Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across La Habra
If you’re planning a remodel in La Habra and wondering what a good general contractor actually costs here, most full-scope kitchen and bath projects run between $14,000 and $45,000. Wall-opening work on older La Habra homes tends to land closer to the top of that range because of what’s behind the drywall, and we’ll get into exactly why below. Square One Builders has been coordinating full-scope remodels across La Habra’s 90631, 90632, and 90633 ZIP codes long enough to know that the quote you get after a walkthrough can shift once the walls come down. Call (877) 688-9930 to schedule a free estimate, and we’ll walk you through what your specific house will realistically require before any demo starts.

Key Takeaways
- A General Contractor in La Habra handles everything under one contract: structural work, plumbing, electrical, cabinetry, windows, and finish work.
- Remodel pricing in La Habra is shaped by housing age and an unusual jurisdictional split, not just square footage.
- Wall-opening remodels routinely uncover galvanized plumbing, outdated wiring, and non-permitted additions that change the budget unless allowances are written in up front.
- La Habra sits across the Orange County/Los Angeles County line. Permits and inspections can involve two different agencies on one parcel.
- Square One Builders sources 50+ material brands and manages every trade directly, so you’re not chasing five different subcontractors around La Habra.
Styles & brands we work with







Why Square One Builders Is La Habra’s Preferred General Contractor Company
What separates a general contractor worth hiring in La Habra from someone who just subs out every trade? Accountability on the parts nobody sees. We’ve worked on tract homes along Imperial Highway, tucked-back ranches near the Puente Hills, and the tighter lots in 90631 where pre-war framing sits next to mid-century additions. La Habra homeowners keep calling us back because we write the real scope into the contract before demo starts, not after the saw stops. That means allowances for the galvanized supply lines, the single-pane windows you’ll want to replace while the wall is open, and any non-permitted bonus room that has to be corrected before the city will let you pull an addition permit.
We’re led by Brent Calloway, a General Contractor in La Habra-focused builder who has spent years working specifically in these older Orange and LA county border neighborhoods. Our approach is the reason a remodel doesn’t turn into a blame game: one contract, one schedule, one team accountable from the first inspection to the final punch list. And because we spec materials from a portfolio of 50+ vetted brands across every major home system, you’re not stuck choosing between whatever the subcontractor happened to find at a local supply yard and an overpriced boutique option. We help you pick the right roofing, window, cabinet, and countertop brands for your budget and your block.
Construction Company in La Habra
A construction company in La Habra handles the load-bearing work, additions, structural corrections, and exterior systems that keep a house standing and dry. This is the work you need when the project goes beyond aesthetics: a room addition that ties into existing framing, a garage conversion that becomes living space, or a full remodel where walls are coming out and headers are going in. In La Habra, where homes from the 1950s through 1970s dominate the housing stock, construction work often means correcting things that were never built to current code before adding anything new.
Structural Corrections and Additions
On the hillside streets near the Puente Hills, we regularly find older homes with bonus rooms and patio enclosures that were closed in decades ago without permits. Before a home addition can be approved at $45,000 to $130,000, that existing non-permitted work has to be brought up to code or removed. We inspect for it first, price the correction in writing, and tie the draw schedule to inspection sign-off so the project never drifts.
Garage Conversions and Exterior Scope
A garage conversion in La Habra runs $30,000 to $80,000 and counts as construction work because it changes the building envelope. That triggers structural, insulation, and title-24 energy requirements, often on lots where the garage sits right on a zero-lot-line. We manage the full scope, including the window replacement and roofing tie-ins, under one contract.
Remodeling Contractor in La Habra
A remodeling contractor in La Habra takes the interior of an older home and makes it function for the way people live now. Kitchens, bathrooms, whole-home updates, and the fixtures, tile, KraftMaid in La Habra cabinetry, and countertops that go with them fall under this umbrella. In La Habra’s post-war tract homes, a kitchen remodel typically runs $14,000 to $45,000 and a bathroom lands between $9,000 and $28,000, but the final number depends heavily on what opening the walls reveals.
Kitchen and Bath Systems Work
Wall-opening kitchen and bath work is where the La Habra county-line situation matters most. A remodel on one side of a parcel could pull permits from Orange County while the other side needs Los Angeles County sign-off. We sequence the inspections correctly, write the rough-in scope, and don’t let the permit office surprise you halfway through.
Window and Envelope Upgrades During a Remodel
Most 1950s and 1960s La Habra homes still have original single-pane windows. Replacing them during a wall-opening remodel, rather than as a separate job later, runs $4,500 to $15,000 and saves you from tearing into the walls twice. We coordinate the window order with the framing schedule so the replacement happens while the opening is accessible.
Trusted Brands We Service in La Habra
We carry and install materials from nationally recognized manufacturers, not whatever the local supply house has left over. Our roofing portfolio includes CertainTeed and Owens Corning, two of the largest U.S. shingle manufacturers, and we also work with IKO and Atlas when the project calls for a specific fire-resistance or wind rating. For La Habra’s semi-arid foothills climate, where Santa Ana winds and fire-resistant construction are real considerations, we spec the right material for your specific exposure. We keep local parts stocked for common replacements, so a roof or window tie-in during a remodel doesn’t stall while we wait on a warehouse delivery from outside the area.

See the difference
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After
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AfterCommon General Contractor Problems We See in La Habra Homes
- County-line permit confusion. A parcel that straddles the Orange County/Los Angeles County line can require sign-off from two different agencies. Contractors who don’t check the boundary before pulling permits can leave you with an open job site waiting on the wrong jurisdiction’s inspection.
- Unpermitted hillside bonus rooms. Older homes near the Puente Hills frequently have enclosed patios and converted garages with no permit record. Any new addition triggers a review, and that non-permitted space has to be corrected or removed before your permit clears.
- Aging galvanized plumbing and single-pane windows. The 1950s to 1970s tract stock in La Habra means walls that come down often reveal supply lines at the end of their life and windows with zero thermal performance. A contractor who doesn’t write allowances for this work into the contract will hand you a change order surprise.
- Fire-resistance requirements near the foothills. La Habra’s position against the Puente Hills puts some neighborhoods in wildland-urban interface zones. Roofing and siding replacements on those streets must meet stricter fire codes, and we spec materials like CertainTeed and Owens Corning accordingly.
Pricing for General Contractor in La Habra, CA
Here are the ranges we quote for the most common La Habra projects. These reflect the older housing stock and the two-jurisdiction permitting reality here, not a generic Southern California number.
| Project | La Habra Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| Window Replacement | $4,500 – $15,000 |
What moves a La Habra quote most is what’s behind the drywall. We write allowances into the contract for the systems we know these homes tend to have: galvanized plumbing, outdated wiring, single-pane windows, and failed waterproofing at the wet walls. Any surprise we find gets priced and approved in writing before we touch it. Call (877) 688-9930 for a walkthrough quote. Estimates are free, and they’re built for La Habra specifically, so you won’t get a number that turns out to be for a newer stucco box in Irvine.
We Also Serve Cities Near La Habra
Square One Builders works across northern Orange County and the surrounding LA County border cities. If you’re in La Habra or across the line in Fullerton, Brea, Buena Park, or Placentia, the same team and the same full-scope contract apply. Call (877) 688-9930 and we’ll let you know when we can get the first walkthrough on the schedule for your address.
Serving La Habra, CA — Our Local Coverage Area
We’re based in the La Habra 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 La Habra
Yes, in most La Habra homes you can stay through a kitchen or bath remodel, though you’ll want to set up a temporary cooking and bathroom station. We phase the work so you always have one functioning bathroom while the other is under construction, and we seal off the work area with zip walls to keep dust contained. On full whole-home remodels where both bathrooms come out at once, moving out for two to four weeks is usually the right call for the household. Call (877) 688-9930 and we’ll tell you honestly which scenario your scope fits.
We typically schedule the initial walkthrough within a few days of your call, depending on the time of year. La Habra’s mild, wet winters are short enough that exterior stucco and concrete work can proceed most of the year, so we don’t have a hard rain-season shutoff like some mountain markets. The real gating factor is permitting on the county-line parcels, and we build that wait into the schedule up front. Call (877) 688-9930 for a current timeline on your specific street.
Yes. We check the parcel boundary before we write the permit scope, and we manage inspections with both Orange County and Los Angeles County on the La Habra parcels that straddle the line. If a past contractor pulled a single permit on a split parcel, we correct the record before adding new scope. This is one of the most common reasons a La Habra project stalls, and it’s one we handle from the first site visit.
La Habra pricing falls in the same broad range as Fullerton and Brea, but the older 90631 housing stock and the county-line permitting split can push costs toward the higher end of a given range. Homes near the Puente Hills with unpermitted bonus rooms face an extra correction line item that a newer house in a single-jurisdiction city wouldn’t. Call (877) 688-9930 with your address and we’ll give you a range that accounts for your specific block.
Our workmanship carries a written warranty that covers defects in our installation labor, and material warranties come directly from the manufacturers we install, including CertainTeed and Owens Corning for roofing. The specific term depends on the scope and the product line, and we put it in writing before the contract is signed. Call (877) 688-9930 and we’ll walk you through what applies to your project.
Schedule Your Free La Habra Estimate
If you’re planning a remodel in La Habra, the first step is a walkthrough with someone who knows what your specific house will need. We’ll look at the county line, the hillside exposure, the age of the framing, and the systems behind the walls. The estimate is free, written in line-item detail, and specific to La Habra, not a template. Call (877) 688-9930 to schedule yours.
Written by Brent Calloway, Owner at Square One Builders, serving La Habra and the surrounding Orange and LA county border cities.