Four season sunrooms in Tustin CA - a heated, cooled room sized to fit your house
Patio or tired old sunroom barely getting used? We build an enclosed, heated and cooled room sized to your house and checked at every stage.
Is a four season sunroom right for your Tustin home?
A four season sunroom is a fully enclosed room with all weather windows that's heated and cooled. Here in Tustin we build them so you get a room you use like the rest of your house, rather than a covered patio.
Three season rooms and enclosed patios usually aren't heated or cooled, and they have uninsulated windows or screens, so if you want a room you can sit in comfortably with the doors shut, a four season room is the one you're choosing. The price moves mostly with the size of the room, whether it needs a new foundation or can sit on the slab or deck you have, and the heating and cooling you put in. The schedule turns less on the build than on approvals, because a sunroom in Tustin needs a building permit, and we draw the plans and handle that with the city, or with the county if your address is unincorporated. Once I've measured, you get your own figure in a written estimate.
- Fully licensed and insured.
- Free on-site estimates.
- We respond within 1 business day.
Four season sunrooms, inside and out
How we plan and build a four season sunroom
On a four season room I look hard at which walls face the sun, because where the glass goes shapes how comfortable the room is, so we work out the window layout and shading with you while the design can still change. Department of Energy guidance for cooling climates favors north-facing windows and generously shaded south-facing ones, and shade from overhangs, landscaping, shutters or solar window screens cuts heat gain on glass that takes full sun. We settle insulated windows, walls, floor and roof in that same first design, because they're much easier to put in during the build, and adding them later can often cost more. Then our crew gets the base ready, frames the room to the drawings, sets the glass, insulates and closes it in, and the heating and cooling you chose goes in before the finish work.
Not everyone needs a heated, cooled room once we talk through how they'll actually use it. If you mostly want an enclosed spot to sit and you don't plan to heat or cool it, our three season sunrooms cost less to build, and patio enclosures close in the covered patio you already have.
Why homeowners in Tustin choose us for four season rooms
I measure and check each stage
I come out myself to look at the space and take the measurements, whether you're inside Tustin city limits or in an unincorporated area like North Tustin, and our crew builds while I check the work at each stage. That way the person who measured your patio is the one making sure the room fits it.
In business since 2017
I learned the trade on a municipal crew, where every job was built to the drawings and checked by an inspector at each stage, and I started this business in 2017 to work the same way. Nine years on, we're best known for careful measuring and for rooms that fit the patio, deck or slab you already have.
Fully licensed and insured in California
We're fully licensed and insured, and the Contractors State License Board is the state office that licenses and regulates California's construction industry to protect homeowners. Ask any sunroom contractor for their license before you sign, us included.
On a four season room, the measurements and the glass decide how the room lives, so tell us about your space or call (657) 356-0049 and I'll come take a look.
Get a written estimate for your four season room
Send the form and we'll reply within one business day to set a time. I'll come out, measure the space and check what the room will sit on, then give you a free written estimate with no obligation.
- Fully licensed and insured.
- Free on-site estimates.
- We respond within 1 business day.
What happens after you call about a four season sunroom?
Call or send the form
Call (657) 356-0049 or use the form, and we'll set a time for me to come see the space. It helps to have your address, a rough room size, whether you want heating and cooling, and your HOA contact if you have one.
I measure and write it up
I measure the space and look at what the room will sit on, then you get the estimate in writing. That gives you a figure for the room we actually talked through, so you can weigh it before deciding anything.
We draw plans and file
Once you're ready, we draw up the plans and handle the permit with the city or the county, whichever covers your address. The city says a first plan check should take about 10 working days, with resubmittals back within five, though projects that need special zoning or Planning Commission approval fall outside that estimate.
We build, inspect, walk through
Our crew builds to the plans, and the city's inspections run from foundation and frame through roof sheathing, insulation, drywall and a final check, with us on site for each one. At the end I walk through the finished room with you.
Four season sunroom questions
How much does a four season sunroom cost in Orange County?
A sunroom in Orange County usually costs about $17,000 to $120,000 per project, going by a countywide guide that covers sunrooms in general, not just four season rooms. Larger rooms that need a foundation and have heating and air conditioning sit toward the top of that range, and every four season room is heated and cooled, so size and the foundation decide most of where yours falls. Your written estimate gives you the figure for your own space.
Does a sunroom in Tustin need a building permit?
Yes, the City of Tustin requires a building permit for any construction, alteration or repair of a structure, and its exceptions cover unroofed patio slabs, not sunrooms. If your address is in an unincorporated part of the county, like North Tustin, OC Development Services handles permits, inspections and zoning instead. Either way, we prepare the plans and handle the paperwork with whichever office covers you.
What causes delays getting a sunroom approved in Tustin?
The steps that can add time are zoning and outside approvals, because the city's Planning Division sets setback and lot coverage rules for each neighborhood, and Design Review or a public hearing may be required before a permit is issued. Some projects also need clearance from Tustin Unified School District and approval from the homeowners association, so it pays to reach your HOA early.
How much can a contractor ask for up front on a sunroom in California?
Under the state license board's rules, the down payment on a home improvement contract can be no more than $1,000 or 10 percent of the total contract price, whichever is less. Every payment after that has to be listed clearly in the contract and based on work already done or materials delivered to your home. If a contract asks for more at signing, ask why before you sign it.
How do I know if my sunroom plans need an engineer's stamp in Tustin?
The city requires a state licensed architect or engineer to sign and stamp all sheets for any project that isn't a conventionally designed one story addition. It's worth asking early because it affects how the plans get drawn, and we'll flag it while we're drawing yours.
Can a four season sunroom be built on my existing patio slab?
Often it can, once I've checked that the slab is level, sound and able to carry the walls and roof. If it isn't, the room needs a new foundation, which adds to the price, and I'll tell you what I find when I come out to measure.
Other options besides a four season sunroom
Three season sunrooms
A lighter, lower-cost room for when you want the space enclosed but don't plan to heat or cool it.
Patio enclosures
Closes in the patio cover you already have, which can be the simplest way to gain a sheltered room.