripping and drafty patio sliders. Original sliders from the 1960s don’t seal the way modern ones do. In winter, you feel cold air rolling off the glass. In summer, your AC fights hot air seeping in. New rollers, new seals, or a full slider replacement fixes this, and we quote it all in writing before starting.
Pricing for Windows & Doors in Sunnyvale, CA
Window replacement in Sunnyvale runs $4,500-$15,000 for a full-home scope on a typical ranch. Impact window installation runs $8,000-$25,000. Entry door installation typically runs $800-$3,000 installed, and sliding patio doors run $1,500-$5,000 depending on size and glass. Those are real ranges based on what we’ve actually bid in Sunnyvale recently, not national averages. What moves the number is the size of your house, how many openings, what condition the rough framing is in, and whether original materials need abatement. We give you a written, line-item quote before any work starts. Call (877) 610-1318 for your free estimate.
We Also Serve Cities Near Sunnyvale
Our crews handle windows and doors from Mountain View down to Santa Clara, over to Cupertino, and up through Los Altos. If you’re in one of those cities and you need the same level of written-scope, permit-pulled, brand-name work, call the same number. Windows & Doors in Sunnyvale is our home base for this part of the Bay Area.
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 - Windows & Doors in Sunnyvale
We can typically reach most Sunnyvale neighborhoods within a day or two for an estimate, and emergency board-up or broken glass work gets prioritized. Call (877) 610-1318 and a live person answers, not a voicemail box. We’ll get you on the schedule and give you a real arrival window, not a vague “sometime this week.”
Yes. We work in 94089, 94085, 94086, and 94087, including neighborhoods around Ponderosa Park, Cherry Chase, Raynor, and the residential streets near Braly Park. If you’re in Sunnyvale, you’re covered. Estimates are free, and there’s no trip charge inside the county.
Yes. A broken window is an immediate security and weather issue, so we prioritize these calls. Plywood and other high-tension situations can make flying glass unpredictable, so leave the broken pane alone and call us. We’ll get someone out, secure the opening, and order the replacement glass. Call (877) 610-1318 for emergency window service in Sunnyvale.
Not meaningfully. Our pricing for Sunnyvale runs the same as Cupertino, Mountain View, and Santa Clara because we’re bidding the same materials, the same labor rates, and the same permit requirements. What raises a Sunnyvale bid is specific to the house: asbestos abatement in older glazing, seismic retrofitting, or airspace height constraints near Moffett. Those are Sunnyvale realities, not price inflation. Get a written quote and compare.
Every job carries the 90-Day Done Right Promise in writing, plus the manufacturer’s warranty on the units we install. If something isn’t right within that window, Tom comes back and fixes it with one call. We also honor the manufacturer’s warranty process for defects. Call (877) 610-1318 if you have questions about a past or future install.
Call Barrett & Sons Construction for Windows & Doors in Sunnyvale
You’ve lived with those drafty, fogged, stuck windows long enough. We’ll give you a written quote, show you exactly what we’re installing, pull the permits, and stand behind every bit of it. Ask anyone on your street, or look up the license number yourself. Then call (877) 610-1318 to schedule your free estimate. Mention you’re a Sunnyvale resident and ask about our Senior & Veteran discount. No pressure, no games, just a fair number on paper.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Sunnyvale and the South Bay since 1998.







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