Whole Home Remodeling in Downey
Most homeowners who ask us about whole home remodeling in Downey want to stay in the neighborhood, not leave it. What they want to change is how the house actually functions day to day. Downey grew fast in the postwar years, and most of the housing stock near areas like Stonewood Center and Rio Hondo reflects that era: single-story tract homes where the kitchen was built as a closed, separate room and the floor plan has not moved since the original owner moved in. A whole home remodel addresses that all at once, shifting walls to open the layout, updating plumbing and electrical through licensed subcontractors we coordinate, and pulling one permit through the City of Downey Building Safety Division to cover the full scope. That is a fundamentally different project from a single-room job, and we approach the planning accordingly from the first walk-through.
Services We Offer
Structural & Seismic Work
Roof, Windows & Envelope
Additions & ADUs
Our Whole Home Remodeling Process in Downey
Whole home remodeling in Downey begins with a thorough walk-through of the entire house before a single drawing is made. Most homes here are postwar single-story tract houses, and years of piecemeal updates can leave the framing, electrical panel, supply lines, and slab in conditions that only a careful look reveals. Where something is in doubt, we investigate first, running a sewer camera, testing textured ceilings for asbestos, or taking a structural look at framing that was altered by a previous owner. Existing conditions and the new layout are drawn together so changes stay on paper, where they are cheap.
Structural engineering and Title 24 energy documents go into one plan set, which we submit to the City of Downey Building Safety Division as a single permit. Because the building code and the age of the house are what govern here, getting that documentation right early keeps inspections on track. Cabinets, tile, flooring, and fixtures are selected at our Fullerton location before demolition starts. Work follows a fixed sequence from structural to rough trades to inspections to finishes, with one project manager carrying the job through final sign-off.
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What a Whole Home Remodel Involves in Downey
Most of the housing stock in Downey dates to the postwar building wave that followed the city’s 1956 incorporation, and those decades-old houses carry specific challenges that show up the moment we open walls. Lead-based paint is a real possibility in any home built before 1978, and contractors who disturb it must follow the EPA Renovation, Repair and Painting rule. Suspect materials like popcorn ceilings, certain older flooring and duct wrap may also contain asbestos, so we test before anything is removed and send any confirmed material to a licensed abatement contractor. Galvanized supply lines and undersized electrical panels are common finds in houses of that era, and a whole home remodel is the right moment to address them, since the walls are already open. Specialty trade portions, including electrical, plumbing and mechanical work, are performed by appropriately licensed subcontractors that we coordinate throughout the project.
Downey’s typical single-story tract home often still has the original closed-off kitchen layout, and opening that wall to the living area is one of the most requested changes we see. Removing a load-bearing wall means an engineered beam, posts and sometimes new footings, all of which have to be detailed in the structural drawings before the City of Downey Building Safety Division will approve the permit. That plan-check process covers structure, plumbing, electrical and mechanical work together, because a whole home remodel touches all of them at the same time. No unusual local overlay applies in Downey, so what governs is the California building code and the age of the house itself. We review both against your scope at the very start, since they can affect exterior materials, setbacks and the review path before a single wall comes down.
Two state requirements come up on nearly every project. California Civil Code 1101.4 requires water-conserving toilets, showerheads and faucets to replace older high-flow fixtures on many permitted remodels of homes built before 1994, so we build that into the fixture schedule from the beginning rather than discovering it at final inspection. California’s Title 24 energy code applies to remodels as well as new construction, and new windows, insulation, lighting and HVAC changes all have to meet the current standards. We prepare the compliance documents with the plans so there are no surprises during review.
Unpermitted additions, enclosed patios and garage conversions from past decades are common throughout Downey neighborhoods, and the city typically requires those structures to be legalized, upgraded or rebuilt before it will sign off on the rest of the house. We identify any of that early so it becomes part of the plan rather than a mid-project problem. If additional living space is a goal, state law allows an accessory dwelling unit on most single-family lots, and planning an ADU alongside the remodel can reduce overall design and permitting costs compared to treating them as separate jobs.
Other Remodeling Services We Offer
A kitchen remodel touches more trades than any other room in the house: layout, cabinetry, plumbing, electrical, ventilation and finishes. Horizon designs and builds kitchen remodels under one contract, from the measured layout to the final inspection.
Whether you envision a classic Southern California pool or a fully customized backyard oasis, Horizon Construction & Remodeling delivers the highest level of quality and service. Our comprehensive pool design and remodeling services cover everything from layout and decking to built-in BBQs and final touches like landscaping. Let Horizon be your trusted partner in transforming your backyard into the perfect outdoor retreat.
If you are planning a complete bathroom remodel or simply want to change your tub, shower, update your plumbing fixtures, or make the space more efficient, our team at Horizon will help you through the process with expert advice, professional craftsmanship, and affordable options with beautiful results. Learn more about our bathroom remodeling services.
Transform your space with our expert interior work services. We offer a comprehensive range of solutions — from space planning and custom design to the selection of high-quality finishes and materials. Our team of experienced professionals works closely with you to create a space that’s both functional and stylish, tailored to your unique needs, goals, and budget. Whether you’re updating a single room or overhauling your entire interior, we bring precision, creativity, and craftsmanship to every project.
At Horizon, we believe your home is more than just four walls — it’s where life happens. It’s the place you relax, gather with family and friends, and create lasting memories. That’s why we offer a full range of exterior work services designed to elevate your outdoor living space. From patios and hardscaping to custom decks and exterior renovations, we help turn your vision into a dream yard that complements your lifestyle and enhances curb appeal.
At Horizon Construction & Remodeling, our expert team includes a dedicated design and planning division that works hand-in-hand with licensed architects and structural engineers. We take care of everything — from detailed plans and blueprints to securing city permits — so you don’t have to deal with delays or red tape. Our goal is to streamline the process and provide a fully approved set of documents that aligns with both your vision and city regulations, saving you time and stress.
Why Choose Horizon Remodeling For Whole Home Remodeling in Downey
Horizon Construction and Remodeling is a licensed and bonded Class B general building contractor, and that classification matters for a whole home remodel in Downey. A Class B license covers the kind of project where structural work, multiple trades, and a single coordinated permit pull all have to move together. We have been doing exactly that work since 2009, and a full remodel of a postwar tract house is precisely what the license was designed for.
Most of the homes we work on in Downey were built in the decade or so around the city’s 1956 incorporation, which means the framing, wiring, and plumbing behind the walls are decades old. Before we talk finishes, we talk honestly about what an older house typically needs once the drywall comes off. Permits for this work go through the City of Downey Building Safety Division, and because no unusual local overlay applies here, the age of the house and the California building code are what set the requirements. We coordinate that process directly so nothing stalls mid-project.
Our design-build structure puts the drawings, engineering coordination, permits, and construction under one contract managed by one project manager. The people planning your floor plan are the same ones talking to the crew building it. Finishes across every room are selected together, so the kitchen, bathrooms, and flooring read as one cohesive project rather than a collection of separate decisions made at different times.
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Whole Home Remodeling FAQ
How is a whole home remodel different from a regular home remodel?
A whole home remodel treats the house as a single system rather than a collection of separate rooms to fix one at a time. Several areas are redesigned together, walls are moved or removed to reshape the floor plan, and plumbing, electrical, and HVAC are updated throughout the structure in one coordinated effort. For postwar tract homes in Downey, many of which have never had their original layouts touched, that kind of full-scope work means everything is drawn, permitted through the City of Downey Building Safety Division, and sequenced so trades move through once without reopening completed work.
What's the difference between a whole home remodel and a complete home renovation?
A remodel and a renovation are not the same thing, though most whole-home projects in Downey end up being both. Remodeling changes layouts and finishes; renovation addresses the house itself, meaning structure, roof, windows, plumbing, wiring, and heating and cooling. In a postwar tract home where those systems have been in place for decades, the two scopes are almost always tied together. We sequence the work so that anything protecting the house comes first, then the systems buried behind walls, then the finishes you see every day.
Do we have to move out during a whole home remodel?
Whether you can stay in your home during a whole home remodel in Downey depends on the scope of work. If the kitchen and every bathroom are being gutted at the same time, or floors and drywall are coming out through the entire house, most families leave during the heaviest phases. In a postwar tract home where the original layout keeps rooms close together, phasing can help, such as keeping one bathroom live and setting up a temporary kitchen elsewhere, though phasing adds time overall. We walk through that trade-off once the plan is drawn.
How long does a whole home remodel take?
How long a whole home remodeling project in Downey takes depends on scope, how fast selections get made, and how smoothly plan check moves through the City of Downey Building Safety Division. Design and permitting can easily match construction in total time, and plan check alone sometimes runs several weeks. In postwar tract houses like those common throughout Downey, hidden conditions behind the walls often add time once framing is exposed. Structural work or an addition stretches the schedule further. We build a timeline specific to your house into every proposal, and getting the drawings started early is the single biggest factor in when you move back in.
Who handles the permit for a whole home remodel in Downey?
Yes, we handle permitting from start to finish. Plan sets, structural engineering, and Title 24 energy documents go to the City of Downey Building Safety Division, and we respond to every plan-check comment until the permit clears. Because most homes here are postwar tract construction, the age of the structure and the current building code are what shape the review, with no unusual local overlay adding extra steps. We then schedule and attend framing, plumbing, electrical, mechanical, and insulation inspections, and we close out the permit at final.
What drives the cost of a whole home remodel?
Whole home remodeling costs in Downey vary too much between projects for us to publish meaningful price ranges, even for houses that are roughly the same size. The biggest cost drivers on a postwar tract home are structural changes like removing a load-bearing wall, relocating a kitchen or bathroom on a slab foundation, the extent of repiping and rewiring the house needs, any lead or asbestos handling, added square footage, and the finish level you choose. Every proposal we put together separates the must-do items from the optional ones, line by line.
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Horizon is a licensed Class B general building contractor serving Downey and the surrounding Los Angeles County communities.