Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Windows & Doors Across Hillsborough
Window and door replacement in Hillsborough runs $4,500 to $25,000 depending on scope, and the single biggest cost driver isn’t labor or glass. It’s the Town of Hillsborough’s Architectural Review Board, which reviews every exterior opening change before you pull a building permit. A crew that doesn’t plan for ARB design review, architect-stamped drawings, and the Town’s zero-commercial zoning will hand you a surprise delay and a change order. We’ve done this work on Hillsborough hillsides for long enough to know the approval layer comes first, not last. Call (877) 610-1318 for a free estimate on your project.
Why Barrett & Sons Construction Is Hillsborough’s Preferred Windows & Doors Company
Tom Barrett founded this company in 1998, and his sons run the crews. That matters in Hillsborough, because the Hillsborough permitting process doesn’t reward contractors who send a different face every visit. It rewards people who know the ARB reviewers, who have walked the upper hillside roads off Crystal Springs, and who can tell you before the first window comes out whether your plan will clear design review. Our Windows & Doors team includes crew members who have installed custom units in 94010 estates for years, not weeks.
We answer the phone 24 hours a day, seven days a week. Not a voicemail box, not an out-of-state call center. When a Hillsborough homeowner calls about a racked French door on a heaving cripple-wall foundation, the person who answers understands what that means. Tom publishes his name, address, and license number. You can look him up before you sign anything. And every contract carries the 90-Day Done Right Promise in writing: if it isn’t done right, one call brings Tom back.
Our Windows & Doors Services in Hillsborough
Window Replacement
Most window replacements in Hillsborough happen on homes built between the 1910s and 1960s, which means original wood framing, thick plaster walls, and often some amount of water damage hiding behind the sill. We don’t just swap sashes. We inspect the rough opening, pull out rotted or termite-damaged framing, and reframe to current code before the new unit goes in. In Hillsborough, window replacement typically runs $4,500 to $15,000, and the ARB submittal is part of our scope, not an afterthought.
Impact Windows & Doors
Hillsborough sits near the San Andreas Fault along the western ridgeline, so lateral bracing and impact-rated glazing are recurring requirements, not optional upgrades. Impact window installation in Hillsborough generally runs $8,000 to $25,000. The expense isn’t just the laminated glass. It’s the shear panels we tie into the jambs, the heavier headers, and the engineering that tells the Town’s building department the opening will hold when the ground moves. We pull permits on every eligible job and the inspector signs off before we call it done.
Custom Windows & Doors
The ARB’s design standards for material authenticity are among the strictest in San Mateo County. That means a 1920s Spanish Colonial Revival on a multi-acre lot rarely gets a stock vinyl window approved. Custom windows and doors in Hillsborough typically cost $6,000 to $20,000, depending on species, divided-light patterns, and hardware. We’ve matched original Douglas fir units, replicated divided-light muntins, and coordinated with the architect of record on submittal drawings. If the Town requires a specific glazing profile or stile width, we build to that standard and put it in writing.
Door Installation
Door installation on a Hillsborough hillside comes with its own set of problems. Expansive Bay Area clay moves. A sixty-year-old post-and-pier foundation heaves a quarter-inch in a wet winter, and suddenly the new door binds at the latch. Before we hang a door in 94010, we check the header, the cripple walls, and the sill pan flashing. Water intrusion at the uphill elevation is a known failure mode here. We flash to the drainage plane, not just the rough opening, and we verify the threshold slopes away from the interior before the trim goes on.
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 Hillsborough
We carry Andersen and Marvin window lines, and we stock common replacement hardware and weatherstripping for Hillsborough homeowners who need a component repaired without waiting on a freight shipment. Our roofing division installs GAF membranes, and that crossover matters when a window leak up-slope is actually a roof flashing failure feeding water into the wall cavity. When we see a failed sill pan on an uphill elevation, we don’t just caulk it. We trace the water path. For Hillsborough customers, that diagnostic step is the difference between a replacement that lasts and one that leaks again next winter.
Common Windows & Doors Problems We See in Hillsborough Homes
- Water intrusion at the uphill sill pan. Hillsborough’s winter sheet flow on clay soil drives moisture behind non-flashed replacement windows within a single rainy season. We flash every opening to the drainage plane, not just the frame.
- Racked French door units on heaving foundations. The original 1960s cripple-wall foundations under many Hillsborough estates move with the expansive soil, and a new door can bind within months. We tie new units into shear panels before the finish work starts.
- ARB rejection of replacement muntin profiles. The Town reviews divided-light patterns against the original architectural character of the home. If the replacement doesn’t match what was there in 1927, the review stalls. We plan for that on day one, not after rough-in.
- Failed headers over large picture windows. Older estates often have undersized headers by modern code, especially where a previous owner widened an opening. We reframe load-bearing headers and document the work for the inspector.
Pricing for Windows & Doors in Hillsborough, CA
Here’s what realistic line items look like in the 94010 market:
| Scope | Typical Hillsborough Range |
|---|---|
| Window Replacement | $4,500 - $15,000 |
| Impact Window Installation | $8,000 - $25,000 |
| Custom Windows & Doors | $6,000 - $20,000 |
The spread reflects scope, not vague estimating. A single double-hung replacement on a flat first-floor wall costs far less than a bank of custom divided-light windows on an uphill elevation with reframed headers. ARB submittal, architect-stamped drawings where required, and any seismic upgrade triggered by the opening size all move the number. Every allowance and every scope change arrives as a written change order before work happens. Call (877) 610-1318 for a free estimate with a written line-item quote.
We Also Serve Cities Near Hillsborough
Our crews regularly work in Burlingame, Millbrae, San Mateo, and San Bruno. The Hillsborough ARB layer and hillside drainage conditions are unique to 94010, but the same Building Code and the same Tom Barrett answer every job we take in the surrounding Peninsula communities. Call the same number, get the same people.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 Hillsborough
Yes. Hillsborough requires Town-level Architectural Review Board approval for exterior changes to windows and doors, an extra layer that neighboring cities don’t impose. The review covers materials, muntin profiles, and consistency with the original architectural character. Plan for ARB submittal time before your contractor schedules the install, and make sure the scope includes it in writing. Call (877) 610-1318 to talk through your project timeline.
Possibly, if the work is near a mature heritage oak protected by the Town’s tree ordinance. Hillsborough requires a certified arborist report before grading or root disturbance near protected trees in many cases. We walk the site before any submittal and tell you if tree work triggers the report. Call us at (877) 610-1318 for a free estimate that includes a site walk.
We treat the opening as a lateral load path problem, not just a glazing swap. That means checking the cripple walls, installing plywood shear panels at the jambs, and reframing the header to current code before the new window goes in. The inspector verifies the work before sign-off. Our Windows & Doors crew has done this on upper hillside homes where the San Andreas Fault sets the engineering bar.
You get a written change order before we touch it. That’s the Barrett & Sons rule: any scope change is priced and approved in writing before work proceeds. The allowance that isn’t on paper is a surprise waiting for a date. We don’t bury discovery work in the final invoice. Call (877) 610-1318 for an estimate that accounts for what older Hillsborough walls usually contain.
Yes. We’ve replicated original divided-light patterns on Spanish Colonial Revival estates, including matching the profile and width of 1920s-era muntins in custom Douglas fir. If the ARB requires a specific pattern, we build to it and submit the drawings with the application so review doesn’t stall at the rough-in stage. Call (877) 610-1318 and ask for Tom. He’ll tell you straight what the ARB will likely accept.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Hillsborough since 1998.