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 Boulder Creek
Finding a General Contractor who understands mountain terrain takes more than a phone call. Boulder Creek sits in the Santa Cruz Mountains above the San Lorenzo Valley, and construction here means county permits, steep driveways, and drainage that a flatland builder never thinks about. We know the difference because we work it every week. Noel Carvalho leads our team, and we scope every project against the actual conditions on your lot before we ever hand you a number. If you’re planning a remodel, addition, or ADU in Boulder Creek, call (866) 472-1908 to schedule a free estimate.
Why San Bruno Construction Is Boulder Creek’s Preferred General Contractor Company
Boulder Creek homeowners don’t call us for a quick patch job. They call because the house is on a slope, the septic system sits right where the addition wants to go, and the county requires defensible-space clearing before the first inspection. Our reputation in the San Lorenzo Valley comes from quoting those conditions accurately the first time. We walk the lot, check the setbacks, look at the access road, and then we price the job. That’s why customers up and down Highway 9 and Highway 236 keep our number.
When you call, you reach someone who knows the area. Not a call center. We schedule site visits to Boulder Creek within a few business days, and our field team has worked on redwood-shaded lots, canyon driveways, and unincorporated parcels across 95006. Noel Carvalho oversees every estimate personally. You get one contractor, one contract, and one point of accountability from first conversation to final walkthrough.
Styles & brands we work with







Hire a General Contractor in Boulder Creek
Hire a General Contractor in Boulder Creek when the job involves more than one trade, and every trade has to work in sequence. A home addition on an acreage parcel pulls in foundation work, framing, roofing, windows, and often septic or well line adjustments. We coordinate all of it. That’s the difference between a general contractor and a specialty trade. One call, one schedule, one person who answers when the county inspector has a question.
Septic and Well Setbacks
Because almost every buildable lot in Boulder Creek is unincorporated and served by a well and septic system, the county, not the fire district or city, controls the permit timeline. Setbacks from those systems are often the first limit hit on an addition, not the property line. We pull the county records and measure before we design anything. That saves you months of redraws.
Hillside and Drainage Work
Steep terrain plus heavy winter rain on the Santa Cruz Mountains drives landslide and erosion risk everywhere in 95006. We build deeper gravel drainage beds and rot-resistant framing as standard practice on shaded slopes. A flat-lot contractor might skip it. In Boulder Creek, that’s the difference between a foundation that lasts and one that fails in five seasons.
General Contractor Services in Boulder Creek
General Contractor Services in Boulder Creek cover the full scope of residential work, from interior remodels to exterior improvements to prefab ADUs. We coordinate licensed trades, source materials from over 50 vetted brands, and manage the schedule so you don’t become a part-time project manager. A typical Boulder Creek kitchen remodel runs $14,000 to $45,000. A full home addition is $45,000 to $130,000. We quote with written line items so you see exactly where the money goes.
Detached ADUs, Shops, and Outbuildings
On acreage parcels, the question is rarely “can I build” but “what site work does it trigger.” A detached ADU in Boulder Creek runs $90,000 to $220,000 and usually requires septic evaluation, well capacity review, grading, and sometimes a new electrical service line. We scope that site work before we quote. We also handle detached shops and outbuildings where the same rules apply.

Garage Conversions and Room Additions
An attached room addition or garage conversion in Boulder Creek runs $30,000 to $80,000, with cost driven by foundation work on a slope, seismic retrofitting, and any fire-hardening requirements. The county will want structural drawings. We coordinate with the engineer and pull the permits so you don’t have to chase paperwork.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Boulder Creek
We don’t guess at materials. Our clients choose from a curated lineup that includes KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and plumbing fixtures from Kohler, Grohe, and Toto. That brand access matters more in Boulder Creek than in a flatland suburb. You need materials that hold up to mountain moisture, wildfire ember exposure, and long hauls on narrow roads. We order, stage, and install from brands engineered for that abuse. And we stock common replacement parts locally so a punch-list fix doesn’t stall for two weeks waiting on freight.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Boulder Creek Homes
- County permit surprises on additions. The county – not the fire district or city – controls the permit timeline in unincorporated Boulder Creek. Setbacks from wells and septic systems routinely cap an addition smaller than the property line would allow, and we’ve seen generic quotes fall apart because nobody checked the county records first.
- Equipment can’t reach the site. Narrow canyon roads and steep driveways limit what machinery can get in. A full-size dump truck often won’t clear a Boulder Creek driveway, so we stage loads and bring in smaller equipment. Quoting that wrong adds thousands in change orders.
- Shaded slopes rot foundations and decks fast. Homes along the San Lorenzo River canyon see persistent moisture and root intrusion from redwood and Douglas fir. Standard deck framing and shallow drainage fail quickly there. We specify rot-resistant framing and deeper drainage on every shaded-side build.
- Defensible-space clearing gets skipped in quotes. Boulder Creek sits in wildfire country. County and fire officials require defensible-space clearing before excavation on most projects. Skipping that line item is the fastest way to blow a budget and stall a permit.
Pricing for General Contractor in Boulder Creek, CA
Here are the ranges we regularly quote in the Boulder Creek market. These reflect county permitting, mountain access, and fire-hardened materials where required.
| Project | Typical Cost Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
What moves a project from the low end to the high end in Boulder Creek is almost always site work: septic and well setbacks, grading, drainage, defensible-space clearing, and access limits that require staged material deliveries. We price all of that in writing before work starts. Call (866) 472-1908 for a free estimate, and we’ll walk the property with you.
We Also Serve Cities Near Boulder Creek
Our crews work across the San Lorenzo Valley, so if you’re outside Boulder Creek proper, we can still help. We routinely take on projects in Brookdale, Ben Lomond, Lompico, and Felton. Many of those homes share the same county permitting rules and canyon access constraints we handle in Boulder Creek every month. Same team, same straight pricing, same single point of accountability.
Serving Boulder Creek, CA — Our Local Coverage Area
We’re based in the Boulder Creek 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 Boulder Creek
Yes. Boulder Creek is unincorporated Santa Cruz County, so the county issues your building permits, not a city. That timeline depends on plan review, septic evaluation if you’re near a leach field, and sometimes geologic review on steep parcels. We handle the submittal and the back-and-forth so you’re not calling the county yourself. Call (866) 472-1908 and we’ll check your parcel before you commit to a design.
We stage deliveries and use smaller equipment where a full-size truck won’t make the turn. That might mean a mini-excavator instead of a full-size, or a material drop at the road and a tracked carrier to the pad. We scope access during the site visit and price it before we quote. It’s standard practice for us in 95006.
Defensible-space clearing typically happens before excavation, and it means removing flammable vegetation within the required zones around the structure. We line up the crew and equipment so it doesn’t stall your permit or your schedule. The cost depends on lot size and slope, and we include it as a line item in every mountain quote.
Most Boulder Creek parcels can support a detached ADU, but the site work is often the real budget driver. You’ll likely need a septic system evaluation, well capacity check, grading and drainage plan, and a new electrical service run. A Boulder Creek ADU runs $90,000 to $220,000, and our quote breaks out the site work separately so you can see it. We partner with prefab builders like Abodu, Dvele, and Mighty Buildings when that’s the faster, cleaner route.
We scope the site in person, pull county records, check setbacks, and confirm access before we write the quote. Then we give you a written line-item estimate and fixed pricing on the agreed scope. Change orders happen when the county surprises you, or when the site has a condition nobody looked for. We work hard to find those conditions before you sign. Call (866) 472-1908 and we’ll walk the property with you.
Planning a project on a Boulder Creek acreage parcel? We rebuild decks, add shops, convert garages, and build ADUs across the San Lorenzo Valley. On a steep, redwood-shaded lot off Highway 236, we rebuilt a rotted deck and added a detached shop. We had to clear defensible space before excavation and use a mini-excavator because the canyon driveway couldn’t take a full-size dump truck. Our crew built a deeper gravel drainage bed and specified rot-resistant framing because the shaded slope stays wet long after the valley dries out. That’s what building in Boulder Creek actually takes. Call (866) 472-1908 for a free estimate, and we’ll help you plan it right.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Boulder Creek and the San Lorenzo Valley.