







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Downey
General contractor work in Downey runs $8,000 for a focused roof replacement up to $220,000 for a full ADU construction, with most whole-home projects landing between $45,000 and $130,000 depending on whether we’re tying into existing slab or pouring independent footings. Our crews serve Downey from our Los Angeles metro office, and we know the difference between a city permit path and a county one, which matters more than most homeowners realize until they’re already in escrow on materials.
We answer calls live at (949) 850-9896, day or night. No voicemail, no callback queue, no automated system asking you to press 1 for scheduling. When you’re trying to figure out whether your 1960s ranch on slab can handle a second story or if that garage conversion from the aerospace layoff years will pass inspection, you talk to a person who can get our field supervisor on the line.
Downey’s housing stock is specific. The 1950s – 1970s stucco ranches built for North American Aviation workers were thrown up fast on slab foundations with 100-amp panels and single-pane aluminum windows. Sixty to seventy years later, they’re entering full renovation cycles at the same time property values have climbed enough to justify gut remodels over teardowns. That combination, plus the hidden legacy of unpermitted garage conversions from the 1980s – 90s, means every permit pull carries the risk of a scope change. We build that risk into our written price before any work starts, so you’re not financing surprises.
Why Elmstead Remodeling Is Downey’s Preferred General Contractor Company

Our General Contractor team has worked the Downey market long enough to know which inspector will flag a non-compliant anchor-bolt pattern and which will want to see the original garage conversion permits before signing off on your ADU. That local knowledge saves weeks.
Graham Stein leads our Downey operations with a straightforward rule: every family gets a written price before any work starts, shoe covers and drop cloths on every visit, and a photo of the clean-up before the crew leaves. The 365-Day Done Right Promise covers every completed project. If it’s not done right, we make it right. That’s the longest post-project commitment in our service area, and we put it in writing because we know families with kids and pets don’t have bandwidth for callback drama.
Calls are answered by a live person 24/7. Background-checked, uniformed technicians on every job. Quiet tools during nap and school hours where the equipment allows it. Pet-safe product choices where there’s a choice. These aren’t extras we charge for. They’re the Cedarwell Care Promise, and they apply to every Elmstead project in Downey.
Styles & brands we work with







Remodeling Contractor in Downey
Remodeling Contractor work in Downey means opening walls on homes that were built in a hurry during the aerospace boom and finding surprises: galvanized supply lines, ungrounded outlets, garage conversions framed without footings because nobody thought a permit mattered in 1987. Our job is to scope those risks before we quote, not after we’ve demoed your kitchen.
A typical kitchen remodel in Downey runs $14,000 – $45,000, with smaller kitchens starting at $9,000. Bathroom remodels range $9,000 – $28,000, with compact baths from $5,000. Whole-home remodels, which we’re seeing more of as Downey’s aerospace-era ranches hit renovation age, generally fall between $45,000 and $130,000 depending on whether we’re working around existing slab or cutting in new footings for additions.
Slab-on-Grade Realities
Downey’s ranch homes sit on slab, not raised foundations. That means additions can’t just drop a subfloor over a crawl space. We either tie into the existing slab with engineered connections or pour independent footings. The choice affects cost, inspection path, and how we sequence the work. We decide which path before we write your price, not during framing.
The Unpermitted Conversion Problem
We routinely find garage conversions from the 1980s – 90s aerospace layoff era that were framed inside the original shell with no footings, no permits, no inspection. The moment you pull a permit for an unrelated addition or ADU, that conversion becomes a structural liability that requires mandatory remediation. We check for this in pre-construction planning so it doesn’t become a $15,000 change order.
Licensed General Contractor in Downey

Licensed General Contractor work in Downey carries specific obligations because of where these homes sit: in the seismic influence zone of the Whittier Narrows fault, on slab foundations, with original 100-amp electrical panels and aging stucco that’s seen decades of Santa Ana wind exposure. The 1987 earthquake proved these structures need proper anchoring, and modern code enforces it.
Our licensed work includes roof replacement at $8,000 – $20,000, impact window installation at $8,000 – $25,000, and structural upgrades that many homeowners don’t realize they need until permits are pulled. ADU construction runs $90,000 – $220,000. Garage conversions, when the existing structure is compliant, run $30,000 – $80,000. When they’re not compliant, we quote the remediation separately and in writing before any work starts.
Seismic and Code Compliance
Downey’s location in the Whittier Narrows seismic zone means cripple-wall bracing and anchor-bolt retrofits are frequently mandated on 1950s – 60s framing before permits will close. We build this into our initial scope and price, not as an add-on. Our crews have passed enough Downey inspections to know what each inspector wants to see.
Electrical Service Upgrades
Original 100-amp panels are standard on Downey’s aerospace-era ranches. Most additions, ADUs, or garage conversions require 200-amp service. We coordinate with LADWP or SCE depending on your parcel’s utility zone, and we include the upgrade path in your written quote. No surprises when the electrician opens the panel.
Trusted Brands We Service in Downey
We install cabinets from KraftMaid and Wellborn, countertops from Cambria and Silestone, fixtures from Kohler, Moen, and Grohe, and exterior cladding from James Hardie. These are brands homeowners can research independently, with manufacturer warranties that travel with the finished project. For detached ADUs and outbuildings on larger Downey parcels, we also work with prefabricated unit partners including Abodu and Dvele when the project scope and timeline make sense. Every material choice is documented in your written quote before work starts, so you know exactly what product is going on your walls and floors.
See the difference
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After
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AfterCommon General Contractor Problems We See in Downey Homes
- Slab-on-grade additions with no footing plan. Downey’s ranches were built on slab, so any addition or detached ADU needs either a tied-in slab connection or independent footings. Contractors who quote raised-floor assumptions end up with change orders when the structural engineer rejects the plan.
- Unpermitted garage conversions blocking new permits. That converted garage from 1992 was probably framed without footings. Pull a permit for anything else on the property, and the city will require remediation before sign-off. We identify this in pre-construction so it doesn’t stall your project.
- Santa Ana wind damage to stucco and roofing. Downey runs 5 – 10°F hotter than Long Beach and gets direct Santa Ana exposure. Stucco cracking and accelerated shingle degradation are common. We specify materials rated for inland basin conditions, not coastal assumptions.
- County versus city permitting confusion on edge parcels. Downey properties near the county line can trigger LA County inspection paths instead of city ones. Different forms, different timelines, different fee schedules. We verify jurisdiction before we file.
Pricing for General Contractor in Downey, CA
Here’s what general contractor work costs in Downey’s current market:
| Project Type | Price Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
| Roof Replacement | $8,000 – $20,000 |
| Impact Window Installation | $8,000 – $25,000 |
These ranges assume standard access, city permitting, and no hidden structural remediation. Slab-on-grade tie-ins, footing work, electrical service upgrades, and unpermitted conversion remediation add cost that we identify and quote in writing before any work starts. Every Elmstead project includes the Cedarwell Care Promise: shoe covers and drop cloths, quiet tools during family rest hours where possible, pet-safe products where available, and a photo of the clean-up before we leave. Call (949) 850-9896 for your free estimate.
We Also Serve Cities Near Downey
Our crews work throughout southeast LA County, including Downey and neighboring Bell Gardens, Santa Fe Springs, Paramount, and Bellflower. Each city has its own permitting path and housing stock quirks, and we know the differences because we work them regularly.
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, but the garage conversion will almost certainly require remediation first. Most conversions from that era were framed without footings, and Downey building and safety will flag it when permits are pulled for the ADU. We scope this in our initial site visit and include any foundation work in your written price before we start. Call (949) 850-9896 to schedule a free estimate.
It can. Parcels near the Downey county line trigger LA County permitting and inspection instead of city, with different forms, timelines, and fee schedules. We verify jurisdiction before filing any application. Call (949) 850-9896 and we’ll check your parcel’s authority.
Expect longer material hauls, equipment access planning, and potential grading and drainage work before construction starts. County parcels may also need septic setback verification and well-distance checks if you’re on private utilities. We scope all of this and put it in your written price before breaking ground. Call (949) 850-9896 for a site-specific quote.
Almost always. Most additions, ADUs, and garage conversions in Downey require 200-amp service to handle modern loads. We coordinate the utility upgrade and include it in your written scope. The cost depends on your utility zone and panel location. Call (949) 850-9896 for an exact quote.
We survey the slope, identify drainage patterns, and engineer proper runoff control before any foundation work. On larger Downey parcels, this often means cut-and-fill balancing, French drains, or connection to municipal storm systems. We include this work in your written price, not as a later change order. Call (949) 850-9896 to discuss your lot.
Written by Graham Stein, Owner at Elmstead Remodeling, serving Downey and surrounding communities.











