







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Remodeling Across Hillsborough
Home remodeling in Hillsborough, CA means working with a town that runs its own building department, plan checks its own permits, and sits on some of the most sloped, tree-heavy lots on the Peninsula. If you’re planning a kitchen, bath, or whole-home project here, the first thing to understand is that Hillsborough does not default to San Mateo County standards. The town has its own process, and it changes how every quote should be built. Mason Remodeling has navigated those Hillsborough-specific requirements on remodels throughout the town, from Chateau Drive to the neighborhoods off Ralston Avenue. Call (803) 680-2547 to get a written price before any work starts, and we’ll walk you through exactly what your project needs, including the permit path, the inspection schedule, and the real cost drivers on your specific lot.
Why Mason Remodeling Is Hillsborough’s Preferred Home Remodeling Company

Hillsborough homeowners tend to ask the same three questions before they’ll let a remodeler past the front door: who exactly is coming, what does the written price commit them to, and what happens if the work isn’t right. Those are the right questions, and they’re the ones Mason Remodeling answers in writing before a single tool is unpacked. Our crews are background-checked, identity-verified, and uniformed, and you’ll receive the name and photo of every technician before they arrive. At the door, they carry a photo ID badge. That’s The Threshold Standard, and it’s not a courtesy. It’s how we’ve operated since 2004 as part of the Threshold Group family of home-service companies.
We hold a strong local reputation across Hillsborough for delivering a written line-item price on every project, along with a written guarantee that spells out exactly what is covered and for how long: 365 days from the completion date. If something fails inside that year, we come back and make it right at no cost. No dispute process, no conditions. Hillsborough homeowners who’ve used our Home Remodeling team tell us the same thing: the price didn’t move once, and the people who showed up were the people in the photos.
Styles & brands we work with







Home Remodeling Contractor in Hillsborough
A Home Remodeling Contractor in Hillsborough handles the full scope of a project: demolition, structural changes, rough-in work, finishes, and the final walkthrough with the town inspector. The job starts long before demo day, though. On a Hillsborough remodel, the first real step is a written scope of work that accounts for your lot conditions, because many parcels here sit on slopes that trigger geotechnical and drainage review before the permit is even issued. That review can add structural upgrades to the project, and a good contractor prices them from the start, not as a surprise later. A typical Hillsborough kitchen remodel runs $14,000 – $45,000. A bathroom remodel runs $9,000 – $28,000. Those ranges assume the scope is written correctly up front.
Scope, Permits, and Written Pricing
On any Hillsborough remodel, we deliver a written price before work begins. That price includes the allowances, the finish schedule, and any drainage or structural line items the town will require on your lot. If the plan check comes back with changes, we write the change order in plain language and you sign before we proceed. Nothing moves without your approval.
Backing the Work in Writing
Every Mason Remodeling project carries a written guarantee. The terms state what’s covered, what’s excluded, and how long the coverage runs: 365 days from completion. We also provide a free return visit if a repair or installation fails within the covered period. That’s part of the written guarantee, not a favor we do when pressed.
Home Renovation in Hillsborough

A Home Renovation in Hillsborough is different from a quick refresh. Renovation here often means correcting what a 1960s or 1970s home has been hiding: out-of-level subfloors, undersized beams, or drainage paths that have changed as the lot settled. Those discoveries change the price, so a Hillsborough homeowner needs a renovation team that writes change orders clearly and never treats a load-bearing wall as a field decision. A small kitchen renovation in Hillsborough runs $9,000 – $20,000. A small bathroom renovation runs $5,000 – $12,000. A full home addition runs $45,000 – $130,000, and an ADU runs $90,000 – $220,000 depending on site work, foundation type, and the finish level.
What the Town Will Review
Hillsborough’s own building department conducts plan check and inspection scheduling for renovation work inside the town. That’s a local reality, not a county default. On sloped parcels, the town frequently requires geotechnical and drainage review before the remodel permit is issued. We build that review time and cost into the written scope from day one, so your calendar and your draw schedule reflect what the town will actually require.
Change Orders, Not Surprises
Every renovation hits conditions that weren’t visible during the estimate. The difference is how the contractor handles it. In Hillsborough, we write every change order in plain language with a fixed price, and you sign it before that work proceeds. A subfloor correction, a drainage upgrade, a new beam – each is a written line item, not a verbal add-on at the final invoice. That’s how a home renovation in Hillsborough stays on budget.
Trusted Brands We Service in Hillsborough
Hillsborough remodels call for specification-grade materials, and we work with brands that hold up to the town’s building standards and its aesthetic expectations. On kitchen projects, we regularly install KraftMaid and Wellborn cabinetry with Cambria, Silestone, or Caesarstone surfaces. For fixtures, we use Kohler, Moen, Toto, and Grohe. On structural and exterior work, we source GAF and CertainTeed roofing products. We keep common parts and finish samples available for Hillsborough customers so selections don’t stall the calendar, and we coordinate delivery around the town’s inspection schedule rather than asking the inspector to wait on a backsplash tile.
See the difference
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AfterCommon Home Remodeling Problems We See in Hillsborough Homes
- Sloped-lot drainage surprises. Many Hillsborough parcels sit on slopes where surface water moves toward the foundation. When we open a wall or floor, we often find drainage work that was never priced in a verbal quote. We write it into the scope before demo starts.
- Out-of-level subfloors in mid-century homes. The 1960s and 1970s homes common across Hillsborough often have subfloors that have moved over 50 years. Cabinets and tile set on an uneven surface fail early, so we correct the floor before finish work begins.
- Town-specific plan check timing. Hillsborough runs its own plan check and inspection scheduling, which moves differently than county-standard timing. A remodeler who assumes county pace will miss the calendar. We schedule around the town’s actual process.
- Unwritten change orders on structural discoveries. A load-bearing wall or a rotted rim joist is not a field decision. On Hillsborough remodels, we write those discoveries as fixed-price change orders and get your signature before the work proceeds.
Pricing for Home Remodeling in Hillsborough, CA
Hillsborough pricing reflects the town: sloped lots, older homes, and a municipal permit process that demands real documentation. The table below shows our current line-item ranges for the most common Hillsborough remodels. These are written-price ranges, not verbal ballparks. What moves a project within the range is the lot condition, the structural work the town requires, and the finish level you choose. A kitchen on a flat Chateau Drive parcel lands differently than one on a sloped lot off Marlborough Road, where drainage review and subfloor correction add scope. Call (803) 680-2547 for a free written estimate with your exact numbers.
| Project | Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
One thing to know about these ranges: they include the written scope, the permit drawings, the town-required inspections, and the written guarantee. They do not include verbal allowances that drift. On a sloped lot off Marlborough Road, we recently gutted a 1970s galley kitchen for a homeowner who wanted a KraftMaid cabinet layout with a Cambria island top. The subfloor was out of level by nearly an inch across the room, so we corrected it before cabinet set. The town inspector signed off on the roughed-in plumbing and electrical before we closed the walls. The punch list came down to two cabinet door adjustments and a backsplash grout touch-up, done in one return visit. That’s what a properly written Hillsborough scope looks like.
We Also Serve Cities Near Hillsborough
Mason Remodeling serves homeowners across the Peninsula and the broader Bay Area. In addition to Home Remodeling in Hillsborough, we work in Los Angeles, San Diego, San Jose, and San Francisco. If you’re in one of those cities and planning a remodel, the same written-price standard applies. Call (803) 680-2547 to schedule a free estimate.
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 Home Remodeling in Hillsborough
A cosmetic refresh like painting, cabinet door replacement, or fixture swaps without plumbing or electrical changes generally does not require a Hillsborough permit. But any remodel that moves a wall, changes the plumbing rough-in, or alters the electrical panel will require town plan check and inspection. Hillsborough runs its own building department, so the review is town-specific, not county-default. We tell every homeowner exactly which scope items trigger the permit before any work is scheduled. Call (803) 680-2547 and we’ll walk your project through the town’s permit path.
A Hillsborough kitchen remodel typically takes 8 – 14 weeks from signed scope to final inspection, and a primary bathroom remodel runs 4 – 8 weeks. The town-specific plan check and inspection scheduling adds time that a county-standard estimate won’t reflect. Sloped-lot drainage and geotechnical review can add another 2 – 4 weeks before demo begins. A whole-home remodel or addition runs 4 – 8 months depending on the structural scope. We build the calendar around Hillsborough’s actual process, not a generic timetable.
The price changes when the structure reveals something a verbal estimate never priced: an out-of-level subfloor, a rotted rim joist, or a drainage path the town requires us to address. On Hillsborough sloped lots, that drainage work is the most common change order. We write every change as a fixed-price line item and get your signature before that work proceeds. The price never moves without a written change order, and the original written scope stands as the baseline. Call (803) 680-2547 to get your written baseline.
Yes, most Hillsborough homeowners live in the house during a kitchen remodel, though the kitchen itself is out of service for the duration. We set up a temporary kitchen area with a refrigerator, microwave, and sink access where possible, and we seal the work zone to keep dust contained to the construction area. On larger whole-home remodels or additions, living in place is usually not viable once the structure opens to the elements. We’ll tell you plainly at the written-scope stage which projects allow it.
We install specification-grade materials from KraftMaid and Wellborn for cabinetry, Cambria, Silestone, and Caesarstone for surfaces, and Kohler, Moen, Toto, and Grohe for fixtures. On roofing, we use GAF and CertainTeed. These are professional-grade products selected to hold up under Hillsborough’s building standards and the town’s inspection process. We coordinate material delivery around the inspection calendar so the inspector never waits on a finish selection. Call (803) 680-2547 to discuss finish options for your Hillsborough project.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Hillsborough since 2004.










