







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Commerce
Most Commerce homeowners call a General Contractor after a project has already stalled: a permit got skipped, a bid came back vague, or a subcontractor stopped answering. If that’s where you are, we can help you sort it out. Mason Remodeling serves Commerce with written pricing before any work starts, background-checked crews whose names and photos you receive before arrival, and a 365-Day Done Right Promise on every completed project. Call (803) 680-2547 and a live person answers, day or night, weekends included.
Commerce is different from the sprawling LA neighborhoods around it. It’s a tight, mostly built-out city where homes from the 1940s through 1960s sit on slab-on-grade foundations, and where the city leans on LA County for plan checks and inspections. That single fact shapes how a remodel here should be scoped, priced, and scheduled. We know this because we’re in these houses every week, from Bristow Park to the residential pockets off Telegraph Road and Bandini Boulevard.
Why Mason Remodeling Is Commerce’s Preferred General Contractor Company

Commerce homeowners don’t have time to chase a contractor who disappears after the deposit clears. Our reputation here is built on showing up with a written scope of work, a draw schedule tied to milestones, and a crew you can recognize at the door. Every technician arrives in a clean marked uniform and shows a photo ID badge before stepping inside. You get the name and photo of whoever is coming, before they come. That’s The Threshold Standard, and it’s how we’ve operated since 2004 as part of the Threshold Group family of home-service companies.
Trade partners around Commerce regularly refer us because we handle the county side of the job correctly the first time. When a remodel in the Bandini Corridor needs an electrical rough-in inspection from an LA County inspector, we’ve already built the plan-check timeline into the schedule. That means fewer surprises for you mid-project. Isaac Pruett, who leads our general contracting work, reviews every Commerce scope of work before it goes to a homeowner. Written price first, then tools.
Styles & brands we work with







Remodeling Contractor in Commerce
A Remodeling Contractor in Commerce does more than swing hammers. On a 1950s slab-on-grade home near the Commerce Casino, a kitchen renovation means opening walls and finding galvanized supply lines, original 110V wiring, and a subfloor that hasn’t been level since the Eisenhower administration. The job is to manage all of it: plan check with LA County, rough-in inspections, material lead times, and a finish schedule that doesn’t leave you without a sink for two months.
In Commerce, a kitchen remodel typically runs $14,000 – $45,000. A smaller kitchen in a postwar bungalow often falls in the $9,000 – $20,000 range. What moves the number isn’t just cabinet choice. It’s whether the slab is cracked, whether the wiring needs a panel upgrade, and whether the county requires additional plan revisions before sign-off. We write all of that into the bid so you see it on paper before we start.
Kitchen and Bath Rough-In Reality
Commerce’s housing stock was largely built before modern building codes. That means rough-in work, the plumbing and electrical hidden behind walls, often needs to be redone before cabinets or tile go in. We don’t treat that as a “surprise change order.” We scope for it on the front end, note it in the written price, and schedule the county inspection before any wall closes.
Written Allowances, Not Guesswork
Cabinet and countertop allowances are where Commerce homeowners get burned. A bid that says “allowance: cabinetry” without a real number means every selection becomes a change order. We set realistic allowances for the brands homeowners actually want: KraftMaid or Wellborn cabinets, Cambria or Silestone countertops, Kohler or Moen fixtures. You pick from a spec-grade list and the price holds.
Licensed General Contractor in Commerce

A Licensed General Contractor in Commerce carries one job you may not read about in a brochure: keeping the county inspection process moving so your project doesn’t stall. Commerce contracts with LA County for building plan checks and inspections, which means the timeline is different from cities with their own building department. A same-week counter sign-off is not a thing here. We build our draw schedule and material ordering around the county’s actual turnaround, not a hopeful guess.
For a licensed GC, the license is the entry point, not the finish line. What matters more in Commerce is whether the contractor knows the county’s plan-check reviewer expectations for the type of work you’re doing. Home additions in Commerce run $45,000 – $130,000. ADU construction runs $90,000 – $220,000. Garage conversions run $30,000 – $80,000. Those ranges assume the project is scoped correctly up front, including plan check fees, inspections, and a realistic schedule. We’ll give you the written number before any work begins, and we’ll stand behind it with a written guarantee that states exactly what’s covered and for how long.
Permit-Tight Scope of Work
In Commerce, “we’ll handle permits” is not enough. You need a scope of work that names which permits are pulled, when the county inspections are scheduled, and what happens if the plan check comes back with comments. We write that into the contract. No verbal promises, no handshake engineering.
Draw Schedule Built for Reality
A milestone-based draw schedule protects you. Deposit, rough-in completion, final inspection, punch list. Each milestone ties to a dollar amount you approved in writing before demolition started. If a county inspection pushes a milestone back, the draw shifts with it. You don’t pay for work that hasn’t been inspected and signed off.
Trusted Brands We Service in Commerce
Some Commerce homeowners ask us about prefab and panelized systems when they hear names like Abodu, Cover, or Dvele. We’re familiar with those approaches and we service the projects that use them, whether that means preparing the site, coordinating the utility rough-in, or finishing out the interior after the modules are set. For traditional stick-built remodels, we stock and install spec-grade materials from KraftMaid, Wellborn, Cambria, Silestone, Kohler, Moen, Toto, and Grohe. When a Commerce kitchen needs a specific cabinet line or a particular quartz color, we can usually get it faster because we order directly through our supply partnerships rather than a big-box store. Fast turnaround on parts and materials keeps your project moving.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Commerce Homes
- Slab-on-grade surprises during demolition. Homes built in Commerce between the 1940s and 1960s sit directly on concrete slabs. Cracking, settling, or old cast-iron drain lines under the slab are common, and a remodel that didn’t account for them gets expensive fast.
- Undersized electrical panels and old 110V circuits. A kitchen remodel that adds a microwave, dishwasher, and island outlets often needs a panel upgrade. Bidding the job without checking the panel means a mid-project change order of several thousand dollars.
- Galvanized supply lines that crumble when touched. We regularly open walls in Commerce and find supply pipes that have been corroding for 60 years. They often need replacement back to the meter, which is code-driven, not optional.
- Change orders from placeholder allowances. When a bid lists “cabinets: TBD” or “countertops: allowance,” every selection you make later becomes a price change. Our Commerce bids include real allowances tied to the brands you’ll actually choose.
Pricing for General Contractor in Commerce, CA
Honest pricing in Commerce means putting the line items in front of you before demo day. Here’s what we see across the city right now:
| Project | Typical Range in Commerce |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Kitchen Island Installation | $3,000 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What changes the number in Commerce: whether your home is slab-on-grade, whether the electrical panel needs an upgrade, what the county plan check returns, and which material allowances you approve. None of that is a hidden fee. All of it goes into the written price before any work starts. Call (803) 680-2547 to schedule a free estimate. We’ll walk the job with you and give you a line-item price, not a ballpark.
Our crew recently took on a kitchen remodel on a 1950s slab-on-grade home in the Bristow Park area of Commerce, where the existing 110V wiring and galvanized supply lines meant the rough-in had to be re-done before any KraftMaid cabinets went in. We wrote a clear scope of work with allowances for Cambria countertops and Kohler fixtures, pulled the permits so a county inspector could confirm the electrical and plumbing before the walls closed, and walked the homeowner through a punch list after final inspection sign-off. Cabinets, counter, and backsplash all landed within the budget we laid out on the draw schedule, and the family was back in their kitchen in about five weeks.
We Also Serve Cities Near Commerce
Mason Remodeling serves Commerce and the surrounding region. If you’re in Commerce, you’re our home turf. We also take on general contracting projects in Los Angeles, San Diego, San Jose, and San Francisco. Same written pricing, same background-checked crews, same 365-Day Done Right Promise. Call (803) 680-2547 and ask for Isaac Pruett.
Serving Commerce, CA - Our Local Coverage Area
We’re based in the Commerce 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 Commerce
The City of Commerce contracts with LA County for building plan checks and inspections. You pull permits through the county process, not a city counter, which means plan-check turnaround drives your schedule. A contractor who treats that as an afterthought will stall your project. We build the county timeline into every Commerce scope of work. Call (803) 680-2547 to talk through what applies to your project.
A kitchen remodel in Commerce typically runs five to eight weeks from demo to final inspection, assuming the plan check clears without major revisions. A bathroom remodel usually lands in the three to five week range. The variable is the county inspection queue, which is why we schedule inspections early and order materials before the wall comes down. We’ll give you a written calendar with your bid.
The three usual suspects: hidden slab damage, outdated electrical that needs a panel upgrade, and galvanized supply lines that need replacement. That’s why our written price includes real allowances and a site inspection before the bid is final. What should not drive the price up is a contractor who low-balled the allowance to win the job. We don’t do that. Call (803) 680-2547 for an exact quote.
Yes. Any remodel that touches electrical, plumbing, or load-bearing walls needs a permit in Commerce, and the county inspection has to sign off before the walls close. Skipping the permit is a false economy: the rough-in work gets hidden, then the inspector can’t verify it, and you’re re-opening walls later when you try to sell. We pull the permits and schedule the inspections as part of the standard scope.
At minimum: a written scope of work with specific material allowances, the permit and inspection schedule, a milestone-based draw schedule, a written guarantee with stated coverage terms, and a line-item price. If any of those is missing, ask why. Our contracts include all of them, plus the name and photo of the crew lead who will be at your door. Call (803) 680-2547 to schedule your free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Commerce since 2004.










