Three season sunrooms in Rialto CA - a closed-in patio room you'll actually use
Patio sitting empty because of dust, bugs or a leaky cover? We close it in with windows so you get a dry, usable room.
- Licensed and fully insured.
- Free quotes on site.
- We reply within 1 business day.
What is a three season sunroom, and is it right for your Rialto house?
A three season sunroom is a closed-in patio or porch with windows or screens and no heating or cooling, and here in Rialto it's how we turn a patio you rarely use into a room you can step into right from the house.
If you've got a patio out back you hardly sit on, a three season room is usually the simplest way to put it to work, and if you already know you'll want it heated and cooled, that's a four season sunroom instead, which is a bigger build. The price moves with the size of the room, whether your slab or deck can carry it as it is, and whether you add insulated windows and insulation. The schedule mostly turns on the city's plan review if your job needs a permit, and on what I find once I've looked at the slab. After I come out, you get a written quote for your house.
How do you know your patio is ready to be closed in?
A patio nobody sits on
The furniture is out there, but it's covered in dust, leaves or bugs most days, so everyone stays inside. That usually means the space is fine and the openness is the problem, and every season you wait is another one you're paying for room you don't use.
Screens torn or sagging
An old screen room with torn mesh and loose frames lets in the dust and bugs it was built to keep out. It usually means the frame is worn too, and patching screens every year can end up costing more than closing it in with windows.
Water where the cover meets the house
Stains on the wall or drips along the line where your patio cover meets the house mean the flashing there, the metal that turns water away, has failed or was never right. Left alone, that water works into the wall, so it's the first thing we fix before we close anything in.
Often built alongside a three season room
Patio enclosures
If your patio cover is already solid, closing in the sides may get you most of what you're after.
Custom sunrooms
For an odd roofline, a sloped yard or a room shaped around exactly how you plan to use it.
How we build three season sunrooms
I start by checking the slab or deck that will carry the room and how your house wall is built, since that's where the new roof ties in and where water tries to get in. Then our crew frames the walls, flashes and roofs the joint at the house, sets the windows or screens, and finishes the floor and trim before we clean up. Plenty of people start with a three season room and later wish they'd gone warmer, so we quote it with and without insulated windows and insulation in the walls, floor and roof. Those go in much easier while the room is being built, and adding them later can often cost more, so you see the difference before you decide.
If you already have a covered patio and mostly want walls and windows on it, a patio enclosure may be the better fit. If your yard, roofline or plans don't suit a standard layout, we design custom sunrooms around the house you have.
Standard three season room
Uninsulated windows or screens with no heating or cooling, for owners who want a sheltered, closed-in patio and don't need it to work like an inside room. It's the simpler build and the simpler price.
With insulated upgrades
Insulated windows plus insulation in the walls, floor and roof, for owners who think they might want to heat or cool the room someday. The walls and roof are open now and won't be later, so this is the easy time to do it.
Get a written quote for your three season room
Send the form and we'll reply within one business day to set up a free on-site estimate, with no pressure and no obligation. Calling (909) 546-5002 works too.
Call (909) 546-5002Why Rialto homeowners call Suncraft Rialto Sunrooms & Patios for three season rooms
I measure your house myself
I come out myself to measure and look at the slab, the deck and how the house is built, and our own crew does the building with me on site. The person who quoted your room is there when it goes up.
Closing in patios since 2023
I learned framing and glass work on other builders' crews and started this business in 2023. Closing in patios is what we're best known for, and most of our calls come from people who want more usable space out back.
Licensed and fully insured on every build
We're licensed and fully insured, so you aren't carrying the risk for the work on your property. Satisfaction guaranteed, and if a slab or an idea won't work, I'll tell you no before we build it.
Fire zone rules checked first
The Rialto Fire Department says homeowners in High and Very High Fire Hazard Severity Zones must make sure new construction and renovations follow Wildland-Urban Interface building codes. We check where your address falls before we settle on materials, so the room suits the rules for your lot.
A room like this is only worth it if it stays dry where it meets your house, so the first step is a straight look at your slab and wall. Send us your details or call (909) 546-5002.
What happens after you call about a three season room in Rialto?
Call or send the form
Call (909) 546-5002 or send the form with a little about your patio, and we'll get back to you to set a time. Our hours run until 10 PM on weekdays and 9 PM on weekends.
I come out and measure
I measure, look at the slab or deck and how the house is built, and we talk through what you want the room for. A room for plants and a room for family dinners don't always need the same things.
Written quote and permit side
You get a written quote that spells out what's included, priced with and without the insulated upgrades, so you know the number before anything starts. When the job needs a permit, we handle the application and build the city's plan review time into your start date.
Our crew builds it
Our own crew does the build with me on the job, right through the final inspection when there is one. We clean up before we leave, and you get the room you were quoted.
Common questions
How is a three season sunroom different from a four season sunroom?
A three season room is enclosed but not heated or cooled, with uninsulated windows or screens, while a four season room is fully enclosed, heated and cooled, and fitted with all-weather windows. So the choice is between a simpler room and one built for use in any weather, and if you're leaning toward the second, our four season sunrooms page covers it.
How much does a three season sunroom cost near Rialto?
In the San Bernardino area, a three season room built on an existing base usually costs about $95 to $140 per square foot installed, covering labor, standard-grade windows, siding, roofing, fixtures and electrical access. That figure leaves out insulation, extending heating or cooling, plumbing and pulling permits, and larger rooms that need a foundation sit at the higher end of local sunroom prices. Your written quote from the site visit shows what's in yours.
Who reviews construction plans in Rialto, and how long does review take?
The city's Building Division reviews plans and inspects construction in Rialto to make sure it follows the California Building Codes and city ordinances. The city lists a review time of 30 days for plans in review with city departments, so plan for that wait before building starts.
How much can a contractor ask for up front on a sunroom in California?
Under state contractor board rules, a contractor can't ask for or accept a down payment of more than $1,000 or 10 percent of the contract price, whichever is less. Later payments have to be listed in the contract and tied to work done or materials delivered, and any change to the contract has to be in writing, easy to understand, and tell you about your right to cancel.
What should I ask a sunroom contractor before I hire one?
Ask who on the crew handles each trade the room needs, because one sunroom maker's installer training lists flashing to control water, framing, roofing, electrical work, flooring and footings as skills the job can require. A crew that's good at framing but guesses at flashing is how you end up with a leak at the house wall.
How do I take care of a three season sunroom?
Keep the door and window tracks clean inside and out, and keep the weep holes, the small drain slots in the frames, clear so water can get out. One sunroom company's care guide also suggests a pure silicone spray on doors and windows, since oil-based lubricants tend to attract dirt.
Tell us about your patio and slab
Have the rough room size, whether there's already a slab or deck, and your address handy when you call (909) 546-5002 or send the form, and the first visit goes faster.