Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Construction Services in San Mateo, CA
If you’re weighing a remodel, roof replacement, or ADU in San Mateo, a fair starting budget is $35,000-$120,000 for a kitchen, $25,000-$65,000 for a bathroom, and $150-$350 per square foot for an addition, depending on what the soils report and permit desk require. We’re Barrett & Sons Construction, an owner-operated outfit serving neighborhoods from Baywood to Mariner’s Island. Call (877) 610-1318 and you’ll get a live person, not a voicemail box.
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 San Mateo Homeowners Choose Barrett & Sons Construction
Tom Barrett puts his name, address, and license number on every contract, and his sons run the crews. That matters in a city where homeowners have been handed one price on the phone and a different bill at the door. We’ve built our reputation in the Aragon and Shoreview neighborhoods by doing the opposite: every scope change arrives as a written change order before a single nail moves, and every eligible job includes permits pulled and inspections signed. The permit inspector works for you, not for me, which is exactly why I like him.
Homeowners in San Mateo Park and the historic downtown 94401 zone tell us they appreciate seeing the same faces on-site from demo day to final walkthrough. No out-of-state call center routes our phones. No franchise dispatches strangers to your door. And every completed job carries our 90-Day Done Right Promise in writing: if it’s not done right, Tom comes back and makes it right, one call. Ask anyone on your street, or look up the license number yourself.
Construction Services We Offer in San Mateo
Kitchen Remodeling
We measure, design, and build Kitchen Remodeling - San Mateo sized for postwar ranch homes and Craftsman bungalows, and we stock cabinets and surfaces you can look up. KraftMaid and Cambria come out of our van, not mystery brands off a truck.
Learn more about our Kitchen Remodeling in San Mateo.

Bathroom Remodeling
Older homes near downtown often hide galvanized drain lines behind lath-and-plaster walls, so we scope plumbing access before we touch tile for Bathroom Remodeling - San Mateo. We carry Schluter waterproofing systems and Sterling fixtures as standard, not as an upsell.
Learn more about our Bathroom Remodeling in San Mateo.

Roofing
San Mateo’s persistent morning fog keeps north-facing fascia and deck ledger boards damp through spring, which means our Roofing in San Mateo often uncovers framing rot that needs to be addressed before new shingles go down. We install GAF systems with written change orders if the decking underneath isn’t sound.
Learn more about our Roofing in San Mateo.

Windows & Doors
We replace fogged or failed Windows & Doors in San Mateo and reset door slabs that no longer close square, a common issue in 1940s-1960s framing that has settled over decades. Andersen and Marvin product lines are available and priced out in writing before the first sash comes out.

Fence Installation
Property lines in San Mateo neighborhoods like Baywood and Aragon often require a survey before the first post hole is dug, especially on older lots. We handle the survey coordination and build fences that hold up to wet spring soil.

Driveway & Pavers
For homeowners in 94404, any paver or driveway job sits on bay fill, so we plan base compaction and drainage around soft subgrade conditions. We install Belgard and Techo-Bloc pavers with the right base depth for the soil you actually have, not the soil a brochure assumes.

Home Additions & ADU
Adding square footage in San Mateo means building to current seismic and foundation codes, especially east of Highway 101. We pull permits, coordinate the structural engineer when the city requires one, and stand with you at inspection.

Neighborhoods We Serve in San Mateo
Our crews work throughout San Mateo every week, and you’ll typically see us on-site within a few days of a signed scope. Common response time is 3-5 business days for estimates.
- Baywood
- Aragon
- San Mateo Park
- Shoreview
- Mariner’s Island (94404)
Why San Mateo’s Climate & Housing Affect Construction
San Mateo is split in two geologically, and a contractor who doesn’t know which side of Highway 101 your house sits on shouldn’t be quoting your job. The western zip codes, 94402 and 94403, climb into hillside terrain close to the San Andreas Fault corridor at Crystal Springs. Those homes often need seismic retrofits and hillside foundation attention. The eastern side, 94404 around Mariner’s Island, sits on bay fill with soft mud and high water tables. That soil liquefies during strong shaking, which is why the city routinely requires a soils report and a structural engineer’s foundation design before a permit is issued for anything east of US-101.
The housing stock tells the same story. Central flatland neighborhoods are full of 1940s-1960s wood-frame ranch homes and postwar bungalows, many still sitting on original cripple-wall foundations with undersized anchor bolts that fail current seismic standards. That’s a retrofit job waiting to happen. Downtown, the older 94401 properties include 1910s-1930s Craftsman and Spanish Colonial Revival homes with lath-and-plaster walls and original galvanized or cast-iron drain lines, both of which complicate any gut-renovation permit in specific, predictable ways. We plan for those discoveries from the first site visit, not on change-order day.
Pricing for Construction in San Mateo
What you’ll pay depends more on your soil and your home’s age than on the room’s square footage. Expect:
- Kitchen remodel: $35,000-$120,000
- Bathroom remodel: $25,000-$65,000
- Roof replacement: $18,000-$45,000
- Addition or ADU: $150-$350 per square foot
Targeted repairs work differently. A window replacement might run $900-$2,800 per opening. A fence section runs $45-$80 per linear foot. Every quote arrives as a written line-item scope, and we hold $40 off any repair over $200 as a standing offer. Call (877) 610-1318 for a free estimate.
Service Area - Cities Near San Mateo
Barrett & Sons serves San Mateo and the neighboring Peninsula communities of Foster City, Belmont, Hillsborough, and Redwood Shores. Wherever you are, you’ll reach the same live person on the phone and the same name on the truck.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 San Mateo
A typical kitchen remodel in San Mateo runs between $35,000 and $120,000, with the wide range driven by whether your home sits on flatland with standard footings or west of Highway 101 on hillside that needs additional structural work. The permit fees and inspection schedule in San Mateo are predictable once we know your zip code and foundation type. Call (877) 610-1318 for an exact line-item quote, and ask us to explain the difference between an allowance and a change order, because an allowance that isn’t on paper is a surprise waiting for a date.
If your property is in the 94404 zip code east of US-101, the city’s building department routinely requires a soils report and often a structural engineer’s foundation design before a permit is approved, because the bay mud under that side of town doesn’t hold standard spread footings. Homes west of Highway 101 in 94402 or 94403 rarely trigger the same requirement. We coordinate the report and the engineer as part of your written scope, and the cost lands in your initial estimate, not in a surprise at the end.
It won’t change without a written change order you see and sign before the extra work begins. That’s the only way Tom Barrett has run jobs since 1998, and it’s the difference between a fixed price and a phone quote that drifts upward. If a San Mateo home hides rotted deck ledgers under old shingles or cracked cast-iron drains inside a 1930s wall, you’ll know the added scope and cost before a single swing of the hammer.
Yes. We pull permits and schedule inspections on every eligible job, because the last contractor most San Mateo homeowners used told them permits were optional. The city’s permit desk knows our crews by name, and we stand with you when the inspector walks the job. It protects your resale value and your insurance, and it’s written into every contract.
A planned addition or ADU in San Mateo typically takes 4-8 months from permit approval to final inspection, depending on foundation work, engineering reviews, and the city’s inspection schedule. Kitchens and bathrooms move faster, usually 6-10 weeks once permits are in hand. We’ll map the timeline out for you before you sign, and we’ll update it in writing if anything shifts. Call (877) 610-1318 and ask for a schedule, not a salesman.
Ready to get a real number? Call Barrett & Sons Construction at (877) 610-1318 for your free estimate. We’ll send someone who answers your questions directly, puts every price in writing, and stands behind it with the 90-Day Done Right Promise.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving San Mateo and the surrounding Peninsula.
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 San Mateo Customers Say
"Genuinely good builders and I would use them again. Site tidiness slipped a bit in the middle stretch and I had to mention it, after which it was spotless every evening."
- Marcus Threadgill"Every change to the price came as a written change order before the work happened, not as a surprise on the final bill. I did not know contractors still did that."
- Xiomara Benavides"Tom Barrett was on our job most days himself, not just at the quote and then never again. When something needed deciding there was an actual person to decide it with."
- Rosalie Pemberton







Before
After
Before
After
Before
After