Four season sunrooms in Norco CA - a heated, cooled room you'll use all year
Got a patio, deck or old enclosure you only use half the year? We build sunrooms that stay comfortable, sealed and worth sitting in.

Is a four season sunroom right for your Norco home?
A four season sunroom is a fully enclosed room with heating, cooling and all-weather windows, so it works like any other room in your house. We build four season sunrooms in Norco, CA and all over the cities around it, from Corona and Eastvale to Riverside, Ontario and beyond.
Most calls I get start with a patio, a deck or a tired old enclosure that sits empty most of the year. The price moves with the size of the room, whether it needs its own foundation or goes on a deck that has to be reinforced, the heating and cooling, the glass, and whether we open it up to the house. The schedule turns on the same things, mostly how much work the base needs and how soon the design is settled, and your own figure comes from the estimate once I've seen the spot.
What goes into our four season sunroom builds
A heated and cooled room only works if the windows and insulation are part of the plan from the start, so that's where I start. Before anything gets framed, we settle the glass and the insulation for the walls, floor and roof, because they go in much easier during the build and adding them later often costs more. Early on I'll also ask whether you want the room closed off behind your existing door or opened up to the house, since that changes how it's framed and heated. Then our crew builds the base, frames the walls and roof, sets the windows and seals the room where it meets your house and the ground, because a room that lets water in at the base is money wasted.
Not everyone needs heat and air. If you'd mostly use the space when the weather's mild, a three season sunroom does the job for less, and if you've already got a covered patio you just want closed in, look at our patio enclosures. I'll tell you which one fits, even when it's the smaller job.
Planning a four season sunroom in Norco
Before we design the room, I ask Norco homeowners to look up their address on the State Fire Marshal's fire hazard map. You type in your address and it shows whether your lot sits in a Fire Hazard Severity Zone. The Fire Marshal has started handing its maps to local governments, and if your lot lands in what the map calls a Local Responsibility Area, it says to check with your city about it. It takes a few minutes, and it's better to know before the design is set than after.
A lot of the rooms we build here start on top of something that's already there, an old patio slab, a covered patio or a deck. What's underneath decides how we build the base, so I look at it closely, and we see the same mix of patios and decks on jobs in Corona and Eastvale.
Four season sunroom, step by step
Call us or send the form
Call (951) 393-1005 or fill out the form, and we'll set a time for me to come by. Tell us if the room would sit on a patio, a deck or bare ground.
I come out and measure
I look at the spot myself, measure and ask how you plan to use the room. That's the time to bring up size, glass and whether it should open into the house.
You get a written estimate
It spells out what's included and what isn't, so you can compare it line by line with anyone else's. If the job needs a permit, we put the application together, deal with your city or county building office and set up the inspections.
Our crew builds the room
Our own crew does the build from the base to the last window. When it's finished, I walk the room with you before we call it done.

Get a free on-site estimate for your four season sunroom
We get back to you within one business day to set a time for me to come out and measure. The estimate at your place is free, with no pressure and no obligation, and you'll see exactly what's in it before you decide anything.
Questions before you book a four season sunroom
What's the difference between a four season and a three season sunroom?
A four season room is heated and cooled and has all-weather windows, while a three season room generally has no heating or cooling and uses uninsulated windows or screens. Enclosed porches and enclosed patios usually fall in the three season group. If you want to sit in the room on the hottest and coldest days, you want four season.
Do I have to take out my back door and windows to add a four season sunroom?
No, you can keep them. One design keeps your existing doors and windows and gives the sunroom its own heating or cooling, which keeps it thermally isolated, or sealed off from the house's heat and air, while the other is built like a regular room addition, so you decide whether it opens into the house. If you're on the fence, I usually lean toward keeping the door, because you can close the room off and run it on its own.
How much does a four season sunroom cost near Norco, CA?
A sunroom in the Riverside area usually costs about $17,000 to $120,000 per job, and that's the going rate for the work around here, not our price. Larger rooms that need a foundation and have heating and air conditioning fall toward the high end, so size and the base matter a lot on a four season room. Your own figure comes from the estimate after I measure.
How much can a contractor ask for up front on a sunroom in California?
A contractor in California can't ask for or take a down payment of more than $1,000 or 10 percent of the contract price, whichever is less. California's Contractors State License Board says that rule covers every home improvement job, and each payment after that has to be listed in the contract and based on work already done or materials already delivered to your house. Check any sunroom bid against those rules before you sign.
How do I know if my deck can hold a sunroom?
Usually a deck needs added beams, posts or footings before it can carry a sunroom's weight and loads. The usual advice is to have a local structural engineer look at the deck first to see whether it's suitable at all. I'll look at what's under it when I come out, and we can talk through what that means for your plan.
What is the best way to pick windows for a four season sunroom?
Start with each window's solar heat gain coefficient, or SHGC, the rating for how much of the sun's heat gets through, and go with a lower number if you want less heat coming in. Many building codes also call for safety glass like tempered glass where people are likely to bump into it, such as in doors, railings or next to stairs, so ask which panes in your plan use it.
Why Norco homeowners call Suncrest Norco Sunrooms & Patios for four season rooms
I measure every job myself
I come out myself to look at the spot and take the measurements, and our own crew does the build. You're talking to the person who answers for the room, not a salesperson.
In business since 2017
I spent years at a desk before I learned this trade on a sunroom and patio crew, and I started this business in 2017. That's nine years of building rooms people actually sit in.
Licensed and insured in California
We're licensed and fully insured. The state contractor board licenses and regulates construction work in California, so a license is the first thing worth asking any builder about.
Satisfaction guaranteed on every job
That's our promise, and it starts before the build, because I'd rather talk you out of a room than put up the wrong one. If a three season room or a patio enclosure fits you better, I'll say so.
Get the plan right and the room gets used. Contact us or call (951) 393-1005, and I'll come take a look.
Other rooms we build
Three season sunrooms
For a room you'll use in the mild months and don't plan to heat or cool, this is the lighter, lower-cost build.
Patio enclosures
When you already have a covered patio and want it closed in against bugs and leaves without building a full room.
Start your four season sunroom estimate
Call (951) 393-1005 or send the form with your address, the room size you have in mind and whether it'll sit on a deck, so I show up ready to measure.





