







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Renovation Across Hillsborough
Home renovation in Hillsborough costs $9,000 to $450,000 depending on scope, with most kitchens landing between $14,000 and $45,000 and bathrooms between $9,000 and $28,000. Sawyer Remodeling serves Hillsborough homeowners who want a written price before work starts and a crew that shows up when they say they will. Call (254) 272-5876 for a free estimate on your project, whether it’s a full kitchen gut or a garage conversion off Skyline Boulevard.
Hillsborough isn’t a town where you can run a remodel by winging it. The streets wind, the driveways climb, and the houses are old enough that every wall opening deserves a second look. We know the difference between a flat lot near Burlingame and a hillside property off Black Mountain Road, and we price accordingly, so your scope of work matches what actually happens on site.
Why Sawyer Remodeling Is Hillsborough’s Preferred Home Renovation Company

We built our reputation in Hillsborough on one thing: the number on the invoice matches the number you approved. That’s the whole point of The Relay Visibility Guarantee. Before a single tool gets picked up, you get a written price, a live arrival time for the crew, and photo updates before and after every major phase. No four-hour windows. No phone tag. No “we’ll have to see what the slab yard charges.” Just a scope of work in writing.
Luca Romano leads our Hillsborough projects and has walked enough of this town’s older homes to know what hides behind 1950s plaster. Background-checked, uniformed technicians arrive in marked vehicles, and you’ll know who is walking into your house before they ring the bell. Every project also carries our 365-Day Done Right Promise. If it’s not done right, we make it right. That’s in writing on every job, not something you have to ask for.
Homeowners across Hillsborough call us because they’ve been burned by contractors who quote low, surprise at the invoice, and disappear mid-project. We don’t do that. We can’t. Our entire model depends on keeping you informed at every step, from the first walkthrough to the final inspection sign-off.
Styles & brands we work with







Home Renovation Contractors in Hillsborough
Home Renovation Contractors in Hillsborough do more than swing hammers. A real contractor in this town handles the permit package with the Town of Hillsborough Building Division, coordinates structural engineering when a wall comes down, schedules inspections, and manages the material flow so a concrete truck can actually reach the pour without blocking a neighbor’s only way out. That coordination is the job. The carpentry is only part of it.
When a Hillsborough homeowner needs a contractor, it’s usually because the project involves structural change: a load-bearing wall opening, a home addition, an ADU, or a kitchen that’s getting gutted to the studs. These are not weekend projects. A kitchen remodel in Hillsborough runs $14,000 to $45,000. A home addition starts around $45,000 and can reach $130,000 depending on foundation work and hillside engineering.
When the footprint changes
Hillsborough lots are irregular. A flat rectangle is rare. If your addition or ADU requires retaining walls, grading, or engineered foundations, that’s a different permit than a simple interior remodel. We handle both, but we’re honest about which one you’re in. An ADU in Hillsborough typically runs $90,000 to $220,000, and the site conditions on a hillside lot drive the number more than anything else.
When the footprint stays
Keeping the original footprint is the single best way to keep a Hillsborough remodel predictable. On a hillside lot off Black Mountain Road, our crew gutted a 1970s galley kitchen down to the studs, found a soft subfloor under the sink, and rebuilt the rough-in before setting KraftMaid cabinets, a Cambria island top, and a Moen pull-down faucet. The homeowner kept the original layout, which kept the scope of work and the draw schedule stable from day one. A small kitchen remodel like that starts at $9,000 and rarely exceeds $20,000 when the walls don’t move.
Home Renovators in Hillsborough

Home Renovators in Hillsborough work inside the existing envelope: kitchens, bathrooms, laundry rooms, garages, primary suites. These are the projects where the house keeps its bones but gets new life. A bathroom remodel in Hillsborough runs $9,000 to $28,000. A small bathroom, where you’re not moving plumbing, lands between $5,000 and $12,000.
The distinction matters because renovators live or die on rough-in work. Plumbing that hasn’t moved since the Eisenhower administration doesn’t always cooperate. We open walls with the expectation that something will need fixing, and we write that risk into the scope rather than pretending it doesn’t exist. That’s why our estimates include line items for rough-in rebuilds when the house is old enough to warrant it.
Kitchens that work harder
Hillsborough kitchens skew toward the high end, but that doesn’t mean every remodel needs a six-figure budget. The honest range for a kitchen remodel in this town is $14,000 to $45,000. Where you land depends on cabinet grade, countertop material, and whether you’re reconfiguring plumbing and electrical. We specify KraftMaid for cabinetry and Cambria or Silestone for tops when the budget allows, and we show you the price difference in writing before you commit.
Bathrooms that seal properly
Hillsborough’s fog and damp winters mean bathroom waterproofing isn’t optional. We use Schluter edge trim, the metal strip that waterproofs where your tile meets the floor, on every wet area. A walk-in shower installation runs $4,500 to $12,000, and a tub-to-shower conversion runs $3,500 to $10,000. Those numbers include the waterproofing steps that keep mold out of your framing.
Trusted Brands We Service in Hillsborough
We stock and install parts from brands Hillsborough homeowners ask for by name: Cambria and Silestone countertops, Kohler and Moen fixtures, KraftMaid cabinetry, GAF roofing, and James Hardie siding. Because we work these brands regularly, we can often turn around material orders for Hillsborough jobs faster than a contractor who’s calling a supply house for the first time. We also service factory-built ADU systems from Abodu, Cover, and Dvele when a Hillsborough homeowner wants a pre-engineered unit delivered to a tricky lot. When the brand has a manufacturer warranty, the install sits on top of it, and our 365-Day Done Right Promise covers the workmanship either way.
See the difference
Before
After
Before
After
Before
AfterCommon Home Renovation Problems We See in Hillsborough Homes
- Load-bearing surprises behind plaster. Hillsborough’s older housing stock hides structural conditions that don’t show up on a walkthrough. A “simple” wall opening turns into engineering, revised permits, and a stalled inspection sign-off. We open with that expectation and price a contingency for it.
- Material staging on winding lanes. Hillsborough has no grid of through-streets. It’s a town of winding, unconnected residential lanes, so every remodel here lives or dies on where the crew stages materials, where the dumpster legally sits, and how a concrete truck reaches the pour without blocking a neighbor’s only way out. Crews that priced mobilization as a flat fee eat the difference or hand the homeowner a surprise. We line-item it instead.
- Long private driveways and debris hauling. Many Hillsborough properties have driveways that stretch hundreds of feet. Debris bins, concrete buggies, and material deliveries all feel that distance. It’s a real line item, and we show it as one.
- Allowance overages on slabs. Homeowners approve a design drawing but never a written scope of work, so allowance overages on Cambria and Silestone slabs surface mid-job as an argument instead of a change order. We write the slab allowance into the scope with a signed change order process so nobody argues at invoice time.
Pricing for Home Renovation in Hillsborough, CA
Here’s what you can expect to pay for the most common renovation projects in Hillsborough. These ranges come from our work in this specific market, and they reflect the real local constraints: narrow unconnected lanes, long private driveways, and older hillside housing stock.
| Project | Price Range in Hillsborough |
|---|---|
| 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 |
What moves the number most in Hillsborough is site access. A kitchen remodel on a flat street off El Cerrito Avenue costs less to stage than the same kitchen up a winding driveway off Skyline. We walk the property before we quote, so the staging and hauling numbers you see are real, not a guess. Call (254) 272-5876 for a free estimate. The price you approve is the price you pay.
We Also Serve Cities Near Hillsborough
Our Home Renovation team works throughout the Bay Area, and we regularly serve homeowners in Los Angeles, San Diego, San Jose, and San Francisco. If you’re in Hillsborough or any neighboring community, our Home Renovation in Hillsborough process is the same: written price first, live updates throughout, and a full year of accountability after the project closes.
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 Renovation in Hillsborough
It includes a scoped walkthrough, written line-item pricing, a signed scope of work, permit drawings if walls or plumbing move, demolition, rough-in work (framing, electrical, plumbing), inspections, drywall and paint, cabinet and countertop installation, fixture installation, and a final walkthrough with photo documentation. The whole process takes 4 to 8 weeks for a typical kitchen in Hillsborough. The permit timeline with the Town of Hillsborough Building Division adds 2 to 4 weeks up front. Call (254) 272-5876 and we’ll walk you through the exact sequence for your house.
Because Hillsborough’s building officials inspect structural, electrical, and plumbing work even when it’s behind a wall, and unpermitted work becomes a problem when you sell. Hillsborough’s older housing stock hides load-bearing conditions behind plaster, so a wall opening that looked simple can require engineering. Permits protect the work and your resale value. We pull permits on every job that requires them, and we schedule the inspections so the project doesn’t stall.
Three things, mostly: load-bearing surprises behind plaster that require engineering and revised permits, subfloor or rough-in damage found after demolition, and material staging costs on lots where the driveway or lane access is tight. We price all three as line items before work starts, not as surprises after. A signed change order covers anything new. Nothing gets added to your invoice without your written approval first.
No. Planned renovation is not same-day work and we don’t pretend otherwise. A small bathroom remodel takes 2 to 3 weeks. A kitchen takes 4 to 8 weeks. A home addition or ADU takes 3 to 6 months or longer depending on foundation work, hillside engineering, and the permit timeline. We give you a calendar in writing before we start, and we update it every week with photos. If you need a real number for your project, call (254) 272-5876 and we’ll give you a realistic timeline based on your scope.
A written scope of work with line-item pricing and a signed change order process. That’s it. Disputes happen when the drawing says one thing and the invoice says another. Our written price before any work starts, our 365-Day Done Right Promise, and our requirement that every change be approved in writing before it’s performed protect you from the most common Hillsborough remodel failures we’ve seen. And if something isn’t done right, we make it right. That’s in writing too.
Written by Luca Romano, Owner at Sawyer Remodeling, serving Hillsborough since our founding in 2005.










