Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Cupertino
Hiring a General Contractor in Cupertino means finding someone who understands the difference between a standard 1960s ranch on De Anza Boulevard and a large acreage parcel out near Regnart Road. Those two projects have almost nothing in common when it comes to permits, site work, and pricing. We’re Penhallow Remodeling San Jose, and our crews work throughout Cupertino on kitchen remodels, bathroom remodels, whole-home builds, and room additions. Trevor Nash leads our team, and he still walks every Cupertino job site before we put a written number in front of you. Call (669) 274-2362 for a free estimate, and we’ll send someone who knows the local permit counter, not just a sales script.
Why Penhallow Remodeling San Jose Is Cupertino’s Preferred General Contractor Company
Cupertino homeowners tend to ask the same three questions before signing anything: what does it cost, when will you show up, and what happens if something fails. We answer all three in writing before work starts. That’s the Kingswell standard, and it’s been the rule since 2004. Every project gets a written price, a defined arrival window, and the 365-Day Done Right Promise. If something isn’t right inside that year, we come back and fix it at no charge. You don’t pay a service call, and you don’t chase anyone down.
We also know the local building landscape. Cupertino has a lot of homes built between the 1950s and 1970s with wood-frame construction and slab foundations. Many of them have been remodeled once or twice already, which means we’re often working around previous work that wasn’t permitted or wasn’t done to current seismic code. Our technicians are background-checked and uniformed, and a live person answers our phones 24/7. When you call at 9:30 pm to ask about a permit question, you get a person, not a voicemail.
Styles & brands we work with
Licensed General Contractor in Cupertino
A Licensed General Contractor in Cupertino is the professional who pulls permits, schedules inspections, coordinates subcontractors, and carries the liability for the whole job. For Cupertino homeowners, especially those on larger lots in the western and southern edges of the city, that role is more complicated than it looks. Many of those parcels sit in unincorporated Santa Clara County, which means county permits, county septic rules, and county well setback requirements, not city of Cupertino standards. If your contractor doesn’t know the difference, you find out after the plans are drawn and the county rejects them.
What the job involves
We handle the full scope: structural work, framing, electrical, plumbing, drywall, finishes, and final inspections. On a Cupertino acreage lot, that also means grading, drainage, utility runs, septic and well mapping, and sometimes road access improvements before a single wall goes up. We scope all of that before we quote, so the price you see is the price you get, with any allowances documented in writing.
What it costs
A home addition in Cupertino runs $45,000 to $130,000 depending on size and site conditions. A detached ADU typically lands between $90,000 and $220,000 once utilities, foundation, and county requirements are included. We give you a written line-item estimate, not a range that floats. The number on day one is the number on the invoice.
Residential General Contractor in Cupertino
A Residential General Contractor in Cupertino handles single-family homes, not commercial buildings or multi-unit apartment blocks. Most of our Cupertino work falls into three buckets: kitchen remodels, bathroom remodels, and whole-home or large-scale additions. In neighborhoods like Monta Vista and Seven Springs, we see a lot of older ranch-style homes being gutted down to the studs and expanded, often with mature oak trees on the lot that can’t be removed and setback rules that vary from parcel to parcel. That changes how we design additions and where we can put a new foundation.
Local site conditions
Cupertino’s mild Mediterranean climate means we can pour concrete and frame year-round, but it also means seasonal moisture gets into wood framing, especially around windows and door thresholds. We routinely find dry rot in older Cupertino homes that only becomes visible during demolition. We quote for that possibility up front so it doesn’t become a surprise change order.
Buildable scope
We also handle detached shops, garages, and ADUs on larger Cupertino parcels, which is a different ballgame from a standard kitchen remodel. County setback rules often dictate where an outbuilding can sit relative to a septic leach field or a private well. We walk the site, measure the setbacks, and confirm what’s buildable before we talk price.
Trusted Brands We Service in Cupertino
We install materials from brands that back their own warranties, so your protection doesn’t rely on our word alone. For Cupertino projects we regularly use Cambria quartz countertops, which carry a lifetime warranty alongside our 365-Day Done Right Promise, Kohler fixtures in bathrooms and kitchens, and James Hardie siding for exterior work on additions and ADUs. We also stock common replacement parts locally so we’re not waiting on a warehouse across the state when a hinge or a drawer slide needs swapping. That keeps small fixes from turning into week-long delays.
See the difference
Before
After
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After
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AfterCommon General Contractor Problems We See in Cupertino Homes
- County permit surprises on acreage. A lot of Cupertino homeowners assume the city handles everything. If your parcel is in unincorporated Santa Clara County, it doesn’t, and a contractor who quotes it like a standard city lot has already underbid the job.
- Septic and well setback conflicts. We’ve seen plans for a detached shop get redrawn because the county required 100 feet between an outbuilding and a private well. That’s a planning conversation, not a construction conversation, and it has to happen before permits are pulled.
- Access and haul costs on long driveways. Some Cupertino acreage homes sit 400 feet or more off the road behind gravel drives. Concrete trucks, truss deliveries, and grading equipment all need to get in and out, and that cost is real. It belongs in the estimate, not in a surprise invoice.
- Dry rot hiding behind old siding. Homes built in the 1960s and 1970s often have moisture intrusion around windows and rim joists. It’s not visible until demo starts, and if your contractor didn’t include a flag for it, you’re paying extra mid-job.
Pricing for General Contractor in Cupertino, CA
Here’s what we tell Cupertino homeowners before they sign anything. A kitchen remodel in Cupertino runs $14,000 to $45,000 depending on cabinet line, countertop material, and whether we’re moving plumbing or walls. A garage conversion runs $30,000 to $80,000. An ADU starts around $90,000 and can reach $220,000 once county septic, grading, and utility work is factored in. A full home addition runs $45,000 to $130,000. What moves the number up on Cupertino acreage? Long utility runs, engineered septic upgrades, foundation work on sloped lots, and county-required mudsill and shear wall retrofits. We put every one of those items in writing before work starts. Call (669) 274-2362 and we’ll give you a free, itemized estimate.
Here are the price ranges for the most common Cupertino acreage projects we scope:
| Project | Price Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Garage Conversion | $30,000 – $80,000 |
We Also Serve Cities Near Cupertino
Our crews work throughout the South Bay and Peninsula. If you’re in Mountain View, Santa Clara, Los Altos, or Los Gatos, we provide the same written price and 365-Day Done Right Promise we bring to every General Contractor in Cupertino job. Dispatch and scheduling run out of our San Francisco Bay Area office, and our local crews know the permit offices and site conditions in each of these cities.
Serving Cupertino, CA - Our Local Coverage Area
We’re based in the Cupertino 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 Cupertino
It depends on your parcel. If your property is within Cupertino city limits, you pull a city of Cupertino permit through their planning and building department. If your lot is in unincorporated Santa Clara County, which covers many larger parcels on the western and southern edges of Cupertino, you’ll go through Santa Clara County’s planning and permitting process instead. The county path adds extra layers for septic and well setbacks, and we map all of that before we draw plans. Call (669) 274-2362 and we’ll confirm which jurisdiction applies to your address.
Setback distances vary by county code and by the specific well and leach field location on your lot, but typical minimums run 50 to 100 feet for wells and 10 to 20 feet for leach fields depending on soil type and system design. We measure the actual distances on site and factor any needed relocation into the written estimate. Guessing at these numbers is how budgets blow up.
Utility runs, grading, and driveway work add real money to an acreage build. Trenching for electric, water, and sometimes gas can run $10,000 to $35,000 or more depending on distance and terrain. A gravel driveway from a main road to a build site 300 to 400 feet back can add another $15,000 to $40,000 once road base, culverts, and drainage are included. We scope these costs before quoting so the estimate reflects the actual site. Call (669) 274-2362 for a free walkthrough.
Yes, we do that regularly. On a large lot off Regnart Road, our crew converted an old ranch into a full custom home with a detached shop and ADU under one fixed scope of work. We mapped the well and leach field for setbacks, scoped the county permit path, and hauled every beam and roof truss up a 400-foot gravel drive before the first rough-in inspection. When the county required an extra 10 feet between shop and well, it was a documented change order, not a surprise. You pick up the phone and call (669) 274-2362 for an estimate on your parcel.
Grading and drainage can add $10,000 to $40,000 to a Cupertino acreage project depending on slope, soil type, and whether you need retaining walls or engineered swales. Open lots collect water differently than established neighborhoods, and county reviewers often require drainage plans that route runoff away from septic systems and neighboring parcels. We include that engineering in the estimate up front, so it’s a line item you approve, not a change order you discover later.
Written by Trevor Nash, Owner at Penhallow Remodeling San Jose, serving Cupertino and the South Bay.
