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 Ontario Homeowners
Finding a general contractor in Ontario who can actually manage the entire scope of a renovation instead of just one trade is harder than most homeowners expect. Workshop Contractors exists because most remodels fail at the intersections – where the new roof meets the siding, where the kitchen plumbing ties into an aging main line, where a paver driveway needs grading that respects the home’s drainage. Ontario’s older housing stock, particularly the post-war neighborhoods around Euclid Avenue and the vineyard-era homes near Guasti, demands a contractor who understands how these systems interact. Led by Noel Figueroa, our team handles exterior and interior work under one contract, one schedule, and one accountable point of contact. Call (844) 384-3361 to discuss your project and schedule a free estimate.
Construction Company
A construction company in Ontario is only as reliable as its ability to coordinate multiple trades against a single timeline. You need this level of management when your project touches more than one system – a kitchen remodel that involves electrical, plumbing, cabinetry, and countertops, or an exterior renovation that pairs new windows with James Hardie siding and a roof replacement. Workshop Contractors operates as a full-scope construction company, which means we source the materials and manage the labor ourselves. Kitchen remodels in Ontario typically run $14,000 to $45,000 depending on cabinet grade and surface selection. Bathroom remodels land between $9,000 and $28,000. Roof replacements start around $8,000 and can reach $20,000 for larger homes or premium shingle systems.
Material Sourcing Under One Roof
We carry direct working relationships with manufacturers like Cambria, Kohler, and Moen, so the countertop you select during planning is the countertop our crew installs. No middleman ordering, no substitution surprises. When a homeowner wants Caesarstone in the kitchen and Blanco sinks in both bathrooms, those decisions stay in-house from quote to install.
Permit-Ready Project Management
Ontario’s building department has specific requirements for structural changes, ADUs, and exterior envelope work. We pull permits, schedule inspections, and manage corrections directly. Most homeowners don’t realize how many hours of paperwork sit behind a completed renovation until they try to manage it themselves.
Styles & brands we work with
Remodeling Contractor
A remodeling contractor in Ontario should be able to walk your property and tell you which upgrades will hold value in this specific market, not just which ones photograph well. Workshop Contractors handles both interior and exterior remodeling, which matters more than people think – a kitchen addition often requires roof restructuring, and new patio pavers need proper grading against the home’s foundation. Small kitchen remodels in Ontario start around $9,000 and run to $20,000. Small bathroom remodels range from $5,000 to $12,000. Paver patios typically cost $3,500 to $11,000 depending on square footage and base preparation.
Interior Remodel Scope
We rebuild kitchens, bathrooms, and whole-home interiors with the same attention to structural reality that we bring to exterior work. Cabinet installation runs $4,000 to $13,000 in Ontario, and countertop installation typically lands between $2,000 and $6,500 depending on the slab. Backsplash work falls in the $800 to $2,500 range for most Ontario kitchens.
Exterior Remodel Integration
When we remodel the outside of an Ontario home, we’re thinking about how water moves away from the structure. Vinyl fence installation costs $3,500 to $9,000 in this market, and paver driveway installation runs $7,000 to $18,000. Every exterior project includes a drainage assessment because Ontario’s clay-heavy soil shifts with seasonal moisture.
Licensed General Contractor
A licensed general contractor in Ontario carries the legal authority to pull permits, bind the work to code, and stand behind the finished product, as explained in The Complete General Contractor Guide for Ontario Homeowners. Workshop Contractors operates as a state-licensed general contractor, led by Noel Figueroa, and that license is the difference between a remodel that passes inspection and one that creates liability for you down the road. The cost structure of working with a licensed contractor shows up in the project totals – home additions in Ontario run $45,000 to $130,000, and garage conversions range from $30,000 to $80,000. Those numbers reflect real permit costs, code-required materials, and licensed trade labor, not a handyman’s cash estimate.
Why the License Matters
When a project involves structural changes, electrical work, or plumbing moves, Ontario requires permits and inspections. An unlicensed operator cannot legally pull those permits, which puts the homeowner’s insurance at risk if something goes wrong. We carry the license because it’s the baseline of competence, not a marketing point.
Accountability That Survives the Job
A licensed general contractor has a legal identity tied to the work. If something fails after completion, you have recourse. That’s why we document every phase, from initial site assessment through final inspection, and why our name goes on the permit application line rather than a subcontractor’s.
Residential General Contractor
A residential general contractor in Ontario handles the full life cycle of a home improvement project, from initial scope definition through final walkthrough. You need this when the project involves multiple trades that have to sequence correctly – roof before insulation, windows before interior trim, pavers after drainage. Workshop Contractors manages residential work across Ontario, including the established neighborhoods around Chaffey High School and newer developments south of the 60, and you can learn more about our General Contractor in Chino. Impact window installation in this market runs $8,000 to $25,000 depending on window count and frame condition. Window replacement ranges from $4,500 to $15,000 for a typical Ontario home. Driveway replacement costs $5,000 to $14,000 depending on material choice and existing base condition.
Whole-Property Renovation
From the roof down to the pavers, we handle it. That’s the actual value proposition – not a list of services, but the fact that one team owns the entire envelope and interior of your home. When a homeowner in Ontario wants a new roof, new siding, new windows, and a rebuilt patio, they’re not managing four contractors. They’re talking to one.
ADU and Prefab Construction
Our partnerships with manufacturers including Abodu, Dvele, Mighty Buildings, Boxabl, and Plant Prefab mean we can build accessory dwelling units on Ontario residential lots. ADU construction ranges from $90,000 to $220,000 in this market depending on size, foundation requirements, and utility connections. This is a rare general contractor competency, and it matters for homeowners who want rental income or multi-generational living space.
Hire a General Contractor
When you hire a general contractor in Ontario, you’re hiring someone to absorb the scheduling conflicts, material delays, and trade coordination problems that would otherwise land on your plate. The right time to hire is before you start buying materials or signing with individual trades – once you’ve committed to a cabinet supplier and a separate countertop fabricator, you’ve already taken on general contractor duties without the license. Roof repairs in Ontario run $400 to $1,800 for typical issues like flashing failures or missing shingles. Metal roof installation runs $15,000 to $40,000 for full replacements. Tile roof repair lands between $600 and $2,500 depending on the extent of damage.
One Contract, One Schedule
We write one contract that covers the entire scope of work. That means no finger-pointing between the window installer and the siding crew, no arguments about whose job it was to flash the penetration correctly. When something goes wrong on a Workshop Contractors job, we own it because we were always the ones responsible for it.
Material Decisions Stay In-House
We source and we install. Those two verbs should never be separated. When you’re choosing between GAF and Owens Corning roofing or between Cambria and Caesarstone surfaces, you’re making that decision with the same team that will execute it. That’s not a convenience – it’s the structural advantage of a single-source contractor.
General Contractor Services
General contractor services in Ontario span the full range of residential renovation and construction work, and the scope you need depends on where your home is in its life cycle. Workshop Contractors covers exterior envelope projects – roofing, windows, siding, fencing, hardscaping – and full interior remodels including kitchens, bathrooms, and whole-home renovations. Asphalt driveway paving in Ontario costs $3,500 to $9,000, and concrete driveway installation runs $4,500 to $12,000. Driveway sealing is a smaller job at $250 to $700, but it’s one of those maintenance items that prevents much larger replacement costs later, which is why we recommend following a General Contractor Maintenance Checklist for Ontario Homeowners. Vinyl fence installation ranges from $3,500 to $9,000, while aluminum fence installation runs $4,000 to $10,000 for standard residential lots.
Exterior Envelope Work
Roofing, windows, doors, siding, fencing, and pavers all fall under our general contractor services umbrella. We carry roof replacements with GAF, CertainTeed, and Owens Corning products, window and door packages through PGT and CGI, and hardscaping systems from Belgard, Unilock, and Techo-Bloc. The material decision is yours; the installation accountability is ours.
Interior Remodeling and Kitchens
KraftMaid and Wellborn cabinetry, Cambria and Caesarstone surfaces, Kohler and Moen fixtures – these are the brands we install in Ontario kitchens and baths. Cabinet installation costs $4,000 to $13,000, and a full kitchen remodel lands between $14,000 and $45,000 depending on whether we’re moving plumbing and electrical or refreshing in place. Walk-in shower installation runs $4,500 to $12,000, and tub-to-shower conversions range from $3,500 to $10,000.
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
Workshop Contractors carries established working relationships with more than 50 manufacturers across roofing, windows, doors, cabinetry, surfaces, fixtures, fencing, hardscaping, and prefab construction categories. That depth matters because material selection in a renovation should be a conversation about trade-offs, not a sales pitch for whatever brand happens to be on the truck.
We work extensively with Caesarstone and Cambria for countertop surfaces, Kohler and Moen for plumbing fixtures, and Blanco for sinks. We’ve installed hundreds of Kohler fixtures in Ontario bathrooms, and we know the valve spacing and rough-in requirements for Moen shower systems without pulling up the spec sheet. James Hardie siding, GAF and CertainTeed roofing, PGT impact windows – these are brands we source regularly and install correctly. Whether you have a specific brand in mind or want us to guide the selection based on your budget and the house itself, we can help.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Ceiling stains or musty smells after rain. This usually means roof penetration failure, and in Ontario’s winter rain patterns, small leaks turn into structural problems fast. A general contractor can assess whether the issue is isolated flashing or a systemic roof failure before you spend money on interior repairs that will just get wet again.
- Windows that sweat between the panes or let drafts through closed frames. Failed seals and warped frames are signs that the window system is done. Impact window installation runs $8,000 to $25,000 in Ontario, and replacing them before winter cuts your heating costs and prevents water intrusion around the frames.
- Cracks in exterior stucco wider than a credit card. Ontario’s clay soil expands and contracts with moisture, and that movement shows up in the envelope first. A horizontal crack along a wall or a stair-step crack near a corner is worth a structural assessment from a licensed general contractor, not a tube of caulk.
- Driveway pavers sinking or separating. This points to base failure underneath the pavers, not a cosmetic problem. Replacing the driveway costs $5,000 to $14,000, but ignoring the base issue means the new surface fails the same way the old one did. Asphalt and concrete driveways in Ontario show similar base problems as surface cracks widen into fissures.
- A kitchen or bathroom that hasn’t been touched in 20+ years. Beyond aesthetics, old plumbing fixtures and electrical systems in neglected rooms are aging toward expensive failures. Kitchen remodeling costs $14,000 to $45,000 and bathroom remodeling runs $9,000 to $28,000. Replacing aging systems on your schedule beats an emergency repair on a Sunday night.
Our Process, Step by Step
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Initial consultation and site walk. We walk the property with you, inside and out, and we listen. We’re checking for structural realities that will affect the project: load-bearing walls, drainage patterns, existing roof condition, and electrical panel capacity. This consultation is free, and it’s where we start building the actual scope, not a generic estimate.
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Detailed scope and material selection. We bring the brand catalogs and the price ranges to the table. You choose between Cambria and Caesarstone, GAF and Owens Corning, Kohler and Moen – and we translate those choices into a line-item quote. No vague allowances that balloon later; we want you to know what you’re getting before we sign.
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Permits and scheduling. We pull permits from the City of Ontario, schedule inspections, and sequence the trades so down time is minimized. Because we manage the entire job, the roofer arrives before the drywall crew, and the electrician roughs in after the plumber has set his lines. Nobody waits on a different contractor’s mistake.
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Construction and weekly updates. You get a point of contact who can tell you what happened this week and what happens next. Noel Figueroa stays involved in every project, not just the ones with problems. If an inspector flags something, we address it immediately and keep the schedule honest.
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Final walkthrough and closeout. We walk the finished work with you, review the inspection sign-offs, and hand over the manufacturer documentation for every material we installed. Then we stay reachable. The relationship shouldn’t end when the invoice is paid.
How Much Does General Contractor Cost in Ontario?
General contractor costs in Ontario vary widely because the work itself varies widely. A small bathroom remodel runs $5,000 to $12,000 when we’re refreshing finishes in place. A full kitchen remodel runs $14,000 to $45,000 depending on whether we move plumbing, change the layout, or upgrade to premium surfaces like Cambria or Caesarstone. Roof replacements land between $8,000 and $20,000 for most Ontario homes, and home additions are a different scale entirely at $45,000 to $130,000. ADU construction starts around $90,000 and can reach $220,000 for larger units with premium finishes.
What drives the price in Ontario specifically? Permit costs for structural work, the condition of the existing systems you’re tying into, and material tier. A paver driveway costs more if the base needs full excavation because of Ontario’s clay soil. A shower replacement costs less if the drain location works with the new pan. To avoid overpaying, get line-item quotes that break out labor from materials. To avoid underpaying for trouble, ask if the quote includes permit pulls and inspections. Our free estimates include a full scope breakdown so you can compare what you’re actually getting – call (844) 384-3361 to schedule one.
Our Service Area Near Ontario
Workshop Contractors serves Ontario and the surrounding Inland Empire cities including Upland, Montclair, Chino, Rancho Cucamonga, Claremont, Pomona, and La Verne. We also work in the unincorporated communities near San Antonio Heights and Los Serranos, plus Eastvale and Jurupa Valley to the south. Our team knows the difference between Ontario’s pre-war bungalows and the 1990s tract homes in south Ontario, and we scope work accordingly. If you’re in a neighboring city, read more about our General Contractor services in Upland or explore our full Ontario coverage. For most projects, we can be on-site for an estimate within a few business days.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 Ontario
A general contractor is the licensed professional who manages an entire construction or renovation project from permits through completion. Workshop Contractors handles exterior envelope work and interior remodeling under one contract, which means we schedule the trades, source the materials, and stand behind the finished product. It’s the difference between managing a project and being managed by a project.
Project timelines depend entirely on scope – a bathroom remodel typically runs two to four weeks, while a full home addition can take four to eight months. Permit processing with the City of Ontario adds time to any structural project, and we factor that into our schedules honestly. We’ll give you a written schedule during the estimate process and update it weekly as the job progresses.
Costs range from a few hundred dollars for small repairs like driveway sealing at $250 to $700, up to $130,000 or more for major additions. A typical kitchen remodel in Ontario runs $14,000 to $45,000, and a bathroom remodel lands between $9,000 and $28,000. We provide line-item quotes so you can see exactly where the money goes before you sign anything. Call (844) 384-3361 for a free estimate on your specific project.
Yes, we install Kohler and Moen fixtures regularly in Ontario bathrooms and kitchens, along with Caesarstone and Blanco surfaces and sinks. We carry direct working relationships with these manufacturers, which means we understand their installation requirements and can troubleshoot effectively. If you have a different brand in mind, we’ll work with that too – the material decision is yours.
We’re not a 24/7 emergency dispatch service, but we do prioritize active roof leaks and other urgent structural issues when someone calls. If water is coming into your home right now, call us at (844) 384-3361 and we’ll assess the situation and advise on temporary protection and the next steps. Roof repairs in Ontario run $400 to $1,800 for typical issues.
We stand behind our installations, and the specific manufacturer warranties on materials like GAF roofing, James Hardie siding, and Kohler fixtures transfer to you as the homeowner. The combination means the products carry their own coverage and our labor is backed by a contractor who answers the phone. We’ll walk through all warranty documentation during your final walkthrough.
Walk your property and make a list of what’s working and what’s failing, then think about what you actually want the result to look like. Have a rough budget number in mind, because that helps us recommend realistic material tiers. It helps to know where your water shutoff and electrical panel are located, though we’ll find them if you don’t. The estimate visit is free, and it’s your chance to see whether we’re the right fit.
Schedule Your General Contractor Service in Ontario Today
If you’re planning a renovation in Ontario, start with a conversation. We’ll walk your property, answer your questions honestly, and give you a free, no-obligation estimate with line-item detail. Call (844) 384-3361 today to schedule your site visit with Workshop Contractors. One contractor. Every trade. From the roof down to the pavers, we handle it.
Written by Noel Figueroa, Owner at Workshop Contractors, serving Ontario since 2015.