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Serving Upland, CA and surrounding areas. (909) 755-8782
Custom Upland Sunrooms & Patios designs and builds custom sunrooms, patio enclosures, and four-season rooms for homeowners across Upland and the Inland Empire. We handle permits, HOA submissions, and every step of construction.
Custom Upland Sunrooms & Patios is a licensed sunroom contractor serving Upland, CA and the surrounding Inland Empire. We offer 16 distinct services - from full four-season room additions and custom builds to patio enclosures, screen rooms, solarium installations, and deck conversions. Whether you have an existing patio slab you want to enclose or you are starting from scratch, we handle design, permitting, and construction. We serve 12 communities across the region and respond to every inquiry within 1 business day.
No outdoor space in summer? A new sunroom addition gives you a comfortable, year-round room that connects you to your yard without the heat.
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Use every room of your home in January or July - a fully insulated four-season sunroom stays comfortable no matter what the weather is doing.
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Want outdoor living without a full addition budget? A three-season sunroom gives you a shaded, bug-free room for most of the year at a fraction of the cost.
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Already have a patio slab? We enclose it with walls, windows, and a roof so you gain a real, usable room without tearing up your backyard.
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Every detail built to your home and your life - custom sunrooms designed from the ground up with the layout, glass, and finishes you choose.
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From foundation to final inspection, full sunroom construction handled by a licensed local contractor who knows Upland's permit process.
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Leaking, drafty, or outdated sunroom? We bring it up to current standards so it performs and looks the way it should.
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Bugs taking over your outdoor time? A properly built screen room gives you fresh air and views without the insects or debris.
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That old patio could be so much more - we convert it into a finished, enclosed room you can actually use year-round.
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An unused deck is wasted potential - we convert it into a fully enclosed sunroom that adds living space and home value.
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Comfortable from January through December - all season rooms are insulated, climate-controlled, and connected to your home's HVAC.
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Turn your open-air patio into a protected, finished room without the cost or disruption of a full home addition.
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Floor-to-ceiling glass on all sides and overhead - a solarium fills your home with natural light while keeping the elements out.
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Shade your patio without losing the view - patio cover installation that looks great and holds up through Upland's hottest summers.
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Great sunrooms start with a great plan - we work with you on layout, glass selection, and design before a single permit is pulled.
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Durable, low-maintenance, and easy to customize - vinyl sunrooms deliver long-lasting performance in Upland's dry, sunny climate.
Learn MoreThree straightforward steps, no surprises along the way.
Reach out by phone or through our contact form. We respond within 1 business day to gather basic details - the space you have in mind, how you plan to use it, and a rough budget range. Then we schedule an in-person visit to your home so we can see the site, your existing structure, and anything that will affect the design or cost.
After seeing your property, we put together a written proposal covering scope of work, materials, timeline, and total cost broken down by phase. This is not a ballpark estimate - it is the document you can compare line by line with other bids. We also handle HOA documentation and the city permit application on your behalf before any construction begins.
Once permits are approved, our crew handles foundation work, framing, windows, roofing, and electrical. Each phase is inspected by the city before the next begins. When construction is complete, we walk you through the finished room, show you how everything operates, and hand you the final permit and inspection records to keep with your home documents.
We carry full general liability insurance and hold an active California contractor license. Every project is covered from the first day on site to the final city inspection - you are never exposed.
We come to your home, look at the actual space, and give you a written, itemized proposal - not a phone quote. You owe us nothing until you sign a contract and decide you want to move forward.
We know Upland's building department, its clay soils, its HOA landscape, and its climate. We have been doing this work locally since 2019, so we are not learning on your project.
Every project includes the city building permit and all required inspections as a standard part of the contract - not an add-on. We never suggest skipping the permit, and we never hand you an unpermitted addition.
Ready to talk through your project? Call us at (909) 755-8782 or send us a message and we will respond within 1 business day.
"We had a west-facing patio that was unusable every afternoon from May through October. The team walked us through the glass options, explained exactly what would keep the heat out, and finished the enclosure right on the schedule they quoted. We used it all summer and it stayed comfortable even on the hot days."
Maria T., Upland - Patio enclosures
"I was nervous about dealing with our HOA and the city permit at the same time. They handled all the paperwork, kept us updated every step of the way, and we never had to make a single call to the building department ourselves. The four-season room was done in about seven weeks total from first visit to final walkthrough."
David R., Rancho Cucamonga - Four season sunrooms
"We converted an old deck into a screen room - we mainly wanted somewhere to sit in the evenings without the bugs and the wind. The crew was clean, on time, and the price matched the written proposal exactly. No surprises on the final bill, which honestly was not what I expected from a contractor."
Karen L., Ontario - Screen room installation
We respond within 1 business day - often the same day. There is no obligation to move forward after we talk. After you submit, someone from our office will call you to schedule a free on-site estimate at your home.
(909) 755-8782Custom Upland Sunrooms & Patios is based in Upland, CA and serves 12 communities across the Inland Empire, including Rancho Cucamonga, Ontario, Claremont, and Fontana. We offer same-week scheduling for on-site estimates across our entire service area and handle all permit submissions locally so nothing gets delayed by an unfamiliar building department.
A sunroom built with standard glass can reach 20 to 30 degrees hotter than outdoor air on a 100-degree Upland afternoon. The solution is low-emissivity glass, which blocks heat while still letting in light - ask any contractor you interview what heat-blocking rating their glass carries. The U.S. Department of Energy has a plain-language guide to window energy ratings if you want to understand the specs before you buy.
Yes - every permanent room addition in California requires a building permit, and sunrooms are no exception. Skipping the permit can cost you far more at resale when a buyer's lender flags the unpermitted addition. The City of Upland's Building and Safety Division handles all room addition permits locally, and a contractor familiar with their process moves through it significantly faster than one who is new to the area.
Santa Ana winds in the Inland Empire regularly gust past 50 mph and put real stress on glass panels, roof connections, and exterior seals. A sunroom designed without local wind loads in mind will rattle, leak, or develop seal failures within a few seasons. Ask any contractor you interview whether their framing and glass are rated for high-wind exposure - this is a non-negotiable in Upland's foothill neighborhoods.
Much of the Inland Empire sits on expansive clay soils that swell when wet and shrink when dry. That cycle puts stress on concrete foundations and can cause cracking if the foundation is not designed for local soil conditions. Before any concrete is poured, your contractor should be accounting for soil type - if they do not bring it up, ask directly.
HOA approval and the city building permit are two separate processes, and many Upland homeowners do not realize they need both. HOA review typically happens first - plan for four to eight weeks - and then the city permit application follows. Skipping HOA approval and building anyway can result in a demand to remove or modify completed work at your expense.
Upland's winters are mild - average lows rarely drop below the mid-40s Fahrenheit - which means a three-season room gives most homeowners ten to eleven months of comfortable use per year. A four-season room makes sense if you want to use the space during the coldest January nights or if you want to connect the room to your home's HVAC system for consistent temperature control.
Custom Upland Sunrooms & Patios is a licensed and insured sunroom contractor based in Upland, CA, serving 12 communities across the Inland Empire since 2019. We are licensed through the California Contractors State License Board and carry full general liability insurance on every project we take on.
Our credentials are on file with the California Contractors State License Board - the state authority that licenses all general contractors and specialty contractors doing business in California. You can verify any contractor's license status directly on their website before signing a contract.
Since 2019, we have completed sunroom additions, patio enclosures, and room conversions across Upland, Rancho Cucamonga, Ontario, and surrounding cities - 16 distinct services delivered by a team that knows Upland's building department, soil conditions, and HOA landscape from firsthand experience. Learn more about our team and background.
If you are losing months of outdoor enjoyment because of heat, bugs, or wind - and you are not planning to move in the next few years - a sunroom addition is worth pricing out. The investment pays back in daily quality of life and in home value at resale, particularly in Southern California where outdoor living space matters to buyers.
A permit means a licensed city inspector reviews the plans and inspects the work at multiple stages. If something is not right, it gets corrected before it is buried behind walls or under roofing. Without that inspection, you have no independent verification that the work is safe - and your homeowner's insurance may not cover damage in an unpermitted structure. The California Contractors State License Board has guidance on what to verify before hiring a contractor.
If you have a solid concrete patio slab in good condition, building on it can reduce cost and construction time significantly because the foundation work is already done. A contractor should assess the slab during the site visit and tell you honestly whether it can support a new structure. If there are cracks or settling issues, addressing them up front is far cheaper than fixing them after the room is built.
If you have more questions after reading this, the fastest way to get answers is to talk to someone who knows your specific property - call us at (909) 755-8782 and we will walk you through it on the phone at no charge.
Upland is a city of roughly 80,000 people in San Bernardino County, sitting right at the base of the San Gabriel Mountains in the Inland Empire. Known as the "City of Gracious Living", Upland has a distinct residential character - tree-lined streets, mature landscaping, and a well-kept neighborhood feel that reflects decades of homeowner investment. The city's housing stock ranges from mid-century ranch homes near the historic downtown to newer subdivisions in the northern neighborhoods closer to the foothills. Home values have been above the San Bernardino County average for years, and the owner-occupancy rate reflects a city where people own their properties and invest in keeping them well-maintained.
The most recognizable landmarks in Upland are hard to miss. Mount Baldy - formally known as Mount San Antonio - towers over the northern horizon and is visible from almost every street in the city. Euclid Avenue runs north to south through the heart of Upland - a wide, tree-lined boulevard that is one of the most iconic roads in the Inland Empire and where many of the city's older homes are concentrated. Downtown Upland, anchored by the historic Upland Train Depot on A Street (dating to 1906), is where the city's oldest residential neighborhoods begin. The northern part of the city, near the San Gabriel Mountain foothills, has newer tract homes from the 1980s and 1990s with tile roofs and larger lots.
Our team has been working on homes in Upland since 2019, which means we know the local building department, the clay soils that run under most of the city, the HOA landscape in the planned communities near the 210 freeway, and the wind patterns that make proper roof flashing and glass selection so important here. Whether your home is right off Euclid Avenue or up in the foothills, we are your local sunroom contractor - not a company sending crews from two counties away.
By appointment only, no walk-ins.
Custom Upland Sunrooms & Patios
305 E 9th StUpland, CA 91786(909) 755-8782team@uplandsunroomcontractor.comAlways open, 24/7.Call Custom Upland Sunrooms & Patios today for a free on-site estimate - we serve all of Upland and the surrounding Inland Empire and respond within 1 business day.