Sunroom contractor in Costa Mesa - a real room on the patio you already have
San Juan Capistrano Sunrooms and Patios builds sunrooms, patio enclosures and screen rooms for homeowners in Costa Mesa, CA, turning the slab or deck behind the house into a room you can use most of the year.
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Costa Mesa homes and their older backyard patios
Costa Mesa is a busy, working city, with shops and offices along the main roads and blocks of houses tucked in behind them. A lot of the homes we see are older single-story houses on modest lots, and many already have a concrete patio out back, sometimes under an aluminum cover that's been up for decades. It sits right beside Newport Beach, but the backyards here tend to be plainer and more lived-in, which is the kind of space people call us about.
With a smaller yard, the room usually goes right where the patio already is, so the job starts with whether that slab and that back wall can carry it.
Working in Costa Mesa: permits, licenses and what moves the price
In Costa Mesa, building permits come from the city's Building Safety Division, and how long the city takes with an application is the one part of the schedule nobody on our side controls. We handle the permit paperwork and the city appointments for you, and we take the time to get the plans right before they go in. Before you sign with anyone, ask to see their state contractor license, ours included, because a sunroom is too big a job to take on trust.
Most of what we build here goes on an existing slab or under an older cover, so the price moves with the room you pick, from a screen room up to a four-season glass room, along with its size, how the roof ties into your house and whether the slab needs work first. The schedule turns on the permit and on that prep, and the written estimate I give you after measuring is where you get your own figure. We do the same kind of work next door in Irvine, and our crew comes up from San Juan Capistrano for the jobs here.
What do Costa Mesa backyards need most?
Old patio covers are the thing I notice most on these houses. Plenty of them sit over a slab that was poured for a table and a grill, not a room, so before we enclose anything I check whether the slab is level and sound and whether the cover is worth keeping or should come down. Building on a weak base just moves the problem into your new room, so we sort that out first.
Small lots are the other reason people call, because when the yard can't give up more space, the patio is the easiest place to gain a room without losing the rest of the yard.
- Call (949) 312-6067
- Mon–Sun: 6 AM–11 PM
- San Juan Capistrano, CA 92675
Sunroom work we do in Costa Mesa
Patio-to-sunroom conversion
Many Costa Mesa homes already have a slab out back. We check it's level and sound, then build the room right on it.
Patio enclosures
When an old patio cover is still solid, enclosing it can make sense. We add walls, windows and doors so it closes up against wind.
Custom sunrooms
Odd-shaped yards and older rooflines don't always fit a standard kit. Our custom sunrooms are sized and roofed to match your house.
Patio cover installation
Some homeowners here want shade over the slab but aren't ready for walls. We build a cover sized so walls could go in later.
Sunroom remodeling
Older sunrooms here often have tired glass, leaky seals or a roof that runs hot. We replace what's worn and keep what's still sound.
Screen room installation
On a smaller lot, a screen room gives you an outdoor room for less than glass. We frame it to keep bugs out and breeze in.
How it works when you call us in Costa Mesa
Call or send us a message
Call (949) 312-6067 or use the form, and we'll set a time for me to come out to your house. It helps if you're home so you can show me how you'd like to use the space.
I measure and look it over
I measure, look over the slab, deck or cover the room would sit on, and ask how you plan to use it. You get a written estimate that spells out the room type, the roof and what's included, and we go over it until every line makes sense, even if that means answering the same question twice.
Paperwork first, then the build
Once you say go, we take care of the city paperwork, and if you're in an HOA we help you put together what they ask for first. Our own crew builds the room, and I'm on site checking the work as it goes.
Walk through the finished room
When it's done, I walk through the room with you and show you how everything works. The work is backed by our satisfaction guarantee.
Get a free on-site sunroom estimate in Costa Mesa
Send the form and we'll reply within one business day to set up a visit. I come out to your Costa Mesa home myself, measure the space and give you a written estimate, and there's no pressure to book.
- Fully licensed and insured.
- Phone
- (949) 312-6067
- Location
- San Juan Capistrano, CA 92675
- Hours
- Mon–Sun: 6 AM–11 PM
Questions about sunrooms in Costa Mesa
Do I need a licensed contractor to build a sunroom in Costa Mesa?
Usually, yes, because the California Contractors State License Board requires a license whenever a project needs a building permit, uses employee labor, or totals $1,000 or more in labor and materials. The board also says a bigger job can't be split into smaller contracts to get under that $1,000 line. We're fully licensed and insured.
How do I apply for a building permit in Costa Mesa?
You apply online through TESSA, the city's permit system, where you submit plans and enter everything directly, as the city explains on its building permits page. Paper forms are ignored and incomplete applications get sent back, so it pays to have the plans complete before you start. When we build your room, we do this part for you.
Can I get an Insta-Permit for a sunroom in Costa Mesa?
A sunroom isn't on the city's list of Insta-Permits, which are meant for simple jobs with a limited scope, like residential HVAC, re-pipes, water heaters, EV chargers, panel upgrades and re-roofs. What your room needs is a question for the Building Safety Division, and we work that out with them before we build.
What happens if a contractor works without a license in California?
A first offense is usually a misdemeanor, with up to six months in jail, a $500 fine or both, and an administrative fine of $200 to $15,000 can come with it. That's reason enough to ask for a contractor's state license before anyone starts on your patio.
How much does it cost to build a sunroom in Costa Mesa?
Your price comes from the written estimate I give you after measuring, because it turns on the room type, its size, the roof and the condition of what it sits on. A screen room on a sound slab sits at the lighter end, and a four-season glass room tied into an older roofline sits at the heavier end. Fixing a cracked or sloped slab, or taking down an old cover first, adds to it.
What is the best way to turn an old patio into a sunroom in Costa Mesa?
Start with what's already there, because the slab and any existing cover decide what can go on top. If the slab is level and sound, we usually build right on it, and if the cover is solid we can sometimes enclose it instead of starting over. If either one isn't up to it, I'll tell you before you pay for a room on a weak base.
Book your Costa Mesa sunroom estimate today
Call (949) 312-6067 and bring every question you've got, because I'd rather answer one twice now than have you wondering about it after the room is built.
Request an estimateCall (949) 312-6067