Sunroom contractor in Temescal Valley, CA - rooms planned around slope and slab
Comfortview Corona Sunrooms & Patios builds sunrooms, patio enclosures and patio covers for homes in Temescal Valley, CA, turning a patio, deck or cover into a room your family can use for more of the year.

Temescal Valley homes as we see them
Temescal Valley sits just south of Corona along the I-15, and as a sunroom contractor in Corona, CA, we're down here often. Most of the houses we see are newer, built in planned neighborhoods with stucco walls, tile roofs and a concrete patio off the family room, and some sit on sloped lots that step down toward the hills. A lot of homeowners bought with a builder's slab or a simple cover out back and now want a room they'll actually sit in.
That shapes the job from the first visit. Before we talk about glass or roof panels, I look at whether the slab was poured to carry walls, how a new roof will meet your stucco and tile, and how much level ground a sloped yard leaves us.
Services in Temescal Valley, CA
Patio-to-sunroom conversion
Many homes here came with a concrete patio that gets used a few weekends a year. Enclosing it turns space you already have into a room, and we plan the walls and roof around that slab.
All season rooms
Homeowners who want a room they can use from morning to evening, any month, usually ask about all season rooms. We build them with insulated walls, roof and glass, so the space works like part of the house rather than a covered porch.
Screen room installation
Houses that back onto open land tend to get more bugs on the patio than their owners would like. A screen room keeps the open-air feel with fewer of them, and it's the simplest room we build.
Deck-to-sunroom conversion
On the sloped lots here, the outdoor space is often a raised deck instead of a slab. We can build a room on it once the framing underneath is ready to carry one.
Patio cover installation
Some yards only need a cover over the patio, and that's the lighter project. If you might enclose it someday, tell me at the estimate, because that changes how we'd build the cover now.
Sunroom design
Most homes here have stucco walls and tile roofs, and a room looks best when it matches them. We draw the room around your roofline and finish so it reads as part of the house.
Working in Temescal Valley under county rules
Temescal Valley is unincorporated, so there's no city building office here, and building permits come from the County of Riverside's Building and Safety Department. When your room needs a permit, the county's review has to finish before we can schedule the build, so I check what the county expects for your address early, and we prepare the paperwork and work through the process with you. You can check any contractor's state license with the Contractors State License Board. You won't find a county business license to ask about, because the county doesn't issue them, and businesses in the unincorporated county register with its Stormwater Compliance Program instead. What moves the price is mostly the kind of room, its size and how much work the slab or deck needs first, and your written estimate spells out the room type, materials and what's included.
From Corona it's a short drive down the I-15 for us, so I can come out to measure and come back if a question turns up while we plan. We also build rooms in Woodcrest and Riverside, and the order is the same there, with the base checked first and the room after.
What Temescal Valley lots ask of a sunroom
Many houses here are new enough that the patio slab still looks fine, but a slab poured for a grill and some chairs wasn't necessarily poured to hold walls and a roof. I check its thickness and edges and look for cracks or settling, and if it needs footings added, I'll explain why before it goes on your estimate.
Sloped lots raise a different question, which is how much level ground we have. Where the yard drops away, the deck usually becomes the base, and its posts and beams often need reinforcing before they carry a room.
Get a written sunroom estimate for your Temescal Valley home
We reply within one business day and set a time for me to come out to your Temescal Valley home, look at the space and take measurements. The estimate is free, done on site and given to you in writing, with no pressure and no obligation.
How a sunroom job goes when you call us from Temescal Valley
Call or send the form
Tell us whether you're starting from a patio, a deck or an existing cover. A few photos help me know what I'm walking into.
I measure the space
I come out myself to look at your slab or deck, your roofline and the yard around it. It helps if you've thought about how you'd use the room, since that points to the room type.
Review your written estimate
You get the room type, materials and what's included on paper. I'll go over any choice that changes the price so you know what you're paying for.
Check what the county needs
We check with the county's building office what your address requires, and if your room needs a permit, we prepare the paperwork with you. The county's review has to finish before the build goes on the schedule.
Build and walk through
Our installers and I build the room together, so the person who measured is on site every day. I walk through the finished room with you before we call it complete.
Sunroom questions from Temescal Valley homeowners
Do I need a permit for a sunroom in Temescal Valley?
Ask the county's Building and Safety Department for your address before any work starts, and we do that check with you as part of planning. The county's handout of work that needs no building permit covers jobs like painting, flooring, cabinets and like-for-like window swaps that keep the existing frame size, so a new room is worth asking the county about directly.
Can I fix the roof where my patio cover meets the house without a permit in Riverside County?
A small roof repair is on the county handout's no-permit list when it covers less than 25% of the legally existing roof, involves no framing work and happens no more than once in 12 months. Tying a new sunroom or cover into your roof is framing work, so that's a separate question for the county. If you're unsure which side your repair falls on, I'll look at it during the estimate.
When does a contractor need a California license to build a sunroom?
A contractor needs a state license when the job requires a building permit, uses any additional workers, or costs $1,000 or more in labor and materials together. Ask for the license number on any room project and look it up with the board. We're licensed and insured.
How do I check if my Temescal Valley home is in a fire hazard zone?
Enter your address on the state's Fire Hazard Severity Zones map, which rates wildfire hazard for the properties it covers. That viewer covers the State Responsibility Area with maps that took effect April 1, 2024, and the county was required to adopt its own zone maps for local areas by July 2025, so if your address isn't on the state map, ask the county. We look up the zone for every address here before we plan the room.
How much does a sunroom cost in Temescal Valley?
The cost comes down mostly to the kind of room, its size and what your patio or deck needs before we build on it. A screen room is the lightest project and an insulated all season room is the biggest, and more glass, electrical work, a tie-in to a tile roof or a slab that needs footings all add to it. Your free written estimate shows where each part of the price comes from.
How long does it take to add a sunroom in Temescal Valley?
Most of the time goes into planning and, when a permit is needed, the county's review, rather than the build itself. The county sets the length of its review, and we can't schedule construction until it's done. Once we start, a screen room on a sound slab goes up faster than an insulated room on a deck that needs reinforcing.
Tell us about your Temescal Valley patio
We answer (951) 281-8086 seven days a week from 8 AM to 9 PM, and if you use the form, a photo of your patio, deck or cover and any permit questions you have help me come out ready.




