
Supreme Ontario Deck & Fence designs and builds custom decks, fences, and outdoor structures that hold up to Inland Empire summers and add real value to your home.

Supreme Ontario Deck & Fence is a deck builder serving Ontario, CA with 16 services covering custom decks, fencing, pergolas, screened porches, and outdoor kitchens. We work across 12 cities in the Inland Empire and have been building permitted, inspected outdoor structures since 2016. Whether you want a simple pressure-treated deck or a multi-level composite build with built-in seating, we handle the design, the permit, and the construction from start to finish.

No outdoor space? We design and build a deck around your yard, lifestyle, and budget - from the ground up.
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Tired of sanding and staining every spring? Composite boards hold their color for decades with almost no upkeep.
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Trex boards resist fading, splintering, and heat - a strong fit for Ontario summers above 100 degrees.
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Want a solid wood deck without the high price? Pressure-treated lumber gives you durability at the lowest cost per square foot.
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Cedar is naturally rot-resistant, smells great, and stays cooler underfoot than composite on hot afternoons.
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Soft boards, wobbly railings, or a deck that failed inspection? We assess the damage and fix it right.
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Ontario sun bleaches wood fast. A fresh stain and seal every two years keeps your deck looking sharp and lasting longer.
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Adding a pool? A properly built deck surround creates a safe, polished space your family will actually use every day.
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Vinyl fencing looks clean, needs zero painting, and holds up to Inland Empire heat and wind without warping.
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Want real wood privacy? We build solid fences that block the view, reduce noise, and add a natural feel to your yard.
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Enjoy your patio without the bugs or direct sun. Screened enclosures extend the comfortable hours you spend outside.
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A solid patio cover turns your deck into a usable outdoor room - even when the sun is at its worst.
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A pergola adds structure, shade, and style to any backyard and works great for climbing plants or string lights.
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Move the cooking outside. We build deck platforms designed to support grills, counters, and the weight of an outdoor kitchen.
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Sloped yard? Multi-level decks turn an awkward grade into a feature - with separate zones for dining, lounging, and play.
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Loose or outdated railings are a safety issue. We install railings that meet code, hold firm, and look finished.
Learn MoreCall or fill out our contact form and describe what you are thinking. We respond within 1 business day. A good deck estimate requires seeing your yard in person, so we schedule a free on-site visit right away. No quotes over the phone - your yard's slope, size, and soil all affect the price.
During the site visit, we measure your yard, check the ground conditions, and walk through material options with you. You get a written, itemized estimate that spells out the size, materials, and total cost. Once you approve the design, we handle the permit application with the City of Ontario on your behalf - you do not need to make a single call to the city.
Once the permit is approved, the crew gets to work. A city inspector visits to verify the frame before boards go on - that is a required step that protects you, not just paperwork. We finish the surface, railings, and any extras, then walk you through the completed deck. You get all warranty documentation and a clean site when we leave.
We hold an active California contractor license through the CSLB and carry liability insurance and workers compensation on every project. You can verify our license number on the CSLB website before you sign anything.
We visit your yard in person, measure the space, and give you a written itemized quote at no charge. We respond to every inquiry within 1 business day - no waiting a week for someone to call you back.
We have been building decks in the Inland Empire since 2016. We know Ontario's permit process, its soil conditions, and its climate - and we build accordingly. Local knowledge saves you time and headaches.
We pull permits for every job and see the inspection process through to completion. A permitted deck is documented, legal, and never becomes a problem when you sell your home or make an insurance claim.
Ready to get started? Call (909) 738-1084 or send us a message.
"They gave us a written estimate within a day of visiting, pulled the permit themselves, and finished our composite deck in four days. The boards are still holding their color two summers later - exactly what they said would happen."
Marcus T., Rancho Cucamonga
Composite deck installation
"We had an old wood deck that had gone soft in two spots. They came out, told us repair was not worth it, and replaced the whole thing with a pressure-treated build that passed inspection the first time. No callbacks, no surprises on the bill."
Diana R., Upland
Deck repair and replacement
"Our HOA required design approval before permits. They handled the submission, got approval, and had the pergola up within two weeks of the HOA sign-off. It looks exactly like what we discussed on the first visit."
Kevin S., Chino Hills
Pergola installation
We respond within 1 business day - no waiting a week for someone to call. There is no obligation and no pressure. After you submit this form, someone from our office will call you to schedule a free on-site estimate where we measure your yard and walk through your options in person.
(909) 738-1084Supreme Ontario Deck & Fence is based in Ontario, CA and serves 12 cities across the Inland Empire, including Rancho Cucamonga, Fontana, and Upland. We typically schedule free on-site estimates within the same week. Our service area covers the full western San Bernardino County region - if you are in one of the cities below, we serve you.
Six things that come up on almost every estimate call - from permit questions to material choices for Inland Empire summers.
Yes - Ontario requires a building permit for any new attached deck and for most freestanding decks above ground level. A city inspector checks the frame before boards go on. Skipping the permit creates problems at resale. The North American Deck and Railing Association provides a useful overview of why permits protect homeowners.
Composite boards do not dry out, warp, or splinter the way wood does under intense UV and heat. Natural cedar holds up better than pressure-treated pine in hot climates and stays cooler underfoot. Ask your contractor how each material performs after a few years in the Inland Empire specifically - not just in the catalog photos.
The frame - the posts, beams, and joists under the surface boards - is what determines whether your deck is safe and solid for decades. Poor framing is the most common cause of deck failures, and it is invisible once the boards go down. A reputable contractor will show you the frame before it is covered.
Much of Ontario sits on clay-heavy soil that swells when wet and shrinks when dry. That movement can push deck posts out of alignment if footings are not dug deep enough. A city inspector checks footings before the concrete is poured - another reason permits work in your favor here.
Many of Ontario's newer neighborhoods - particularly around the Ontario Ranch and south Ontario areas - are governed by HOAs with design review requirements for decks. HOA approval and city permit approval are two separate processes. You need both. Start the HOA review before pulling the city permit.
Boards that feel soft or spongy underfoot usually signal rot in the frame beneath - a structural issue that repair alone cannot fix. Cosmetic problems like surface cracking or fading are repairable. If posts wobble, the ledger board is pulling away from the house, or multiple boards are soft, replacement is usually the safer and more cost-effective path.
Supreme Ontario Deck & Fence is a licensed and insured deck builder company based in Ontario, CA, serving 12 cities across the Inland Empire since 2016.
We hold a valid contractor license through the California Contractors State License Board and carry general liability insurance and workers compensation coverage on every project - both required under California state licensing law.
Since 2016, we have completed custom decks, fences, pergolas, pool surrounds, and outdoor kitchens across 16 service types for homeowners throughout San Bernardino County. Every project is permitted, inspected, and built to current Ontario building requirements.
Learn more about our team and approach or contact us to schedule a free estimate.
If you want to stop spending weekends sanding and restaining, composite is the better long-term investment for most Ontario homeowners. The higher upfront cost pays off over 10 to 15 years of near-zero maintenance.
In Ontario's climate, plan on resealing every two years - not the three to four years some guides suggest. The Inland Empire's UV load breaks down surface finishes faster than the national average.
Yes. Most deck failures start in the hidden frame, not the surface boards. Quality pressure-treated lumber for framing, even under composite decking, is essential for a structure that lasts decades.
The American Wood Council publishes free residential deck construction guides that cover framing standards, footing requirements, and material specifications - worth a read before your first estimate call. Ready to talk through your options? Call (909) 738-1084.
Ontario is a city of about 185,000 people in San Bernardino County, roughly 35 miles east of downtown Los Angeles in the heart of the Inland Empire. The city has a wide mix of housing - from older Craftsman homes near Euclid Avenue, Ontario's historic tree-lined boulevard listed on the National Register of Historic Places, to mid-century ranch homes from the 1960s and 1970s, to newer two-story stucco subdivisions built in the 1990s and 2000s on the south and east sides of the city.
Ontario's climate is what makes outdoor living here genuinely worthwhile - and genuinely demanding on materials. Summer temperatures regularly exceed 100 degrees Fahrenheit, and the Inland Empire's dry heat and intense UV exposure breaks down untreated or poorly sealed wood faster than most homeowners expect. The National Weather Service regularly issues heat advisories for this region, and the Santa Ana winds that hit every fall can stress or damage outdoor structures. Ontario also sits on clay-heavy soils that shift seasonally - a factor that affects how deck footings need to be designed and sized to stay stable over time.
We have been building decks for Ontario homeowners since 2016, working across every neighborhood from the older streets near downtown to the newer subdivisions near Ontario Mills and Ontario International Airport. We know the city's permit process, its HOA landscape, and its soil conditions - and we build accordingly on every job.
By appointment only, no walk-ins.
Supreme Ontario Deck & Fence
417 E F St
Ontario, CA 91764
estimates@ontariodeckandfence.com
Always open, 24/7.
Call Supreme Ontario Deck & Fence today for a free on-site estimate - we serve Ontario and 12 surrounding cities across the Inland Empire.