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 Palo Alto
Hiring a general contractor in Palo Alto for a whole-home remodel, addition, or ADU typically runs $45,000 – $220,000 depending on scope, and the right hire makes the difference between a project that clears Palo Alto’s entitlement process and one that stalls. We’re Ashford Contractors, led by Glen Mossier, and we manage interior and exterior scopes under one contract, one project manager, one point of contact. If you’re weighing a kitchen remodel, a second-story addition in Professorville, or a detached ADU on an acreage lot off Arastradero Road, call (877) 752-3868 and we’ll walk the site before you commit to anything.

Palo Alto isn’t Mountain View. The entitlement process here is its own beast. We know which questions the arborist will ask before you’ve drawn the first elevation, and we build your schedule around Palo Alto’s review timeline, not the other way around. That’s local knowledge you can’t fake by reading a permit portal.
Why Ashford Contractors Is Palo Alto’s Preferred General Contractor Company
Palo Alto homeowners keep bringing us back because we handle the scopes most remodelers hand off. Roofing, windows, siding, cabinetry, hardscape, ADUs. One contract. One project manager. Glen Mossier built Ashford around a simple premise: when a homeowner renovates from the roofline to the foundation, they shouldn’t play phone tag with five different crews. That resonates in a city where remodels routinely touch structural, exterior envelope, and interior finish work in the same building season.
We’re one of the few general contractors in the Palo Alto market with genuine ADU and prefab depth. We source from Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab. Most remodelers in this area don’t touch prefab at all. That matters on Palo Alto acreage where a traditionally stick-built ADU fights tree-root setbacks and long material hauls; a prefab module often clears both faster.
Our response window to Palo Alto zip codes 94301 through 94304 is consistent with our Foster City base. We quote honestly, permit properly, and we don’t inflate change orders once the footing is poured. Homeowners in Barron Park and Old Palo Alto have seen enough contractor games. We’d rather lose a bid than win it on fiction.
Styles & brands we work with







Remodeling Contractor in Palo Alto
A remodeling contractor in Palo Alto handles scopes that most people split across three or four specialty subs: kitchens, bathrooms, whole-home guts, additions, decks, basement finishes. Our team runs those trades under one roof, which means the plumber’s rough-in schedule doesn’t hold up the electrician’s final. We scope every remodel against Palo Alto’s specific conditions: 1890s Craftsman framing in Professorville, mid-century Eichler slabs in Barron Park, and infill tract homes near the 101 corridor all fail differently when you open walls.
Kitchen and Bath Remodels
In Palo Alto, a kitchen remodel runs $14,000 – $45,000 depending on cabinet grade and appliance wall changes. Bathrooms run $9,000 – $28,000. We work in KraftMaid and Wellborn cabinetry, Cambria and Silestone counters, Kohler and Grohe fixtures. You pick the brand tier; we build to it.
Whole-Home and Exterior Scope
When a Palo Alto remodel touches both interior and exterior, we handle the roof, windows, siding, and hardscape in-house rather than subbing to a landscaper and a roofer who’ve never met. That matters on homes where a kitchen addition changes the roofline and the paver driveway has to move.
Licensed General Contractor in Palo Alto
A licensed general contractor in Palo Alto carries the worker’s comp, liability, and state contractor’s license to pull permits on whole-home scopes, not just a single trade. That’s the threshold question on any Palo Alto remodel over $50,000: does the GC actually carry the license and the project management load, or are you subcontracting chaos? We’re the license holder and the daily project manager on every job. Glen Mossier signs the contract, not a rotating parade of supers.
Additions and ADUs
In Palo Alto, a home addition runs $45,000 – $130,000. A detached ADU runs $90,000 – $220,000. The wide spread comes down to county versus city permitting, arborist conditions, and structural upgrades to the original foundation. We price those variables before we break ground, not after.

Garage Conversion and Outbuildings
A garage conversion in Palo Alto runs $30,000 – $80,000 depending on structural reinforcement and whether you’re adding a bathroom stack. On acreage lots, we often build the detached shop or outbuilding in the same scope as the ADU so one permit cycle covers both.
Trusted Brands We Service in Palo Alto
We work with over 50 manufacturers across every home system, and for Palo Alto fencing and exterior scopes we routinely source Ameristar and ActiveYards lines for their aluminum and steel options that hold up through seasonal wet-dry cycling without warping. For vinyl runs, Bufftech and Jerith give us the price-point flexibility Palo Alto homeowners expect when they’re matching a fence to a mid-century home rather than a spec build. We stock common parts locally and can turn around a materials list for your Palo Alto project faster than most shops that have to special-order everything. You want a specific brand, we source it. That’s the point of working with a contractor who has real purchasing relationships instead of whatever the supply house has on the shelf.
See the difference
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AfterCommon General Contractor Problems We See in Palo Alto Homes
- Protected coast live oaks and arborist review: On Palo Alto acreage, heritage and protected coast live oaks dictate setback lines and root-zone exclusion fencing during excavation. A foundation or addition footprint is often designed around the trees before it’s designed around the house. We run a tree survey early so the arborist stop-work order never hits mid-pour.
- County versus city permit confusion on unincorporated land: Homeowners assume Palo Alto building permits apply everywhere, but unincorporated pockets around the city fall under county building and environmental health. Septic and well setbacks then drive the entire site plan. We’ve seen projects lose months because a homeowner applied to the wrong jurisdiction.
- Equipment access and long material hauls: Flag lots and rural driveways off Arastradero Road often can’t handle a loaded concrete truck. We stage materials at the street and run smaller equipment, which changes labor hours in ways a generic bid never accounts for.
- Drainage and grading on open lots: Palo Alto’s wet-dry seasonal cycling means winter runoff pools against foundations if you don’t grade for daylight. We build pads with a slight slope and document the drainage calculations for the county sign-off.
Pricing for General Contractor in Palo Alto, CA
Palo Alto pricing tracks with the city’s housing stock and its entitlement process. Here’s what we quote most often for acreage and large-lot work:
| Project Scope | Palo Alto Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the number? County septic and well setbacks, arborist root-zone conditions, material haul distance, and whether we’re retrofitting an existing foundation or pouring new. We give you a written, line-item quote before you sign anything. Call (877) 752-3868 to schedule your free estimate. We price the job once, honestly, and we don’t come back with change-order games.
We Also Serve Cities Near Palo Alto
From our Foster City base, we serve Palo Alto plus Stanford, West Menlo Park, Los Altos Hills, and Emerald Lake Hills. If your project sits in an unincorporated pocket, we’ll confirm whether you’re under Palo Alto jurisdiction or county review before we quote. As a General Contractor team, we scope the jurisdiction first. That’s the difference between a clean permit and a six-week delay.
Serving Palo Alto, CA — Our Local Coverage Area
We’re based in the Palo Alto 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 Palo Alto
If your parcel falls outside the city of Palo Alto’s incorporated boundary, county building and environmental health have sign-off authority, not the city. That covers septic, well setbacks, and grading. We verify jurisdiction before quoting, because applying to the wrong agency is the single most common delay on Palo Alto-area acreage ADUs. Call (877) 752-3868 and we’ll pull the parcel data with you.
Protected coast live oaks trigger arborist review and root-zone exclusion fencing, which pushes your building envelope away from the tree canopy and can shrink the usable footprint. That often means a smaller building or a more expensive foundation design. We run the tree survey before design finalization so the arborist conditions shape the plan, not your change order.
Site logistics: septic or well setbacks, long material hauls, and equipment access consistently drive ADU costs on Palo Alto acreage more than interior finishes ever will. A $220,000 ADU usually isn’t gold-fixtured; it’s a slab relocation plus a septic mound move plus a 200-foot material haul. We price those variables before you commit.
Yes. We run design and construction for detached shops, outbuildings, and ADUs under one contract. You don’t need a separate architect and a separate builder. We take the site constraints, tree root zones, and county setbacks, then produce plans that clear review the first time. Call (877) 752-3868 for a site walk.
We stage materials at the street and run smaller equipment or a concrete pump to the pour site. It adds line items to the labor budget, and we price that honestly up front. On a recent detached ADU and shop off Arastradero Road, we coordinated a 200-foot material haul because the driveway wasn’t rated for loaded trucks. The pad got built with a slight grade to daylight, and we provided as-built drainage calculations to the county for final sign-off.
Written by Glen Mossier, Owner at Ashford Contractors, serving Palo Alto and the surrounding Peninsula.