Sunroom Contractor in Corona, CA - Rooms Built Around How You Live
Temescal Valley Sunrooms & Patios builds sunrooms, patio enclosures and patio covers for homes in Corona, CA, turning bare patios, old decks and tired covers into rooms you'll actually use. We're based nearby in Temescal Valley.
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Corona homes and the patios behind them
Corona is a big city to work in. You'll find older houses close to the middle of town and newer tract neighborhoods spread out toward the hills, and the backyards vary as much as the houses do. Most of the calls I get here start the same way, with a bare concrete patio, a deck that's seen better days or a tired patio cover, and a homeowner who wants a room they'll really use. We see a lot of the same just next door in Norco and Home Gardens.
That's why I look at what's already out back before anyone draws a thing. A room is only as good as the slab or deck it sits on and the wall it ties into, and an older house and a newer one rarely meet a new room the same way.
What building in Corona means for your room
When your room needs a permit, it comes from the City of Corona's building office, and nothing gets built until it's issued, so the city's side often sets your start date more than our calendar does. I put the plans and paperwork together and file them for your address. Before you hire anyone, us included, make sure they hold a California contractor license and a Corona business license, and ask to see both.
Size matters on price, but so does what the room sits on, because a slab or deck that can carry the room costs less to build on than one that needs new footings first. Glass or screens, an insulated roof, how the room meets your house wall and whether you want power or heating and cooling all move the number too, and we bring in licensed trades for that electrical and heating and cooling work. The schedule mostly turns on the permit and on what has to be ordered, and your written estimate spells out both for your own room. We work the same way across this part of Riverside County, from Eastvale down to Murrieta.
What do Corona patios and decks need most?
Most patios here weren't poured with a room in mind, so the first job is finding out whether the slab is thick enough and level enough to carry walls and a roof, or whether it's cracked or settled somewhere you can't see from the chair. Older decks get the same hard look at the framing underneath. If something won't hold, I'll tell you straight, and we fix the base before we build on it instead of covering the problem with a new floor.
Some Corona properties also fall under the city's construction requirements for fire hazard severity zones, and those can change how a room gets built. We check with the city whether they apply to your address before we settle on a design.
- Call (951) 336-8162
- Mon–Fri: 6 AM–9 PM, Sat–Sun: 7 AM–9 PM
- Corona, CA 92883
Sunroom work we do in Corona
Patio-to-sunroom conversion
Lots of Corona backyards already have a concrete patio, and closing it in is often the most direct way to get the room you want. We check the slab first, then frame, roof and glaze the room so it ties cleanly into your house.
Three season sunrooms
If you want a room for mornings, evenings and weekends without paying to heat and cool it, a three season sunroom is usually the right fit. We build them with windows or vinyl panels that open up, on the slab or deck you already have.
Patio cover installation
Plenty of the covers we see here are faded or sagging, and some folks just want good shade before they think about walls. We put up a new cover and can plan it so walls can be added later if you decide you want a room.
Deck-to-sunroom conversion
Some Corona homes have a raised wood deck off the back, and an old one can become a room if the framing underneath will carry it. We open it up, shore up or replace what's weak, and build the room on top.
Patio enclosures
When you like the cover you've got and just want to keep out dust, bugs and leaves, enclosing it is a lighter job than a full room. We add walls, windows or screens and a door, and keep the cover you already paid for.
Sunroom remodeling
Some older Corona homes came with a sunroom that's drafty, leaky or just dated, and it's often worth fixing instead of tearing out. We replace worn panels, windows and roofing and update the room so it fits how you use it now.
How it goes when you call us about a Corona sunroom
Call or send a request
Call (951) 336-8162 or use the form, and we'll get back to you to set a time to come out. Tell us a little about the patio, deck or cover you have now.
I come out and measure
I measure the space, check what the room will sit on and how it meets your house wall, and ask how you plan to use it. You get a written estimate in plain words, so you know exactly what you're buying before you sign anything.
We file permits and build
Once you say go, we put the plans together, file the permit when your room needs one and build it with our own crew, with me running the job. Corona schedules inspections Monday through Thursday, so we plan the work around those days and are there for each one.
Walk the finished room together
When it's done, I walk the room with you, show you how the windows, doors and screens work, and answer whatever you're wondering about. Satisfaction guaranteed on every job.
Get a written sunroom estimate for your Corona home
Send the form and we'll get back to you within one business day to set up a visit at your Corona house. The estimate is free and on site, I do the measuring myself and write the price up in plain words, and there's no obligation to go ahead.
- Licensed and fully insured.
- Phone
- (951) 336-8162
- Location
- Corona, CA 92883
- Hours
- Mon–Fri: 6 AM–9 PM, Sat–Sun: 7 AM–9 PM
Questions about sunrooms in Corona
How do I get a building permit for a sunroom in Corona?
Building permits in Corona come from the city's Planning & Development department, which you can reach on its permit line at 951-736-2250 or through the city's permits page. When your room needs one, we put together the plans and paperwork, file for your address and are there for the inspections, so you don't have to handle it yourself.
When does a contractor need a California state license to build a sunroom?
In California, a contractor needs a license from the Contractors State License Board for any job that needs a building permit, uses hired workers or comes to $1,000 or more in labor and materials. That small-job cutoff went from $500 to $1,000, and it only covers work with no permit and nobody hired, so a sunroom build doesn't fit under it. We're licensed and fully insured, and it's worth checking any contractor before you sign.
Does a sunroom contractor based outside Corona need a Corona business license?
Yes. The City of Corona requires a business license for every business operating in the city, including ones whose main address is somewhere else, like ours in Temescal Valley. Licenses renew every year on their anniversary date, so it's fair to ask any contractor whether theirs is current.
Which building code has Corona adopted for new sunrooms?
Corona has adopted the 2025 edition of the California Building Standards Code, through an ordinance the city council adopted on November 19, 2025. We draw your plans to the code the city checks them against, so the plans and the inspections line up.
How much does a sunroom cost in Corona?
The biggest swing in a Corona sunroom's price is usually whether your existing slab or deck can carry the room or needs new footings first. After that, glass versus screens and whether you want it heated and cooled matter most, and the written estimate from my visit lays out each piece. If the budget's tight, I'd rather build you a smaller room done right than a bigger one that cuts corners.
What is the best way to turn an old patio cover into a sunroom in Corona?
The best way is to find out first whether the cover's posts, beams and ledger, the board that fastens it to your house, can carry walls and windows, because a lot of older covers were never built for that weight. If they're sound, we enclose under the cover you have, and if they're not, we replace it with a roof made for a room.
Ask about your Corona sunroom and permits
Call (951) 336-8162 any day of the week until 9 PM, or send the form, and ask what your room will need from the city before you settle on a design.
Request an estimateCall (951) 336-8162