







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Downey
Most Downey homeowners asking about a General Contractor want the same three things before anything else: who is coming to their door, what the job will cost in writing, and what happens if something goes wrong. We answer all three before we ever ask for a signature. Mason Remodeling runs crews into Downey from our Los Angeles metro office, so scheduling is local and response is measured in days, not weeks. If you’re planning a kitchen remodel, a room addition, or a whole-home update in Downey, call (803) 680-2547 and you’ll get a live person who can talk scope, permits, and honest pricing right then.
Here is the short version of how we work in Downey. You get a written price before any work starts. You get the name and photo of every technician before they arrive, and that technician shows a photo ID badge at your door. And every completed job carries our 365-Day Done Right Promise: if the work is not right within a year of completion, we make it right at no cost to you. That is the Downey standard we work to, and it is in writing on every project.
Why Mason Remodeling Is Downey’s Preferred General Contractor Company

Downey homeowners tend to call us for the same reasons. This is a city of mid-century tract homes, many built in the 1950s and 1960s and still owned by the same family for decades. Those homes hide conditions that a walkthrough cannot reveal: cast-iron drain lines under the slab, aluminum wiring behind the drywall, and walls that are doing more structural work than anyone assumed. We budget for discovery in Downey because the housing stock almost guarantees it. Our crews know what a 1962 Downey foundation looks like when you open it, and that changes how we write the scope, the schedule, and the price.
Isaac Pruett leads our Downey work, and every person on his crew carries the Threshold Standard: background-checked, identity-verified, in a clean marked uniform, ID badge on arrival, introduced by name and photo before the visit. You will never wonder who is walking up your driveway. Homeowners in Downey, especially those home alone or with young kids, have told us the photo-before-arrival policy is the reason they felt comfortable hiring us over a faceless estimate. It costs you nothing, and it is never waived.
Our reputation in Downey is built on written pricing and written guarantees, not on handshake verbal estimates. Every quote we deliver is a fixed written price. If something hidden changes the scope mid-project, you get a written change order with a signed price before we proceed. No surprise invoices. No “we’ll settle up at the end.” That is why Downey references keep coming back for the second project, the addition after the kitchen, the ADU after the bathroom.
Styles & brands we work with







Construction Company in Downey
Hiring a Construction Company in Downey means bringing in a licensed firm that manages permits, crews, subcontractors, inspections, and the calendar, so you are not coordinating six different trades yourself. For a Downey homeowner, most construction work falls into two buckets: structural changes like room additions, load-bearing wall removal, or an ADU, and full-scope remodels that touch electrical, plumbing, and framing at once. On the structural side, a Downey home addition runs $45,000 to $130,000 depending on foundation work, roofline, and whether you are adding a bathroom or kitchen into the new footprint. An ADU in Downey runs $90,000 to $220,000 citywide, and a garage conversion runs $30,000 to $80,000.
Structural work done to code
Downey pulls permits through the city’s Building and Safety division, and structural work will not pass without a plan review and inspections. We handle that end to end. That means drawing the scope, submitting for permit, scheduling the inspector, and standing with you at final sign-off. A Downey inspector will look at the framing, shear wall, foundation tie-downs, and the rough-in before drywall goes up. If a wall is load-bearing, we bring in a structural engineer and add the beam with the permit in hand, not after the fact.
Hidden conditions in mid-century Downey homes
This is the part no one sees on the estimate from a less experienced bidder. Downey’s 1950s and 1960s houses often have cast-iron waste lines that are near the end of their life, aluminum branch wiring that does not meet current code for new circuits, and framing that was fine for its era but undersized by today’s standards. When walls open, those conditions come out. A good construction company in Downey budgets for that discovery in the original price. A bad one prices the visible finish only and turns every surprise into an angry change order. We price the realistic job.
Remodeling Contractor in Downey

A Remodeling Contractor in Downey handles the scope you can touch and walk through: kitchens, bathrooms, flooring, cabinets, counters, and the finishes that turn a dated 1960s floor plan into something current. In Downey, a full kitchen remodel runs $14,000 to $45,000, with smaller kitchens landing between $9,000 and $20,000. A full bathroom remodel in Downey runs $9,000 to $28,000. Those are honest ranges for this market, and they include the discovery work that older Downey homes require. If a contractor quotes you a kitchen remodel for $6,000 in Downey, that quote is missing something, usually the permit, the rough-in, or the contingency.
Kitchen remodels that fit the original floor plan
Downey kitchens from the 1950s and 1960s were built compact. The galley layout near Furman Park, near Downey Avenue, near Stonewood Center, those are real 9-by-11-foot footprints with a load-bearing wall sitting right where you want to open the space. We plan remodels around that reality. Sometimes the right answer is a beam and an open plan. Sometimes the right answer is keeping the wall and reworking the cabinet layout to gain usable space without touching structure. Either way, we show you the written price for both options before you choose.
Bathrooms with old rough-in
The 1950s Downey bathroom usually has a cast-iron tub drain set in a concrete slab, a valve rough-in that does not match any modern fixture, and a subfloor with decades of moisture around the toilet flange. We budget the tub-to-shower conversion or vanity install around that reality, because we have opened enough Downey slabs to know what is underneath. You get a written line-item price that already accounts for the drain, the valve, and the subfloor repair, so the number you sign is the number the job matches unless you change the scope yourself.
Trusted Brands We Service in Downey
When a Downey job calls for a factory-built ADU or a panelized addition, we work with the brands homeowners ask about: Dvele, Abodu, and Mighty Buildings. These are specification-grade building systems, and we know how to prepare the Downey site for them: foundation, utilities, setbacks, and the city’s plan check. Inside the home, we install KraftMaid and Wellborn cabinetry, Cambria and Silestone surfaces, and Kohler, Moen, and Toto fixtures, all covered under our project guarantee. Because we order from distributor relationships, Downey customers get real lead times, not a showroom guess. Fast, accurate material availability matters when your kitchen is torn apart and you are washing dishes in the bathroom sink.
See the difference
Before
After
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After
Before
AfterCommon General Contractor Problems We See in Downey Homes
- Aluminum wiring behind mid-century drywall. Downey homes built before 1972 often have aluminum branch circuits. Modern kitchens and baths need dedicated 20-amp circuits with copper, and the inspector will require the panel work to match. We price that so you do not learn about it mid-rough-in.
- Cast-iron drain lines at the end of their life. A 1958 Downey slab hides cast-iron waste pipe that corrodes from the inside out. When a bathroom remodel opens the floor, that pipe is exposed, and replacing it before the tile goes down is cheaper than after. We show you what we found and get your sign-off before any extra work happens.
- Surprise load-bearing walls in galley kitchens. A wall that looked non-structural on the original Downey floor plan turns out to be carrying the roof or the second story. We saw this at a kitchen remodel near Furman Park: a family wanted the galley opened to the dining room, and the wall was load-bearing. We pulled the permit, brought in the engineer, added the beam, and finished on schedule because the contingency was already in the written price.
- Unpermitted prior work from decades ago. We open Downey walls and find electrical or plumbing that was never permitted in the 1980s or 1990s. At resale or refinance, the buyer’s inspection flags it. We bring that rough-in up to current code and gets it signed off, so the finished project is legitimate from the studs out.
Pricing for General Contractor in Downey, CA
Downey’s mid-century housing stock means honest pricing has to include discovery. The visible finish is not the only cost, and any Downey contractor who prices only the surface is setting you up for a change-order fight. Here is what we see in the current Downey market:
| Project Type | Typical Downey Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the number in Downey specifically: whether you have a slab or raised foundation, whether the original cast-iron drain is still in service, whether the wall you want to remove is carrying load, and whether your panel has room for the new circuits. We put every one of those line items in writing before work starts. Call (803) 680-2547 for a free estimate and a written price on your exact scope.
We Also Serve Cities Near Downey
Our crews serve Downey and the surrounding communities, including Bell Gardens, Santa Fe Springs, Paramount, and Bellflower. If you are in one of those areas and planning a remodel or addition, the same written pricing and Threshold Standard apply. Call us and we will schedule a time to walk your home and build the scope.
Serving Downey, CA - Our Local Coverage Area
We’re based in the Downey 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 Downey
Yes, in most cases. Downey requires permits for any remodel that touches electrical, plumbing, structural framing, or changes the footprint of the home. The city’s Building and Safety division will review the plans and inspect the rough-in and final work. We pull permits for every Downey project that requires one, and we never ask a homeowner to skip the permit to save a few hundred dollars, because the unpermitted work will catch up to you at resale or refinance. Call (803) 680-2547 and we’ll tell you exactly what your project will trigger.
A full kitchen remodel in Downey currently runs $14,000 to $45,000, and a smaller galley-style kitchen in a mid-century Downey home typically lands between $9,000 and $20,000. The range is driven by whether you are moving plumbing, removing a load-bearing wall, replacing the cast-iron drain rough-in, and how far up the finish ladder you go on cabinets and counters. We give you one written price for the whole scope, not an estimate. Call (803) 680-2547 for a free, itemized quote on your Downey kitchen.
Because the home is from the 1950s or 1960s and the wall you opened hid something the original quote did not include. This is the most common frustration we hear from Downey homeowners who hired a contractor without a discovery contingency. The cast-iron drain is rotten, the wiring is aluminum, the wall is load-bearing. With us, those conditions are priced into the written quote from the start, and if something truly new appears, you get a written change order with a signed price before we proceed. You never pay for something you did not approve. Call (803) 680-2547 and we’ll show you a sample scope for a Downey home like yours.
A standard Downey bathroom remodel takes about 3 to 5 weeks from demo to final inspection, assuming the permit review goes smoothly and no structural surprises push the sequence. A mid-century Downey bathroom with a slab foundation and cast-iron drain takes longer than a 1990s tract bathroom that opens clean, because the rough-in work under the slab adds days. We give you a written schedule alongside the written price, and we tell you which Downey inspection points will pause the work. Call (803) 680-2547 for a realistic timeline on your exact bathroom.
We handle both. Mason Remodeling is a full-service General Contractor in Downey, which means we manage the design, the permit drawings, the demo, the rough-in, the finishes, and the final inspections under one written contract and one written price. You do not need to hire a separate designer and then find a contractor to build it; we do the whole thing with one point of contact, one schedule, and one guarantee. Call (803) 680-2547 to talk through your Downey project start to finish.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Downey since 2004.










