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 Los Altos Hills
A full-scope general contractor in Los Altos Hills typically handles everything from kitchen remodels and room additions to full custom home renovations, with project costs ranging from $45,000 for a modest addition up to $220,000 for an ADU. Most work on the town’s steep, wooded one-acre-plus lots runs through discretionary planning and site-development review rather than a simple counter permit, which means the approval path usually sets the schedule before framing ever starts. We coordinate every trade under one accountable team, so you’re not juggling separate crews for framing, electrical, plumbing, and finishes. Call (833) 382-8544 to talk through your project and get a written estimate.
Why Gold Star Contractors Is Los Altos Hills’s Preferred General Contractor Company
Los Altos Hills homeowners call us because we understand what building on a hillside parcel actually requires. The town’s hillside, tree-preservation, and lot-coverage rules don’t reward contractors who treat every job like a standard suburban permit. Our General Contractor team has worked through enough site-development reviews in the 94022 hills to know where approvals stall and how to keep them moving. We’ve handled mid-century ranchers off steep private drives, contemporary rebuilds tucked against protected oaks, and additions that had to carve around root zones the town wouldn’t let us touch.
When we walk a Los Altos Hills property, we’re looking at more than square footage. We’re checking driveway grades that the town reviews as engineered features, retaining walls that hold back winter-rain erosion on clay soil, and the defensible-space clearing that fire season demands on the wildland-urban interface. That local fluency is why homeowners in Los Altos Hills trust us with five- and six-figure remodels: the surprises we find are priced and approved in writing before any drywall closes, and the permit path is mapped before we ever swing a hammer.
Styles & brands we work with







General Contractor Services in Los Altos Hills
Our General Contractor Services cover the full scope of residential construction in Los Altos Hills, from ground-up custom homes and major additions to kitchen and bath remodels that open up walls. Most projects start because a homeowner wants more usable space or a modernized interior, and the work usually uncovers conditions the original build never accounted for: aging wiring, undersized framing, failed waterproofing, and code upgrades triggered the moment a permit is pulled.
Full Interior Remodeling
Kitchens, baths, and whole-home renovations on hillside lots require careful sequencing because the structure often needs remediation before finishes go in. A kitchen remodel in Los Altos Hills runs $14,000 to $45,000, while a bathroom remodel typically lands between $9,000 and $28,000, depending on what the walls reveal once they’re open.

Major Additions and ADUs
Room additions and ADUs in Los Altos Hills are shaped by the town’s lot-coverage and site-development constraints more than by framing. A home addition ranges from $45,000 to $130,000, and an ADU runs $90,000 to $220,000. We work with the town’s review path and plan around tree-protection zones so your foundation doesn’t get held up by a protected oak.

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.
Construction Company in Los Altos Hills
As a Construction Company serving Los Altos Hills, Gold Star Contractors acts as the single accountable team across every trade, from framing and roofing to windows, fencing, hardscaping, and full renovations. Homeowners reach out to us when they want one firm managing the entire project instead of coordinating separate vendors for each system. That matters most on hillside lots where a foundation or retaining wall decision in phase one affects drainage, erosion control, and defensible space three phases later.
Exterior Systems and Hardscaping
Los Altos Hills homes sit on steep, wooded parcels where driveway grades and retaining walls are engineered features the town reviews closely. Whether it’s a paver driveway ranging $7,000 to $18,000, a roof replacement at $8,000 to $20,000, or impact window installation at $8,000 to $25,000, we manage the install and coordinate with the town’s site-development requirements.
Franework and Structural Remediation
Opening walls in an older Los Altos Hills home frequently exposes framing that wouldn’t pass today’s code. We stop work, bring in an engineer when needed, and price the repair as a written change order before any drywall closes. That’s the difference between a quote that holds and an unpriced surprise that derails the schedule mid-demo.
Trusted Brands We Service in Los Altos Hills
Gold Star Contractors partners with more than 50 manufacturer brands across cabinetry, countertops, roofing, plumbing fixtures, and prefab structures. For Los Altos Hills clients, we stock and specify fixtures from Toto, American Standard, and Schluter systems, pairing premium materials with install crews who understand the technical standards those brands demand. On our recent hillside projects, we’ve paired Schluter waterproofing under tile in walk-in showers and Toto fixtures in master baths where longevity matters more than trend. When you’re planning a remodel in Los Altos Hills, having access to 50+ vetted brands means you choose the material and we handle the rest: specify, install, and stand behind the result.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in Los Altos Hills Homes
- Hidden framing failures on hillside homes. Mid-century ranchers in the 94022 hills often have undersized, notched framing carrying load the original plans never showed. We stop work, get an engineer’s letter, and price the repair as a written change order before touching a stud.
- Outdated wiring exposed by a permit trigger. Once walls are open and a renovation permit is active, cloth-wrapped wiring and overloaded panels require a rough-in rewire before drywall can close. We schedule the electrical inspection so sign-off happens before finishes go in.
- Site-development review stalling the schedule. Virtually every hillside project over the counter-permit threshold must clear the town’s discretionary planning review. Driveway grades, retaining walls, and tree-preservation zones all get scrutinized, so we map the approval path before framing begins.
- Failed waterproofing on sloped lots. Winter rains on steep clay soils expose drainage and erosion-control problems that fire-resistant and defensible-space requirements only amplify. We inspect for failed waterproofing early so it’s priced and scheduled, not discovered as an emergency later.
Pricing for General Contractor in Los Altos Hills, CA
Here’s what we see across the Los Altos Hills market. These are not bid numbers; every scope gets a written line-item estimate after we walk the site and check the town’s site-development path.
| Project | Typical Range in Los Altos Hills |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Garage Conversion | $30,000 – $80,000 |
What shifts the number is what the walls reveal. In a Los Altos Hills home built before modern wiring standards, the cost rises when a remodel permit triggers rewiring or framing repair. We write allowances into the contract up front and price every surprise in writing before work resumes. Schedule a free estimate at (833) 382-8544.
We Also Serve Cities Near Los Altos Hills
Beyond Los Altos Hills, we serve Los Altos, Mountain View, Loyola, and Stanford. Our General Contractor in Los Altos Hills team works across the entire region, so the same inspection-first process and written allowance structure applies whether your project sits on a flat Mountain View lot or a steep Loyola hillside.
Serving Los Altos Hills, CA — Our Local Coverage Area
We’re based in the Los Altos 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 Los Altos Hills
We stop work, document what’s there, and get an engineer’s letter if the framing requires repair; then we price the rewire or structural fix as a written change order before any drywall closes. The permit inspection sign-off happens only after the rough-in work is complete, so you’re never building over something that won’t pass code. Call (833) 382-8544 to have us look at your home’s condition before you commit to a remodel.
Every contract we write includes allowances for known unknowns like rewire scope or framing repair, with line items priced in the contract itself. When we open a wall and find something the visible conditions didn’t show, we price it in writing and get your approval before we touch a stud. That’s the standard for Los Altos Hills projects, and it’s why our quotes hold where others slide.
Yes, the town’s discretionary planning and site-development review takes longer than an over-the-counter permit, and hillside, tree-preservation, and lot-coverage rules all get scrutinized before a foundation can be poured. The approval path, not the framing, usually sets the schedule. We handle the town’s review process as part of the job, so you’re not waiting on paperwork surprises.
We design the footprint around the root zone and lot-coverage limits before the foundation is engineered, because the town’s review won’t let a protected oak or a coverage overage slide. That often means adjusting the addition’s shape or shifting the driveway, not abandoning the plan. We map those constraints during the site walk, not after the permit is filed.
We specify fire-resistant siding, roofing, and venting from brands like James Hardie and our roofing partners, and we build defensible-space clearing into the site plan so the finished project meets the town’s wildland-urban interface requirements. The work is coordinated with the same team handling your addition, so erosion control and drainage don’t get treated as an afterthought.
Planning a remodel or addition in Los Altos Hills? Call (833) 382-8544 for a free estimate, and we’ll walk your site with the town’s review path and your lot’s constraints already in mind.
Written by Noel Carranza, Owner at Gold Star Contractors, serving Los Altos Hills and the surrounding communities.