Three season sunrooms in Fontana CA - a patio room with walls, glass and no surprises
Your patio sits empty because of wind, sun and bugs. We close it in with walls, windows or screens and a roof you can sit under.
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Is a three-season sunroom the right room for your patio?
Sunscape Fontana Sunrooms & Patios builds three-season sunrooms in Fontana, CA and the cities around it. These are enclosed rooms on your house with windows or screens and no heating or cooling run to them, so a patio or deck you hardly use becomes a room you can actually sit in.
Most people who call about one have a patio they've given up on and want walls and a roof without running heating or cooling out there, and if you do want it heated and cooled, that's a four-season sunroom. The price moves with the room's size, glass or screens, whether you insulate, whether you want power and whether your base needs reinforcing, while the schedule mostly turns on the base and the city's permit review. I'll see all of that on the visit, and the written quote spells out what's in the price and what isn't.
How we build a three-season sunroom
This is the simpler room, so most of the planning goes into the base, the glass and two questions I ask early. First I check that your slab or base can carry the room, then we settle whether you want insulated windows and wall, floor and roof insulation, because those go in much more easily while we're building and adding them later often costs more. I also ask whether you want power out there, since a couple of outlets are easier to plan than to add. Then our crew sets the frame against your house, fits the windows or screens, puts the roof on, hangs the door and cleans up behind us.
Some homeowners only want the space closed in against bugs and wind, and that's our patio enclosures work. If your room needs an odd shape, a particular roofline or a look of its own, we plan it as one of our custom sunrooms.
Permits for three-season sunrooms in Fontana
When your room needs a permit, Fontana's Building & Safety office takes the permit and plan check application at its customer service counter and asks applicants to set up an account on the Build Fontana Public Portal. If you're not sure whether your room needs one, that office is the one that decides, so don't assume it doesn't. The city lets only the contractor signing on record or the property owner sign for the permit, and anyone else needs written permission notarized by one of them. We pull it in our name as your contractor and handle the drawings, the inspections and the back and forth with the city. Paperwork is the one part of the job nobody asks to watch.
Most of the three-season rooms we build here go onto a patio slab that's already behind the house, often under an older cover, so the base and the wall the room ties into get my attention first. We see the same kind of patios on jobs in Rialto and Rancho Cucamonga.
- 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 a three-season room
Call or send the form
You call or write, and we get back to you to set a time for the visit. Tell us roughly what you have in mind so I know what to look at.
I look at your base
I come out and look at the base, the house and how you want to use the room. You get a written quote that says what's in it and what isn't, so the price doesn't change on you halfway through.
We handle drawings and permit
We draw the room up and take care of the permit with the city. The schedule we give you already counts the city's review time, so it isn't a surprise later.
We build, then walk it
Our own crew builds the room. When it's done, I walk the finished room with you and go over anything you want to look at.
Why Fontana homeowners call Sunscape Fontana Sunrooms & Patios for a three-season room
I do every estimate myself
I'm the one who comes out, looks at your base and your house, and writes the quote. You're talking to the person who planned the job, not a salesperson who's moved on to the next driveway.
Planning rooms through since 2013
I ran the schedule for a busy construction company for years before I started this business in 2013. That's why our rooms get planned all the way through before anyone picks up a tool, and the hard conversations happen at your kitchen table instead of mid-job.
Any city office, handled by us
We work across Fontana and the cities around it, and we deal with whichever city or county office covers your address. You don't have to learn a new permit counter just because you live in Eastvale or Upland.
Licensed and fully insured, every build
We're licensed and fully insured. It's the first thing worth asking anyone who'll work on your house, and I'm glad to answer it at the estimate.
Your satisfaction, guaranteed. When you're ready, send us a few details about your patio and I'll come out to take a look.
Request an estimateGet a written quote for your three-season sunroom
We reply within one business day, and I come out for a free on-site estimate with no obligation. I'll look at your base, the house wall and how you want to use the room, then send a quote that shows what's in the price 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 three-season sunrooms in Fontana
What is a three-season sunroom?
A three-season sunroom is an enclosed room on your house that isn't heated or cooled, with uninsulated windows or screens. The sunroom industry itself classes it as space that isn't living space and isn't conditioned, so think of it as a closed-in patio rather than an extra bedroom.
How much does a three-season sunroom cost in Fontana?
A three-season room added to an existing base in San Bernardino County usually costs about $95 to $130 per square foot. That range leaves out insulation, extending heating or cooling, plumbing and permits, so each of those adds to the total. Your written quote from the on-site visit spells out what's in your price and what isn't.
Can my existing patio slab hold a three-season sunroom?
It may, but an existing base can need reinforcing to carry the room's added weight, so I check it on the first visit and price any reinforcing up front. Before anyone saws into or breaks a slab, building guidance says to find out whether it's a post-tension slab, one with steel tendons run through it, because cutting a tendon is dangerous and expensive to repair.
Who should pull the permit for a sunroom in Fontana?
Your contractor should. Fontana's permit page warns that if a contractor asks you to get the permit for their work, you take on the liability for the project, including taxes and personal injury. Building without a permit is a matter under the city's municipal code, which is why we pull ours in our name and never ask you to.
How do I choose between a three-season and a four-season sunroom?
Choose a four-season room if you want the space heated and cooled, since those are generally fully enclosed with all-weather windows, and a three-season room if you don't need that. Compare both before you settle, because insulation is far easier to build in at the start than to add later, and I'm happy to talk through both at the estimate.
What are the roof panels on a three-season sunroom made of?
Sunroom roofs are typically insulated aluminum panels, according to one sunroom maker, and thicker panels carry more insulation and can span farther. Asking about panel thickness is a quick way to see how well a roof is insulated, so it's a fair question to put to any quote.
Other rooms we build in Fontana
Patio enclosures
Patio enclosures suit you if the goal is keeping bugs, wind and dust off the space you already have.
Custom sunrooms
Custom sunrooms are for a room that has to fit an unusual layout, roofline or style your house already has.
Get your three-season room planned right
Have the room's rough size, what it'll sit on and whether you want insulation or power ready when you call (909) 346-1870, and we can get to real numbers sooner.
Request an estimateCall (909) 346-1870