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
Planning a major remodel or addition on a Hillsborough estate means coordinating county permits, town design review, arborist reports, and a build that often spans an acre or more. It’s a different job than construction anywhere else on the Peninsula, and we approach it that way. Workshop Contractors has been General Contractor for Hillsborough homeowners who want one team accountable for the whole scope, from the roof line down to the pavers. If you’re weighing a kitchen remodel, a detached ADU, a whole-home renovation, or a garage conversion, call Noel Figueroa and the team at (844) 384-3361 for a free estimate that accounts for Hillsborough’s specific approval path before you commit.
Why Workshop Contractors Is Hillsborough’s Preferred General Contractor Company
Hillsborough is not a volume market. The homes are large, architecturally varied, and surrounded by trees the town is serious about protecting. A general contractor who treats this like a standard suburban build will stumble. We don’t. We know that a single heritage oak can dictate a building envelope, that exterior finishes and roof lines clear town design review before the county signs off the structure, and that sloped lots plus winter rain mean staging and scheduling have to be thought through in advance. Homeowners in Hillsborough call us because we speak that language fluently.
Our reputation in Hillsborough comes from doing the unglamorous work well: pulling permits through San Mateo County, walking inspections, coordinating arborists, and keeping schedules honest on lots where material access is genuinely hard. Property owners who have built with us once tend to bring us back for the next phase, whether that’s a kitchen remodel after a roof replacement or a detached ADU after a main-house renovation. Noel Figueroa leads every engagement the same way: scope it thoroughly before quoting, so the number you see is the number you build to.
We maintain a dedicated General Contractor in Hillsborough presence because the approval process here is specific and we want our team to stay current on town design review changes, county inspection procedures, and tree-protection requirements as they evolve. That familiarity shows up in cleaner permit submittals and fewer stalled inspections.
Styles & brands we work with
General Contractor Services in Hillsborough
General Contractor Services in Hillsborough mean managing the entire build as one integrated engagement rather than handing you a phone list of specialty subs. For a Hillsborough homeowner, that typically starts with a project that touches multiple systems: a kitchen remodel tied to a structural upgrade, a primary suite addition that triggers new roof lines, or a detached ADU where grading, utilities, and access all have to be solved together. Typical Hillsborough kitchen remodels run $14,000 to $45,000, while a full home addition lands between $45,000 and $130,000 depending on scope, site access, and the approvals your specific lot requires.
Whole-Home Renovation
A whole-home remodel on a Hillsborough estate often starts with the envelope, roof, siding, windows, and then moves inward. We scope it as one contract so the roof replacement, the window package, and the interior finishes are sequenced by one schedule rather than three separate crews guessing at each other’s timelines. The result is fewer gaps between trades and a cleaner pass through inspection.
Kitchen and Bath Remodeling
Kitchens in Hillsborough trend toward custom cabinetry, stone surfaces, and fixture packages that hold up to daily use. We source and install the same name-brand materials many homeowners would otherwise chase across multiple showrooms: Caesarstone or Cambria countertops, Kohler or Moen fixtures, and cabinetry from KraftMaid or Wellborn. Bathroom remodels run $9,000 to $28,000; small baths often land between $5,000 and $12,000. A walk-in shower installation typically falls between $4,500 and $12,000.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Hillsborough
Construction Company in Hillsborough carries a heavier load than elsewhere because the town is unincorporated, semi-rural, and design-review-driven. Most building permits here are issued through San Mateo County, while the town separately reviews roof lines, exterior finishes, and tree preservation. That means a Hillsborough project runs two parallel approval tracks, and we manage both. ADU construction in Hillsborough typically runs $90,000 to $220,000; a garage conversion ranges $30,000 to $80,000. Those numbers reflect the full scope: permits, site prep on sloping ground, material hauling, and the inspections that close it out.
Detached ADUs and Outbuildings
Through partnerships with Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab, we deliver prefab and site-built ADUs that meet Hillsborough’s design and siting standards. The county handles the structure; the town cares about how it looks and what trees it touches. We navigate both tracks from day one.
Site Work on Acreage Lots
Building on an acre or more in Hillsborough means grading, drainage, septic setbacks, and sometimes a well. We scope that site work before we quote, not after. Long material hauls and winter-rain site access are exactly the cost drivers most bids miss.
Trusted Brands We Service in Hillsborough
Hillsborough homeowners expect material choices that match the house, not a single-manufacturer upsell. We carry vetted relationships across more than 50 name-brand manufacturers, so you can choose premium or cost-conscious within the same product category and get a straight trade-off conversation from us. For a Hillsborough kitchen, that might mean Caesarstone counters with Kohler or Moen fixtures and a Blanco sink; for the exterior, James Hardie siding and GAF or CertainTeed roofing. Because we source and install, material decisions and labor stay in one place, and turnaround on parts and warranty support is faster for Hillsborough customers than chasing a separate vendor.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Hillsborough Homes
- Quoting before the arborist report lands. A single protected oak or redwood can force a change order that reshapes the footprint and staging. In Hillsborough, the tree report has to come first, and any bid written without it is a guess.
- Treating town design review and county permitting as one approval. They are not. Exterior finishes and roof lines must clear town design review before a shovel hits the ground, and the county signs the structure separately. Missing that split stalls projects for months.
- Underestimating site access on sloped, tree-heavy lots. Muddy winter access and long material hauls stretch schedules and surprise the draw schedule. We budget access and weather contingency into the quote up front.
- Ignoring drainage and grading on acreage. Hillsborough lots slope, trees drop debris, and winter rain finds every low spot. Poor grading under a new ADU or patio leads to water against the foundation, and that is a very expensive fix after the fact.
Pricing for General Contractor in Hillsborough, CA
Hillsborough is a high-end custom market, and pricing reflects the approval path, the lot conditions, and the material selections. Below are the ranges we quote most often. A kitchen remodel runs $14,000 to $45,000; a bathroom remodel $9,000 to $28,000; a home addition $45,000 to $130,000; and an ADU $90,000 to $220,000. A garage conversion typically lands between $30,000 and $80,000. Roof replacement ranges $8,000 to $20,000. A paver driveway runs $7,000 to $18,000. What moves the number highest in Hillsborough is not usually the finishes, it’s the site: arborist work, access, grading, and the time it takes to move through two approval tracks. Call (844) 384-3361 for a free estimate that accounts for all of it.
| Project Type | Hillsborough Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
We Also Serve Cities Near Hillsborough
Workshop Contractors serves Hillsborough and the surrounding Peninsula communities, including Burlingame, Millbrae, Highlands-Baywood Park, and San Mateo. If your property sits in the 94010 ZIP or just across a city line, the same team, the same contract, and the same single point of accountability applies. Call us and we’ll tell you straight whether your project falls in our service area.
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
For most construction, San Mateo County issues the building permit and schedules inspections, while the Town of Hillsborough separately reviews exterior design, roof lines, and tree preservation. A general contractor has to manage both tracks, and we do. Call (844) 384-3361 to have us confirm the specific path for your property.
A protected tree can dictate your building envelope, your staging area, and the type of foundation or grading allowed nearby. The arborist report sets the constraints before the bid is even written, and yes, that adds cost, but it also prevents a much larger change order later. We scope tree protection into the estimate up front.
Long material hauls, sloped access, grading, drainage, and sometimes septic or well setbacks all add cost on acreage. Winter rain makes site access muddy and slows excavation, and dry-season fire-safety and dust-control requirements add compliance steps. These are knowable costs, and we line them out before you sign.
Yes, in most cases. We have built detached ADUs, shops, and outbuildings in Hillsborough, including one behind an existing estate off Ralston Avenue where the lot is over an acre, sloping, and ringed with mature oaks. The arborist report and tree-protection plan set the building envelope before we quoted, and county permit and inspection sign-off closed it out. Call (844) 384-3361 and we’ll assess your lot.
A contractor who scopes the site, the approvals, and the access before quoting, and who writes the scope of work with allowances for the known variables like winter-rain site access and long material hauls. That’s how we bid Hillsborough work. Surprises still happen on old estates, but the expensive preventable ones should not. Estimates are free at (844) 384-3361.
Written by Noel Figueroa, Owner at Workshop Contractors, serving Hillsborough and the surrounding Peninsula communities.