Three season sunrooms in Colton, CA - a patio room built for how you'll use it
Got a patio you hardly use? We'll close it in with windows or screens so it becomes a room you actually step into.
- Licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
Is a three season sunroom the right fit for my patio?
A three season sunroom in Colton, CA is a room with uninsulated windows or screens that isn't heated or cooled, often called an enclosed porch or enclosed patio, and it turns a patio you rarely use into a sheltered room off the house.
Most people who call me have a patio or an old cover that gets used a few weekends a year, and the first thing we settle together is whether the room needs heating and cooling, because if it does, you're really shopping for a four season sunroom. After that, the price mostly comes down to the size of the room, whether the slab needs repair first, glass or screens, and whether you want insulation planned in, while the schedule turns on the slab and the city's permit review. We're based in Colton and build these in cities all around it, and when your project needs a permit we take care of the plans and paperwork. The written estimate I give you after a visit puts your own numbers on all of it.
What our three season sunroom work includes
Most of these rooms go on an existing slab, so I start by checking how the slab sits against the yard and looking for any real cracking, because the room is only as sound as what's under it. I also ask early whether you might want insulation, since insulated windows and insulation in the walls, floor and roof are much easier to put in while the room is being built, and adding them later can often cost more. Once those choices are made and the plans are approved, our crew frames the room, sets the windows or screens, puts the roof on and ties it into the house, then cleans up so you're left with a room ready to use.
If all you want is to close in an open patio, patio enclosures may be the simpler fit, and if your space has an odd shape or needs a layout a standard room won't give you, we build custom sunrooms too.
Glass windows all around
This suits people who want to sit out there on breezy or dusty days, because the windows close the room off from the yard. You can still slide them open when you want the air.
Screened walls
This suits people who mostly want shade and fresh air without the bugs, because screens let the breeze straight through. It's the lighter, more open choice, and the room still feels like part of the patio.
Three season sunroom permits and planning in Colton
In Colton, the city's Building and Safety Division handles plan check, permits and inspections for building construction, and plans are uploaded through the city's eTRAKiT portal. The city also says many of its permits need sign-off from the Planning Division or another department before anything is submitted online, and it asks applicants to talk with city staff first, so that conversation is where we start. When your room needs a permit, we confirm which building office covers your address, prepare the plans, handle the paperwork and set up the inspections, so you aren't left sorting out the order yourself.
Most calls we get here are for a patio slab off the back of the house, often with an old cover already over it. We see the same setup on jobs in San Bernardino and Redlands, where the building office isn't Colton's, which is why we check it for every address.
Why Colton homeowners call Sunbeam Colton Sunrooms & Patios for three season rooms
I do every estimate myself
I come out to look at the slab and where the room will meet the house, and I ask how you plan to use the space before anything gets drawn. Our crew builds from what we settled together, so nothing gets lost between the visit and the build.
Building sunrooms since 2013
I learned this work building rooms beside an experienced installer, and we've been building and remodeling sunrooms, patio rooms and covers since 2013. I'd rather spend an extra hour planning with you now than have you wish you'd picked a different room later.
Licensed and insured, just ask
We're licensed and insured, and you're welcome to ask which license we hold and check it with the state licensing board. It's worth asking any contractor, because California's awning license covers patio covers but doesn't include patio enclosures.
If a three season room sounds like it fits how you'd use your patio, call (909) 679-6010 or send us a message and I'll come take a look.
Request a quoteGet a free on-site estimate for your three season sunroom
Send the form and we'll reply within one business day to set up a time for me to come out. The visit is free, and the written estimate you get afterward comes with no pressure and no obligation.
What happens after you ask about a three season room
Call or send a message
Reach us at (909) 679-6010 or through the form, and we'll get back to you to set a time for the visit. Tell us a little about the patio and how you'd like to use the room.
I visit and look it over
I come out myself, look at the patio or slab and where the room meets the house, and ask how you plan to use it. Then you get a written estimate, and I'll go over what's in it until you're sure what you're paying for.
We handle permits and build
We take care of the plans and permit paperwork, then our crew builds the room. Colton schedules an inspection for the next day when the call reaches its inspection line by 4 pm, but Thursday and Friday calls roll to the following Monday, so a late-week inspection can mean waiting through the weekend.
Walk through it together
When the room is done, I walk through it with you and go over anything you want to look at twice. If something isn't how we talked about, that's the time to say so.
Frequently asked questions
How much does a three season room cost near Colton?
A three season room added to an existing base in the San Bernardino area usually costs about $95 to $140 per square foot, including labor. That figure leaves out insulation, extending heating or cooling, plumbing and pulling permits, and bigger rooms that need a new foundation sit toward the high end. Your written estimate shows what your own room comes to.
How is a three season room different from a four season room?
A four season room is fully enclosed, heated and cooled, with all-weather windows, while a three season room has uninsulated windows or screens and no heating or cooling. If you'll want the room heated and cooled, you're looking at a four season room. If you want a bright, sheltered spot off the house without that, a three season room fits.
Can my existing patio slab hold a sunroom?
Often yes, if it sits higher than the ground around it and has no more than hairline cracks. One maker's installation guide says the foundation must sit above the surrounding ground so standing water stays out, and large buckling in the concrete needs repair before the room goes on. I check both at the estimate.
Which Colton office handles building permits for a sunroom?
The city's Building and Safety Division handles plan check, permits and inspections for building construction in Colton. When your room needs a permit, we prepare the plans and take care of the submission for you.
How do I take care of a three season sunroom?
One sunroom company suggests checking the roof and gutters once a year and keeping the weep holes, the small drain openings in the frame, clear so water drains away. The same company says to keep window and door tracks clean and use pure silicone spray on them, because oil-based lubricants tend to attract dirt.
Can someone without a contractor license build my sunroom in California?
Only for very small jobs, because California's minor work license exemption tops out at $1,000. It also applies only to work that needs no permit, done by someone who employs no one on the project.
Other ways to close in your patio
Patio enclosures
A good choice when you want an open patio closed in without building a full room.
Custom sunrooms
For an odd-shaped space or a room that needs a layout all its own.
Colton, CA
Request your three season sunroom estimate
Have a rough room size in square feet, a few photos of the patio slab and your thinking on insulation handy, and the first call goes quicker.