Sunroom additions in North Tustin CA - a room built the way it was planned
Your patio sits empty most of the day and the house feels a room short. We plan and build a sunroom you'll actually use.

What goes into a sunroom addition in North Tustin, and what sets the price?
A sunroom addition in North Tustin is a new room built onto your house, mostly glass, made either for spring through fall or for every month of the year, so you get real living space that lets the yard's light in.
Most people who call us have a patio, deck or side yard they rarely use and want a room there instead. The price mostly comes down to size, whether the room is built for every season with insulated glass and its own heating and cooling, and what it sits on, because a new foundation or a deck that needs strengthening costs more than tying into a sound slab. If you're starting from a deck, our deck-to-sunroom conversion page goes into that. The schedule turns mostly on the permit review and on ordering the windows and roof panels, and we look up which office reviews your address and handle the permit applications and inspections for our work. After I measure, you get a written scope that lists the room type, windows, roof and base, so your own figure is on paper before anything gets ordered.
What happens after you call about a sunroom addition?
Call or send a message
You call or use the form, and we get back to you to set a time for me to come out. A short note on what you're picturing helps me plan the visit.
I measure and ask questions
I come out myself, measure the space and look at the slab, deck or wall the room will tie into. I'll also ask how you plan to use the room, because that answer shapes everything after it.
You get a written estimate
I send a written estimate that spells out each piece, from the room type and windows to the roof and the base under it. Nothing gets ordered until you've read it and you're ready.
We permit, build and walk through
We handle the permit steps, then our own crew builds the room, led by an experienced installer, and I check in as it goes. When it's finished, I walk through the room with you before we call it done.
How we plan and build a sunroom addition
The first thing we settle is whether you'll want the room in every season or mostly in the warmer months, and we build the plan and pick the windows around your answer. From there we work out the base, whether that's a new foundation, an existing slab or a deck we strengthen, then our crew frames the room, sets the roof panels and windows, seals it to the house and cleans up. I'd rather steer you to a simpler room that fits how you'll really use it than sell you more than you need, and the work is backed by our satisfaction guarantee.
Most additions end up as one of two builds. A four season sunroom is the one to choose if you'll heat and cool the room all year, and a three season sunroom suits a lighter room you'll use mostly from spring through fall.
Get a written plan for your sunroom addition
Send the form and we'll reply within one business day to set a time for me to come out. The on-site estimate is free and obligation-free, and afterward you get a written scope listing the room type, windows, roof and base.
Sunroom addition questions in North Tustin
How much does a sunroom addition cost in Orange County?
A sunroom in Orange County usually costs about $17,000 to $120,000 per job, and that's the local market's range across all sizes and builds, not our price. Larger rooms that need a foundation and have their own heating and air conditioning sit toward the top of it. Your written estimate gives the figure for your room.
Do I need a permit for a sunroom addition in North Tustin?
Plan on asking, because Orange County typically issues building permits in its unincorporated areas for additions, patios and decks, though its list doesn't name sunrooms. We look up which office reviews your address and handle the applications and inspections for our work. If you'd like to ask yourself, the county's permitting office takes questions at (714) 667-8888.
What should I check before adding a sunroom in North Tustin?
Look up two county maps for your address, the North Tustin Specific Plan that Orange County lists among its community plans and the county's fire hazard severity zone map for its unincorporated areas. In a Very High fire zone, buildings have to use fire-resistive features from the California building codes, which matters for what the room is built with. We're based in North Tustin and take jobs in many of the cities around it.
What is the difference between a 3-season and a four-season sunroom?
As national guides put it, a three-season room has no insulation and often uses single-pane windows, while a four-season room adds better insulation, double- or triple-pane windows and its own heating and cooling. If you want the room in every month, the four-season build is the one made for year-round use. Either way, California's Energy Code sets energy, water and indoor air quality requirements for additions to a house.
How do I add a sunroom on top of my existing deck?
A sunroom can go on an existing deck, but the deck will typically need added beams, posts or footings to carry the new room's weight. So count strengthening the deck as part of the job from the start, not a surprise later. I look at what's under it when I come out to measure.
How do I hire a sunroom contractor in California without paying too much up front?
Under California rules, a contractor can't ask for a down payment of more than $1,000 or 10 percent of the contract price, whichever is less, and later payments have to be listed in the contract and tied to work done or materials delivered, so you can check each one against what you see built. Ask which state license class the contractor holds too, because the awning license covers patio covers but not patio enclosures, and the deck license excludes covers or enclosures of any kind. We're licensed and fully insured.
The two room types most additions come down to
Four season sunrooms
For a room you'd sit in on a cold January morning as easily as a July evening, with insulation and heating and cooling of its own.
Three season sunrooms
For a lighter, lower-cost room that covers the mild months, when you mainly want shade, light and a place out of the bugs.
Call to plan your sunroom addition
Call (657) 356-0209 or use the form, and have a rough size, how often you'll use the room and any details about an existing deck ready, so the first visit covers more ground.




