Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterRemodeling Company in Hillsborough, CA
Home remodeling in Hillsborough typically runs from $45,000 for focused whole-room renovations up to $130,000 for extensive whole-house transformations, with most projects falling between $65,000 and $95,000 depending on scope and material selections. We coordinate dispatch and scheduling from our San Francisco Bay Area office, with crews serving Hillsborough homes directly. Every project starts with a written price before any work begins, backed by our 365-Day Done Right Promise. Call (936) 259-2607 to schedule your free estimate.
Hillsborough presents a construction environment unlike anywhere else on the Peninsula. As one of California’s only incorporated cities with zero commercial zoning, every project here is high-end custom residential by definition. The city’s Architectural Advisory Committee reviews virtually all exterior modifications, adding mandatory design-approval steps that contractors in neighboring Burlingame or San Mateo never encounter. Meanwhile, the housing stock, dominated by 1920s – 1950s estate homes on multi-acre lots, demands both historic-sensitive craftsmanship and modern seismic resilience. We have built our Hillsborough practice around these realities: pre-application consultation with city planning staff, material palettes that satisfy AAC scrutiny, and crews experienced with lath-and-plaster, post-and-pier foundations, and the careful staging that mature landscaping requires.
Why Hillsborough Homes Are Different
Hillsborough’s position on the eastern foothills of the Coast Range shapes every construction decision we make. Heavy winter rainfall drains across clay-heavy soils on sloped lots, making drainage systems, retaining walls, and hillside grading critical and frequently failure-prone components. Seasonal soil expansion and contraction in these expansive Bay Area clays stresses flatwork, foundations, and hardscape in ways less common on the flat valley floors of neighboring cities.
The housing stock itself compounds these challenges. Large single-family estates, many in Spanish Colonial Revival, Mediterranean, Tudor Revival, or Colonial styles, feature original lath-and-plaster interiors, aging post-and-pier or concrete perimeter foundations, and mature landscaping that complicates excavation and staging. There are no apartments, condos, or commercial structures in the city; every project is bespoke residential work requiring individualized solutions.
Most distinctively, Hillsborough’s Architectural Advisory Committee requires design review, including elevations, material samples, and neighbor notification, for virtually all exterior modifications. Projects that would pull a straightforward permit in San Mateo can sit in AAC review for several months. Pre-application consultation with city planning staff is not optional; it is a prerequisite that separates experienced local builders from outsiders who underestimate the timeline.
Our Main Hillsborough Services
Most Hillsborough homeowners who call us start with one of these three projects, each shaped by the city’s unique construction environment.
General Contractor in Hillsborough
General contracting in Hillsborough means navigating the Architectural Advisory Committee’s design-review process as a core competency, not an afterthought. We handle pre-application meetings, elevation drawings, material sample submissions, and neighbor notification for projects ranging from exterior updates to full estate renovations. Our crews are background-checked and uniformed, and we pull all required permits and schedule inspections so nothing stalls at the city counter. General Contractor in Hillsborough covers our full general contracting approach.
Bathroom Remodeling in Hillsborough
Bathroom remodeling in Hillsborough often involves updating original 1920s – 1950s layouts while preserving period character that the Architectural Advisory Committee expects to see maintained. We specialize in reconfiguring compact historic bathrooms, replacing aging cast-iron plumbing, and installing moisture-resistant cement board substrate behind tile in homes where ventilation was never designed for modern steam showers. Every bathroom project gets a written price before demolition starts. Bathroom Remodeling in Hillsborough details our process.
Kitchen Remodeling in Hillsborough
Kitchen remodeling in Hillsborough means working within existing structural envelopes of historic estate homes, where load-bearing walls, ceiling heights, and original flooring materials constrain expansion options. We design around these realities with custom cabinetry from KraftMaid and Wellborn, countertops from Cambria, Silestone, and Caesarstone, and fixtures from Kohler and Moen that complement period architecture while delivering modern function. Kitchen Remodeling in Hillsborough explains our kitchen-specific approach.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Home Remodeling in Hillsborough
Home remodeling in Hillsborough addresses the unique challenge of updating 1920s – 1950s estate homes for modern living while satisfying the Architectural Advisory Committee’s strict design standards and protecting against the seismic and drainage realities of Coast Range foothill construction. We approach each project with pre-application consultation, written pricing before any work begins, and materials selected to pass both engineering review and aesthetic scrutiny. Our Home Remodeling hub explains our broader philosophy; this section covers what Hillsborough homeowners specifically need to know.
Whole House Remodel
Signs you need it
Your home still has original knob-and-tube wiring, a post-and-pier foundation with no seismic retrofit, a kitchen and bathrooms last updated in the 1970s, and rooms that do not flow for how your family lives now.
What it costs in Hillsborough
Whole house remodels in Hillsborough typically range from $45,000 to $130,000, with most comprehensive projects landing between $65,000 and $95,000 depending on whether we are preserving historic fabric or replacing systems entirely.
How we do it
We start with structural and geotechnical assessment, then sequence the work around AAC review timelines for exterior changes, phasing interior demolition so your family can remain in residence when possible.
Luxury Home Remodeling
Signs you need it
You are updating a multi-acre estate with original architectural details worth preserving, and you expect finishes and fixtures that match the home’s caliber, not off-the-shelf substitutions.
What it costs in Hillsborough
Luxury home remodeling in Hillsborough typically starts at $75,000 and can exceed $130,000 for extensive whole-house work with premium materials, custom millwork, and integrated smart-home systems.
How we do it
We collaborate with preservation consultants when needed, source materials from recognized trade brands with their own warranties, and assign dedicated project managers who understand both the Kingswell standard and Hillsborough’s review process.
What Home Remodeling Costs in Hillsborough
| Item | Typical range in Hillsborough |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
How long does a whole house remodel take in Hillsborough?
Most whole house remodels in Hillsborough take 4 to 8 months, with 6 to 10 weeks of that often consumed by Architectural Advisory Committee review for exterior modifications. We build this timeline into our written schedule from day one, so you are not surprised by a process that contractors in neighboring cities never encounter. Call (936) 259-2607 for a project-specific timeline with your free estimate.
Will the Architectural Advisory Committee reject my design?
The AAC rarely rejects designs outright, but they frequently request revisions to materials, colors, or massing that better respect Hillsborough’s architectural character. We avoid this by submitting thorough pre-application packages with material samples and contextual elevations, a step that adds weeks upfront but prevents months of revision cycles later. Call (936) 259-2607 and we will walk you through the AAC process for your specific project.
Brands We Service in Hillsborough
We install and service premium prefabricated and modular systems from Abodu, Cover, Dvele, and Mighty Buildings for Hillsborough homeowners exploring ADU and accessory structure options. Parts and warranty support are coordinated through our San Francisco Bay Area office with turnaround times that keep projects on schedule. See our brands for full specifications and compatibility details.
Pricing for Remodeling Company in Hillsborough, CA
| Service | Typical 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 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Paver Patio Installation | $3,500 – $11,000 |
Prices in Hillsborough trend toward the upper half of these ranges because of the Architectural Advisory Committee’s material-quality expectations, the structural complexity of 1920s – 1950s homes, and the specialized staging that multi-acre lots with mature landscaping require. The number we write down before work starts is the number on your invoice; that is The Kingswell Way.
Neighborhoods We Serve in Hillsborough
We work across Hillsborough’s full residential footprint, from the estate properties along Lakeview Canyon to the hillside homes above El Camino Real. Crews are dispatched from our San Francisco Bay Area office, with typical response for estimates within 24 to 48 hours across all neighborhoods.
- Carolands
- Trousdale Estates area
- Lakeview Canyon
- Skyfarm Drive vicinity
- Dean Road corridor
Service Area – Cities Near Hillsborough
Our crews serve the full Peninsula corridor, with Hillsborough as a core market. We also work in San Francisco, CA, San Jose, CA, Los Angeles, CA, and San Diego, CA through the Kingswell network of independently owned and operated locations. Each office maintains the same written-price, written-guarantee standard, with local knowledge of its own market’s permit and design-review requirements.
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 Remodeling Company in Hillsborough
Yes, we pull all required building permits and schedule all inspections for every Hillsborough project. We also manage Architectural Advisory Committee pre-application consultation and design review, which is separate from standard permitting and unfamiliar to most Peninsula contractors.
Start with a pre-application meeting with Hillsborough city planning staff, which we coordinate as part of our standard process. Bring elevation drawings, material samples, and a clear explanation of how your design respects the neighborhood’s architectural character. We prepare this package for you.
Often yes, though we typically phase the work so you have functional kitchen and bathroom access throughout. For extensive whole-house projects, we discuss temporary relocation options during your initial consultation so you can plan realistically.
Call (936) 259-2607 to schedule your free estimate. We will give you a written price before any work starts, a written 365-Day Done Right Promise, and a clear timeline that accounts for Hillsborough’s unique review process.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hillsborough Customers Say
"We'd been burned by a contractor before who disappeared halfway. Penhallow finished on time and stood behind everything. The written price gave me peace of mind the whole way."
- Simone Clarke"Gutted and redid the master bath. They gave me a schedule and actually stuck to it. Any time there was a choice to make they called me instead of guessing. Love the result."
- Kayla Benton"Kitchen and dining room opened up into one space. They were honest about which wall could come down and which couldn't, no sugarcoating. Dust was kept way down with plastic everywhere."
- Oscar Benitez