Four season sunrooms in Anaheim CA - a sunny room that stays comfortable year round
Your patio sits empty half the year. We build a closed-in, heated and cooled room you can sit in any month.
- Services
- 16
- Service areas
- 12

Book a sunroom estimate at your home
Seeing your yard in person shows where the sun lands and what your slab can carry.
Request an estimateWhat is a four season sunroom, and what goes into one?
A four season sunroom is a room with solid walls and glass that's built to be heated, cooled or both, so it works like another room of your Anaheim house all year instead of a patio you only use on mild days. We plan and build them on the slab or deck you already have, or on a new base when yours can't carry the room.
Most people who call me have a patio or deck that's too hot by midafternoon and too cool after dark, so it sits empty most of the year. The price mostly comes down to the room's size, the glass, whether your slab or deck can carry the room as it stands, and whether the room opens into the house or gets its own heating and cooling. The schedule turns on how quickly those choices get settled, what the base needs, and the city's review of the plans. When I come out and measure, you'll get a figure for your own room and a plain order of what happens next.
How we build a four season sunroom
Before anyone draws a line, we settle whether the room opens straight into the house or sits behind a door with its own heating and cooling, because that one choice shapes the plans and how you'll use the room. Then I measure your slab or deck and work out whether it can carry the room as it is or needs work first. We take our time with the glass next, since the wrong pick can make a sunny room feel like an oven by late afternoon. Once the plans are set, our lead installer and our own installers frame the room, set the walls, glass and roof, and tie it into your house, and we tell you what's coming at each stage so you're never left wondering.
If you mostly want shade and fresh air on mild days, a three season sunroom gives you the glass and roof without the heating and cooling. And if a full room is more than you need, we also build patio enclosures that close in the space you already have.
Building a four season sunroom in Anaheim
In Anaheim, the city's Building Division reviews plans and inspects the work, with engineers and inspectors on its team, and California's Energy Code sets energy and water efficiency rules for additions, which is what a heated and cooled room is. Anaheim's zoning code treats patio structures as accessory structures, with no lot coverage or area limit except where the Building Code and the city's encroachment rules apply, but whether a closed-in room like this falls under that rule is a question for the Building Division, so ask them how your own room is classed. When anything about your lot or your room is unclear, we check with the city before we build.
Most rooms we're asked to build here go on the back of a single-story house, over a patio slab or a deck that's been there for years and facing hard afternoon sun, so the base and the glass get as much of our attention as the looks. We see the same kind of houses and yards on jobs in Fullerton and Orange, and we work across Anaheim and the cities around it.
Why us for four season sunrooms
I come out and measure myself
I look at the space, take the measurements and talk through the layout with you, and then our lead installer and our own installers build it. The person who planned your room is the one you keep talking to.
In business since 2013
I ran crew schedules for a busy company before I learned to build these rooms on site, so I plan the order of work before anything goes up. You'll know what's happening next, and why, the whole way through.
Your zone checked before sizing
Anaheim's zoning code caps how much of a single-family lot buildings can cover, so I look up your zone before we settle the room's size. That keeps us from drawing a room your lot can't take.
Licensed and fully insured
We're licensed and fully insured, and I'm glad to go over that with you when I come out. A room tied into your house is real construction, so it's worth checking before you hire anyone.
- Phone
- (657) 347-3018
- Hours
- Mon–Fri: 8 AM–9 PM, Sat–Sun: 6 AM–9 PM
- Location
- Anaheim, CA 92805
When you're ready, send us a few details or call (657) 347-3018, and have your address, your zone if you know it, a photo of your slab or deck, and whether you'd like the room open to the house.
Get a four season sunroom estimate at your home
Estimates are free, done at your house, and there's no pressure to book. We reply within one business day to set a time. Then I come out myself to look at the space, measure and talk through the layout and the glass with you.
- Phone
- (657) 347-3018
- Location
- Anaheim, CA 92805
- Hours
- Mon–Fri: 8 AM–9 PM, Sat–Sun: 6 AM–9 PM
- Credentials
- Licensed and fully insured.
Frequently asked questions
Should my sunroom in Anaheim be open to the house or closed off?
Either can work, and the choice decides how the room is classed. The national sunroom industry standard treats a room closed off from the house with its own heating and cooling as conditioned but not habitable, and a room open to the house as habitable and conditioned. Open feels like part of the house, while a door lets you run the room on its own, and the city's Building Division can tell you how your room will be classed.
Can a four season sunroom go on my existing patio slab or deck?
Usually it can, as long as the slab or deck can carry it. The national sunroom standard calls for a continuous load path on every sunroom, whether it sits on a slab or a deck at any height, so the room's loads travel all the way down to the foundation. That makes what's under the room part of the job, and I check yours when I measure.
How do I keep a sunroom from getting too hot?
Start with the glass. A study done in a hot, humid climate found that the glass's solar heat gain coefficient, a rating of how much of the sun's heat passes through, is critical for comfort, and glass with a higher rating left people feeling intense warmth. It's research from another region, so we treat it as general guidance, but it's why that rating is one of the first things we look at with you.
What energy rules apply to a new sunroom in California?
California's Energy Code covers it, as the local section above explains, and it gives two ways to meet the rules. The prescriptive path uses building methods known to be efficient, and the performance path allows more design freedom as long as the room matches the overall efficiency of an equivalent prescriptive building. We sort out which path fits once the layout and glass are set.
How much does a four season sunroom cost in Anaheim?
The price comes down to the room's size, its base, its glass, and how it's heated and cooled. A sound slab you already have keeps the base work down, while a deck that needs bracing or a new base adds to it, and more glass or higher-performing glass adds cost too. You'll get a figure for your own room after I've measured.
How long does it take to build a four season sunroom?
It turns on how quickly the layout and glass get settled, the city's review of the plans, and whether your slab or deck needs work first. The time before the build is often the part people don't plan for. Before we start, I lay out the order of work so you know what's coming next.
Other rooms we build
Three season sunrooms
A good fit if you want a bright, sheltered room for spring through fall and don't need to heat or cool it.
Patio enclosures
Worth a look if your patio already has a cover and you'd like to close it in without building a full new room.




