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 Lexington Hills
Hiring a General Contractor in Lexington Hills means finding someone who understands that your project runs on county rules, not city ones. A typical whole-home remodel here moves at a different pace than a Los Gatos in-fill job, and the difference is almost always the site: the slope, the driveway, the septic location, the fire-safe setbacks. Millwright Builders is led by Noel Castañeda, and our team scopes every Lexington Hills job with those realities on the table from the first walkthrough. The free estimate is the right place to start: call (866) 925-0334 and we’ll talk through your property before we talk numbers.
Why Millwright Builders Is Lexington Hills’s Preferred General Contractor Company
Most contractors can build a wall. Few can tell you, before you sign, that the concrete truck won’t make your hairpin turn off Aldercroft Heights Road and that the county will want a geotech report on the pad before the foundation inspection. That’s what we bring to Lexington Hills. Every quote we write for this area includes a site-access review and a permit-path conversation, because those two items change schedules more than framing weather ever does.
We work with homeowners from the 95031 ZIP and the smaller pockets along the Los Gatos and Summit Road corridors. The homes up here aren’t tract-tight and uniform. They’re 1940s cabins, 1970s custom builds, and a growing number of rebuilds that have to meet current wildland-urban interface codes. We’ve scoped additions where the well setback redrew the whole envelope. We’ve priced ADUs where pump-truck access was a line item before the first footing was poured. That local experience is why Lexington Hills homeowners keep calling us back for their second and third projects.
Noel Castañeda built Millwright Builders around a simple rule: one contract, one accountable team, from the roof deck down to the back patio. No homeowner should have to play project manager between a roofer, a plumber, and a concrete crew. We run the whole scope ourselves.
Styles & brands we work with







General Contractor Services in Lexington Hills
General Contractor Services in Lexington Hills cover the full building envelope: structural renovation, roofing, windows and doors, hardscape, and additions, all under one contract. When a Lexington Hills homeowner is planning a kitchen overhaul, a second-story addition, or a detached shop, we start with the site, not the blueprint. A home addition in Lexington Hills typically runs $45,000 – $130,000 depending on slope, access, and how much site work the county requires. An ADU construction project lands between $90,000 and $220,000, and a garage conversion falls between $30,000 and $80,000. We pull permits, we pull county records on your septic and well, and we price the job so the number on the contract matches the number at close-out.
Permit and Site Scoping
Before we quote a Lexington Hills build, we walk the property with the same eyes a county reviewer will use. We check access routes for concrete trucks and material delivery, we locate the well and leach field, and we flag any slope that will need a drainage plan or defensible-space work under Cal Fire’s WUI rules. That pre-work keeps the price honest.

Turnkey Coordination
We manage every trade on the job: foundation, framing, roofing, plumbing, electrical, finishes. If you’re adding a kitchen and a bath and replacing the roof, you get one schedule and one point of contact. We specify every brand up front, explain the trade-offs, and stand behind the install.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
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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.
Construction Company in Lexington Hills
A Construction Company serving Lexington Hills has to be comfortable with rural job sites. We are. Our crews are used to staging materials at the bottom of a driveway and running pumps where trucks can’t reach, and we’ve done it enough to price it accurately the first time. A concrete driveway installation in Lexington Hills typically runs $4,500 – $12,000, and a full roof replacement runs $8,000 – $20,000, with both numbers trending up when access or slope requires extra equipment or longer material hauls.
We also handle the smaller but structurally important work: re-roofs on older mountain cabins, new windows and doors rated for the fire zone, paver patios and fencing. Every product is selected for how it performs in this specific climate, not just what looks good in a showroom.
Structural and Exterior Work
Older Lexington Hills homes often need more than a cosmetic refresh. We rebuild decks to current code, replace failing roofs with GAF or Owens Corning shingle systems, and reframe bearing walls that have settled on sloped lots. We specify materials by manufacturer performance, not just price per square foot.
Access and Equipment Planning
Every Lexington Hills project gets a mobilization plan. We determine whether a concrete pump is needed, where a material drop can happen without blocking a neighbor’s driveway, and what equipment gets staged where. It’s a line item in our quote. It should be a line item in every quote for this area.
Trusted Brands We Service in Lexington Hills
We stock and source materials from manufacturers whose warranties hold up in mountain conditions. On the roof, we install GAF, CertainTeed, and Owens Corning systems with documented wind and fire ratings. In the bath and kitchen, we specify Grohe fixtures and pair them with the cabinetry, quartz, and tile systems we’ve vetted across 50+ brands. For Lexington Hills customers, that means you’re not waiting on a special-order part from a supplier who doesn’t know your ZIP code. We plan material lead times into the schedule so a siding panel or a shower valve doesn’t hold a final inspection. Every product we install, we’ve vetted, not just stocked.
Common General Contractor Problems We See in Lexington Hills Homes
- Quote shock from plans-only walkthroughs. A contractor who prices a Lexington Hills addition without driving the site may miss the restricted driveway, the steep grade, or the county-imposed fire setbacks. Mobilization and access become change orders after the contract is signed, not before.
- Septic and well setbacks treated as a formality. Santa Clara County reviews well and leach-field separation early, and if the layout is drawn without that, the plan gets redrawn after grading is bid. We pull those records before we quote.
- Slope drainage skipped in the scope. Winter storms in the Santa Cruz Mountains send water down these hills hard. A remodel that doesn’t include erosion control and drainage planning leaves the homeowner exposed to washout, and the fire-hardening work Cal Fire wants isn’t included either.
- Generators and power shutoffs ignored. PSPS events during fire season mean a job site can lose power for days. We plan backup power and schedule around shutoff windows so the build doesn’t stall for a week at a time.
See the difference
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AfterPricing for General Contractor in Lexington Hills, CA
Here’s what homeowners in the 95031 ZIP should expect to budget for the projects we scope most often on Lexington Hills acreage.
| Project | Typical Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Roof Replacement | $8,000 – $20,000 |
Longer driveways, steeper slopes, and heavier access requirements push these numbers toward the upper end. Septic and well review, fire-safe landscaping, and pump-truck staging add real cost, and we’d rather show you that as a planned line item than surprise you with it as a change order. Call (866) 925-0334 to schedule a free estimate, and we’ll give you a written scope tied to your specific lot.
We Also Serve Cities Near Lexington Hills
Millwright Builders regularly works the neighboring communities around Lexington Hills, including Lexington Hills and the adjacent Santa Cruz Mountain corridors. From Los Gatos and Monte Sereno to Cambrian Park and Scotts Valley, we bring the same county-aware scoping discipline to every job. If you’re up the hill or down the valley, reach out. The drive is short; the standards don’t change.
Serving Lexington Hills, CA — Our Local Coverage Area
We’re based in the Lexington Hills 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 Lexington Hills
Because the county review, the septic and well setbacks, and the access plan are all scope items you can’t skip. A typical suburban lot may get a plan through with a single building department; a Lexington Hills project often runs through Santa Clara County building review, environmental health for septic, and Cal Fire for wildland-urban interface compliance. Longer material hauls and equipment staging on narrow private roads add cost before a hammer swings. Call (866) 925-0334 and we’ll scope your specific property before you commit.
Yes. Lexington Hills is unincorporated Santa Clara County, so projects run on county building and septic/well review rather than a city permit counter. Bigger remodels and new structures usually also trigger Cal Fire review because the area sits inside the wildland-urban interface zone. We handle that approval sequence as part of the contract. Call (866) 925-0334 for a free walkthrough and we’ll map out what your specific project will need.
Yes, as long as the site can support it and the access works. We’ve scoped detached ADUs and shops on steep wooded lots in the 95031 ZIP where the driveway, not the foundation, controlled the entire plan. Sloped lots often need a geotech report, a concrete pump instead of a direct pour, and careful grading for drainage. A detached ADU here generally runs $90,000 – $220,000. Call (866) 925-0334 for an exact number on your lot.
We pull Santa Clara County’s records on your well and leach field before we draw anything. Setback distances often dictate where an addition or detached structure can sit, and if the septic system is older or undersized, the county may require an upgrade as part of the permit. We include that review in our scoping, so the layout doesn’t get redrawn after grading is bid. Call (866) 925-0334 and we’ll walk your property first.
A written scope that accounts for the site before the contract is signed. We price access, staging, county review, and drainage upfront, and we tie our draw schedule to inspection sign-offs, not just calendar dates. You see the allowance for every fixture brand before we order it, and you walk the punch list before the final check clears. Call (866) 925-0334 for a free estimate with that level of detail.
Contact Millwright Builders in Lexington Hills
Whether you’re planning an ADU on the ridge, a full-home remodel of a 1960s mountain cabin, or a shop and driveway package on an open lot, we’re ready to scope it honestly. From the roofline to the back patio, one contractor, one conversation. Call (866) 925-0334 to schedule your free estimate. See how our General Contractor team handles complex residential scopes across the county.
Written by Noel Castañeda, Owner at Millwright Builders, serving Lexington Hills and the Santa Cruz Mountains.