







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Renovation Across Antioch
Home renovation in Antioch, CA typically costs between $9,000 for a small bathroom and $130,000+ for a full home addition, depending on scope, materials, and what we find behind the walls. Most Antioch homeowners we work with are budgeting $14,000 – $45,000 for a kitchen remodel or $9,000 – $28,000 for a bathroom remodel. The biggest variable in Antioch isn’t the finish work, it’s what your pre-1980 house reveals during demo: unpermitted additions, aging galvanized plumbing, and expansive clay soils that crack tile. Call (254) 272-5876 to get a written price before any work starts.
We’ve been renovating homes in Antioch long enough to know that your house doesn’t read the same as one in Brentwood or Clayton. The housing stock is older here. The soil moves. And the permitting process has quirks that catch unprepared contractors off guard. That’s exactly why our Home Renovation team treats Antioch as its own job site, not a satellite of some other city’s market.
Why Sawyer Remodeling Is Antioch’s Preferred Home Renovation Company

Antioch homeowners keep calling us back because we run every project under The Relay Visibility Guarantee: a written price before work starts, live arrival time tracking, and before-and-after photo updates. No mystery about who’s showing up. No wondering what the invoice will say. No chasing a contractor who stopped answering texts. The number you approve is the number you pay.
Luca Romano leads our Antioch projects. He’s the one reviewing change orders, walking inspections, and making sure the 365-Day Done Right Promise actually means something. If it’s not done right, we make it right, backed in writing on every project.
Our crews are background-checked and uniformed. When we say someone is arriving at 7:30 AM, that’s the time they pull up. Antioch is a big city geographically, stretching from the river up into the hills off Deer Valley Road. We schedule accordingly, not by some generic hour window.
Styles & brands we work with







Renovation Contractors in Antioch
Renovation contractors in Antioch deal with a specific set of problems you won’t find in newer Bay Area suburbs. Homes built before 1980 dominate much of the city’s housing stock, especially in neighborhoods like Antioch’s downtown core and the older streets near G Street. That means we routinely find enclosed patios that were never permitted, converted garages with no inspection record, and plumbing that’s been patched together over four decades.
A kitchen remodel in Antioch runs $14,000 – $45,000. A bathroom remodel runs $9,000 – $28,000. Those ranges assume the work is scoped correctly from the start. When we find unpermitted work behind the drywall, the scope changes, and so does the price. We put that in writing before we touch anything.
Scoping the Real Job
We start every Antioch project with a walkthrough that looks at what’s behind the walls, not just what’s on the surface. That means checking for galvanized plumbing that could fail when we open the wall. It means looking for aluminum wiring from the 1960s. It means asking whether that sunroom off the kitchen was ever on a permit. These findings shape the estimate you approve.
Permits and Inspections in Antioch
Antioch has its own building department with its own plan review timeline. We pull permits on every project that requires them. We schedule inspections. We don’t ask homeowners to meet an inspector at the house. When the inspection passes, you get the sign-off paperwork, not a verbal “you’re good.”
Whole House Renovation in Antioch

Whole house renovation in Antioch means something different than it does in Oakley or Pittsburg. The pre-1980 housing stock here often has non-permitted prior additions, especially enclosed patios and converted garages, that must be legalized with retroactive permits before new work can be inspected. That’s a city-specific hurdle. It doesn’t exist in newer Bay Area suburbs. And it’s the single biggest reason a whole-house project in Antioch costs more and takes longer than a homeowner expects.
A full Antioch home renovation typically ranges from $45,000 for a focused remodel to $130,000+ for a home addition. ADU construction runs $90,000 – $220,000. Garage conversions run $30,000 – $80,000. These are real numbers from Antioch’s market, not generic national averages.
Legalizing Legacy Additions
In Antioch’s Deer Valley neighborhood, our crew started a bathroom remodel and found the original shower pan had been rebuilt over a recessed slab without a proper rough-in, causing chronic moisture. We pulled the tile, corrected the subfloor and drain, installed a Kohler shower system on a new pan, and passed inspection sign-off with a written change order for the added structural repair. That’s what legalizing legacy work looks like in practice: you fix what you found, document it, and pass inspection.
Soils and Subfloor Reality
Antioch sits on expansive clay soils. Without a soils report or proper subfloor remediation, new tile floors can crack within a season. We factor that into the scope from the start. If you’re doing a whole-house renovation that includes flooring, that’s not an add-on conversation. It’s part of the estimate.
Trusted Brands We Service in Antioch
We install and service renovation materials from brands Antioch homeowners actually know and trust. For kitchens, that means KraftMaid and Wellborn cabinetry, Cambria and Caesarstone countertops, and Kohler and Toto fixtures. For exteriors, GAF roofing and James Hardie siding. Our material partnerships mean you’re choosing from proven manufacturers with warranties behind the install, not whatever the supplier had on sale that week. We keep local stock availability in mind for Antioch projects so lead times don’t stretch your calendar.
Common Home Renovation Problems We See in Antioch Homes
- Unpermitted additions and conversions. Enclosed patios and converted garages were common in Antioch’s building boom decades, and many were done without permits. Legalizing them adds weeks and thousands before new work can begin.
- Expansive clay soil movement. Antioch’s soil expands and contracts with moisture. Tile floors crack, slab foundations shift, and door frames go out of square. Without subfloor remediation, any new floor finish is at risk.
- Aging galvanized plumbing. Homes built before 1970 often have galvanized pipes that corrode from the inside out. We find them during demo, and they usually need replacement before the wall goes back up.
- Aluminum wiring from the 1960s. Aluminum wiring is common in mid-century Antioch homes and requires specific connectors and panel considerations. It’s a safety and code issue, not a cosmetic one.
See the difference
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AfterPricing for Home Renovation in Antioch, CA
Here’s where we stand with real numbers. Kitchen remodels in Antioch run $14,000 – $45,000. Bathroom remodels run $9,000 – $28,000. Home additions run $45,000 – $130,000. ADU construction runs $90,000 – $220,000. Garage conversions run $30,000 – $80,000. What moves you toward the top of those ranges in Antioch specifically is the permitting path on legacy additions, the condition of your subfloor, and what we find when we open the walls.
We give you a written price before any work starts. The invoice you pay matches the price you approved. If a change order is needed because we found something structural, you approve it in writing first, with the exact dollar amount. Call (254) 272-5876 for a free estimate on your Antioch renovation.
| Project Type | Antioch Price 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 |
| Garage Conversion | $30,000 – $80,000 |
We Also Serve Cities Near Antioch
Sawyer Remodeling serves Antioch and the surrounding East Contra Costa County area, including Oakley, Pittsburg, Clayton, and Brentwood. If you’re just outside the Antioch city limits but planning a renovation, call (254) 272-5876 to confirm coverage and schedule a walkthrough.
Serving Antioch, CA - Our Local Coverage Area
We’re based in the Antioch 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 Home Renovation in Antioch
Yes, any kitchen remodel in Antioch that changes plumbing, electrical, or structural elements requires a permit from the City of Antioch Building Division. If your kitchen was previously remodeled without permits, that legacy work may also need to be legalized before new work passes inspection. Call (254) 272-5876 and we’ll walk you through the exact permitting path for your address.
A kitchen remodel in Antioch typically takes 6 – 10 weeks, a bathroom remodel 3 – 6 weeks, and a whole-house renovation 4 – 9 months depending on scope. Antioch’s permitting review adds time compared to cities with newer housing stock, especially if we need to legalize unpermitted prior additions. We give you a written schedule with milestones before we start.
The single biggest cost driver in Antioch is what we find behind the walls: unpermitted additions, galvanized plumbing, aluminum wiring, and expansive soils requiring subfloor remediation. Legalizing an unpermitted patio enclosure or garage conversion can add $5,000 – $20,000 and several weeks. That’s why our written estimate includes a discovery allowance line item, so you’re not surprised later.
Yes, we handle retroactive permitting on enclosed patios, converted garages, and other unpermitted additions in Antioch before new renovation work begins. This involves plan review, structural inspection, and correction work to bring the addition to current code. Call (254) 272-5876 for a walkthrough and written scope.
A typical draw schedule for an Antioch renovation breaks the project into 3 – 5 payments tied to milestones: deposit, demo completion, rough-in inspection passed, and final inspection. Each draw is listed in writing before work starts, so you know exactly when money is due and what triggers each payment. No cash draws at the door. No surprise invoices.
Call Sawyer Remodeling for Your Antioch Home Renovation

If you’re planning a home renovation in Antioch, start with a written price. Call (254) 272-5876 to schedule a free walkthrough and estimate. We’ll send a uniformed, background-checked team member to your home, scope the real job, and put the price in writing before any work begins. Luca Romano and the Sawyer Remodeling crew are ready to get started.
Written by Luca Romano, Owner at Sawyer Remodeling, serving Antioch since 2005.










