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 Temecula
We’re Square One Builders, and we handle full-scope residential construction across Temecula, from the 92592 hills of Redhawk to the master-planned streets of Harveston and Paloma del Sol. If you’re planning a kitchen remodel, a room addition, an ADU, or a whole-home renovation here, the single biggest scheduling variable isn’t labor or materials. It’s HOA architectural review. Our team has built enough projects off Rancho California Road and throughout 92590, 92591, and 92593 to know exactly what Temecula HOAs and Riverside County will approve, and we sequence the paperwork so your project doesn’t stall between demo and dry-in. Call (877) 688-9930 for a free estimate.

Why Square One Builders Is Temecula’s Preferred General Contractor Company
Temecula homeowners don’t have time to manage three separate contractors and an HOA submittal. Most of our clients here come to us after realizing their remodel touches structural framing, roofing, windows, and hardscape all at once. Brent Calloway founded Square One Builders on a simple idea: one contractor, every system. We spec materials from brands like James Hardie, CertainTeed, Owens Corning, and Kohler because Temecula’s climate demands exterior products that hold up to 100-plus-degree summers and Santa Ana-driven UV exposure. That matters when a patio cover or deck has to satisfy both a fire marshal and an HOA design committee.
Our local work in Temecula is organized around a simple reality: the paper moves slower than the build. We routinely tell homeowners to expect HOA review to add four to eight weeks to the calendar. The county permit often clears faster. We plan our crews around that gap so framing doesn’t start until everything is signed. That’s not bureaucratic caution. It’s how you avoid a half-finished addition sitting exposed through wind season and a violation notice taped to your front door. When you hire a General Contractor who knows Temecula’s neighborhoods, you’re hiring someone who has already absorbed that lesson.
Styles & brands we work with







General Contractor Services in Temecula
General Contractor Services in Temecula cover every trade on your property under one contract. We handle kitchens, bathrooms, whole-home remodels, room additions, ADUs, garage conversions, decks, roofing, windows, siding, and hardscaping. You don’t chase electricians. You don’t call the cabinet vendor. You don’t wonder whether the roofer got the soffit detail right. We do. For Temecula homeowners, that matters because so many homes here are 1980s and 1990s master-planned builds now hitting replacement age. The stucco’s fine. The tile roof’s fine. But the windows are builder-grade, the kitchen is original, and the patio cover is warped from twenty summers. A full-scope remodel takes all of it at once.
Full-Scope Remodel & Addition Planning
Temecula remodels usually start with a question: can the existing footprint work, or do we add square footage? In Redhawk and Paloma del Sol, lot lines and side yard setbacks often dictate whether a kitchen expansion is a cosmetic job or a structural one. We measure, pull the as-built, check CC&Rs, and give you a written scope before anything gets ordered.

ADU & Garage Conversion Coordination
Riverside County has pushed hard on ADU permitting, and Temecula homeowners are responding. A detached ADU in Temecula typically runs $90,000 to $220,000 depending on size, foundation work, and utility routing. Garage conversions run $30,000 to $80,000. Both trigger HOA review in most of Temecula’s subdivisions, and we handle the submittal packet end to end, including engineering stamps and color boards.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Temecula
As a licensed Construction Company serving Temecula, we take the same scoped, planned, from-the-ground-up approach on every job, whether it’s a $14,000 kitchen update or a $130,000 addition. What changes is the paperwork. Temecula sits inside Riverside County’s WUI (Wildland Urban Interface) zones in several areas, especially the communities off Rancho California Road and the eastern edge of 92592. When we build a deck or patio cover there, the county wants ignition-resistant materials and ember-resistant detailing. The HOA wants a specific color palette and a specific height. We get both, then we build.
Exterior Additions & Hardscape
Paver patios in Temecula run $3,500 to $11,000. Paver driveways run $7,000 to $18,000. The material choice matters here. Pavers that handle freeze-thaw in the Northeast aren’t the issue in Temecula. It’s heat and UV. We spec Belgard and Unilock lines that hold their color through triple-digit summers. And we always check HOA hardscape ratios before you fall in love with a product.
Interior Renovation Under One Roof
Bathroom remodels in Temecula run $9,000 to $28,000. Showers run $3,000 to $8,500 for a replacement. Countertops run $2,000 to $6,500. You can get Cambria or Silestone quartz, Kohler or Moen fixtures, KraftMaid or Wellborn cabinetry. We walk you through the tradeoffs, then we install what we said we would. Your remodel, fully managed.

Trusted Brands We Service in Temecula
Square One Builders works with 50-plus nationally recognized material brands, and for Temecula projects we lean on the ones that solve local problems. Owens Corning and CertainTeed roofing hold up to Riverside County heat and UV exposure. James Hardie siding and trim resist warping and ember intrusion, which matters in WUI zones. IKO and Atlas shingles give budget-conscious Temecula homeowners solid mid-tier options without stepping down to a product that will delaminate in five years. We keep consistent supplier relationships locally so lead times are shorter, and we can pull color samples fast when an HOA wants to see the exact trim tone next to the stucco.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Temecula Homes
- Work started before HOA architectural review was final. We see this often in Redhawk and Paloma del Sol. A homeowner hires a crew, framing goes up, and the HOA issues a stop-work order because the color or height wasn’t approved. The cost to tear out and redo can hit five figures.
- Incomplete HOA submittal packets. A packet without engineering calcs, color samples, or site plans bounces back. Every resubmittal adds two to four weeks. We include stamps, elevations, material specs, and paint chips on the first submission, which is why our approvals average five to seven weeks instead of twelve.
- Ignoring WUI ignition-resistant detailing on decks and patio covers. In Temecula’s fire-prone zones, county inspectors check for ember-resistant gaps, specific railing spacing, and non-combustible or ignition-resistant decking. Build it standard, fail the inspection, and you’re tearing out a brand-new structure.
- Builder-grade materials hitting end of life at the same time. Temecula homes from the 1980s and 1990s share a problem: original windows, original cabinetry, original plumbing fixtures. When one fails, the others aren’t far behind. Planning the scope to address them in one phase costs less than three separate emergency projects.
Pricing for General Contractor in Temecula, CA
Temecula pricing tracks the rest of Riverside County, with HOA paperwork adding time more than money. Here’s what we tell homeowners to budget for the larger structural projects:
| Project | Temecula Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Those numbers shift based on square footage, foundation work, utility runs, and the finishes you pick. A kitchen remodel in Temecula runs $14,000 to $45,000. A small kitchen runs $9,000 to $20,000. Windows across a whole house run $4,500 to $15,000. We give written line-item quotes, not ballpark numbers. Call (877) 688-9930 to schedule a free estimate, and we’ll walk the property and give you the real number.
We Also Serve Cities Near Temecula
Square One Builders is based in Westminster, but our Temecula crews work throughout the valley. We serve Temecula proper plus Murrieta Hot Springs, Murrieta, Rainbow, and Wildomar. Each city has its own HOA culture and permit quirks, and we already know them. If you’re planning a remodel in any of these areas, the free estimate covers the same scope.
Serving Temecula, CA — Our Local Coverage Area
We’re based in the Temecula 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 Temecula
Plan on four to eight weeks, and in some Temecula HOAs it runs longer. Redhawk, Paloma del Sol, and Harveston all have design review committees with different meeting schedules. Some meet monthly, which means a submittal that misses the cutoff waits another cycle. The county permit often clears in three weeks. We sequence the build so approval comes first, then we order materials and mobilize. Call (877) 688-9930 if you want us to check your specific HOA’s calendar.
Most Temecula HOAs approve earth-tone color palettes: warm stucco tones, tan and adobe hues, muted browns, and sometimes a deep charcoal trim. Roofs are almost universally tile or architectural shingle in brown or charcoal tones. Patio covers usually need a stucco finish or a wood-look material that matches the home’s fascia. We pull the color board from your HOA’s approved list before you select anything, so you’re not emotionally attached to a product the committee will reject.
Yes, in the WUI-adjacent zones off Rancho California Road and portions of 92592. Riverside County requires ignition-resistant or non-combustible materials for decking and patio cover assemblies in those areas, plus specific ember-resistant gap and screening details. We build to those codes, and we flag them in the HOA submittal so the committee sees the fire detailing is already baked into the design.
We do. Square One Builders compiles the full packet: site plan, elevations, engineering calcs, material specs, and color samples. Brent Calloway’s team has put together enough of these that we know what gets rejected and why. One clean submittal beats three rushed ones. Call (877) 688-9930 and we’ll start on yours.
No, and you shouldn’t let anyone convince you otherwise. Starting demo or framing before architectural review is final exposes your project to stop-work orders, daily fines, and forced removal of non-conforming work. We saw a Redhawk homeowner eat a $12,000 tear-out because a prior contractor skipped the submittal. We don’t do that. Approval first, always.
Written by Brent Calloway, Owner at Square One Builders, serving Temecula and the greater Riverside County area.