







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Brentwood
Hiring a general contractor in Brentwood, CA means lining up county permits, material lead times, and a trade crew that shows up when they say they will. We’re Sawyer Remodeling, and we’ve built our name on that exact sequence. A Brentwood kitchen remodel typically runs $14,000 – $45,000, a bathroom $9,000 – $28,000, and a home addition $45,000 – $130,000. We put that price in writing before any tool gets picked up. Call (254) 272-5876 and we’ll walk you through the real scope for your project.
Why Sawyer Remodeling Is Brentwood’s Preferred General Contractor Company

Brentwood homeowners deal with a specific headache: contractors who quote off a wish list, then argue about change orders once cabinets and counters are ordered. That’s the problem our written scope of work solves. Before construction starts, you get a line-item price, a calendar, and the names of who will be in your house. No mystery allowances.
We’re part of the Relay Home Co. family, founded in 2005, and every Brentwood job runs under The Relay Visibility Guarantee. That means a live arrival time, photo updates before and after, and a digital invoice you pay from a link. The 365-Day Done Right Promise backs the whole project in writing: if it’s not done right, we make it right. Homeowners around Brentwood, from Deer Ridge to Shadow Lakes, tell us the same thing: they just want a contractor who answers the phone and doesn’t disappear. That’s the baseline, not an upgrade.
Background-checked, uniformed technicians on every job. Material partners include Cambria, Silestone, and Caesarstone for counters, Kohler and Moen for fixtures, and KraftMaid for cabinets. You’ll know exactly who is walking into your home before they arrive.
Styles & brands we work with







General Contractor Services in Brentwood
General Contractor Services in Brentwood means one accountable company coordinating the full job: demolition, rough-in, drywall, tile, electrical, plumbing, and finish work. If you’re pulling permits through Contra Costa County, you need a licensed GC who knows the inspection sequence. We do.
Kitchen and Bath Remodels
A full kitchen in Brentwood runs $14,000 – $45,000 depending on cabinet line, counter slab, and whether you’re moving plumbing or gas. We scope it in writing first. A bathroom remodel runs $9,000 – $28,000, with walk-in showers at $4,500 – $12,000 and tub-to-shower conversions at $3,500 – $10,000. The written quote is the number you approve before work starts.

Room Additions and ADUs
Adding square footage in Brentwood means county permits and, for many larger projects, a separate county fire district review. We handle that coordination. Home additions run $45,000 – $130,000, and ADU construction runs $90,000 – $220,000. Those numbers include a realistic allowance structure for finishes, not a lowball that balloons later.

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.
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You approve before work beginsNothing starts until you say go.
Construction Company in Brentwood

A Construction Company in Brentwood is only as good as its scope of work and its permit record. Sawyer Remodeling runs every job with a written scope, county permits pulled, and inspections passed before final payment. That’s the whole game.
Whole-Home and Structural Work
Whole-home remodels in Brentwood frequently involve opening load-bearing walls. Before we touch a wall, we confirm whether it’s load-bearing and what the structural change costs. That’s the difference between a weekend plan and a structural change order. We quote it up front.
Deck and Outdoor Construction
Decks in Brentwood’s hot, dry summers need proper footing depth and weather-rated hardware. We build to Contra Costa County code and pull the permits. Material choices run from pressure-treated pine to composite decking. The written price includes the full build, not just the framing.
Trusted Brands We Service in Brentwood
Brentwood homeowners don’t want mystery suppliers. We install and service kitchens and baths built around name-brand materials: KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone counters, Kohler, Moen, and Grohe fixtures. For exterior work, we use GAF, CertainTeed, and James Hardie. These brands carry manufacturer backing behind the install, which matters when a warranty claim comes up. We also keep relationships with local Brentwood suppliers so material lead times stay honest, not aspirational. A few Brentwood homeowners have asked about prefab ADU builders like Abodu and Dvele. We’re happy to talk through how those compare to a stick-built addition on your lot.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Brentwood Homes
- No written scope of work. A contractor quotes off a wish list, then argues about allowances once cabinets and counters are ordered. We write the scope before pricing so the quote matches the job.
- Skipped county permits. Brentwood sits in unincorporated Contra Costa County, so additions and bathroom rough-in go through the county building division, not a city hall. Skipping permits stalls the job and surfaces as a resale problem later.
- Material lead times ignored. KraftMaid cabinets and Cambria slabs can run 6 – 12 weeks depending on the line. A contractor who treats the calendar as an afterthought blows past the promised completion date. We schedule around real lead times.
- Load-bearing walls missed. Opening up a Brentwood kitchen without confirming the wall structure turns a weekend plan into a structural change order. We check before we quote.
Pricing for General Contractor in Brentwood, CA
Here’s what a Brentwood homeowner should expect to pay. Kitchen remodels run $14,000 – $45,000. Bathrooms run $9,000 – $28,000. A home addition is $45,000 – $130,000, and an ADU runs $90,000 – $220,000. Countertop installation runs $2,000 – $6,500, cabinet installation $4,000 – $13,000, and walk-in showers $4,500 – $12,000.
| Project | Typical Brentwood Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Walk-In Shower Installation | $4,500 – $12,000 |
What changes the price? Moving plumbing or gas lines, structural modifications, and material grades. What shouldn’t change the price? The number on the invoice. That’s the number you approved. Call (254) 272-5876 for a free, written estimate on your Brentwood project.
We Also Serve Cities Near Brentwood
Our crews serve Brentwood and the surrounding East Contra Costa cities: Oakley, Discovery Bay, Antioch, and Clayton. If you’re just outside the city line, we can still help. Check our Brentwood page for service boundaries, or call (254) 272-5876 to confirm your address.
Serving Brentwood, CA - Our Local Coverage Area
We’re based in the Brentwood 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 Brentwood
Yes, in most cases. Brentwood sits in unincorporated Contra Costa County, so additions, structural changes, and bathroom or kitchen rough-in go through the county building division rather than a city building department. Larger projects may also trigger a separate county fire district review. We pull the permits and schedule inspections as part of the job. Call (254) 272-5876 and we’ll tell you what your specific project needs.
Three things: moving plumbing or gas lines, structural changes, and material grades. A $14,000 kitchen uses stock cabinets and entry-level counters. A $45,000 kitchen moves the sink, opens a wall, and upgrades to Cambria or Caesarstone slabs. We write the scope first, then price it. Call (254) 272-5876 for a free estimate based on your actual plan.
A bathroom remodel runs 3 – 6 weeks, a kitchen 6 – 12 weeks, and a home addition 3 – 6 months, depending on county inspection timing and material lead times. We build the calendar around real lead times from KraftMaid, Cambria, and other suppliers before we quote. Call (254) 272-5876 and we’ll give you a honest timeline for your project.
A scope of work, a line-item price, a draw schedule, and the warranty. Our written price lands in your hands before work starts, and the 365-Day Done Right Promise says if it’s not done right, we make it right. No verbal promises. Call (254) 272-5876 and we’ll put your project in writing.
Yes. ADU construction in Brentwood runs $90,000 – $220,000, and garage conversions run $30,000 – $80,000. Both go through county permits, and many trigger the fire district review on top. We coordinate the whole thing. Call (254) 272-5876 for a written quote.
Brentwood sits in unincorporated Contra Costa County, so most single-family additions and ADUs go through the county’s building division rather than a city building department. That means a different permit sequence, longer inspection lead times in some seasons, and a fire district review on larger projects. A local general contractor who knows that sequence saves you weeks.
We scoped a hall-bath and kitchen refresh in Brentwood’s Deer Ridge neighborhood, where the original 1990s tile shower pan had failed and the kitchen still ran on a 30-inch range with no true venting. Our crew handled the rough-in for a new shower valve and dedicated vent hood circuit, pulled the county permits, and worked through allowances on Cambria counters and KraftMaid cabinets. The inspection sign-off and punch list cleared three weeks after the last cabinet went in.
That’s the job sequence we walk every Brentwood homeowner through: scope of work, county permits and inspection sign-off, allowances, change orders, draw schedule, and punch list. So the quote you get actually matches the job that gets built.
Written by Luca Romano, Owner at Sawyer Remodeling, serving Brentwood and East Contra Costa County since 2005.










