General Contractor in Ontario - Licensed & Insured, Written Fixed-Price Quotes

Fast, Reliable General Contractor Across Ontario

Hiring a general contractor in Ontario means finding someone who understands the city’s older housing stock, its brutal summer heat, and a permitting office that moves on its own schedule. Penhallow Remodeling gives every Ontario homeowner a written price before any work starts, and a written 365-day guarantee behind it. Trevor Nash leads our team, and we answer the phone 24/7. Call (936) 259-2607 for a free estimate on your kitchen, bathroom, or whole-home remodel.

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Why Penhallow Remodeling Is Ontario’s Preferred General Contractor Company

Ontario homeowners have been burned before. A contractor shows up for the demo, tears out the kitchen for your Kitchen Remodeling in Ontario, then disappears for three weeks because a bigger job pulled the crew away. We hear this story all the time, and we built our process to make it impossible. Every Penhallow project starts with a written price, a written guarantee, and a real arrival window. No verbal ballpark, no surprises after the drywall comes down.

Our crews are background-checked and uniformed, so you know exactly who is walking through your front door. Materials come from recognized trade brands like Cambria, Kohler, and James Hardie, and we stand behind every installation with the 365-Day Done Right Promise. If something fails inside the guarantee period, we come back and fix it at no charge. We are part of the Kingswell family of companies, operating under The Kingswell Way since 2004, with scheduling coordinated from our Inland Empire office serving Ontario locally.

Construction Company in Ontario

As a General Contractor construction company serving Ontario, we handle kitchen remodels, bathroom remodels, and whole-home renovations from permit to punch list. In this city, that means more than just swinging a hammer. Ontario’s building and safety department runs two to three weeks out on inspections due to the volume of industrial and logistics-related construction submittals, so a construction company here has to sequence work around phased inspection holds, not fight them. A permitted kitchen remodel in Ontario typically runs $14,000 to $45,000 depending on layout, cabinet line, and countertop material. Bathroom remodels land between $9,000 and $28,000. Home additions start around $45,000 and can reach $130,000 for larger square footage.

Permitted Work and Sequencing

We pull permits on every job that requires them, and we schedule rough-in, framing, and final inspections in phases so your project doesn’t stall behind a two-week queue. The written price you get on day one already accounts for this sequencing, because the number on the invoice should match the number you approved.

Foundation and Seismic Retrofits

Older Ontario homes near the historic downtown and Euclid Avenue corridor sit on post-and-pier foundations over expansive adobe clay and were rarely strapped for seismic when they were built. A remodel in those neighborhoods often means opening the subfloor and finding that the real project is underneath. We price that work honestly before the first cabinet is pulled.

Remodeling Contractor in Ontario

As a General Contractor in Ontario and remodeling contractor, we specialize in the kind of work Ontario’s mid-century ranch tracts and pre-WWII bungalows actually need. Homeowners call us when a galvanized supply line starts leaking behind a 1950s bathroom wall, or when a kitchen from the Nixon administration finally gives up. A small kitchen remodel in Ontario typically runs $9,000 to $20,000. A small bathroom remodel runs $5,000 to $12,000. A tub-to-shower conversion lands between $3,500 and $10,000. Every one of those numbers gets put in writing before work starts.

Bungalow and Ranch-Style Retrofits

Ontario’s central and eastern neighborhoods are dominated by mid-century ranch-style homes that were built before Title 24 energy codes existed. A remodel here regularly requires re-roofing, re-plumbing of galvanized lines, and seismic strapping upgrades. We specify higher R-value insulation and larger HVAC capacity because Ontario’s 105°F summers demand it, and a remodel that skips this step will fail its inspection and cost you more in change orders later.

Whole-Home Remodels

A whole-home remodel in Ontario is rarely just cosmetic. It is kitchens, baths, roofing, and foundation work bundled together under one permit set with one written price and one warranty. We coordinate all of it, including the phased inspection holds that keep the project moving even when Ontario’s building department is buried in industrial submittals.

Trusted Brands We Service in Ontario

We install Cambria, Silestone, and Caesarstone countertops, Kohler and Moen fixtures, and KraftMaid and Wellborn cabinetry across Ontario. For deck and exterior work, we source materials like Sakrete and Belgard, and we offer Tremron service in Ontario, because they hold up to the Inland Empire’s heat cycles and Santa Ana winds better than cheaper alternatives. The brands behind your remodel matter, because the 365-Day Done Right Promise only works if the products underneath it don’t fail first. We keep a local stock of common replacement parts in our Inland Empire inventory, which means fewer delays when a fixture arrives damaged or a cabinet door needs reordering.

Common General Contractor Problems We See in Ontario Homes

• Skipped foundation retrofits on pre-WWII bungalows. Ontario’s historic Euclid Avenue and downtown neighborhoods sit on expansive adobe clay that shifts seasonally. A remodel that doesn’t address the post-and-pier foundation first cracks the new subfloor, the new tile, and the new drywall within a few years. We sequence foundation work before finishes, always.
• Undersized Title 24 insulation and HVAC. Ontario summers regularly exceed 105°F, and the California energy code requires higher R-values and larger HVAC capacity here than in coastal LA County. Contractors who under-spec this work pass the inspection on paper and then back-charge the homeowner with a change order. We size it correctly in the original written price.
• Crews disappearing to logistics corridor jobs. Ontario sits at the I-10/I-15 interchange, and the tilt-up warehouse and distribution center work near that node pulls skilled labor away from residential remodels. It is real, and it embarrasses smaller contractors. We schedule our crews with phased inspection holds and a defined arrival window, so your project does not idle while a bigger job drains the labor pool.
• Galvanized supply line failures. Ontario’s 1950s through 1970s ranch tracts were plumbed with galvanized steel that corrodes from the inside. A remodel that doesn’t re-plumb those lines often fails within a year. We include full repiping in our older-home estimates rather than letting it surface as a surprise.

Pricing for General Contractor in Ontario, CA

We Also Serve Cities Near Ontario

Penhallow Remodeling serves homeowners across Ontario and the surrounding cities of Montclair, Claremont, Upland, and Rancho Cucamonga. If you are a mile past the Ontario border in any direction, the same written price, the same 365-day guarantee, and the same local crew apply. Call us and ask.

FAQs About General Contractor in Ontario