







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Downey
Finding a General Contractor in Downey who understands what your home is up against takes some digging. The houses here, most built between the 1920s and the 1950s, sit on expansive clay that moves with every wet winter and dry summer. That means cracked slabs, shifting footings, and permits that demand more than a city stamp. We coordinate our Downey work from the brand’s Los Angeles office, but the crews live and stage locally, so we know the inspectors, the soil reports, and the retrofit triggers on pre-1940 bungalows before we ever quote a job. If you’re weighing a remodel, an addition, or a detached ADU, call (562) 512-7086 and we’ll walk you through what your specific lot will ask of us.
Why Elmstead Remodeling Long Beach Is Downey’s Preferred General Contractor Company

Downey families hire us because we treat the job like it’s happening at our own house, with drop cloths down, shoe covers at the door, and a crew that asks before moving the stroller or the dog bed. Graham Stein leads the team, and his rule for every Downey project is simple: leave the home in better shape than we found it. That means the living room floor is swept before the crew leaves, and you get a photo of the clean-up before we lock up.
Our General Contractor team carries a 365-Day Done Right Promise on every completed project. If something isn’t right after the job is finished, we come back and make it right. That promise is stamped on the written price you receive before any work starts, not after the crew has already torn into the subfloor.
When you call, a live person answers. Not a voicemail, not a bot. Early morning, late evening, Saturday afternoon, a real human picks up and starts figuring out how to help.
Styles & brands we work with






Construction Company in Downey
A Construction Company in Downey has to account for things a contractor in Bellflower or Artesia rarely deals with. City limits here stretch across old alluvial ground, and lots on the eastern edge of town often fall under county jurisdiction for septic and well systems. Before we quote any detached structure, a shop, a garage, or an ADU, we check whether the parcel is on city sewer or county septic, and whether the home predates 1940, because that changes everything about the permit path and the foundation design.
What does the work involve for a Downey homeowner? Typically a room addition or a detached structure, scoped with a written price before anything gets torn up. You’ll see ranges like $45,000 to $130,000 for a home addition and $90,000 to $220,000 for a detached ADU, depending on what the soils report says and which inspections the county wants.
Foundation and Seismic Scope
Downey’s clay soil expands and contracts hard between seasons. On any new detached structure, the geotech report often calls for helical piers or over-excavation, a requirement many surrounding cities with sandier soils never trigger. On pre-1940 homes, the county typically demands a full seismic retrofit on the existing structure before we add square footage. That means anchor bolts, shear panels, and possibly foundation replacement, before the new room is even framed.
Septic, Well, and Grading Work
Many Downey acreage lots on the edges of town run on wells and septic systems, which means county permitting, percolation tests, and setback checks before we pull a city permit. We also plan the grading and drainage on a flat lot, because without a proper swale or French drain, the new slab floods after the first winter rain. We scope drainage into the written quote, not as a surprise line item later.
Remodeling Contractor in Downey

As a Remodeling Contractor in Downey, we spend a lot of time working inside homes that still have original knob-and-tube wiring, galvanized plumbing, and foundations poured without rebar. A kitchen remodel here isn’t just cabinets and countertops. It often means re-wiring the whole room, re-piping the sink wall, and sometimes leveling the floor before the new tile goes down. That’s why our written price comes before any work starts, so the family isn’t blindsided when the walls come open and the old wire shows up.
The job itself varies. A bathroom remodel in Downey runs $9,000 to $28,000, a small kitchen $9,000 to $20,000, and a full kitchen $14,000 to $45,000. What drives cost is the condition of what’s behind the drywall, plus whether the layout moves plumbing or structural walls. We use named-brand materials you can verify yourself, KraftMaid and Wellborn cabinets, Kohler and Moen fixtures, Cambria and Silestone countertops, so the manufacturer warranty travels with the finished room.
Whole-Home Work
Whole-home remodels touch every system. We coordinate rough-in inspections, bring the electrical up to current code, and often add shear wall to bring the entire structure into compliance. Quiet tools during nap and school hours, pet-safe products where there’s a choice, and a photo of the cleaned-up job site before we leave are all part of the Cedarwell Care Promise on every project.
Bathroom and Kitchen Scope
In Downey’s older ranch homes, a bathroom remodel frequently means removing original cast-iron tubs and tackling floor rot beneath. We quote for what we can see and tell you honestly what we might find. The price goes in writing before demolition. The crew doesn’t ask for more money after the fact.
Trusted Brands We Service in Downey
Downey customers often ask what materials we install, because they want to research the brand before it’s in their house. We work with cabinets from KraftMaid and Wellborn, countertops from Cambria and Silestone, fixtures from Kohler, Moen, and Grohe, and exterior products from James Hardie. For hardscape work on Downey lots, we source pavers from Techo-Bloc and Cambridge Pavers, and concrete products from Quikrete. Our local staging means we keep common sizes and finishes in stock for Downey jobs, which keeps replacements and punch-list items moving without a two-week wait.
See the difference
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AfterCommon General Contractor Problems We See in Downey Homes
- Expansive clay under the slab. Wet winters swell the soil and dry summers shrink it. That movement cracks concrete, throws doors out of square, and opens hairline fissures in the garage floor. We check the soils report before planning any foundation-touching work.
- Seismic retrofit triggers on older homes. Add a bedroom to a 1930s bungalow and the county may require a full retrofit of the existing structure. Budget and schedule both move. We flag this before you sign anything, so you’re not discovering it mid-permit.
- County septic and well jurisdiction. Lots on the eastern edge of Downey often fall under county rules for septic and wells. A contractor who pulls only a city permit may get a stop-work order. We verify jurisdiction on every lot before we quote.
- Flat-lot drainage failures. On alluvial ground, water doesn’t run off by itself. A new patio or outbuilding slab without a swale or French drain will hold water against the foundation after the first winter rain. We scope drainage as part of the quote, not as an afterthought.
Pricing for General Contractor in Downey, CA
These are the actual ranges we quote in Downey. Every number below is the written-price range you’ll see before work starts, scoped for this city’s permit environment, soil conditions, and older housing stock. The free estimate call gets you exacts.
| Project Type | Typical Downey Price Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
What moves the number? Soil reports that require helical piers, county septic setbacks, pre-1940 seismic retrofits, and long material hauls on acreage lots. We scope all of that before we quote. Call (562) 512-7086 for a free estimate and a written price.
We Also Serve Cities Near Downey
Our General Contractor in Downey work takes us into the surrounding neighborhoods regularly. We serve Paramount, Bellflower, Artesia, and La Mirada with the same written-price promise and 365-Day Done Right Promise. If you’re on the edge of Downey and not sure who covers your street, call (562) 512-7086.
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 many cases. Lots on the eastern edge of Downey often sit on county-governed septic and well systems, so a detached garage or shop requires both city and county sign-off. We verify jurisdiction before quoting, because pulling only a city permit can lead to a stop-work order.
Expansive clay means the geotech report often requires helical piers or over-excavation under the new foundation. That can add several thousand dollars to the scope compared to a build on sandier soil. We scope it into the written quote, so the price reflects Downey soil conditions from day one, not after the report comes back.
We check septic and well setbacks, percolation rates if the property isn’t on city sewer, the depth and composition of the expansive clay layer, drainage and grading on the lot, and whether the main home predates 1940. One of our recent ADU builds off Imperial Highway needed helical piers after the geotech report showed 14 feet of expansive soil, and we ran the perc test before we could even pull permits. All of that was in the written price before framing began.
Very likely, yes. Downey inspectors commonly require a full seismic retrofit on any addition to homes built before 1940. That means anchor bolts, shear panels, and possibly foundation work on the existing structure, in addition to the new square footage. We flag it before you sign, so the budget includes it from the beginning. Call (562) 512-7086 and we’ll pull the records for your specific address.
We plan for the haul. That means staging materials on the lot in the order they’ll be installed, using tracked equipment when winter rain turns the loamy clay slick, and scheduling deliveries so the crew isn’t waiting on a truck stuck at the gate. We scope equipment access and material logistics into the written quote, so acreage work doesn’t cost more than the number you approved.
Written by Graham Stein, Owner at Elmstead Remodeling Long Beach, serving Downey and the surrounding area.











