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
Hiring a general contractor in Hillsborough means hiring someone who understands that your project will face a review process most Peninsula towns don’t require. We’re talking architectural review, geotechnical scrutiny, and drainage sign-offs before a single permit lands. That’s the reality off Hayne Road, El Cerrito Avenue, and throughout 94010. Seaside Contractors manages that process for you. Call (833) 589-8103 and we’ll walk your property, scope the work, and tell you honestly what the town will ask for.
Why Seaside Contractors Is Hillsborough’s Preferred General Contractor Company
Hillsborough homeowners tend to ask sharper questions than most. They’ve read the material specs. They know the difference between a GAF and a CertainTeed roof. Glen Sorrento built Seaside Contractors to meet that homeowner exactly where they are, with 50+ vetted brand partnerships spanning roofing, cabinetry, countertops, plumbing fixtures, windows, fencing, hardscaping, and ADU manufacturing. One contractor. Every trade.
Our General Contractor team has run projects throughout Hillsborough, from estate-scale remodels along Crystal Springs Road to hillside additions that required retaining walls and drainage re-engineering. The common thread is that these are not production jobs. Every project is custom, and every project clears town review. We plan for that from day one, because it sets the calendar more than anything else.
When you call, you get a straight answer about timeline, long-lead items, and what Hillsborough’s design-review process will actually require. That’s why homeowners in Hillsborough keep our number.
Styles & brands we work with
Licensed General Contractor in Hillsborough
Licensed General Contractor work in Hillsborough is a different animal than it is in Burlingame or San Mateo. The town runs its own permitting and inspections, and its architectural review plus hillside and grading requirements mean even a modest addition can trigger separate design review, geotechnical analysis, and drainage evaluation. We handle those submittals as part of the job. A full home addition in Hillsborough typically runs $45,000 – $130,000, and the price is set in writing before we order long-lead materials. No change-order games later.
Architectural Review and Permit Management
We prepare and submit the drawings, material boards, and drainage studies Hillsborough asks for. We’ve sat through enough town reviews to know which details get flagged. Glen Sorrento schedules those review dates into the master timeline so you’re not losing weeks to bounced submittals.
Hillside and Slope Construction
Many Hillsborough lots slope, which means retaining walls, erosion control, and foundation waterproofing show up in project scopes routinely. We sequence that work ahead of the wet season whenever possible. Winter rains on a hillside parcel are not a surprise to us; they’re a planning variable.
Residential General Contractor in Hillsborough
Residential General Contractor work here skews toward high-end remodels, additions, and rebuilds on estate-scale properties. A kitchen remodel in Hillsborough runs $14,000 – $45,000, a bathroom remodel $9,000 – $28,000, and a full ADU construction $90,000 – $220,000. Those ranges reflect the material tier this town expects: custom millwork, architectural glass, and specialty finishes that most contractors can’t even source. We can.
Custom Millwork and Architectural Glass
On a gated estate off Brewer Drive, we ran a whole-home remodel with custom KraftMaid cabinetry, Cambria slabs, and architectural glass. The calendar was set by millwork and glass lead times, not our crew’s labor. We fixed the scope of work, allowances, and draw schedule in writing before ordering, then sequenced noisy work around the neighbors and drove the punch list to inspection sign-off on the town’s schedule.
Long-Lead Material Coordination
Hillsborough jobs don’t stall on labor. They stall on lead times for custom cabinets, specialty windows, and imported stone. We order those items early, against a written allowance schedule, so your project doesn’t sit idle waiting on a Cambria slab or a Toto fixture. Budget stays locked because the allowances are locked.
Trusted Brands We Service in Hillsborough
We install and service material lines most Hillsborough homeowners already recognize. KraftMaid and Wellborn cabinetry. Cambria, Silestone, and Caesarstone countertops. Toto and American Standard plumbing fixtures. Schluter waterproofing systems behind every tile surface. We also carry and coordinate Sterling fixtures where the budget calls for value engineering. Because we order directly through these programs, Hillsborough clients get access to materials and lead times that smaller shops can’t offer.
See the difference
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AfterCommon General Contractor Problems We See in Hillsborough Homes
- Quoting labor-driven timelines without long-lead items. Custom millwork and architectural glass set the real schedule on estate projects. A contractor who ignores those lead times is guessing, and the guess is usually wrong by six to ten weeks.
- Skipping written allowances and change order discipline. Designer-selected finishes and specialty plumbing fixtures can blow a budget after rough-in if the allowances aren’t fixed in writing. We set every allowance before drywall goes up.
- Treating Hillsborough’s architectural review like generic county permitting. San Mateo County processes don’t apply here the same way. Hillsborough’s own design review and hillside requirements bounce submittals that other towns would rubber-stamp, and the lost weeks come out of your schedule, not the contractor’s.
- Ignoring drainage and hillside stability until it’s too late. Sloped lots plus wet winters equal retaining walls, foundation waterproofing, and erosion control. We scope this work early because fixing it after the fact costs triple.
Pricing for General Contractor in Hillsborough, CA
Every estimate we write for Hillsborough is a fixed line-item quote, not a vague range with fine-print exclusions. The numbers below reflect what we see across the 94010 market. What pushes a Hillsborough job toward the top of these ranges is usually material tier and site complexity: hillside access, architectural review conditions, and the long-lead custom pieces. What pushes it toward the bottom is value-engineering the finishes without switching contractors. You get both options from one team.
| Project Type | Typical Hillsborough Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
Call (833) 589-8103 for a free estimate. We’ll put the number in writing before anything is ordered.
We Also Serve Cities Near Hillsborough
Seaside Contractors handles full-scope general contracting throughout the Peninsula, including Burlingame, Millbrae, Highlands-Baywood Park, and San Mateo. If you’re just over the town line and planning a remodel or addition, call (833) 589-8103 and we’ll tell you which jurisdiction’s rules apply to your parcel.
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 runs its own architectural review and hillside/grading scrutiny, so even a modest addition can trigger separate design review, geotechnical analysis, and drainage review before a permit is issued. That’s additional weeks most Peninsula towns don’t require. We build those review dates into the master schedule and submit the drawings, material boards, and drainage studies up front so nothing catches the project flat-footed. Call (833) 589-8103 for an exact timeline on your specific parcel.
Long-lead custom millwork and architectural glass, not labor. A custom KraftMaid cabinet run or a Cambria slab order can take six to ten weeks, and if those items aren’t ordered against written allowances at the start, the project sits idle after rough-in. We order early and lock the scope in writing. Call (833) 589-8103 and ask us what lead times govern your material selections.
We treat the architect and designer as part of the same schedule. Glen Sorrento reviews drawings against the allowance schedule before we order anything, and we flag conflicts early. On a Brewer Drive estate remodel, the architectural glass and custom millwork were ordered the same week the drawings were stamped. That coordination kept the job from stalling. Call (833) 589-8103 to discuss how your design team folds into our process.
Yes. Most of our Hillsborough clients stay in their homes during the build. We sequence noisy demolition and exterior work to respect the neighborhood’s quiet expectations, and we coordinate gated access with your household. Dust control and daily cleanup are written into the scope. Call (833) 589-8103 to walk through a sample work sequence.
Wet winters on sloped lots create real drainage, erosion, and foundation waterproofing issues that flat parcels in San Mateo never face. We schedule retaining walls and waterproofing ahead of the rainy season whenever possible, and we stage erosion control before any excavation. On hillside additions, we include drainage studies in the permit package so the town’s review doesn’t stall. Call (833) 589-8103 and we’ll assess your specific slope exposure.
Written by Glen Sorrento, Owner at Seaside Contractors, serving Hillsborough and the surrounding Peninsula.