Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across Fairfax
Windows and doors in Fairfax carry a heavier load than most homeowners realize. The town sits in a narrow inland valley where fog off the coast rolls through every evening, wood rot settles into frames and jambs within a few seasons, and summer fire warnings put every exterior opening under the microscope. If you’re noticing drafts, sticking doors, warped sills, or windows that rattle in the wind off the ridge, it’s not cosmetic. In Fairfax, a failing window or door is a moisture problem, an energy problem, and increasingly a fire-hardening compliance problem all at once.
Barrett & Sons Construction has been handling Windows & Doors across Fairfax long enough to know which bungalows on the hillside off Bolinas Road need hand-carrying and which ranch homes near Deer Park still have original 1950s single-pane frames waiting to fail. We answer our own phone. Call (877) 610-1318 and you’ll get a real person, not a call center.
Why Barrett & Sons Construction Is Fairfax’s Preferred Windows & Doors Company
Tom Barrett started this company in 1998, and the name on the truck is the same one you’ll see at the lumber yard in San Anselmo or the hardware store up in San Rafael. His sons run the crews. That matters in a small town like Fairfax, where your contractor’s reputation lives or dies by one street’s word of mouth. We publish our license number and our address. Look them up before you sign anything.
Fairfax homeowners tell us the same story over and over: a national company quoted one number over the phone, sent a salesman with a tablet, and the final bill looked nothing like the first one. We operate differently. Every scope is in writing. Every price change arrives as a written change order before any work moves forward. The allowance that isn’t on paper is a surprise waiting for a date. That’s not a policy. It’s how we’ve worked for 29 years.
We also understand what Fairfax’s location demands. A window replacement in the flatlands of San Rafael is a straightforward swap. In Fairfax, the same replacement might trigger CAL FIRE defensible-space compliance review, require ember-resistant vent retrofits, and need materials staged from a narrow hillside street with no room for a flatbed. We plan for that before we give you a number. That’s the difference between a bid that holds up and one that falls apart.
Every completed job carries the 90-Day Done Right Promise, written on the contract. If something isn’t right, Tom comes back and makes it right. One call.
Our Windows & Doors Services in Fairfax
Window Installation
New windows in Fairfax have to do more than look good from the street. They need to seal against fog-soaked winters, hold up under June heat on the ridge, and meet Marin County’s fire-hardening standards when your home sits in the wildland-urban interface. We install Andersen and Marvin frames almost daily across Fairfax, from the craftsman bungalows near Peri Park to the mid-century ranches up past Deer Park School. Every opening gets checked for square, flashed correctly, and insulated before trim goes back on.

Door Installation
A front door in Fairfax takes direct weather. West-facing entrances catch the afternoon sun and the evening marine layer. Wood doors swell and stick. Thresholds rot. We replace and install exterior and interior doors with the same care we’d give our own homes, because most of us live within twenty minutes of the customers we serve. If a door isn’t hung right the first time, we hear about it at the grocery store.

Window Replacement
Most replacement work in Fairfax involves pulling out original single-pane windows from 1920s to 1960s homes and replacing them with energy-efficient dual-pane units that actually close. On hillside lots near Fairfax Creek, we routinely find concealed rot where old flashing failed and moisture sat for years. We cut that out rather than hide it, then build back with pressure-treated stock and proper drainage. You’ll know exactly what we found and exactly what it costs to fix before we proceed.

Impact Windows & Doors
Fairfax sits entirely within a Very High Fire Hazard Severity Zone. That’s not a county designation to ignore. Impact-rated windows and doors, paired with ember-resistant vents, move your home closer to the defensible-space standard CAL FIRE expects when inspectors come through. We install impact windows and impact sliding glass doors that protect against wind, debris, and the radiant heat that precedes a fire front. If you’re replacing windows anyway, upgrading to impact-rated glass is a decision most local homeowners wish they’d made before the next evacuation warning.

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 Fairfax
We carry products you can look up, not mystery brands pulled from the back of a van. On window jobs across Fairfax, we install Andersen and Marvin. When the project calls for it, we also work with premium material lines like Techo-Bloc and Cambridge Pavers on the hardscape side. The point is consistency: our crews install the same named brands in Fairfax that we’d put in our own homes, and we stock common parts and hardware locally so warranty work and service calls don’t wait on a warehouse two states away.
Common Windows & Doors Problems We See in Fairfax Homes
- Fog-driven rot around window sills and door jambs. The marine layer that rolls through the valley every afternoon keeps wood damp for hours. Older wood-frame houses absorb that moisture, and the first place it shows is the bottom corner of a window frame or the threshold of a side door.
- Fire-hardening retrofits triggered by window or door permits. Because Fairfax sits in a VHFHSZ, a simple window replacement permit often triggers a review of ember-resistant vents, siding, and eave construction. We’ve seen homeowners come in for two windows and walk out needing a full defensible-space retrofit before the permit is signed.
- Unpermitted additions with original 1970s windows. Hillside lots along Ridgeway and Scenic Road hold a lot of legacy additions built without permits. When the county flags one, the window and door package on that structure often has to come up to current fire and energy code before anything else moves.
- Sticking doors from hillside settlement. Clay soil expands and contracts through wet winters and dry summers, and homes on Fairfax’s slopes shift a little every year. A door that binds in January and swings freely in August is usually a foundation or framing issue, not a hardware problem. We find the difference before we sell you a new door.
Pricing for Windows & Doors in Fairfax, CA
Window replacement in Fairfax typically falls between $4,500 and $15,000 depending on the number of openings, whether the home sits on a steep lot requiring hand-carrying, and whether fire-hardening upgrades get pulled into the permit. A full impact window package runs $8,000 to $25,000. Door installation and replacement work generally lands between $800 and $3,000 per opening for solid exterior doors, with custom or impact-rated doors running higher. Fairfax’s permitting and fire-compliance layer adds cost per square foot compared to flatland cities nearby, but it also buys a house that holds up better when the wind blows and the ridge gets dry.
Call (877) 610-1318 and ask for a free written estimate. No trip charge inside the county, and if you have a written estimate from another contractor, bring it in. We’ll give you a free second opinion on it.
We Also Serve Cities Near Fairfax
Our crews work throughout Marin County, including San Anselmo, San Rafael, Kentfield, and Lucas Valley-Marinwood. If your home sits on the edge of Fairfax, we’ll still be there the same week. And if your project touches the hardscape around your windows and doors, we also handle Fence Installation in Fairfax and Driveway & Pavers in Fairfax so the whole property comes together under one crew.
Serving Fairfax, CA - Our Local Coverage Area
We’re based in the Fairfax 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 Fairfax
For most repair work, we can be in Fairfax within one to two business days. Fairfax is a small town with narrow streets and limited parking, so we schedule hillside jobs in the morning when trucks can still maneuver. If you have a broken window or a door that won’t close and secure, call (877) 610-1318 and we’ll get you on the schedule fast.
We cover the entire town, including 94930 and 94978, from the flats near downtown up through the hillside neighborhoods off Bolinas Road and the areas around Deer Park. We don’t cherry-pick easy streets. If you’re in Fairfax, we’ll come to your door.
We keep a phone answered by a live person 24 hours a day. If a window is broken or a door won’t close and secure, call immediately and we’ll talk through the situation and get someone out as soon as the job allows. A live person answers at (877) 610-1318, day or night.
Fairfax sits entirely within a Very High Fire Hazard Severity Zone, which means most window and door permits trigger CAL FIRE defensible-space and fire-hardening requirements that flatland towns don’t face. Marin County also enforces a stricter permitting process here than in most nearby communities. The result is more code-intensive work and sometimes more material upgrades, like ember-resistant vents or impact-rated glass. We show you those costs up front in writing, before you agree to anything.
Every window and door job carries our written 90-Day Done Right Promise. If something isn’t right, Tom comes back and makes it right, one call. The products we install also carry their own manufacturer warranties, and we’ll walk you through exactly what’s covered before you sign. Call (877) 610-1318 for an exact quote on your project. Estimates are free.
Contact us: call (877) 610-1318 to schedule a free written estimate for any window or door project in Fairfax. A live person answers. We’ll come out, look at the job, and hand you a written number you can count on. No trip charge inside the county, and a 10% senior and veteran discount on every project. If you have a written estimate from another company, bring it in. We’ll give you a free second opinion.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Fairfax and Marin County since 1998.







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