Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterConstruction Services in Hillsborough, CA
If you own a home in Hillsborough, you already know the drill: the estimator from the big regional outfit takes one look at your hillside lot, your 1920s Spanish Colonial, and your winding private road, and starts hedging. Hillsborough isn’t a town where cookie-cutter construction works. The local Architectural Review Board will see plans that worked in Burlingame and send them back stamped for resubmission. We’ve learned that the hard way, and it’s why our approach here is different. Call (877) 610-1318 and you’ll speak with a live person who knows the 94010 ZIP and the people who inspect it. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, with crews serving Hillsborough locally.
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 Hillsborough Homeowners Choose Barrett & Sons Construction
Tom Barrett founded this company in 1998 with a simple rule: his name goes on the truck, so his name goes on the work. Today Tom’s sons run the crews, and that matters in Hillsborough, where a contractor’s reputation travels up and down the hillside roads faster than a county inspector’s truck. Homeowners in the lower flats off Chateau Drive and up on the winding lanes above Crystal Springs Road call us because they want the person who answers the phone to be the same person who stands on the job site. Our background-checked, uniformed crew members carry the Barrett & Sons name, and Tom publishes his name, address, and license number. Look it up before you sign anything. Ask anyone on your street, or verify the license yourself. We’ll wait.
The 90-Day Done Right Promise sits on every contract we write in Hillsborough. If it’s not done right, one call brings Tom back. No fine print, no arbitration clause. He lives twenty minutes away; if something’s wrong, he wants to know about it.
Construction Services We Offer in Hillsborough
Kitchen Remodeling
The older estates in Hillsborough often have kitchens buried behind servant staircases and butler’s pantries that don’t fit how anyone lives now. We plan Kitchen Remodeling in Hillsborough around the ARB’s material and massing standards from day one, and we specify KraftMaid and Cambria because named brands hold up under scrutiny.
Learn more about our Kitchen Remodeling in Hillsborough.
Bathroom Remodeling
Plaster walls hide decades of plumbing surprises in Hillsborough’s 1910s through 1960s homes. We write every allowance on paper before we open a wall, so a cast-iron drain replacement doesn’t become a surprise invoice at the end. For Bathroom Remodeling - Hillsborough projects, this matters even more.
Learn more about our Bathroom Remodeling in Hillsborough.
Roofing
Hillsborough’s mature heritage oaks drop branches, and the winter rains on the Peninsula test every flashing detail. We install Hillsborough Roofing with GAF and CertainTeed systems, and we pull permits and pass inspections on every eligible job because the ARB reads permit histories.
Learn more about our Roofing in Hillsborough.
Windows & Doors
Windows & Doors in Hillsborough on a Tudor Revival means matching sightlines and trim profiles that the ARB will absolutely review. We carry Andersen and Marvin lines that let us match period profiles without custom-milling every frame from scratch.
Hillsborough homeowners can learn more by calling (877) 610-1318.
Fence Installation
Property lines on Hillsborough’s multi-acre lots often follow old survey stakes and mature plantings, not the neighbor’s recollection. We verify property lines before we dig a single post hole, and we build fences that hold up to hillside drainage.
Hillsborough homeowners can learn more by calling (877) 610-1318.
Driveway & Pavers
Concrete trucks don’t love the upper hillside roads, and neither do crane operators. We plan paver and driveway projects around access constraints from the first site visit, using Belgard and Techo-Bloc products that handle Hillsborough’s expansive clay soils without cracking.
Hillsborough homeowners can learn more by calling (877) 610-1318.
Home Additions & ADU
Adding square footage in Hillsborough means presenting architect-stamped plans to the Town’s Architectural Review Board and surviving their design standards for massing and materials. Our plans account for that layer from the start, not as a surprise discovery two months into permitting.
Hillsborough homeowners can learn more by calling (877) 610-1318.
Neighborhoods We Serve in Hillsborough
We work across the entire 94010 ZIP, from the estate lots along Hayne Road to the hillside properties above Skyline Boulevard. Our crews know which access roads a concrete truck can manage and which need a concrete pump staged at the bottom.
- Lower Hillsborough (Chateau Drive, Butternut Drive)
- Upper Hillsborough (Crystal Springs Road, Darrell Road)
- Hillside estates off Hayne Road
- Properties near the Burlingame border along El Cerrito Avenue
Why Hillsborough’s Climate & Housing Affect Construction
Hillsborough sits on rolling hillside terrain underlain by expansive Bay Area clay, and the heavy Peninsula winter rains do not drain politely. Where flat neighboring cities handle a rainy season without much thought, Hillsborough properties routinely face slope drainage failures, retaining wall movement, and foundation heave. Any site disturbance here effectively requires grading and drainage planning as part of the scope. The town’s proximity to the San Andreas Fault along the western ridgeline puts these large, often unreinforced masonry estates squarely in a high seismic-hazard zone. We see original cripple-wall and post-and-pier foundations on homes built in the 1910s and 1920s that need lateral bracing and foundation bolting before any remodel above them makes sense.
The housing stock itself is dominated by custom estates built between the 1910s and 1960s, Spanish Colonial Revival, Tudor Revival, and Mediterranean styles on multi-acre lots, plus a significant inventory of mid-century modern homes on the upper hillside roads. These homes carry their original architectural character, and the Town of Hillsborough’s Architectural Review Board enforces strict preservation of that character. Every project here runs through a local ARB approval layer on top of standard building permits, which routinely surprises contractors who work in Burlingame or San Mateo. We plan for it.
Pricing for Construction in Hillsborough
Hillsborough is not a market where the lowest bid wins. The ARB process, arborist reports, hillside access planning, and seismic retrofit scopes all add real cost and real time to projects here. We give written, line-item estimates and every allowance, every scope change, every price adjustment arrives as a written change order before any work happens. No surprise invoices at the end. Here are honest starting ranges for typical Hillsborough scopes:
- Kitchen remodel: $85,000 - $180,000+ depending on the estate’s existing conditions and ARB scope
- Bathroom remodel: $45,000 - $95,000+ when plumbing and plaster remediation are included
- Roof replacement on a hillside estate: $35,000 - $90,000+ given slope access, material selection, and heritage tree constraints
- Seismic retrofit and foundation work: $30,000 - $120,000+ depending on original foundation type and access
- ADU or addition: $350 - $600+ per square foot, heavily influenced by the ARB’s design review process
Call (877) 610-1318 for an exact quote. Estimates are free, and a second opinion on any written estimate from another contractor is also free.
Service Area - Cities Near Hillsborough
While this page focuses on Hillsborough, our crews also serve homeowners across the mid-Peninsula, including Burlingame, Millbrae, San Mateo, and San Bruno. If you’re on the Hillsborough border and your project crosses a city line, call us and we’ll sort out which jurisdiction’s permits apply.
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 About Construction in Hillsborough
Plan for four to eight weeks of ARB review on top of standard building permit timelines in Hillsborough. The Town’s design standards for massing, materials, and landscaping preservation are among the strictest on the San Mateo County Peninsula, and substantial remodels require architect-stamped plans. We include ARB submission and revision cycles in our project schedule from the first site visit, so you’re not waiting on a surprise six weeks after demo should have started. Call (877) 610-1318 and we’ll walk you through a realistic timeline for your specific property.
If your project involves grading or trenching anywhere near a mature heritage oak, yes, the Town’s tree-protection ordinance will very likely require a certified arborist report before any grading permit is issued. Hillsborough’s upper hillside properties are thick with these oaks, and the ordinance has real teeth. We bring in a certified arborist early in the planning phase so the report doesn’t hold up your permit later.
Not without a written change order that you sign first. Every allowance, every scope adjustment, every price change arrives on paper before a single nail moves. An allowance that isn’t on paper is a surprise waiting for a date, and we don’t work that way. Call (877) 610-1318 to see what a written, line-item estimate looks like.
Sometimes no, not directly. Many of Hillsborough’s narrow, winding private roads were designed for 1920s-era vehicles and full-size concrete trucks simply cannot navigate them. We plan for that from the first visit, staging a concrete pump at the bottom of the road when needed and coordinating the pour in smaller batches. It adds cost, but it’s a known cost from day one, not a surprised faces at the curb.
Every eligible job gets permits pulled and inspections signed. The permit inspector works for you, not for us, which is exactly why we like having him on the job. Hillsborough’s ARB layer on top of standard permitting makes the paperwork thicker than most towns, but skipping it is not an option we’ll offer. Call (877) 610-1318 and we’ll review your scope and tell you exactly which permits apply.
Ready to Talk About Your Hillsborough Project?
We’re not the cheapest bid in Hillsborough, and we don’t want to be. We’re the contractor whose name is on the truck, whose sons run the crews, and whose 90-Day Done Right Promise is written on every contract. If you’ve been burned by a company that quoted one price on the phone and handed you a different bill at the door, call us and experience the difference. Call (877) 610-1318 today to schedule your free estimate. A live person answers, 24/7. No voicemail box, no out-of-state call center. And don’t forget: $40 off any repair over $200, free second opinions on any written estimate, no trip charge inside the county, and a permanent 10% discount for seniors and veterans.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Hillsborough and the San Francisco Bay Area 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 Hillsborough Customers Say
"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"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