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 Hesperia
If you own a home in Hesperia built between the 1980s and early 2000s, you already know the score: those tract homes and custom builds went up fast, and two decades of High Desert wind and sun don’t do them any favors. We’re Square One Builders, and General Contractor work here isn’t a side hobby for us. It’s what we do every day. From re-roofing off Main Street to full room additions out by the Mesa, our crews know what Hesperia construction actually requires.
Need someone who’ll answer the phone and show up when they say they will? Call (877) 688-9930. Brent Calloway runs every project personally, from the first walkthrough to the final inspection. No runaround, no subcontracted chaos, no “that trade isn’t my problem.”
Why Square One Builders Is Hesperia’s Preferred General Contractor Company
Hesperia homeowners hire us because we do something most contractors won’t: we take accountability for the whole job. One contract, one team, one person you call when you have a question. Brent Calloway has walked hundreds of High Desert properties, and he knows what’s behind the stucco before we open it up. That local knowledge isn’t a talking point. It’s what keeps your remodel from turning into a six-month money pit.
Our Hesperia customers appreciate that we don’t farm out the hard parts. Framing, roofing, windows, cabinets, counters, plumbing fixtures, siding, hardscaping, even prefab ADUs. We manage all of it. When a homeowner in Spring Valley Lake calls about a garage conversion, and a homeowner off Ranchero Road calls about a kitchen remodel, they’re talking to the same accountable team.
We work across 92340, 92344, and 92345, and we plan Hesperia projects around the reality of desert weather. That means ordering materials that can sit in the wind and not warp, scheduling stucco and paint before the summer heat turns work sites into an oven, and knowing when the freeze will hit Oak Hills at night even when Victorville stays mild.
Styles & brands we work with
Licensed General Contractor in Hesperia
A Licensed General Contractor in Hesperia takes on the work that most homeowners shouldn’t attempt: structural changes, room additions, re-roofing, electrical and plumbing rough-ins, and any remodel that involves opening walls or moving load-bearing elements. In California, if the project exceeds $500 in labor and materials, you’re legally required to use a licensed contractor. We’re state-licensed and insured, and we pull permits on every Hesperia job where they’re required, including all work in 92344 and 92345.
Full-Scope Remodels
When a Hesperia homeowner wants a kitchen gutted and rebuilt, or a bathroom turned into a walk-in shower with new framing and waterproofing, that’s our bread and butter. We handle the demo, the rough-in, the finish work, and every trade in between. You don’t hire a separate plumber and then find out the tile guy won’t touch the shower pan. The whole thing is ours.
A typical kitchen remodel in Hesperia runs $14,000 – $45,000. A bathroom remodel lands between $9,000 and $28,000. Those are real numbers for this market, not national averages.
Permits and Inspections
We pull the permits for every structural, electrical, and plumbing change in Hesperia. That includes room additions, garage conversions, and any window or door opening that changes the framing. When the inspector from the City of Hesperia shows up, we’re there. When something needs a correction, we fix it before it becomes your problem.
Residential General Contractor in Hesperia
A Residential General Contractor in Hesperia handles everything from a single-room refresh to a whole-home modernization of a 1985 tract house. The biggest job we see out here is the sprawling addition: a master suite off the back, a shop or garage attached to the side, a patio cover that actually survives the wind. Hesperia’s large lots in 92344 and 92345 make those additions feasible, and they’re often the smartest way to add usable square footage without selling.
Home Additions and Garage Conversions
A home addition in Hesperia runs $45,000 – $130,000 depending on size, foundation work, and whether you’re adding a bathroom or kitchen. Garage conversions land in the $30,000 – $80,000 range, and we coordinate everything from the slab to the insulation to the new electrical panel. If you’re thinking about an ADU, those run $90,000 – $220,000 out here, and we work directly with prefab partners like Abodu, Dvele, and Boxabl when a factory-built structure makes more sense than stick framing.
Kitchens, Bathrooms, and Interior Systems
When we open up a Hesperia kitchen, we’re looking at more than cabinets and countertops. We spec material brands that hold up to desert dryness and temperature swings. Cambria and Silestone for counters. KraftMaid and Wellborn for cabinets. Kohler and Moen for fixtures. Every material choice gets matched to your budget and to the reality of a High Desert home, not a showroom floor in Irvine.
Trusted Brands We Service in Hesperia
We work with more than 50 nationally recognized material brands, and Hesperia homeowners get the benefit of that portfolio without having to visit ten different suppliers. Need a roof that can take 60-mph gusts off the Cajon Pass? We quote GAF, CertainTeed, and Owens Corning. Need siding that won’t bake and crack in July heat? James Hardie fiber cement is in our lineup. Windows that seal tight against the wind? PGT and Therma-Tru. We keep the brands local. We know which ones hold up in Hesperia, and we don’t spec anything we wouldn’t put on our own place. Call (877) 688-9930 to talk through what fits your project.
Common General Contractor Problems We See in Hesperia Homes
- Aluminum wiring from the 1980s boom. We find it behind walls in Hesperia tract homes more often than not. It’s not automatically dangerous, but it doesn’t play well with modern fixtures and panels, and it fails in ways copper doesn’t. We upgrade to copper during any serious remodel.
- Undersized 2×4 framing on load-bearing walls. Opening up a kitchen off Main Street and finding a header that was never engineered for today’s snow and wind loads happens weekly. We add properly sized headers and shear wall per current High Desert code.
- Caliche and sandy soil wreaking havoc on slabs and footings. Hesperia sits on hardpan caliche in a lot of spots, which drains poorly and expands with temperature swings. We see slab cracks and foundation movement that surprise homeowners who thought their lot was stable.
- Failed waterproofing around windows and doors. High Desert wind drives rain sideways, and older flashing fails after twenty years. We re-flash, re-seal, and often re-stucco around openings where water has been sneaking in behind the lath.
See the difference
Before
After
Before
After
Before
AfterPricing for General Contractor in Hesperia, CA
Here’s what we tell Hesperia homeowners when they ask what a project costs. A kitchen remodel runs $14,000 – $45,000. A bathroom remodel lands between $9,000 and $28,000. Bigger structural work shakes out like this:
| Project | Typical Hesperia Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the number? Foundation work on caliche soil, the condition of your existing electrical and plumbing, and whether the city requires engineered plans for your specific lot. We write allowances into every contract for hidden issues, because in Hesperia there are always hidden issues. When we find something, you see a price in writing before we touch it. Estimates are free. Call (877) 688-9930.
We Also Serve Cities Near Hesperia
Hesperia is our home base for High Desert work, but we regularly run crews through Oak Hills, Mountain View Acres, Spring Valley Lake, and Victorville. Same team, same accountability. If you’re a few minutes down Bear Valley Road or up over the hill in Oak Hills, we’re already in your neighborhood.
Serving Hesperia, CA — Our Local Coverage Area
We’re based in the Hesperia 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 Hesperia
Expect surprises behind the drywall, and expect us to handle them calmly. Most Hesperia homes from the 1980s and 1990s have aluminum branch wiring, 2×4 interior framing, and insulation that’s settled or blown out. None of that is a dealbreaker, but it means your remodel plan needs allowances for electrical upgrades, framing corrections, and insulation replacement. We walk through all of this during the estimate, not after demolition starts. The difference is that you’ll have a real budget, not a wishful one. Call (877) 688-9930 to schedule a walkthrough.
We inspect first, then we write allowances into the contract for the things we can’t see until walls are open. If we find aluminum wiring or an undersized header, you get a written change order with a firm price before we do anything. No surprises at the draw schedule, no “we already opened the wall so you have to pay it.” Brent Calloway personally signs off on every change order. You approve it in writing, or the work doesn’t happen. That’s how a Hesperia remodel stays on budget.
Yes, we pull permits for every room addition, garage conversion, and structural change in Hesperia. The City of Hesperia requires plans, engineering where applicable, and inspections at multiple stages. We handle all of it. Homeowners who skip permits end up with uninsurable additions and a mess when they try to sell. We do it right the first time, and the inspections pass because the work was done properly. Call (877) 688-9930 to talk through what your specific addition would involve.
The biggest reason is hidden conditions inside the walls: aluminum wiring that needs a panel upgrade, framing that doesn’t meet current code, water damage behind old stucco, or foundation issues from caliche soil. Most of those are invisible until you open things up. That’s why we inspect carefully during the estimate and write specific allowances into your contract. If we don’t use the allowance, you don’t pay it. That’s a better deal than a contractor who quotes low and then ambushes you with change orders. Call (877) 688-9930 for an exact quote. Estimates are free.
Yes, and we’re one of the only general contractors in Hesperia doing both stick-built and prefabricated ADUs. A garage conversion runs $30,000 – $80,000. An ADU runs $90,000 – $220,000 depending on whether you go site-built or prefab through partners like Abodu, Dvele, or Boxabl. Hesperia’s large lots in 92344 and 92345 make ADUs especially viable, and the city has been streamlining permits for accessory units. We handle the site work, foundation, utilities, and finish. Call (877) 688-9930 to discuss which route fits your lot and budget.
Call Square One Builders for Your Hesperia Project
If you’re planning a remodel in Hesperia, start with a real conversation about what’s behind your walls. We’ll walk your property, open up what needs opening, and give you a written estimate with actual prices, actual allowances, and a plan that accounts for the High Desert realities. No vague promises. No finger-pointing between trades. Just one contractor, every system, from the ground up.
Call (877) 688-9930 to schedule your free estimate.
Written by Brent Calloway, Owner at Square One Builders, serving Hesperia and the High Desert since day one.