Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Construction Services in Fairfax, CA
If you own a home in Fairfax, you already know the drill: the hillside lots, the narrow roads, the fire-safety codes that have rewritten how every project gets priced and permitted. Barrett & Sons Construction handles all of it, from a new kitchen to a Class A roof replacement to an ADU tucked into a hillside. We return calls fast, and Tom Barrett answers his own phone: (877) 610-1318. If you’re planning work in the 94930 or 94978 ZIP codes, you’ll want a contractor who knows the local rules before the first nail moves.
Fairfax sits entirely inside a Very High Fire Hazard Severity Zone. That one fact changes everything about construction here, and most of what you’ll read below comes back to it.
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 Fairfax Homeowners Choose Barrett & Sons Construction
Most of the calls we get from Fairfax start the same way. A homeowner got a bid from an out-of-town outfit, signed it, and then watched the price climb once the Marin County permit office got involved. By the time the fire-hardening retrofit was added, the job looked nothing like the original quote. That’s exactly the experience our company was built to prevent. We have been owner-operated since 1998, and Tom Barrett’s name, address, and license number are published for anyone who wants to verify them. No mystery LLCs, no out-of-state call center. You can look us up before we ever set foot on your property.
We’ve worked extensively in the Deer Park and Cascade Canyon neighborhoods, two areas where steep driveways and fire-code requirements collide. Homeowners there don’t just need a contractor. They need someone who’s already navigated Marin County’s defensible-space reviews and knows which materials actually pass inspection. Every permit gets pulled, every inspection gets signed off, and every price change arrives as a written change order before the work happens. That’s not a slogan. It’s how the business runs.
Construction Services We Offer in Fairfax
Kitchen Remodeling
Our Kitchen Remodeling - Fairfax team knows these kitchens tend to be compact and original to the home, which means layout matters more than square footage. We plan around how you actually cook, not how a catalog photo staging looks. KraftMaid cabinetry and Cambria quartz are our go-to materials because they hold up in humid, fog-heavy summers.
Learn more about our Kitchen Remodeling in Fairfax.

Bathroom Remodeling
Our Bathroom Remodeling - Fairfax crews see this all the time: homes from the 1920s through the 1960s often have bathrooms that were never vented properly, and Fairfax’s damp winters make that worse. We correct the ventilation, rebuild the waterproofing, and install finishes that stand up to real moisture loads. Written allowances mean you’ll know exactly what the tile, fixtures, and labor cost before we start.
Learn more about our Bathroom Remodeling in Fairfax.

Roofing
With our Roofing in Fairfax, a roof is a fire-protection system first and a weather shield second. Class A roofing material is not optional, and open-soffit eaves on older homes often need ember-resistant retrofit work at the same time. We carry GAF and CertainTeed products and price the full job, including the fire-hardening details Marin County requires.
Learn more about our Roofing in Fairfax.

Windows & Doors
Old single-pane windows lose heat in the winter and, more critically in Fairfax, don’t resist ember intrusion during fire season. Windows & Doors in Fairfax need proper fire-rated installation. We install Andersen and Marvin products with the correct fire-rated installation details for a VHFHSZ home. Every window job gets a written scope that includes flashing, trim repair, and any rot we find once the old unit comes out.
Learn more about our window and door work by calling (877) 610-1318.

Fence Installation
Most Fairfax fence replacements involve rot at the post bases from ground moisture and the occasional tree limb that came down in a winter storm. We set posts in concrete below the rot line and use materials that won’t need replacing in eight years. If your fence line runs near Fairfax Creek, we’ll account for the soil movement that shows up after heavy rain.
Learn more about our fence work by calling (877) 610-1318.

Driveway & Pavers
Hillside driveways in Fairfax don’t just need paving. They need correct drainage, because water that pools against the house creates the rot and foundation shift we see all over town. We use Belgard and Techo-Bloc pavers for permeable surfaces that handle winter runoff better than solid concrete.
Learn more about our paver and driveway work by calling (877) 610-1318.

Home Additions & ADU
Fairfax has a lot of unpermitted additions from the 1970s, 1980s, and 1990s. When you go to add square footage or build an ADU, Marin County will often require a full fire-hardening retrofit on the original structure before any new permit is issued. We scope that work honestly and give you the real number up front, not the surprise at the end.
Learn more about our home building and ADU options by calling (877) 610-1318.

Neighborhoods We Serve in Fairfax
We’re in and out of Fairfax every week, and we know which streets give a delivery truck trouble. Typical response time for an estimate in the area is one to two business days, depending on the season.
- Deer Park
- Cascade Canyon
- Fairfax Hills
- Manor
- Oak Manor
Why Fairfax’s Climate & Housing Affect Construction
Fairfax sits in a narrow inland valley where two weather systems fight all year. In winter, fog and atmospheric-river storms push moisture into wood-frame bungalows and hillside foundations near Fairfax Creek, accelerating the rot cycle and shifting piers on sloped lots. In summer and fall, the same valley gets hot, dry, and windswept under a dense redwood and oak canopy, which is why the entire town remains under a Very High Fire Hazard Severity Zone designation.
That designation is not a formality. It means any construction project triggers CAL FIRE defensible-space compliance and fire-hardening requirements: ember-resistant vents, Class A roofing, ignition-resistant siding. Then Marin County adds its own permitting layer on top. The result is a Fairfax remodel or addition that takes longer and costs more per square foot than the same job in San Rafael or Novato. If your contractor doesn’t know that on day one, you’ll find out later, and you’ll pay for the delay. We know it on day one.
Pricing for Construction in Fairfax
Honest numbers matter, so here they are. A Fairfax kitchen remodel typically runs $45,000 to $90,000 depending on layout changes and fire-code upgrades. Bathrooms run $25,000 to $55,000. Roof replacements with Class A material and ember-resistant venting run $18,000 to $35,000. Window replacement with fire-rated installation runs $900 to $1,800 per opening. ADUs are all over the map, but $250,000 to $450,000 is realistic when hillside foundation work and fire-hardening are included.
- Kitchen remodel: $45,000-$90,000
- Bathroom remodel: $25,000-$55,000
- Roof replacement (Class A): $18,000-$35,000
- Windows (per opening, installed): $900-$1,800
- ADU (full build): $250,000-$450,000
Every estimate is free. Every change order is written before the work happens. There’s also a permanent 10% senior and veteran discount and a standing offer of $40 off any repair over $200. Call (877) 610-1318 for a line-item quote, not a ballpark.
Service Area - Cities Near Fairfax
We handle construction work throughout central Marin. If you’re in San Anselmo, San Rafael, Kentfield, or Lucas Valley-Marinwood, the same team and the same written-change-order guarantee apply. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, but the crews serving these communities live and work locally.
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 About Construction in Fairfax
A kitchen remodel in Fairfax typically costs $45,000 to $90,000, with the higher end covering layout changes, structural work, and any fire-hardening retrofits Marin County requires on the existing structure. The number that matters isn’t the bid, it’s the final invoice, and ours match because every change order is written before the work happens. Call (877) 610-1318 for a free, line-item quote.
Yes, on virtually all structural, electrical, plumbing, and roofing work. Fairfax is entirely within a Very High Fire Hazard Severity Zone, so Marin County and CAL FIRE review most projects for defensible-space and fire-hardening compliance. We pull permits on every eligible job, and the inspector signs off before final payment. If a contractor tells you permits are optional, that’s your signal to keep looking.
Very likely. Unpermitted additions and decks from the 1970s through the 1990s are common in Fairfax’s hillside neighborhoods, and Marin County building officials often require a full fire-hardening retrofit on those legacy structures before issuing any new permit. That adds cost and timeline to a project that may have looked simple at first. We scope that work honestly up front so the final number doesn’t change later.
Fire-code compliance is the main reason. Fairfax sits in a narrow valley at the wildland-urban interface, and the CAL FIRE requirements for ember-resistant vents, Class A roofing, and ignition-resistant siding add thousands to most projects. Steep hillside lots with limited truck access also require more hand-carrying and crane work. The combination pushes per-square-foot costs higher than flatland neighbors.
Most Fairfax roof replacements take four to eight working days once permits are approved and materials arrive. Fire-hardening details like ember-resistant vents and Class A underlayment add time compared to a standard roof in San Rafael. Winter storm delays near Fairfax Creek can stretch the schedule. We’ll give you a written timeline before we start, and any change to it comes as a written change order, not a voicemail.
Call for a Free Fairfax Construction Estimate
If you’re ready to price your project, call (877) 610-1318. You’ll get a live person, not a voicemail box. We’ll talk through the scope, the fire-code items, and the honest cost range for your specific street. Then we’ll put everything in writing before you sign anything. Free second opinions on any written estimate, no trip charge inside the county, and the 90-Day Done Right Promise on every job. Ask anyone on your street, or look up the license number yourself.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Fairfax and Marin County since 1998.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction 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 Fairfax Customers Say
"Came back a year later to sort a door that had dropped as the frame settled. No charge and no argument about whether it was covered."
- Thaddeus Oyelowo"Addition over the garage matched the original roofline and brickwork so closely that visitors do not realise it was added. He tracked down the closest brick he could find rather than settling."
- Gideon Stroud"The bathroom was finished on the day he said at the start, which nobody had led me to believe was possible."
- Loretta Vanterpool







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