Four season sunrooms in Fontana CA - a heated, cooled room you'll use all year
Patio too hot, too cold or too buggy to use most of the year? We build a room you can live in every month.
Request an estimate
Is a four season sunroom right for your Fontana home?
A four season sunroom is a fully enclosed room with all-weather windows that's heated and cooled, so it works like any other room in your house. At Sunscape Fontana Sunrooms & Patios, we design and build four season sunrooms in Fontana, CA and the cities around it. From the first visit to the finished room, the city's plan review usually sets the pace more than the building does.
Most people who call me have a patio or deck they want to use more, and the first real question is whether the new room should be heated and cooled at all. If it should, the price mostly moves with the size, whether it needs a new foundation, the heating and cooling, and the windows and insulation you pick. The schedule turns on the city, meaning how many rounds of plan review it takes and whether your lot needs a soil report or an engineer's design. Your written quote gives you your own number before anything gets built.
How we build a four season sunroom
I start at your house. I look at the patio or deck we'd build on, how the room ties into your roof and walls, and how you plan to use it, because a room you heat and cool has to keep up with the rest of the house. That use decides the windows and insulation, so we settle them in the first plan, when they're much easier to put in than they are later, when adding them can often cost more. I also ask early whether your home has fire sprinklers, since the answer can change the design. Then we do the drawings and the permit. Our crew builds the foundation, frame, roof and glass, and we bring in licensed trades for the electrical and the heating and cooling.
Not every room needs heat and air. If you'll mostly use it in mild weather, our three season sunrooms usually cost less to build and still keep the weather and the bugs out. If you'd rather wall in the covered patio you already have without making it a full room, take a look at our patio enclosures.
Building a four season sunroom in Fontana
For an addition like this, Fontana requires a pre-alteration inspection of your house before any plans go in for plan check, and the contractor signs the permit application. So we pull the permit in our name and handle the drawings, the inspections and the back and forth with the city. A few of the city's rules shape the room itself. If your house has fire sprinklers, the addition needs them too, and if it doesn't, an addition bigger than half your existing floor area means sprinklering both. Where there's known expansive, compressible or shifting soil, or the lot sits in a special soil study zone, the city wants a soil report. A room that falls outside ordinary light wood framing needs its structure designed by a California registered engineer or a licensed architect.
Each of those can add cost and time, which is why I ask about them at the first visit and not in the middle of the job. Most calls here come from people who want more use out of a back patio or deck, and we build the same rooms for homeowners in Rialto and Rancho Cucamonga, working with whichever city or county office covers the address.
- 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 four season sunroom
Call us or send the form
Tell us roughly how big you want the room and whether you want it heated and cooled, and we'll set a time for me to come out. If you know whether your house has fire sprinklers, mention that too.
I visit and write the quote
I look at the base, 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, so there's nothing to guess at later.
We handle drawings and permit
We draw the plans and take them through Fontana's plan check, where the first review usually takes about 3 to 4 weeks and each round after amended plans go in takes about 2 more. Your schedule already counts more than one round, so a second look from the city isn't a surprise.
Our crew builds, we walk it
Our own crew does the building. When it's done, I walk the finished room with you so we both see it works the way you pictured it.
Why Fontana homeowners call Sunscape for four season sunrooms
I do every estimate myself
The person who walks your yard and writes your quote is the owner, and our own crew does the building. Nothing gets lost between the salesman and the crew, mostly because there isn't a salesman.
Planning rooms since 2013
I spent years running the schedule for a busy construction company before I learned to build these rooms, and we've been at it for 13 years now. That's why the plan, the permit and the city's review get worked out before anyone picks up a tool.
Licensed and fully insured crews
We're licensed and fully insured. Fontana asks every contractor and subcontractor on a job to show proof of state and city licenses, and that includes the trades we bring in for electrical and heating and cooling, so nobody working on your house is a question mark.
If you're still deciding whether the room needs heat and air, that's a good conversation to have at your kitchen table. Ask for a visit or call (909) 346-1870.
Request an estimateGet a written quote for your four season sunroom
Send the form and we'll reply within one business day to set a time for me to come out. The on-site quote is free and comes with no obligation, and at the visit I look at the base, the house and how you want to use the room.
- 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 four season sunrooms in Fontana
How do I choose between a three season and a four season sunroom?
Decide first whether the room needs to be heated and cooled, because that's the real difference. A three season room isn't heated or cooled and has uninsulated windows or screens, while a four season room is fully enclosed with all-weather windows. If you picture using it as a den or an office every month, you're usually looking at a four season room.
How much does a four season sunroom cost near Fontana?
Sunrooms of all kinds in the San Bernardino area usually run about $16,000 to $115,000 per project. Larger rooms that need a foundation and have heating and air conditioning sit toward the top of that range, which is where four season rooms tend to land. Your written quote from the on-site visit gives you the number for your house.
How much can a contractor ask for up front in California?
In California, a contractor can't ask for or take a down payment of more than $1,000 or 10 percent of the total contract price, whichever is less. After that, the payments are listed in the contract and match the work done or the materials delivered.
What causes a sunroom to get too hot?
Sun coming through all that glass is the usual cause. Studies from countries with warm climates report that solar heat can make a room like this less comfortable or raise how much cooling it needs. That's why we settle the windows at the first visit, not after you've moved the furniture in.
Who should pull the permit for a sunroom addition in Fontana?
The contractor doing the work should. The City of Fontana warns that when a contractor asks the owner to get the permit, the owner takes on the liability, including taxes and personal injury. We don't ask homeowners to pull permits for our work.
Does a heated sunroom need extra paperwork in California?
Yes, in most cases. Under state energy guidance, an addition that changes the house's outer shell or its heating, cooling or water heating needs a certificate of compliance, and that form goes in with the building permit application. We put it together with the drawings, which is about as exciting as it sounds.
Other rooms worth a look
Three season sunrooms
A lighter room without heating and cooling, for people who mostly want shade and fresh air on the mild days.
Patio enclosures
Walls and windows around the patio you already have, when you want it sheltered but don't need a full room.
Plan your four season sunroom with us
Have a rough room size in mind, know whether you want heat and air, and check whether the house has sprinklers, and the first visit covers a lot more ground.
Request an estimateCall (909) 346-1870