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 Redlands
Finding a General Contractor who understands Redlands means finding someone who knows what hides behind the walls of a 1920s Craftsman bungalow off Cajon Street or a Spanish Revival near Smiley Heights. We do. Square One Builders has walked through enough vintage Redlands homes to know that the real work often starts where the demolition stops. One accountable team handles the planning, the permits, the trades, and the surprises, so you don’t have to coordinate five different specialists. Call (877) 688-9930 for a free estimate, and we’ll give you a straight answer on scope and cost before any wall opens.

Why Square One Builders Is Redlands’s Preferred General Contractor Company
Redlands homeowners keep calling us back because we bid honestly on houses that rarely cooperate. A whole-home remodel in the 92373 ZIP carries different risks than a new addition in a Redlands Heights subdivision, and we price accordingly. We don’t hand you a vague “allowance” and hope for the best. We open the inspection report first, walk the property with you, and put specific numbers on paper. Over the years, our crew has worked along West Palm Avenue, Lugonia Avenue, and the streets branching off Sunset Drive. When a customer near the University of Redlands asks whether we can match their 1926 window trim during a kitchen expansion, the answer isn’t “we’ll try.” It’s “we’ve done it, and here’s what it costs.” We serve the full city, from the historic core to the newer east-side lots, and we’re usually on site in Redlands within 48 hours of a signed estimate.
Styles & brands we work with







Licensed General Contractor in Redlands
A Licensed General Contractor in Redlands carries the permit responsibility, trade coordination, and code compliance for your entire project, whether that’s a kitchen remodel or a full second-story addition. Homeowners in the 92374 and 92375 ZIPs most often call us when a project spans multiple trades, which means roofing, electrical, plumbing, cabinetry, and structural framing all need one accountable party. The job typically begins with a feasibility walk and permit review. In Redlands, that review matters more than in newer cities. Depending on scope, a kitchen remodel runs $14,000 to $45,000, a bathroom $9,000 to $28,000, and a home addition $45,000 to $130,000.
Our Inspection-First Process
Before we open walls, we inspect what’s behind them. That’s non-negotiable on Redlands properties built before 1950. We check for knob-and-tube wiring, termite damage, undersized framing, and water intrusion at the sill plates. When we open a wall and find something the inspection couldn’t reach, we stop, write the change order with exact pricing, and get your written approval before we spend a dollar. The unknown stays priced, never guessed.
Permit and Preservation Work
The Redlands historic core often triggers design review when you’re adding a second story or expanding a rear elevation on a Craftsman or Spanish Revival home. We handle that review, including massing, setback, and materials submittals. Tree protection and grading permits on old citrus-era lots also fall under our scope, not yours. When mature oak roots run under a future ADU footer, we bring in the arborist’s report before excavation starts, because failing a city inspection over root damage costs weeks, not days.
Residential General Contractor in Redlands
A Residential General Contractor in Redlands manages renovations, additions, and accessory dwelling units on homes ranging from early-1900s bungalows to mid-century tract houses in 92374 and newer hillside customs east of Wabash Avenue. The work often includes foundation inspection, structural retrofit, roof replacement, and interior finish systems. Because Redlands summers run hot and Santa Ana winds stress roofing and exterior cladding, we spec materials that hold up under intense UV exposure and temperature swings. A typical roof replacement runs $8,000 to $20,000, a full ADU $90,000 to $220,000, and a garage conversion $30,000 to $80,000.
Whole-Scope Remodels, One Contract
We’re built for the homeowner who doesn’t want to call a roofer for the roof, a cabinet company for the kitchen, and a separate crew for the patio. Your remodel stays under one contract, one warranty, and one point of contact. From the ground up, we spec the right material for your project, whether that’s a James Hardie siding replacement or a full kitchen reconfiguration.
ADU and Prefab Capability
Most local remodelers can’t touch prefabricated ADUs. We can. Through partnerships with Abodu and Plant Prefab, among others, we handle site prep, foundation work, utility connections, and finish scope for factory-built units on Redlands lots. That’s a real edge in a city where accessory dwellings are the smartest way to add rental income without tearing into a historic primary structure.
Trusted Brands We Service in Redlands
We install and service materials from brands that have earned their reputations. Redlands homeowners choose CertainTeed and Owens Corning roofing when they want a proven asphalt shingle system with strong warranties, and we stock the fast-turn materials needed to keep a Redlands project moving without waiting on out-of-state suppliers. When you need countertops, we’ll walk you through Cambria versus Silestone at different price points, and when it comes to windows, we can spec PGT or Therma-Tru depending on the home’s style and exposure. Your material selection stays intentional, not whatever the supply house had on the shelf.

See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Redlands Homes
- Knob-and-tube wiring found behind plaster walls. Pre-1950 homes near the University of Redlands and the State Street corridor often still carry active or abandoned knob-and-tube circuits. Opening a wall for a kitchen or bathroom remodel without an electrical upgrade plan can stop inspection dead, so we pull the panel history before demo.
- Undersized or notched framing from past plumbing work. 1920s and 1930s homes off West Palm Avenue and Cajon Street regularly show 2×4 framing that a previous plumber notched through the bottom chord to run a waste line. We sister those studs and add the structural repair to the written scope before finish work begins.
- Foundation and drainage issues tied to clay and expansive soils. Redlands sits on clay-heavy soils that swell and shrink with moisture. Winter rains expose grading problems on hillside lots, and older pier-and-beam foundations near downtown often show settlement. We address drainage and foundation scope together, not as an afterthought.
- Preservation review surprises on historic-core additions. A second-story addition on a Craftsman near Smiley Heights can trigger a 6- to 8-week preservation review. Skipping that step kills the schedule. We build the review timeline into the contract from day one.
Pricing for General Contractor in Redlands, CA
Honest Redlands pricing starts with honest assumptions about the house. Below are the market ranges we quote for common projects in the city.
| Project | Typical Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
Your actual number moves based on home age, foundation condition, permit requirements, and finish level. We write allowances for electrical, plumbing, and structural work that reflect Redlands’ older housing stock, not a generic national average. You get a fixed contract, not a disappearing estimate. Call (877) 688-9930 for a free line-item quote, and we’ll tell you exactly where your money goes.
We Also Serve Cities Near Redlands
Beyond Redlands, our crews work regularly in Mentone, Loma Linda, Highland, and Colton. If you’re in a neighboring city and wondering whether we cover your street, call us. We’re the General Contractor in Redlands that the surrounding communities call when they want the same full-scope accountability without crossing into Los Angeles County traffic.
Serving Redlands, CA — Our Local Coverage Area
We’re based in the Redlands 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 Redlands
Because pre-1950 Redlands houses hide wiring, framing, and waterproofing problems that no pre-demo inspection can fully see. Knob-and-tube circuits, termite-damaged sill plates, and notched framing all live behind finished walls. Our contract includes a written allowance for exactly these conditions, and any overage gets priced and approved by you in writing before we touch it. That’s the difference between a change order and a surprise. Call (877) 688-9930 for an exact estimate on your home.
Yes, and in the historic core, it can add significant time. Preservation review on Craftsman and Spanish Revival homes near State Street or Smiley Heights can run 6 to 8 weeks before construction begins. We build that into the schedule from the start, so you’re not staring at an empty shell waiting on a design board. Our permit pulls are handled end to end, including tree protection and grading permits on old citrus-era lots.
We bring in a certified arborist report before any excavation near mature roots, and we install root-protection fencing at the dripline. When a tree falls within the grading permit’s protected zone, we adjust footings and drainage rather than cut roots. Skipping this step fails city inspection and can damage trees that took 80 years to grow. We protect them as part of the job.
You should expect specific allowances for electrical, structural, and plumbing work that reflect your home’s age, not a generic number pulled from national data. The contract should name the brands being installed, list permit responsibility, and explain how change orders get priced and approved. We write our contracts that way. Fixed pricing with written approvals, no verbal handshakes.
Yes. We manage preservation review submittals, design-phase drawings, and full construction scope under one contract for Redlands’ historic properties. Whether you’re adding a rear expansion to a Craftsman near the University of Redlands or renovating a Spanish Revival kitchen off West Palm Avenue, we carry the project from first drawing to final inspection. Call (877) 688-9930 to schedule a walkthrough.
Written by Brent Calloway, Owner at Square One Builders, serving Redlands since day one.