A Penhallow company - serving San Jose, CA
A remodeled home with a front porch on a quiet street at golden hour
Los Altos, CA

Remodeling Company in Los Altos - Licensed & Insured, Written Fixed-Price Quotes

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

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A remodeled primary suite with built-in wardrobes and a window seat
A remodeled staircase with wood treads and a slim metal railing
A finished basement family room with a media wall and wet bar
A remodeled laundry and mudroom with a bench, cubbies and painted cabinets
A built-in window seat in a bay window
A wide opening with a new beam where the kitchen wall was removed
A stone counter, tile backsplash and open shelf after a kitchen remodel
A remodeled hall bathroom with subway tile and a floating vanity
Every visit starts with

Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

Your dream remodel for as low as$199/month*On approved credit; ask for current terms
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Remodeling Company in Los Altos, CA

Home remodeling in Los Altos means working on houses built for a different era, on lots that slope toward the foothills, under a permit process that rewards patience and precision. Whether you’re planning a whole-house remodel, a kitchen redo, or a bathroom that finally works for your family, the job here is rarely simple and never cheap, but it can be done right. Call (669) 274-2362 for a written price before any work starts.

Call (669) 274-2362

Why Los Altos Homes Are Different

Los Altos housing stock runs heavily to single-family homes built between the 1950s and 1980s, many in post-and-beam or ranch styles with large lots and original plumbing and electrical that were fine for 1962 and undersized for 2026. We see a lot of kitchens where the subfloor has softened around the sink, bathrooms where the shower pan has been leaking into the framing for years, and additions that were permitted in a looser era and now need to be brought up to current code before anything else can happen.

The climate matters too. Dry summers make for good construction weather, but winter rains mean drainage, waterproofing, and erosion control are not afterthoughts, especially on the western edge of Los Altos near the foothills. A remodel that ignores how water moves across a sloped lot will fail in ways that show up two winters later. And Los Altos has a design review process that is famously exacting. You are not getting a rubber stamp from this city, and that is actually a good thing if the work is done to the standard the reviewers expect.

One more Los Altos specific: many homes in North Los Altos are still on septic systems rather than sewer. Any major addition or remodel can trigger a septic upgrade or sewer hookup before framing starts, which adds cost and time and is not optional. We plan for that from the first site visit rather than discovering it after demo.

Explore

Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Our Main Los Altos Services

The two calls we get most from Los Altos homeowners are for kitchen remodels and bathroom remodels, both of which live on their own pages with full pricing and scope details. Here is what each involves in this city.

General Contractor in Los Altos

Acting as your General Contractor in Los Altos means coordinating the trades, the permits, the inspections, and the schedule on jobs that often touch structural, electrical, plumbing, and finish work at once. On a 1960s ranch in Los Altos, that usually means discovering what is behind the drywall before we can tell you the real scope. We give you a written price for the work we can see, and we tell you plainly what might change once walls are open. No surprises that should have been foreseen.

General Contractor in Los Altos

Bathroom Remodeling in Los Altos

Bathrooms in Los Altos homes built before 1990 often have cast-iron drain lines, improvised waterproofing, and shower pans that were never sloped correctly in the first place. Our Bathroom Remodeling in Los Altos work starts with finding out what is actually under the tile, then building back with a cement board substrate (the moisture-resistant layer behind your tile) and a properly sloped pan that drains. We install Kohler and Moen fixtures and Cambria or Silestone tops where the design calls for them.

Bathroom Remodeling in Los Altos

Kitchen Remodeling in Los Altos

Kitchens in this city are often the original 1960s or 1970s layout: closed off, short on counter space, and wired for appliances that drew half the current of what you own now. Our Kitchen Remodeling in Los Altos work includes moving walls where the structure allows, re-running electrical for modern appliance loads, and installing Wellborn cabinetry and Cambria or Caesarstone countertops. The written price covers the scope we agree on before demolition day.

Kitchen Remodeling in Los Altos
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (669) 274-2362

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Home Remodeling in Los Altos

An open living space after a whole-home remodel

A whole-home remodel in Los Altos is a different animal from a single-room project. You are often working on a 1950s through 1980s home with original framing, outdated electrical panels, and a floor plan that predates how families live now. The winter rains matter here too: proper drainage and waterproofing on sloped foothill lots are not optional, and if your home is in North Los Altos on septic, a major remodel can trigger a septic upgrade before framing begins. We plan for all of this up front. For a deeper look at how we approach full-scale projects, see our Home Remodeling page.

Home Remodeling Contractor

Signs you need it

Your home has systems that are all aging at once, electrical, plumbing, framing, and insulation, and you are tired of fixing one thing at a time.

What it costs in Los Altos

A full home remodel in Los Altos typically runs $45,000 to $130,000 depending on square footage, structural work, and finish level.

How we do it

Walk the house, identify what must be fixed versus what can stay, then write a scope and price before any demolition happens.

Home Renovation

Signs you need it

Rooms do not work for how you live now, and cosmetic fixes will not solve layout or structural problems.

What it costs in Los Altos

A home renovation project typically falls between $45,000 and $130,000 depending on how much of the existing structure stays.

How we do it

We map the existing conditions, design around what is sound, and replace what is not, with a written price covering the agreed scope.

What Home Remodeling Costs in Los Altos

Item Typical range in Los Altos
Whole-house remodel $45,000 – $130,000
Home addition $45,000 – $130,000
ADU construction $90,000 – $220,000
Garage conversion $30,000 – $80,000

How long does a whole-house remodel take in Los Altos?

A whole-house remodel in Los Altos typically takes three to six months depending on permit review timelines and structural scope. We give you a written schedule with a defined arrival window before work starts, and we update it as inspections clear.

Will the price change once walls are open?

Our written price covers everything we can see during the walkthrough. If we open a wall and find rotted framing or outdated wiring we could not have seen, we stop and show you before doing anything. No change orders without your approval. Call (669) 274-2362 to talk through your project.

Brands We Service in Los Altos

We work with Wellborn cabinetry, Cambria and Caesarstone quartz, and Silestone surfaces on Los Altos projects. Parts and slabs are sourced through regional suppliers, and we coordinate delivery around the permit and inspection schedule. See our brands for the full list.

Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Pricing for Remodeling Company in Los Altos, CA

Service Typical range in Los Altos
Kitchen remodel $14,000 – $45,000
Small kitchen remodel $9,000 – $20,000
Cabinet installation $4,000 – $13,000
Countertop installation $2,000 – $6,500
Bathroom remodel $9,000 – $28,000
Small bathroom remodel $5,000 – $12,000
Walk-in shower installation $4,500 – $12,000
Shower replacement $3,000 – $8,500
Home addition $45,000 – $130,000
ADU construction $90,000 – $220,000
Garage conversion $30,000 – $80,000

Prices in Los Altos trend higher than neighboring cities because of the design review process, the age of the housing stock, and the frequency of septic or sewer work on North Los Altos lots. Every project gets a written price before work starts, so the number you approve is the number you pay unless we agree in writing to a change.

Neighborhoods We Serve in Los Altos

We work across Los Altos, from the flat lots near downtown to the hillside streets on the western edge. Here are some of the neighborhoods where we regularly take on remodeling work.

  • North Los Altos
  • South Los Altos
  • Los Altos Hills
  • The Highlands
  • Woodland Acres

Our scheduling is coordinated from the San Francisco Bay Area office, and crews serving Los Altos are dispatched locally. We give you a defined arrival window before every visit, not a four-hour maybe.

Service Area – Cities Near Los Altos

In addition to Los Altos, we take on remodeling projects in Mountain View, CA, Stanford, CA, Cupertino, CA, and Atherton, CA. Each city has its own permit quirks and housing stock, and we adjust the scope and schedule accordingly.

Serving Los Altos, CA - Our Local Coverage Area

We’re based in the Los Altos 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 Remodeling Company in Los Altos

Ready to get started? Free estimates · Free on-site estimates response in Los Altos
Call (669) 274-2362

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local construction pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Los Altos Customers Say

★★★★★ 5.0 from 8+ reviews

"Did our whole kitchen. The written estimate held, which after reading remodel nightmares online I did not take for granted. Showed up every morning on time and the crew was clean and polite."

- Warren Updike

"Kitchen and dining room opened up into one space. They were honest about which wall could come down and which couldn't, no sugarcoating. Dust was kept way down with plastic everywhere."

- Oscar Benitez

"Full kitchen down to the studs. The written estimate held and they finished on the day they promised. Crew was tidy and polite the whole month. Rare to find."

- Vernon Askew

How It Works in Los Altos

Getting your construction handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your construction needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Los Altos - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

Read our remodeling guides
A remodeled living room with built-in shelves around the fireplaceA whole-home remodel with the living, dining and kitchen areas opened upA remodeled family room with new windows and a window seatA dining nook with a built-in banquetteA home office with a built-in desk and shelvesNew painted shaker cabinets with an organized deep drawer

More remodeling services in Los Altos

Every project below starts the same way: a free on-site visit and a written price.

Getting started with Penhallow in San Jose

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

Book an estimate
A remodeling crew arriving at a home with lumber and tools

Your San Jose team

A local crew that works across San Jose and the towns around it, to the same written standard as every Penhallow location.

Areas we serve
A worker laying floor protection and a dust barrier before work starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

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