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
Finding a general contractor in Hillsborough who understands the town’s design review process, its clay hillsides, and its older estate homes is harder than it should be. Most contractors work the whole peninsula and treat Hillsborough like any other job site. We don’t. Millwright Builders has spent years working Hillsborough’s narrow, tree-canopied roads and its Planning Department, and we’ve learned what gets approved, what stalls, and what costs homeowners money they didn’t plan to spend. If you’re planning a kitchen remodel, a bathroom overhaul, a room addition, or an ADU in Hillsborough, call (866) 925-0334 for a free estimate from a contractor who knows this town’s rules as well as its homes.
Why Millwright Builders Is Hillsborough’s Preferred General Contractor Company
Hillsborough homeowners tend to ask the same first question: “Have you worked here before?” The answer matters because this town is unlike anywhere else on the peninsula. A general contractor who has never pulled a Hillsborough permit doesn’t know that even a bathroom refresh in a 1990s home can require Planning Department sign-off. We do know, and we sequence work around it.
Noel Castañeda leads our team with a simple operating rule: we specify the brand, explain the trade-off, and stand behind the install. That means when a Hillsborough client asks about Cambria versus Caesarstone for a kitchen island, they get a real answer about performance and warranty, not a shrug. When they ask whether their builder-grade cabinets can be upgraded without voiding a builder warranty, we check the warranty’s approved-vendor list before we quote anything.
Our clients in Hillsborough call us because they don’t want to manage five subcontractors. One contract covers interior remodeling, roofing, windows and doors, fencing, and hardscape. That’s what a true general contractor does. Your renovation shouldn’t require you to become a project manager.
Styles & brands we work with
Residential General Contractor in Hillsborough
A residential general contractor in Hillsborough handles the work most homeowners don’t have the time or expertise to coordinate themselves: structural changes, finish carpentry, plumbing rough-ins, electrical work, tile, countertops, and the permit paperwork that ties it all together. In Hillsborough specifically, that paperwork is the difference between a smooth project and one that sits idle for months. The town’s design review applies to nearly every exterior change and many interior ones, and we’ve learned how to package plans so they move through without unnecessary delays. A typical kitchen remodel in Hillsborough runs $14,000 – $45,000, a bathroom remodel $9,000 – $28,000, and a full home addition $45,000 – $130,000.
Builder-Grade Upgrades Done Right
Hillsborough’s newer and master-planned homes, especially those built in the 1990s and early 2000s, came with builder-grade finishes that look tired now. The first upgrades homeowners make are usually kitchens and bathrooms: cabinets, countertops, backsplashes, fixtures. What most people don’t realize is that Hillsborough’s design review can reach into those rooms if the work touches plumbing or structural walls. We sequence warranty-sensitive work before submitting plans so your project doesn’t stall.
Warranty-Safe Renovations
Working inside a builder warranty without voiding it requires using licensed trades and matching original specs. We’ve done this across Hillsborough, including in the Skyfarm neighborhood, where a 1998 builder-grade home had original KraftMaid cabinets with failing hinges and a laminate countertop. We replaced the cabinet boxes and hardware while preserving the layout, upgraded to a Cambria quartz top, and kept all work inside the builder warranty by using licensed trades and matching original specs, finishing with a punch list that included new Moen fixtures and a Blanco sink. That’s the difference between renovating and replacing.
Hire a General Contractor in Hillsborough
When you hire a general contractor in Hillsborough, you’re hiring someone to absorb the coordination burden: permits, design review, material lead times, trade scheduling, and the inevitable surprises that come with older homes on larger lots. The alternative is managing an electrician, a plumber, a tile setter, a countertop fabricator, and a painter yourself, and hoping the town doesn’t kick back your plans. Most Hillsborough homeowners we meet have already tried that once.
Our full general contracting licensure means one license and one point of accountability across all trades on a project. We pull permits, we pass inspections, and we don’t hand you a change order for something we should have caught in the estimate. Verify current license status at time of hire, but know this: we’ve built our reputation in Hillsborough on being the contractor who answers the phone and shows up.
From Roofline to Back Patio
Millwright Builders works across the full built environment of a home. Roofing, windows and doors, fencing, hardscape, and the interior finishes that tie it together: from the roofline to the back patio, one contractor, one conversation. That scope matters in Hillsborough, where a single property might need a roof replacement, a paver driveway, and a kitchen remodel inside two years. We price it fairly and coordinate it honestly.
ADU and Prefab Construction
Hillsborough’s large lots make ADUs a natural fit. We work with modern ADU brands including Abodu, Dvele, Mighty Buildings, and Boxabl, which most conventional remodelers can’t offer. An ADU in Hillsborough runs $90,000 – $220,000 depending on site work, utility connections, and design review requirements. We handle all of it under one contract.
Trusted Brands We Service in Hillsborough
We don’t install whatever ships first. We’ve vetted 50+ manufacturers across cabinetry, countertops, roofing, windows, doors, plumbing fixtures, fencing, hardscape, and prefab structures. For Hillsborough homes, that means access to KraftMaid and Wellborn cabinetry, Cambria and Caesarstone quartz, GAF and Owens Corning roofing, James Hardie siding, and PGT and Therma-Tru windows. On the hardscape side, we source from Belgard, Unilock, and Techo-Bloc, and we’re authorized to install premium countertop surfaces that carry their own manufacturer warranties. Roofing partnerships with Atlas, IKO, and Tamko mean Hillsborough homeowners get warranty-backed shingle options matched to the town’s wildfire-risk realities. Every product we install, we’ve vetted, not just stocked.
Common General Contractor Problems We See in Hillsborough Homes
- Builder warranty surprises. Starting cosmetic upgrades like cabinet or countertop replacement without checking the builder warranty’s approved-vendor list can void coverage on adjacent systems. We check before we quote.
- Design review timelines. Underestimating design review timelines for exterior changes, even a new paver driveway or fence, can stall a project for months if submitted without complete plans. We package plans the way the Planning Department expects to see them.
- Clay soil and drainage. Ignoring the clay soil and drainage requirements when adding hardscape or room additions leads to foundation issues that fail inspection sign-off. Hillsborough’s winter rains make slope stability central to every grading plan.
- Narrow road staging. On Hillsborough’s narrow, tree-canopied roads, construction staging and material deliveries often require traffic control and advance coordination with the town. We handle that coordination so you don’t have to.
See the difference
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AfterPricing for General Contractor in Hillsborough, CA
Hillsborough pricing reflects the town’s custom-home stock, its strict design review, and its access challenges. Here is what we typically see:
| Project | Typical Range in Hillsborough |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Paver Driveway Installation | $7,000 – $18,000 |
Material choices move these numbers more than anything else. A KraftMaid cabinet line costs less than Wellborn; a Cambria quartz countertop costs more than a mid-tier laminate. Hillsborough’s permitting and design review fees add a few hundred to a few thousand dollars depending on scope, and we include those in our written estimates. Fixed pricing, no change orders for work we priced correctly, and free estimates. Call (866) 925-0334 for an exact quote.
We Also Serve Cities Near Hillsborough
While this page is written for Hillsborough homeowners, our team serves the surrounding peninsula communities too. If you’re in Burlingame, Millbrae, Highlands-Baywood Park, or San Mateo, we bring the same multi-trade general contracting scope. See our General Contractor service page for details on full-scope residential work.
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
Design review can affect a bathroom refresh or kitchen upgrade in Hillsborough if the work touches plumbing, structural walls, or any exterior element, and it can add weeks to the timeline. We sequence warranty-sensitive work before submitting plans so permitting does not stall the project, and we handle all correspondence with the Planning Department. Call (866) 925-0334 if you’re unsure whether your project triggers review, estimates are free.
Replacing builder-grade cabinets or countertops can void parts of your builder warranty if you use unlicensed trades or products outside the warranty’s approved-vendor list. We check the warranty’s approved-vendor list before quoting anything, and we work with licensed trades who match original specs where the warranty requires it. Call (866) 925-0334 for a warranty-safe estimate.
The most common first upgrades in Hillsborough’s newer and master-planned homes are kitchens and primary bathrooms: cabinet replacement or refacing, countertop upgrades, new backsplashes, and fixture changes, followed by paver driveways and hardscape. A kitchen remodel ranges $14,000 – $45,000, a bathroom remodel $9,000 – $28,000, and a paver driveway $7,000 – $18,000 in Hillsborough.
We pull permits for every bathroom remodel in Hillsborough that requires them, and we coordinate all inspections with the town. Bathroom remodels in Hillsborough run $9,000 – $28,000, and the permit process is included in our written estimate. Call (866) 925-0334 to hear how we’d handle your specific project.
A kitchen remodel in a 1990s Hillsborough home typically runs $14,000 – $45,000, and the main variables are cabinet quality, countertop material, and whether you’re changing the layout or preserving it. Most 1990s homes in Hillsborough have builder-grade KraftMaid or similar cabinets with failing hinges, and we often replace boxes and hardware while keeping the layout to control cost. Call (866) 925-0334 for a free estimate on your kitchen.
Contact Millwright Builders for Your Hillsborough Project
Hillsborough is a low-density town of large-lot estates where nearly every construction project is a custom home or major remodel requiring design review, geotechnical scrutiny of the clay hillsides, and fire-resistant detailing. Not production building. That’s the reality we build to. If you’re planning a home addition, an ADU, a kitchen or bath remodel, or a full exterior replacement in Hillsborough, call Noel Castañeda and the Millwright Builders team at (866) 925-0334 for a free estimate. Built to the material’s standard, not just to code.
Written by Noel Castañeda, Owner at Millwright Builders, serving Hillsborough and the surrounding peninsula communities.