Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Hillsborough
If you own a home on one of Hillsborough’s steep, wooded estate lots, you already know construction here is not like building anywhere else on the Peninsula. The town’s lot-coverage and tree-preservation ordinances, its own building department, and winding private roads turn even a modest kitchen remodel into a project that demands a contractor who has done this before. We have. San Bruno Construction handles full-scope residential work in Hillsborough, from interior remodels to custom additions and prefab ADUs, with one accountable point of contact from first walk-through to final inspection. If you are pricing a project, call (866) 472-1908 for a free estimate and we will walk your lot with you.
Key Takeaways:
- Hillsborough requires town sign-off on lot coverage and tree preservation before a demolition permit is issued – this adds time and can reshape scope.
- Steep driveways, narrow roads, and fog-wet winters affect delivery scheduling, crane placement, and drainage planning.
- Our General Contractor team coordinates every trade and material category under one contract.
- We provide written line-item estimates calibrated to Hillsborough’s actual market, not Bay Area averages.
Why San Bruno Construction Is Hillsborough’s Preferred General Contractor Company
Hillsborough homeowners do not hand out trust easily, and they should not have to. The town is full of large custom homes on lots of an acre or more, many with guest houses, pools, and private driveways that wind through mature oak and redwood canopy. Work here skews toward full custom rebuilds, gut remodels, and estate-scale additions, not tract work. That is exactly the kind of project we run week in and week out. Noel Carvalho leads our team, and he has walked enough Hillsborough lots to know which questions the town will ask before you ever submit plans, including those related to Mr-Glass repair in Hillsborough.
Our Hillsborough customers tell us the same thing repeatedly: the single-contractor model removes the chaos. When a plumbing fixture selection affects rough-in framing, or a roofing decision changes exterior wall details, you are not calling three vendors to sort it out. You are calling us. One contract, one schedule, one person accountable for the entire build. Homeowners in Hillsborough regularly mention that coordination when they refer us to neighbors on streets like Skyline Boulevard or near the Carolands estate.
Styles & brands we work with
Residential General Contractor in Hillsborough
A residential General Contractor in Hillsborough takes a project from engineered plans to a finished structure, managing permits, materials, licensed subcontractors, inspections, and the schedule. On these steep, wooded lots, that role includes a lot of things a tract-home contractor never touches: crane placement, shoring and drainage plans, tree protection zones, winter hauling logistics, and submittals to the town’s architectural review process. A typical home addition in Hillsborough runs $45,000 – $130,000, while an ADU construction project ranges $90,000 – $220,000. Kitchen remodels land between $14,000 and $45,000 depending on cabinet grade and countertop selection.
Permit and Design-Review Navigation
Most Hillsborough projects require town approval before demolition, and the town checks lot coverage and tree-preservation rules early. We prepare submittals, coordinate with the town’s building department, and flag any red flags before you spend money on construction drawings that will not pass review.
Steep-Lot Grading and Drainage
Building on a Hillsborough hillside means water management is structural, not cosmetic. Wet winters, clay-heavy soil, and long slopes mean we scope drainage, retaining, and shoring at the estimating stage so those costs do not arrive as change orders later.
Hire a General Contractor in Hillsborough
When you hire a General Contractor in Hillsborough, you are buying schedule certainty and accountability, not just labor. The value shows up when a town reviewer rejects a tree-removal request and your framing schedule does not collapse, or when February rain hits mid-roof and tarps, pumps, and sequencing are already planned. A bathroom remodel in Hillsborough typically runs $9,000 – $28,000, while a full kitchen island installation with Cambria or Silestone tops lands between $3,000 and $10,000. Driveway replacement on these long private drives runs $5,000 – $14,000.
Single Contract, All Trades
Your project involves carpenters, electricians, plumbers, roofers, paint crews, and sometimes structural engineers. We coordinate all of them, and they answer to us, not to you. That is the job.
Prefab and ADU Capability
Most residential remodelers in the Bay Area cannot touch a prefab ADU. We can. Through brands like Abodu, Dvele, and Plant Prefab, we handle factory-built structures on Hillsborough lots, including foundation, utilities, and final site work. If you are weighing a site-built ADU versus a factory-built one, we walk you through both numbers honestly.
Trusted Brands We Service in Hillsborough
Hillsborough homeowners do not want whatever the contractor happens to have in the warehouse. They want choices, and they want them presented clearly. Our General Contractor team works with 50+ vetted brands across every category: KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone countertops, Kohler, Grohe, and Toto plumbing fixtures, GAF and CertainTeed roofing, James Hardie siding, and Belgard pavers. For prefab and ADU builds, we source through Abodu, Dvele, Mighty Buildings, and Plant Prefab. Because we stock and order for Hillsborough customers regularly, material lead times and delivery logistics on these narrow roads are already worked out before you sign.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Hillsborough Homes
- Pre-demolition tree and lot-coverage surprises. Hillsborough checks both before issuing a demo permit, and skipping the survey is the fastest way to a stop-work order. We run this check in writing before you commit.
- Winter hauling failures on steep driveways. A concrete truck that cannot climb a wet private drive in February destroys a pour schedule. We plan delivery windows, staging, and sometimes crane placement around seasonal conditions.
- Neighbor conflicts over narrow roads. Hillsborough’s winding streets have no staging room. Worker parking, crane setup, and material drops all need neighbor coordination and permit conditions met, or you get complaints and citations.
- Estate-scale scope creep. A “small addition” on an acre lot often touches drainage, septic setbacks, tree protection, and long utility runs. We price the real scope up front so the bid you approve is the job you get.
Pricing for General Contractor in Hillsborough, CA
Here is what we see in Hillsborough right now. These are line-item ranges, not padded guesses.
| Project | Typical Hillsborough Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Driveway Replacement | $5,000 – $14,000 |
What moves you within a range: lot slope, tree-protection requirements, access for equipment, finish-level choices, and whether the town requires architectural review beyond the standard submittal. We provide free written estimates. Call (866) 472-1908 and we will put numbers to your specific lot and scope.
We Also Serve Cities Near Hillsborough
San Bruno Construction works throughout the Peninsula. Beyond Hillsborough, we serve Burlingame, Millbrae, Highlands-Baywood Park, and San Mateo. Each city has its own permit quirks and housing stock, and we know them all well enough to keep your project moving without reinventing the wheel at city hall.
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 General Contractor in Hillsborough
Hillsborough enforces lot-coverage limits that cap how much of your parcel can be covered by structures, and the town verifies this before issuing a demolition permit. On many estate lots, an existing home plus guest house and pool already sits close to the limit, which means an addition or detached ADU may require either a variance or a reshaped scope. We check coverage against current town guidelines in writing before you commit to plans, so you know whether your project is a routine submittal or a fight. Call (866) 472-1908 for a free lot review.
Septic and well setbacks dictate where any new structure, addition, or even a deep foundation can sit, and Hillsborough’s larger lots often have both systems. A detached ADU or garage conversion that is too close to a septic leach field or well head will not pass review. We scope these setbacks early and adjust siting, foundation depth, and sometimes the structure’s footprint before quoting, which prevents a permit rejection three months into the project.
We plan crane placement, truck routes, and material staging before demolition begins, because Hillsborough’s narrow winding roads and long private drives leave almost no room for error. On a recent custom rebuild off Skyline Boulevard, we scheduled concrete trucks for early morning to avoid neighbor conflicts, staged materials at the bottom of the drive, and used a crane to set a 12-foot island with a Cambria quartz top. That kind of sequencing is not luck; it is written into the schedule. Call (866) 472-1908 and we will walk your access issues before you buy materials.
A detached ADU on a wooded Hillsborough lot starts with the tree survey and lot-coverage check, because those two items determine whether the ADU can go where you want it, or whether it needs to shift to protect root zones and stay within coverage limits. From there we handle foundation, utility runs, prefab or site-built structure, and final site work. A site-built ADU in Hillsborough typically runs $90,000 – $220,000; a factory-built unit through Dvele or Plant Prefab can land differently depending on site work and foundation conditions. We price both options side by side so you choose with real numbers.
Winter rains on Hillsborough’s steep lots turn private driveways into mudslide risks, delay concrete pours, and make material hauling dangerous if not planned. That affects schedule and cost: shoring, temporary drainage, sequenced pours, and early-morning deliveries all add line items that a dry-season quote omits. We build those contingencies into the estimate up front, not as change orders in February. Call (866) 472-1908 for a quote that reflects your lot’s actual winter conditions.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Hillsborough and the Bay Area Peninsula.