Deck-to-sunroom conversion in Fontana CA - a room your deck can actually carry
Your deck gets more sun than use. We check what's underneath, then build an enclosed room that holds up and gets used.
Request an estimate
Can my Fontana deck be turned into a sunroom?
A deck-to-sunroom conversion in Fontana turns the deck you already have into an enclosed room with walls, windows and a roof, so the space you mostly walk past becomes a room you actually sit in.
Most people who call us have a deck that gets plenty of sun and not much use, and the first question is whether it can carry a room at all. The price mostly turns on what's under the boards, how big the room is and whether you want it for three seasons or all twelve months, while the schedule turns on any deck work that has to happen first and the city's review of the drawings. If your outdoor space is a concrete slab rather than a deck, a patio-to-sunroom conversion is the closer fit. Either way, your written quote shows what's in the price and what isn't.
How we do a deck-to-sunroom conversion
A lot of decks were built for patio chairs, not walls and a roof, so I start underneath, with the posts and the joists the boards sit on, and tell you straight whether it makes more sense to reinforce your deck or rebuild it. Once that's settled, the old decking often comes up, because boards with gaps between them make a poor floor for a closed room, and our crew adds the framing the room needs, a subfloor, insulation where the room calls for it and the finished floor. Then the walls, windows and roof go on, tied into the house, and we clean up as we go.
How you plan to use the room decides how much goes into it. If you want it comfortable in January as well as May, we plan it as one of our all season rooms, with the insulation and heating and cooling that takes. If the deck turns out to be past saving and you'd rather close in a covered spot at ground level, our enclosed patio rooms give you the same kind of space without a deck underneath it.
What Fontana asks for on a deck-to-sunroom conversion
In Fontana, the city issues the building permit, and the contractor signs the application and shows a current California contractor's license, with every contractor and subcontractor on the job showing proof of state and city licenses. We pull the permit in our name and handle the drawings, the inspections and the back and forth, so you don't have to stand in line for us. The city also has rules for additions that can reach a deck room. If your house has fire sprinklers, an addition has to have them too, and if it doesn't, an addition over 50 percent of the existing floor area means sprinklers for the addition and the whole house. A heated and cooled room is new conditioned space, and the city's plan checklist calls for energy calculations on it. How the city reads your particular room is something we work out with them as part of the permit, and I'll tell you what it means for your job before you sign anything.
We deal with whichever city or county office covers your address, since a deck a few miles away can fall under a different office. Around Fontana we mostly see decks off the back of the house that were built to hold a grill and a few chairs, and it's the same story on jobs in Rialto and Rancho Cucamonga, so the first look goes underneath.
- Call (909) 346-1870
- Mon–Fri: 6 AM–9 PM, Sat–Sun: 7 AM–9 PM
- Fontana, CA 92335
What happens after you call about your deck
Call or send the form
Reach us at (909) 346-1870 or through the form and we'll set a time for me to come out. I look at the deck, the house it's attached to and how you want to use the room.
Get a written quote
You get a written quote that says what's in the price and what isn't, including whether the deck gets reinforced or rebuilt. That's where the cost questions get answered, before anyone picks up a tool.
We handle drawings and permit
We draw the room, pull the permit and set a schedule that already counts the city's review. Paperwork moves at its own pace, so we plan around it instead of pretending it doesn't.
Our crew builds the room
Our crew works within the city's construction hours, 7 a.m. to 6 p.m. on weekdays and 8 a.m. to 5 p.m. on Saturday. When it's done, I walk the finished room with you.
Why Fontana homeowners call Sunscape for deck conversions
I look under every deck myself
I do the walkthroughs and estimates myself, so the person pricing your room is the one who got under your deck. You won't get a number from someone who only saw a photo.
Planning rooms here since 2013
I started this business in 2013 after years running the schedule for a busy construction company. That's why the city's review sits on our calendar from the start instead of showing up as a surprise halfway through.
Licensed and fully insured
We're licensed and fully insured. Our own crew does the building, and we bring in licensed trades for electrical or heating and cooling work when the room calls for it.
Fontana's rules settled at the estimate
If the city's sprinkler or energy rules could touch your room, I bring it up at your kitchen table. It goes on the quote then, not into a hard conversation in the middle of the job.
Send a few photos of your deck through our contact page or call (909) 346-1870, and I'll come take a look underneath.
Request an estimateGet a free on-site look at your deck and a written quote
We reply within one business day, and the visit is free with no obligation. I come out to check the deck's structure, see how it meets the house and talk through how you'll use the room, then you get a written quote that spells out what's in it and what isn't.
- Licensed and fully insured.
- Phone
- (909) 346-1870
- Location
- Fontana, CA 92335
- Hours
- Mon–Fri: 6 AM–9 PM, Sat–Sun: 7 AM–9 PM
Questions about deck-to-sunroom conversions in Fontana
How do I know if my deck can hold a sunroom?
Many decks weren't built to carry the weight of an enclosed room, so a lot of them need upgrading first, and some are better rebuilt than patched. Rot, loose posts, a deck that has settled, water that doesn't drain off and a history of repeated repairs all make a deck a weaker candidate, so it helps to note any of those before the estimate.
What is the best way to choose between a three-season and four-season sunroom on a deck?
Pick by when you'll use the room. A three-season room on a deck handles spring, summer and fall but stays cold in winter, while a four-season room adds insulation, heating and cooling so it works all year, and that's more work to plan and pay for.
How much does a deck-to-sunroom conversion cost near Fontana?
A three-season sunroom built on an existing structural base in nearby Rancho Cucamonga usually costs about $110 to $150 per square foot. That figure leaves out insulation, extending heating or cooling, plumbing and permits, so those get budgeted on top. A sound deck can bring the cost down, but if it needs a lot of upgrading the savings shrink or disappear, which is why your quote starts with what's underneath.
What happens before Fontana reviews plans for a sunroom on my deck?
The city requires a pre-alteration inspection before any plans are submitted for plan check, the city's review of the drawings. If the room won't use ordinary light wood framing, Fontana also wants the structural design done by a California registered engineer or licensed architect, and we line that up as part of the drawings.
Can I convert my deck into a sunroom myself in Fontana?
Yes. If you don't hire a contractor, Fontana has you sign the permit application as the owner-builder and complete a certification. Hire us and that signature is ours instead.
How much of a deposit can a contractor ask for in California?
For home improvement work in California, the down payment can be no more than $1,000 or 10 percent of the contract price, whichever is less. There's no exception for special-order materials, so check any contract against that, and the state's contractors board explains the rule.
Other rooms worth a look
All season rooms
If you want the room just as comfortable on a cold night as a hot afternoon, this is the build with the insulation and heating and cooling to do it.
Enclosed patio rooms
When the deck isn't worth saving, an enclosed room at ground level gets you the same use with no deck to shore up.
Send photos of the deck you want enclosed
A few photos, the deck's rough size and whether you want the room year-round let me show up already knowing the right questions to ask.
Request an estimateCall (909) 346-1870