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
Trusted General Contractor for San Bernardino Homeowners
Hiring a general contractor in San Bernardino means putting the roof, the kitchen, the windows, the bathroom, and the driveway in one set of hands. When that works, the project runs clean. When it doesn’t, you’re the one calling a roofer about a leak the window crew says isn’t their fault. San Bernardino Contractors, led by Ruben Castillo, exists so you don’t have to play that game. We’re licensed and insured, we work across the entire home, and we carry relationships with over 50 named manufacturers, from GAF roofing to Cambria quartz to Kohler fixtures. Whether you’re planning a full kitchen remodel in the Arrowhead foothills or adding an ADU off Highland Avenue, call (855) 473-5620 and we’ll walk the property with you.

Construction Company
A construction company is the entity that takes your project from a drawing or a conversation to a finished, permitted structure. You need one the moment the work requires multiple trades, structural changes, or a permit pulled with the City of San Bernardino. San Bernardino Contractors operates as a full-service construction company, which means framing, drywall, roofing, electrical coordination, plumbing, and finish work all flow through one crew instead of five bosses. Typical projects run from a $3,500 tub-to-shower conversion up to a $220,000 ADU, depending on scope, finish level, and site conditions.
Permitting and Structural Work
Any project touching load-bearing walls, rooflines, or square footage triggers San Bernardino city plan checks and inspections. We handle those submittals, schedule the inspections, and make sure the work passes the first time.
Multi-Trade Coordination
A kitchen remodel pulls in a plumber, electrician, cabinet installer, countertop fabricator, and tile setter. Our bid accounts for all of them, and our schedule sequences them so you never wait three weeks for a tradesperson to show up.
Styles & brands we work with







Remodeling Contractor
A remodeling contractor specializes in transforming existing spaces rather than building new ones from the ground up. You need one when the footprint stays the same but the function, flow, or finish level has to change. San Bernardino Contractors has remodeled kitchens, bathrooms, entire exteriors, and just about every room in between across the Inland Empire. On a San Bernardino remodel, expect a $14,000 to $45,000 kitchen or a $9,000 to $28,000 bathroom, with smaller refreshes like a $800 to $3,000 vanity install or $800 to $2,500 backsplash fitting the lower end.
Kitchen and Bath Overhauls
These are our most requested remodels. We demo down to studs where needed, reconfigure plumbing and electrical, and rebuild with the cabinets, countertops, and fixtures you actually picked by brand, not just by color.
Exterior Remodels
A siding replacement in James Hardie fiber cement, new Therma-Tru doors, or a paver patio in Belgard exceeds what most kitchen remodelers touch. We run those projects in-house because the home extends past the back door.
Licensed General Contractor
A licensed general contractor holds the state credential authorizing them to contract, pull permits, and manage work over $500 in California. You need that license for any project with structural scope, and any contractor without it puts your project and your liability at risk. San Bernardino Contractors is a licensed general contractor serving San Bernardino homeowners, and we carry insurance on top of the license. For a broader look at what to expect, see The Complete General Contractor Guide for Fontana Homeowners. Our project pricing reflects that accountability, from a $7,000 paver driveway to a $45,000 to $130,000 home addition handled start to finish.
License Verification
We encourage every homeowner to check any contractor’s license on the CSLB website. Ours is current, our bond is active, and no homeowner should move forward with anyone who hesitates when you ask for the number.
Accountability Beyond the Contract
A licensed GC who runs the whole job owns the whole job. If a plumbing rough-in is off, there’s no room arguing about whose fault it is. That’s the point of hiring one licensed contractor, not a stack of subcontractor agreements.
Residential General Contractor
A residential general contractor manages construction and remodeling exclusively on homes, from single-family houses to backyard ADUs. You need one when the job involves living spaces, family schedules, and materials that have to look as good as they function. San Bernardino Contractors is a residential general contractor first, and we’ve rebuilt kitchens in older San Bernardino neighborhoods where the framing is 60 years old and nothing is square. We quote a $9,000 to $20,000 small kitchen remodel, a $30,000 to $80,000 garage conversion, or a $90,000 to $220,000 prefab ADU with the same line-item transparency.
Older Home Experience
Homes in neighborhoods like Muscoy, Highgrove, and central San Bernardino often hide galvanized plumbing, undersized electrical panels, and settled foundations. We find those during the estimate, not under a tarp at week three.
Design and Finish Selection
You pick the finish level. From builder-grade to Cambria and Kohler, we present brand options at your budget and walk you through durability and lead times at the same desk where we discuss schedule.
Hire a General Contractor
To hire a general contractor is to select the single party responsible for your project’s budget, schedule, subcontractors, materials, and final inspection sign-off. You need to do that when the alternative is managing a roofer, a cabinet shop, a tile sub, and a concrete crew on your own phone. San Bernardino Contractors, run by Ruben Castillo, makes that decision straightforward. Our written estimates cover the full scope, and pricing lands between $4,500 for a walk-in shower and $130,000 for a substantial home addition, always broken down by phase.
What to Ask Before You Sign
Ask for the license number, ask who the foreman will be, and ask how change orders are handled. We answer all three in the first meeting because a contractor who won’t answer them before the contract won’t after it either.
One Point of Contact
From the first demo swing to the last cabinet knob, your questions go to one person. You never have to figure out whether the electrical issue belongs to the tile crew or the window installer.

General Contractor Services
General contractor services span every trade and material a residential project touches, from roofing and siding to cabinetry, countertops, plumbing fixtures, and concrete. You need that range when the job list includes a roof replacement, a kitchen remodel, and a paver patio, and you refuse to run three separate bid processes. San Bernardino Contractors offers that full scope under one roof. Our costs start near $3,000 for a shower replacement and run to $200,000 for a roofing plus kitchen plus addition-scale project, priced from the actual brand selections you make.
Roofing and Exterior Systems
We’re certified with GAF, CertainTeed, Owens Corning, IKO, Atlas, and Tamko. A $400 to $1,800 roof repair today often prevents a $8,000 to $20,000 replacement next year, especially after the Santa Ana winds that work through the Cajon Pass.

ADU and Prefab Construction
Most remodelers don’t touch accessory dwelling units. We partner with Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab, so adding livable square footage in a San Bernardino backyard is a catalog selection, not a two-year custom build.

What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service
Tamko shingles and roofing systems are in our regular rotation, particularly on steep-slope roofs where their Heritage line holds up well through San Bernardino’s summer heat cycles. We’ve installed and repaired Tamko roofing across the Inland Empire and can match existing shingle profiles when a partial replacement is called for.
Boral siding and trim products show up in neighborhoods where homeowners want a wood-look exterior without the maintenance of real timber. PGT impact windows are a frequent request in San Bernardino, where afternoon winds and wildfire season push homeowners toward impact-rated glass. And CGI windows and doors, built for coastal-grade storms, end up on more than a few San Bernardino houses where security and noise reduction matter. Whether you have one of these brands or something else entirely, our team can service it.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Water stains on ceilings or drywall. A stain usually means water has been traveling inside the wall or attic for weeks. By the time the paint bubbles, you’re often past a simple patch job and into replacement territory, and a pro should find the source fast.
- Cracks wider than a quarter inch in walls or around door frames. Hairline cracks are common in older San Bernardino homes. Wide cracks, especially near corners or above windows, can signal foundation settlement or structural movement that needs an expert eye before any remodel begins.
- Windows that won’t open or close without force. Stuck windows can mean framing has shifted or the window itself has failed. If you’re planning a remodel around those windows, the framing question has to be answered before cabinets and trim go up.
- Visible roof granules in gutters. Asphalt shingles shed granules as they age. If your gutters are collecting what looks like coarse sand, the roof is closer to replacement than repair, and a contractor should measure the remaining life before a leak shows up inside.
- You’re running out of space for a growing household. A garage conversion or ADU is a structural project, not a furniture problem. The earlier you bring in a general contractor, the more options you have for layout, permits, and budget before you commit to a direction.
Our Process, Step by Step
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On-Site Walkthrough and Scope Discussion. We meet you at the property in San Bernardino, walk every space you want touched, and listen to how you actually use the house. In the first hour we’re checking attic access, panel capacity, and whether the slab or foundation will cooperate with your plan.
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Written Scope and Line-Item Estimate. Within a week, you get a written quote that breaks the project into phases, with brand-specific allowances for cabinetry, countertops, roofing, and fixtures. No “allowance to be determined later” that morphs into a surprise at billing time.
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Permit Application and Product Selection. We submit plans and permit applications to the City of San Bernardino, then walk you through brand catalogs from KraftMaid to Kohler to James Hardie. You choose the products, we manage the lead times.
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Scheduled Construction with Weekly Updates. Construction starts once permits clear. You get a written schedule, and we hold weekly check-ins so you know exactly where the project stands. Subcontractors are coordinated by our foreman, not by your phone calls.
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Final Inspection and Walkthrough. We call for the city’s final inspection, then walk the finished work with you room by room. Any open items are documented and resolved before the final payment is due, and you leave with a written workmanship warranty.
How Much Does General Contractor Cost in San Bernardino?
A typical kitchen remodel in San Bernardino runs $14,000 to $45,000, while a full bathroom remodel lands at $9,000 to $28,000, depending on whether you’re moving plumbing, selecting Cambria quartz over laminate, or rebuilding a load-bearing wall. A roof replacement on a standard San Bernardino ranch sits at $8,000 to $20,000. An ADU addition starts around $90,000 and can reach $220,000 for a two-bedroom prefab unit with premium finishes. The gap between the low and high end comes down to three things: the brands you choose, the amount of structural work hidden behind the walls, and whether the home was built in 1975 or 2005.
What affects the price most is what we find after demolition begins. San Bernardino homes built before the 1980s often have electrical panels that won’t pass current code, galvanized supply lines that fail when touched, and framing that was never square. A contractor who quotes low and then files change orders week after week is not saving you money. Our written estimates account for the conditions we can see, and we flag known unknowns in writing before you sign. The free estimate includes an on-site walkthrough, a scope review, and a line-item breakdown. Call (855) 473-5620 to schedule yours.
Our Service Area Near San Bernardino
San Bernardino Contractors serves homeowners throughout the San Bernardino Valley, including General Contractor in Fontana, General Contractor in Bloomington, and General Contractor in Rialto, plus neighborhoods like Sunnyslope, Glen Avon, Muscoy, Colton, Highgrove, and Grand Terrace. If you’re planning a remodel or addition anywhere within this area, we’ll bring the same crew and brand relationships to your project. Visit our home page to see the full scope of what we build.
Serving San Bernardino, CA — Our Local Coverage Area
We’re based in the San Bernardino area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
Frequently Asked Questions About General Contractor in San Bernardino
A general contractor is the licensed professional who manages a residential construction or remodeling project from permit to final inspection. They hire and coordinate subcontractors, order materials, and carry responsibility for the finished work. In San Bernardino, a general contractor like Ruben Castillo’s team at San Bernardino Contractors handles everything from kitchen remodels to roof replacements to ADU construction.
A bathroom remodel typically takes two to four weeks, a kitchen remodel runs six to ten weeks, and a home addition or ADU can take four to eight months depending on permit review and site conditions. The schedule depends on the scope, the city’s plan check queue, and product lead times from manufacturers like KraftMaid or PGT. We give you a written schedule before we start, not after you sign.
General contractor pricing in San Bernardino ranges from $3,000 for a shower replacement to $220,000 for a full ADU build. Kitchens run $14,000 to $45,000, bathrooms $9,000 to $28,000, and roof replacements $8,000 to $20,000. The largest variables are finish level, structural conditions, and the brands you choose for cabinetry, countertops, and windows. Call (855) 473-5620 for a free written estimate with real line items.
Yes, we install and service PGT and CGI impact windows across San Bernardino and the surrounding valley. These are common choices for homeowners who want impact-rated glass for wind, noise reduction, and security. We can match existing window styles and quote a full-home replacement or a phased approach depending on budget.
For active leaks, roof damage after a storm, or failed structural components, call us immediately at (855) 473-5620 and we’ll get someone out to assess the problem. Real emergency work is triaged first, and we’ll tell you honestly whether a patch, a temporary tarp, or a full repair is the right call. For planned remodels, estimates are scheduled during normal business hours.
Yes, all completed work from San Bernardino Contractors carries a written workmanship warranty, and manufacturer warranties on products like GAF roofing, James Hardie siding, and Kohler fixtures apply on top of that. The specific warranty terms are spelled out in your contract before any work starts. We don’t hide warranty language in fine print after the job is done.
Make a list of what’s not working in your home, gather photos of styles you like, and know roughly what you’re willing to spend. We’ll handle the rest during the walkthrough: measuring spaces, checking the attic, looking at the electrical panel, and identifying any structural questions. The estimate is free, and you’ll get a written breakdown you can compare honestly against other bids.
Schedule Your General Contractor Service in San Bernardino Today
Ready to see what your San Bernardino home can become? Call (855) 473-5620 to schedule a free, no-obligation walkthrough with our team. You’ll get a written estimate with real brand options and honest numbers, and you’ll deal with one contractor from the first measurement to the final inspection. That’s the way it should work.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving San Bernardino and the surrounding valley.