Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
PGT Construction in Los Altos, CA | Daly City Construction
We install, retrofit, and repair PGT windows and doors across Los Altos, including the 94022, 94023, and 94024 ZIP codes. What makes our PGT work here different is that we plan every job around two things at once: the tree-protection ordinance that dictates where we can stage materials, and the settle-and-shift of 1950s rancher framing that determines whether your rough opening is still square. We’re an independent contractor, not a factory dealer, which means we spec the right PGT line for the actual opening rather than pushing whatever’s in stock. Call (866) 505-5254 to schedule a free estimate.
Why Los Altos Residents Choose Us for PGT Service
We’ve spent years installing, retrofitting, and correcting PGT vinyl, aluminum, and impact-rated units across the Peninsula and South Bay, including PGT service in Los Altos Hills. The difference in Los Altos is that we’re not managing a factory sales quota. Our job is to look at your existing PGT units, measure the actual condition of the frame and rough opening, and tell you whether a repair makes sense or the unit needs to come out. Noel Cabrera runs our jobs the same way he learned the trade: look at the house first, then decide what it needs. You won’t get a pitch for replacement windows when the problem is a failed corner seal and a $40 weatherstrip. But if the sash is distorted and the glazing seal is gone, we’ll tell you straight that patching isn’t going to hold another Los Altos summer. We stock PGT OEM components locally, which keeps turnaround tight for the 94022 and 94024 pockets of town.
Styles & brands we work with
Common PGT Construction Problems We Solve in Los Altos
- Vinyl sash distortion on south- and west-facing walls. Los Altos summers are long and dry, and older PGT vinyl units on those exposures cook until the sash corners gap and the weather seal fails. That’s a thermal problem with the frame, not a glass defect, and the fix is usually a replacement sash rather than the whole window.
- Failed perimeter sealant and flashing on stucco-wrapped retrofits. A lot of PGT retrofits in Los Altos were originally set with caulk alone at the rough opening. A decade of dry-season UV shrinkage opens a path for wind-driven winter rain. We cut out the old sealant, re-flash the opening, and reset the unit so water stays outside.
- Fogged double-pane assemblies on tree-shaded or WUI-adjacent units. The dry-then-wet cycle the town gets, especially near the foothills and creeks, is hard on IGUs. A hazy PGT unit means the argon fill has leaked and the low-E coating is compromised. We can swap glass on serviceable frames or replace the sash if the frame is still plumb.
- Sagging sliding door panels and worn rollers. The single-story ranchers in Los Altos were built on wood framing that’s been moving slightly for sixty or seventy years. A PGT sliding door may have been perfectly square when installed, but the opening has since crept. We re-shim the frame, replace rollers and tracks, and get the door sliding without dragging the head jamb.
- Impact-unit retrofits that were never properly tied to the shear wall. On some Los Altos remodels where the original single-pane aluminum got swapped for PGT WinGuard, the installer lagged the flange to trim, not to the studs. That’s a structural weak point, not a cosmetic one, and we’ve corrected it on multiple jobs near University Avenue.
PGT Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s the part a generic PGT page won’t tell you. Los Altos’s tree-preservation ordinance means a remodel or addition that touches a heritage redwood or valley oak on the lot often needs an arborist report and root-zone protection fencing before anything is permitted. So on a Los Altos Home Remodeling project with PGT windows, the tree-protection plan and the staging area for our units are drawn together, not separately. That root-zone fencing frequently knocks out the side yard a delivery truck used to use, so we stage PGT units on the driveway or street and hand-carry them to the openings. On a 1950s rancher off University Avenue in the 94022 ZIP, a gut-remodel to a two-story custom build left us replacing original single-pane aluminum sliders with PGT WinGuard impact units, but a protected oak in the side yard meant root-zone fencing blocked the normal delivery route. We carried every unit in by hand. Two existing rough openings were out of square after the addition’s framing work, and we had to shim and re-flash them before setting frames, since the old stucco underlayment was no longer a reliable drainage plane. The result was a weathertight, impact-rated envelope that passed inspection without touching the tree’s protected root zone. If you live near Los Altos’s mature oaks or redwoods, this is the constraint shaping your window job whether you know it yet or not.
PGT Models & Products We Service in Los Altos
We work on the full PGT residential catalog that shows up in Los Altos homes. That includes PGT WinGuard aluminum impact windows and sliding glass doors, PGT WinGuard Vinyl impact-rated units, the EnergyVue vinyl single-hung and slider lines, and PGT aluminum series sliding doors and fixed-lite configurations. For parts, we use PGT OEM replacement sashes, seals, hardware, and glass where the unit is still serviceable. We use quality aftermarket rollers and weather-seal components only for the small hardware details where OEM equivalents don’t exist. Our default is repair over replace on a structural frame that’s still plumb and dry. We recommend a full PGT unit swap only when the frame is distorted, the rough opening itself is compromised, or the glazing seal has failed beyond patching. For more on our PGT scope across the region, see our PGT sales & service page.
See the difference
Before
After
Before
After
Before
AfterPGT Service Pricing in Los Altos
PGT work in Los Altos falls into three realistic buckets depending on scope. A window replacement runs $4,500 to $15,000. Impact window installation, where we’re setting WinGuard-rated units and tying them to the shear wall properly, runs $8,000 to $25,000. A home addition that includes PGT fenestration and the framing, permitting, and staging work that goes with it runs $45,000 to $130,000. What changes the number most is the condition of the rough opening. A plumb, dry opening keeps the job simple. An out-of-square 1950s frame that needs shimming, re-flashing, and possible header work adds labor but it’s labor your house actually needs. Your free estimate includes a frame inspection and a written line-item quote. Call (866) 505-5254 to have us take a look.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
Serving Los Altos, CA — Our Local Coverage Area
We’re a Los Altos General Contractor based in the 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 – PGT Construction in Los Altos
Yes, and more often than homeowners expect. If a heritage redwood or valley oak sits near the side yard or close to the wall we’re working on, the city can require an arborist report and root-zone protection fencing before work starts. That fencing changes where we stage PGT units and how we carry them to the openings. We plan the tree-protection and the staging as one piece, not two. Call (866) 505-5254 and we’ll walk you through what your lot is likely to trigger.
Impact windows resist wind-borne debris and forced entry. They are not automatically a wildfire-urban-interface fire-hardening product. WUI requirements center on ember resistance, tempered glass, and non-combustible framing details. Some PGT WinGuard units can support WUI hardening when combined with the right frame and vent specifications, but you shouldn’t assume an impact label satisfies a fire-hardening inspection. We’ll tell you exactly what your specific Los Altos parcel requires and whether the PGT line you’ve chosen overlaps with it.
If the frame is still plumb and the tracks aren’t sagging, we can usually replace the IGU or the sash rather than the whole door. Fogging means the perimeter glazing seal has failed and the argon fill is gone. That’s a glass assembly problem, not necessarily a frame problem. But if the door panel itself has sagged from a shifted rough opening, patching the glass won’t fix the underlying movement. We’ll take measurements on-site and give you the repair-versus-replace answer straight. Call (866) 505-5254 to schedule an inspection.
Most like-for-like window replacements in Los Altos fall under straightforward over-the-counter permits, assuming your project doesn’t touch heritage trees or expand the building envelope. If you’re doing a larger addition or a second-story build along with the windows, the design-review process applies and the timeline stretches. We’ve pulled permits across 94022, 94023, and 94024 enough to know which path your project takes and how to keep the window package from becoming the bottleneck. Call (866) 505-5254 for an exact quote, and we’ll talk you through the permit route as part of the estimate.
We’re not a PGT dealer and we’re not factory-authorized. We’re an independent window and door contractor. That’s deliberate. Because we’re not tied to any factory sales program, we spec the right PGT line for the opening, or tell you when a repair makes more sense than a replacement, and we stand behind the workmanship that keeps the frame plumb and watertight. Manufacturer warranty claims still route through PGT where they apply. Our workmanship is what keeps the unit installed correctly in the first place.
Service Areas Near Los Altos
We serve Los Altos and the surrounding South Bay and Peninsula area. Nearby work takes us into Mountain View for a lot of the same rancher-era framing issues, hence our dedicated PGT service in Mountain View page, and up toward the Loyola corridor where the lots run larger, hence our PGT service in Loyola page. We also cover Daly City, Broadmoor, Colma, Visitacion Valley, Noe Valley, and Brisbane for PGT window and door work. For a full look at where we operate, see our Los Altos service area page.
Book Your PGT Service in Los Altos Today
If you live in Los Altos and your PGT windows or doors need attention, call us at (866) 505-5254. We’ll schedule a free estimate, measure your openings, and give you a straight answer on repair versus replacement. Noel Cabrera runs the job the same way he’d want it run on his own house.
Written by Noel Cabrera, Owner at Daly City Construction, serving Los Altos and the greater Peninsula.