







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Union City
If you’re planning a remodel or addition in Union City, the two questions that matter most are what it will actually cost and whether the crew will show up, do the work right, and stand behind it. A kitchen remodel here runs $14,000 – $45,000, a bathroom $9,000 – $28,000, and a home addition $45,000 – $130,000. We write that price down before any work starts. Call Sawyer Remodeling at (254) 272-5876 and you’ll get a written, line-item quote, not a ballpark and a shrug.
Union City’s older tracts, especially the 1950s and 60s single-story homes, come with realities that generic contractors overlook. Slab-on-grade foundations are common here, which means moving a drain often means trenching concrete, not cutting a wood subfloor. That changes the scope, the timeline, and the inspection sequence. Our General Contractor team plans for that up front, because we’ve done it in neighborhoods across Union City.
Why Sawyer Remodeling Is Union City’s Preferred General Contractor Company

We’re not the cheapest bid in Union City and we won’t pretend to be. What we do is put the price in writing before a single tool is picked up, show up when we say we will, and answer the phone when you call. Homeowners here tell us the same thing: they’ve been burned by contractors who quote low, disappear mid-job, then hand over an invoice that looks nothing like the number they agreed to.
Every Union City project runs under The Relay Visibility Guarantee. You get a live arrival time for each visit, photo updates before and after each phase, and a written price that doesn’t change unless you change the scope. That’s not an upgrade or a sales pitch. It’s how we’ve run jobs since 2005.
Luca Romano, who leads Sawyer Remodeling, built this company on the belief that construction doesn’t have to be a casino. When a Union City homeowner signs with us, they know who’s walking into their house (background-checked, uniformed technicians), what it costs (written down), and what happens if something’s not right (the 365-Day Done Right Promise makes it right).
Styles & brands we work with







General Contractor Services in Union City
General Contractor Services in Union City covers the full scope of a remodel or addition: demolition, rough framing, plumbing and electrical rough-in, drywall, finish carpentry, tile, paint, and the final punch list. A Union City homeowner needs this when they’re not just swapping a faucet, but changing how a room works, moving walls, relocating plumbing, or building new square footage.
Kitchen Remodeling
A full kitchen remodel in Union City typically runs $14,000 – $45,000. The spread comes down to what’s behind the walls: slab-on-grade plumbing changes, load-bearing walls, and the finish level of cabinets and counters. We carry KraftMaid and Wellborn cabinetry and Cambria or Caesarstone countertops, so you’re choosing from name brands, not mystery plywood.

Bathroom Remodeling
Bathrooms here run $9,000 – $28,000 for a full gut and rebuild. Walk-in showers land between $4,500 and $12,000. In Union City’s older slab homes, the plumbing rough-in is often the biggest variable, because relocating a drain means cutting concrete, not floorboards. We scope that before we quote.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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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 Union City

Construction Company work in Union City means we take the role of the licensed general contractor that pulls permits, schedules inspections with Alameda County and the City of Union City, manages subs, and holds the schedule. You’re hiring one company that’s accountable for the whole job, not three guys who point fingers at each other when a wall is out of square.
Room Additions and ADUs
A home addition in Union City runs $45,000 – $130,000. An ADU from the ground up lands at $90,000 – $220,000. These are the jobs where permits and inspections matter most. Union City has specific setback and parking requirements for ADUs, and unpermitted work from previous owners is common in older tracts. We handle the paperwork and make sure the final sign-off holds up at resale.
Garage Conversions
A garage conversion in Union City runs $30,000 – $80,000 depending on whether the slab needs leveling, whether the existing headers meet code, and what plumbing has to cross the slab. Many older Union City garages were never built to be living space, so the framing upgrades are real. We quote that honestly, not as a surprise change order.
Trusted Brands We Service in Union City
We don’t push mystery materials. Union City homeowners choose from proven names: KraftMaid and Wellborn cabinets, Cambria, Silestone, and Caesarstone counters, Kohler and Moen fixtures, GAF roofing, James Hardie siding. We also work alongside factory-built components from brands like Abodu and Cover when an ADU or addition calls for panelized or prefabricated systems. When a manufacturer has a local warranty claim or a replacement part, we handle the coordination so you’re not chasing an 800 number. That’s the manufacturer backing the install, and us backing the install.
Common General Contractor Problems We See in Union City Homes
- Slab-on-grade surprises. In neighborhoods like those off Alvarado-Niles Road and around Decoto, 1950s and 60s homes sit on concrete slabs. Moving a drain means trenching concrete, which adds labor and inspection time. We price that from the start, not as a mid-job change order.
- Unpermitted work from previous owners. Converted garages and added rooms without permits are common in Union City’s older tracts. When it’s time to sell or refinance, the city catches it. We pull permits and bring the work to code so the resale inspection doesn’t fail.
- Vague allowances that blow the budget. The homeowner picks a quartzite countertop after the contract said “basic.” The allowance wasn’t written down, and the invoice surprises everyone. We write allowances out before work starts, with your named choices attached to dollars.
- Quotes off photos alone. Some contractors quote a Union City bathroom from three photos and a text message. Then the walls come down and the slab plumbing is different than assumed. We walk the job, open the walls where needed, and quote what’s actually there.
See the difference
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After
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AfterPricing for General Contractor in Union City, CA
Here are the ranges we see across Union City, from the Alameda County portion down to the Decoto district. These are real numbers from real jobs, not internet averages.
| Project | Union City Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the number: whether you’re on slab or raised foundation, whether walls are load-bearing, the finish level of your fixtures and cabinets, and whether the city requires structural upgrades to meet current code. We give you a written line-item quote before any work begins, and the number you approve is the number on the invoice. Call (254) 272-5876 for a free estimate on your Union City project.
We Also Serve Cities Near Union City
Sawyer Remodeling works throughout the East Bay. If you’re in Fremont, Newark, San Lorenzo, or Castro Valley, you get the same written pricing and the same General Contractor in Union City standards we bring to every job across the area. Dispatch and scheduling are coordinated from our San Francisco Bay Area office; the crews are local to Union City and the surrounding cities.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City 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 Union City
Yes, if you’re moving plumbing, altering electrical, or changing framing, you need a permit from the City of Union City Building Division. Swapping a faucet or painting doesn’t require one. We pull all permits and schedule inspections as part of the job, and you’ll see the permit number and inspection dates in writing before we start. Call (254) 272-5876 and we’ll tell you exactly which permits your project needs.
Most often because of slab-on-grade plumbing. Older Union City homes, including many 1950s and 60s tracts, sit on concrete slabs, so relocating a drain means trenching concrete rather than cutting into a wood subfloor. That adds labor, concrete work, and an additional inspection. We identify this before quoting so it doesn’t become a change order. If someone quotes you $9,000 for a slab-home bathroom with a drain move, ask to see their line items.
A draw schedule is a written agreement that ties payments to completed milestones, not to a handshake. On a multi-month addition or ADU in Union City, you shouldn’t pay 50% upfront. We use draw schedules tied to inspections: rough-in passed, drywall hung, final sign-off. It keeps the money and the progress moving together. We write ours out before work starts.
Yes, and it’s one of the more common projects we do in Union City. The city has ADU standards for setbacks, ceiling height, and parking that vary by lot. Many older garages need structural upgrades to meet current code for living space. A garage conversion here runs $30,000 – $80,000 depending on what the existing slab and framing will support. Call (254) 272-5876 and we’ll walk your garage and give you a written quote.
A bathroom remodel usually takes 3 to 5 weeks. A kitchen runs 5 to 8 weeks. A home addition or ADU can run 4 to 7 months depending on foundation work and city inspection schedules. We give you a calendar with dates, not a vague “we’ll be done soon,” and we update it as inspections pass. The punch list is written down and signed off before final payment, not after.
Get Your Union City Project Scoped and Priced Before You Commit

If you’re planning work in Union City, start with a real number, not a guess. We’ll walk your home, open walls where we need to, check for slab-on-grade plumbing and load-bearing conditions, and hand you a written, line-item price. You’ll know who’s coming, when they’ll arrive, and what it costs. Call Sawyer Remodeling at (254) 272-5876 to schedule your free estimate.
Written by Luca Romano, Owner at Sawyer Remodeling, serving Union City and the East Bay since 2005.










