Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterConstruction in Los Altos Hills, CA
Roofing, window replacement, fence installation, and driveway paving in Los Altos Hills typically run 20-40% above flatland Bay Area pricing due to hillside access, CAL FIRE Chapter 7A fire-resistant material requirements, and the Town’s Architectural and Site Committee review process. We quote every project with a flat written price before work begins, including the engineered specifications and permit documentation that Los Altos Hills projects require. Call (831) 704-1211 to schedule your free estimate.
Why Los Altos Hills Homes Are Different
The town’s 1-acre minimum lot mandate and steeply varied topography mean virtually every construction project needs site-specific geotechnical engineering and hillside grading analysis before the county will issue a building permit. The Architectural and Site Committee adds a local design review layer that flat neighboring cities don’t have, extending timelines and costs accordingly.
Large portions of Los Altos Hills sit in CAL FIRE’s Very High Fire Hazard Severity Zone, so new construction and major remodels must comply with California Building Code Chapter 7A. That means fire-resistant exterior materials, ember-resistant vents, and non-combustible roofing assemblies are not upgrades here; they’re code minimums. The November-March wet season channels heavy runoff through hillside terrain, making erosion control and stormwater management permitting requirements on graded sites.
The native oak tree preservation ordinance routinely catches contractors mid-design. A planned foundation, septic expansion, or utility trench often falls within a protected oak’s root zone, triggering redesign and separate arborist review that can add weeks to the permit timeline.
Our Main Los Altos Hills Services
Los Altos Hills homeowners call us most often for interior renovations and expanded living space. Here’s what those projects involve locally.
Kitchen Remodeling in Los Altos Hills
Kitchen remodeling in Los Altos Hills often means opening up 1960s-1970s ranch floor plans while navigating ASC review for any exterior window or roofline changes. We handle the structural engineering for load-bearing wall removal and specify fire-resistant exterior materials where Chapter 7A applies. Our flat written price covers permit-ready drawings, material procurement, and installation. Kitchen Remodeling in Los Altos Hills details our full process and current pricing.
Bathroom Remodeling in Los Altos Hills
Bathroom remodeling here frequently involves aging copper or galvanized plumbing in original ranch homes, plus moisture management challenges on hillside foundations with limited ventilation. We specify mold-resistant cement board, proper weep screed installation at stucco transitions, and exhaust systems sized for the room volume. Every quote is line-itemed and fixed before work starts. Bathroom Remodeling in Los Altos Hills covers our approach.
Home Additions & ADU in Los Altos Hills
Home additions and ADU construction in Los Altos Hills face the town’s triple permitting layer: ASC design review, county building permits, and often geotechnical or oak-tree arborist review. Pier-and-grade-beam foundations are standard on sloped parcels. We manage the full documentation package and quote the project as a flat price with written scope, not an open-ended estimate. Home Additions & ADU in Los Altos Hills explains our ADU and addition process.
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.
Before
AfterRoofing in Los Altos Hills
Most Los Altos Hills homes were built between 1960 and 1980 with wood-shake or early asphalt shingle roofs, and many are now past their service life in a Very High Fire Hazard Severity Zone where Chapter 7A mandates Class A fire-rated assemblies. We inspect, specify, and install roofing systems that meet current code while handling the structural engineering for any rafter or sheathing upgrades the hillside framing requires. Roofing covers our full trade capabilities.
Roof Repair
Signs you need it
Water stains on ceiling drywall, granule loss visible in gutters, or lifted shingles after winter wind events in the hills.
What it costs in Los Altos Hills
Roof repair in Los Altos Hills typically runs $400-$1,800 depending on accessibility, the extent of underlayment damage, and whether Chapter 7A-compliant materials are required for the repair zone.
How we do it
We photograph the full roof condition from the ridge, remove damaged shingles or tiles to inspect the substrate, replace compromised underlayment, install fire-rated materials to match the existing assembly, and document the completed repair with dated photos.
Roof Replacement & Installation
Signs you need it
Multiple leak locations, sagging roof deck visible from the attic, or a roof age exceeding 20-25 years on south-facing slopes that degrade faster.
What it costs in Los Altos Hills
Roof replacement in Los Altos Hills typically costs $8,000-$20,000 for asphalt shingle assemblies, with metal and tile systems running higher due to structural load calculations and hillside crane access.
How we do it
We strip to the sheathing, inspect and replace rotted decking, install fire-resistant underlayment to Chapter 7A standards, flash all penetrations with code-compliant metal, and complete with a Class A-rated shingle or tile system with a written warranty.
What Roofing Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Roof Repair | $400 - $1,800 |
| Roof Replacement | $8,000 - $20,000 |
| Metal Roof Installation | $15,000 - $40,000 |
How long does a roof replacement take in Los Altos Hills?
Most asphalt shingle replacements take 3-5 working days, but ASC review and county permitting can add 4-8 weeks before work starts. We include the permit timeline in our written schedule. Call (831) 704-1211 for a free estimate with current lead times.
Do I need fire-resistant roofing in Los Altos Hills?
Yes, if your property is in the Very High Fire Hazard Severity Zone, which covers most of the town. Chapter 7A requires Class A fire-rated roof assemblies on new construction and major remodels. We specify compliant materials in every quote. Call (831) 704-1211 to confirm your zone and options.
Windows & Doors in Los Altos Hills
Original 1960s-1970s ranch homes in Los Altos Hills still carry single-pane aluminum windows that leak heat and fail to meet current energy code, while hillside wind exposure and fire zone requirements make replacement specification more complex than in flatland cities. We measure, specify, and install window and door systems that satisfy Chapter 7A ember-resistance rules and Title 24 energy standards without sacrificing the sightlines these properties are built for. Windows & Doors details our full product range.
Window Replacement
Signs you need it
Condensation between glass panes, visible frame rot at the sill, or difficulty operating sashes that have warped from decades of sun exposure on south-facing hillsides.
What it costs in Los Altos Hills
Window replacement in Los Altos Hills typically runs $4,500-$15,000 for a full-home project, with per-unit pricing varying by frame material, glazing package, and whether tempered glass is required for hillside wind loads.
How we do it
We measure each opening for square and level, specify dual-pane low-E units with vinyl or fiberglass frames rated for the local climate, install with proper flashing integration to the stucco or siding, and seal to Title 24 air-leakage standards.
Impact Windows & Doors
Signs you need it
Large picture windows on wind-exposed ridges, sliding doors facing prevailing westerlies, or insurance requirements for hillside properties in designated hazard zones.
What it costs in Los Altos Hills
Impact window installation in Los Altos Hills typically costs $8,000-$25,000 depending on opening count, laminated glass thickness, and structural reinforcement needed for the frames.
How we do it
We engineer the rough openings for the increased dead load of laminated glass, install reinforced frames with proper anchorage to hillside framing, integrate impact-rated hardware, and test operation under load before final trim.
What Windows & Doors Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Window Replacement | $4,500 - $15,000 |
| Impact Window Installation | $8,000 - $25,000 |
Do new windows need to be fire-rated in Los Altos Hills?
Chapter 7A requires tempered glass and non-combustible frames for windows in designated fire zones, which covers most of the town. We specify compliant units and document the rating for permit final. Call (831) 704-1211 for a free window assessment.
Can you match modern window performance without changing the exterior look?
Yes, we source slim-profile fiberglass and aluminum-clad wood frames that replicate the sightlines of original ranch windows while meeting current energy and fire codes. The quote includes finish samples before order. Call (831) 704-1211 to see options.
Fence Installation in Los Altos Hills
Fence installation in Los Altos Hills must navigate the 1-acre lot minimums, significant grade changes between properties, and the Architectural and Site Committee’s review of any fence over 6 feet or visible from the road. We engineer fence lines for hillside topography and specify materials that satisfy Chapter 7A non-combustible requirements in fire zones without looking like institutional barriers. Fence Installation covers our full material and design range.
Vinyl Fence
Signs you need it
Rotting wood fence posts at grade level, HOA or ASC requirements for uniform appearance along shared road frontage, or preference for zero-maintenance material on large hillside parcels.
What it costs in Los Altos Hills
Vinyl fence installation in Los Altos Hills typically runs $3,500-$9,000 depending on linear footage, post depth required for hillside stability, and whether stepped or racked panels are needed for grade changes.
How we do it
We lay out the fence line with a laser level to account for grade, auger post holes to 24-inch minimum depth in native soil, set posts in concrete with slope for drainage, and install vinyl panels with aluminum or steel reinforcement for wind exposure.
Aluminum Fence
Signs you need it
ASC preference for open sight-line fencing on corner lots, pool enclosure requirements, or need for non-combustible perimeter barrier in Very High Fire Hazard Severity Zone properties.
What it costs in Los Altos Hills
Aluminum fence installation in Los Altos Hills typically costs $4,000-$10,000, with powder-coated systems and welded-rail construction at the higher end of the range for hillside wind exposure.
How we do it
We specify 6005-T5 alloy with AAMA 2604 powder coat, core-drill or excavate post footings to engineered depth for slope stability, rack panels to follow grade without gapping, and ground all gates and hardware for safety.
What Fence Installation Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Vinyl Fence Installation | $3,500 - $9,000 |
| Aluminum Fence Installation | $4,000 - $10,000 |
Does the Architectural and Site Committee review fences in Los Altos Hills?
Yes, any fence over 6 feet or visible from a public road requires ASC approval before county permitting. We include ASC submittal drawings in our flat-price quote. Call (831) 704-1211 to discuss your fence line and timeline.
Can you install a fence on a steep slope?
Yes, we engineer stepped or racked installations for Los Altos Hills topography, with post footings designed for lateral soil pressure on grades. The written quote specifies the method for your specific slope. Call (831) 704-1211 for a site evaluation.
Driveway & Pavers in Los Altos Hills
Driveway and paver installation in Los Altos Hills faces hillside runoff management requirements, CAL FIRE non-combustible surface rules in fire zones, and the reality that many 1960s ranch driveways were poured without reinforcement and are now cracked from oak root intrusion or seasonal soil movement. We excavate, grade, and install hardscape systems with proper base compaction and drainage that satisfy county engineering and ASC aesthetic review. Driveway & Pavers details our full installation capabilities.
Paver Driveways
Signs you need it
Spiderweb cracking across unreinforced concrete, oil staining that has penetrated beyond surface cleaning, or ASC preference for permeable, non-reflective surfaces that blend with hillside landscaping.
What it costs in Los Altos Hills
Paver driveway installation in Los Altos Hills typically runs $7,000-$18,000 depending on square footage, base excavation depth for clay soils, and whether Belgard or Techo-Bloc premium pavers are specified.
How we do it
We excavate to 8-12 inches of compactable base, install geotextile and graded aggregate in lifts with plate compaction, set edge restraint in concrete, lay pavers to pattern with 1/16-inch joint spacing, and sweep in polymeric sand for lock-up.
Concrete Driveways & Concrete Work
Signs you need it
Significant settlement cracking, spalling from decades of freeze-thaw cycling in shaded hillside exposures, or need for engineered drainage channels to manage November-March runoff.
What it costs in Los Altos Hills
Concrete driveway installation in Los Altos Hills typically costs $4,500-$12,000, with steel-reinforced slabs and integral color at the higher end for ASC-compliant appearance and structural longevity.
How we do it
We form to engineered grade with proper slope for drainage, place #3 rebar on 18-inch centers, pour 4-inch minimum 3000-PSI concrete with fiber reinforcement, control-joint at calculated spacing, and cure for 7 days before vehicle loading.
What Driveway & Pavers Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Paver Driveway Installation | $7,000 - $18,000 |
| Concrete Driveway Installation | $4,500 - $12,000 |
| Asphalt Driveway Paving | $3,500 - $9,000 |
Do paver driveways need fire-resistant materials in Los Altos Hills?
Non-combustible hardscape surfaces are recommended in Very High Fire Hazard Severity Zones; pavers qualify when properly installed with inorganic base materials. We specify accordingly and document for permit. Call (831) 704-1211 for a free driveway evaluation.
How do you handle drainage on a sloped driveway?
We engineer swales, channel drains, or permeable paver systems to intercept and direct November-March runoff without eroding the hillside or undermining the subgrade. The written quote includes the drainage plan. Call (831) 704-1211 to discuss your site.
Brands We Service in Los Altos Hills
We source across fifty-plus vetted brands including Tamko and Boral roofing, PGT and CGI window systems, and Belgard and Techo-Bloc pavers, giving our written quotes honest numbers rather than inflated ones. Our San Francisco Bay Area office stocks common repair parts for faster turnaround on service calls. See our brands for the full list.
Pricing for Construction in Los Altos Hills, CA
| Service | Typical range in Los Altos Hills |
|---|---|
| Kitchen Remodel | $14,000 - $45,000 |
| Bathroom Remodel | $9,000 - $28,000 |
| Home Addition | $45,000 - $130,000 |
| ADU Construction | $90,000 - $220,000 |
| Roof Replacement | $8,000 - $20,000 |
| Window Replacement | $4,500 - $15,000 |
| Vinyl Fence Installation | $3,500 - $9,000 |
| Paver Driveway Installation | $7,000 - $18,000 |
| Concrete Driveway Installation | $4,500 - $12,000 |
| Roof Repair | $400 - $1,800 |
Prices in Los Altos Hills run higher than flatland Bay Area markets due to hillside access, geotechnical engineering requirements, ASC review timelines, and Chapter 7A fire-resistant material mandates. Under Clause 1 of the Haven Standard, every project receives a flat written price with line-item scope before any work begins, and no change proceeds without a signed change order.
Neighborhoods We Serve in Los Altos Hills
We work across the full town, from the original ranch neighborhoods near Purissima Road to the contemporary hillside estates above Moody Road. Dispatch and scheduling are coordinated from our San Francisco Bay Area office; crews serve Los Altos Hills locally with same-week availability for estimates.
- Westridge
- Robleda Estates
- Moody Road area
- Purissima Canyon
- Altamont corridor
Service Area - Cities Near Los Altos Hills
Our crews work throughout the South Bay and Peninsula, with regular projects in Campbell, CA, Los Gatos, CA, Saratoga, CA, and Cupertino, CA. Each city has its own permitting environment and construction character, and we adjust our quotes and timelines accordingly.
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 Construction in Los Altos Hills
Most projects require 6-12 weeks for Architectural and Site Committee review before county building permit submission, with geotechnical or arborist review adding time. We include realistic permit timelines in every written quote and manage the submittal process as part of our flat price.
Yes, if your property has significant grade change, which describes most Los Altos Hills parcels. The report analyzes soil stability, drainage, and foundation requirements; we coordinate the engineering and include it in our project scope and price.
Yes, permit acquisition and inspection scheduling are included in our flat written price for every trade. We handle ASC submittal, county building permits, and all required inspections, with the documentation delivered to you at project closeout.
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 Los Altos Hills Customers Say
"They found an old septic line under the driveway run and stopped, documented it, and re-quoted before continuing."
- Xavier L."Talked us out of the larger scope we came in asking for, because it would not have added the value we thought."
- Emil R."Driveway replaced properly with a base that will actually last. They explained why the cheaper quote was cheaper."
- Reggie O.