Sunroom remodeling in Fontana CA - a room you can use in July and January
Sunroom too hot in summer and cold all winter? We rework the windows, roof and walls so you actually use the room.
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Can an old sunroom be made comfortable again?
Usually, yes. Sunroom remodeling in Fontana takes the room you already have and reworks it, most often with better windows and insulation in the walls, floor and roof, so it stops cooking you in summer and chilling you in winter.
Most people who call us have a room that's too hot by noon in August and too cold to sit in by December, so it ends up holding boxes. The biggest thing that moves the price is whether the remodeled room gets heated and cooled like a four-season sunroom or stays unheated. After that come the size of the room and how much of the old windows, roof and slab is worth keeping. The schedule mostly turns on the city's review, which we plan around from the first day. Your written quote spells out what's in the price and what isn't, so you know what you're comparing.
How our sunroom remodeling works
Most remodels start with a room that's too hot, too cold or both, so I start by looking at the windows, roof and slab you have now and telling you what's worth keeping. Before anyone cuts into an old slab, we find out what's inside it, because another city's sunroom guide warns that cutting a tendon in a post-tension slab, one with steel cables pulled tight inside the concrete, can be very dangerous and expensive to repair. Then our crew takes out what isn't worth saving, sets the new windows, insulates the walls, floor and roof where the plan calls for it, and cleans up as we go.
Sometimes a remodel isn't the right fit. If you'd rather have fresh air and no bugs than a closed room, screen room installation may suit you better. If what you have is really a covered patio with a few panels on it, the job is closer to a patio-to-sunroom conversion, and we'll tell you so at the estimate.
What a sunroom remodel takes in Fontana
In Fontana, a remodel that alters or adds to your house starts with a pre-alteration inspection by the city, before any plans go in for review. If the remodel turns the room into heated or cooled living space, the plans need energy forms or calculations. If the work counts as an addition, the city's sprinkler rules come in. An addition to a house with fire sprinklers needs sprinklers too, and if your house has none, the addition and the house both need them once the addition is more than half of the existing floor area. Anything that isn't conventional light wood framing has to be designed by a California registered engineer or licensed architect. We pull the permit in our name and handle the drawings, the inspections and the back and forth with the city, and we do the same with whichever city or county office covers your address. Paperwork never hurries, so we start it early.
On remodels here, we usually find an older aluminum room with single-pane glass, a roof that holds the heat and a slab poured long before anyone planned to heat the space. Inland summers find every one of those weak spots, so we check all three before suggesting a fix. We see the same rooms 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 when you call about a sunroom remodel in Fontana?
Call or send the form
Call (909) 346-1870 or send the form and tell us what's wrong with the room now. We'll set a time for me to come out.
I look at your room
I check the slab, the house and how you want to use the room. You get a written quote that says what's in the price and what isn't.
We handle drawings and permit
Fontana's first plan check usually takes about 3 to 4 weeks, reviewing the plans against building, fire and safety codes. That wait is already counted in the schedule we give you.
Our crew builds, we walk it
Our crew does the work, and we bring in licensed trades when the room needs electrical or heating and cooling work. When it's done, I walk the finished room with you.
Why Fontana homeowners call Sunscape Fontana Sunrooms & Patios for a remodel
The owner does your estimate
I do every walkthrough and estimate myself, after years of running the schedule for a busy construction company. The person who plans your remodel is the one you can call about it later.
Building sunrooms since 2013
We've been in business since 2013, and most of our calls come from people who want more use out of a patio or deck. A remodel is the same problem in a different shape, and we've learned where old rooms tend to fail.
Licensed, insured and on the permit
We're licensed and fully insured, and Fontana requires the contractor to sign the permit application and show a current California State Contractors license. The city also asks every contractor and sub on the job to show State and City licenses and carry workers' compensation, which is why the trades we bring in are licensed too.
If you're not sure yet whether the room should be heated, that's what the visit is for. Get in touch and we'll find a time.
Request an estimateGet a written quote for your sunroom remodel
We reply within one business day, and I come out to look at the room, the slab under it and how you want to use it. The estimate is free, done on site and comes with no obligation.
- 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 sunroom remodeling in Fontana
What's the difference between a three-season and a four-season sunroom?
A four-season room is fully enclosed, heated and cooled, with all-weather windows, while a three-season room isn't heated or cooled and has uninsulated windows or screens. Going four-season ties the room into your house's heating and air conditioning, which raises the price. If you might want it warmer or cooler later, insulate during the remodel, because adding insulation and better windows afterward often costs more.
How much does a sunroom remodel cost in Fontana, CA?
Adding a sunroom in the San Bernardino area usually costs about $100 to $190 per square foot, installed, and that's the going rate for new rooms, so a remodel that keeps part of your old room can land differently. Larger rooms that need a foundation and heating and air conditioning sit at the high end. One local price for a three-season room covers labor, standard-grade windows, siding, roofing, fixtures and electrical access but leaves out insulation, extending heating or cooling, plumbing and permits, so check what each quote actually includes.
How long does a sunroom remodel take in Fontana?
Plan on more of the wait coming before the build than during it, because the city's inspection and first plan review happen before any work starts, as the steps above lay out. Once the permit is in hand, the build depends on how much of the old room stays and what the slab needs. We count the city's review into your schedule from the start, so it doesn't catch you off guard.
Should I pull the permit for my sunroom remodel or should my contractor?
Your contractor should. Fontana's permit page warns that when the contractor doing the work asks the owner to get the permit, the owner takes on the project's liability, including taxes and personal injury. That's why ours go in our name, and we don't ask homeowners to pull permits for our work.
How do I compare windows for a sunroom remodel?
Look at the U-factor, a rating for how much heat moves through the window, because a lower number means a better-insulated window. It matters most in a room you plan to heat and cool, where the windows do a lot of the work.
What is the best way to handle changes to a sunroom remodel contract in California?
Put every change in writing, because state law requires a change to a home improvement contract to be written, legible and easy to understand, and to tell you about your right to cancel. I'd rather settle changes at your kitchen table before the work than in the middle of it.
Other ways to get more from your patio
Screen room installation
Screen room installation gives you shade and a breeze without the cost of glass and insulation.
Patio-to-sunroom conversion
A patio-to-sunroom conversion closes in a covered patio you already have and turns it into a real room.
Tell us about your sunroom remodel
Call (909) 346-1870, email office@fontanasunroomsandpatios.com or send the form with the room's rough size and whether you want it heated and cooled, and the first conversation goes a lot faster.
Request an estimateCall (909) 346-1870



