Four season sunrooms in Irvine CA - a room that stays comfortable all year
Patio too hot by August and too chilly by November? We build heated and cooled sunrooms you can use every month of the year.
What is a four season sunroom, and is it right for your Irvine home?
A four season sunroom in Irvine is a fully enclosed room built onto your house that you heat and cool like the rest of your home, so it's usable on a hot August afternoon or a cool January night. At Daylight Irvine Sunrooms & Patios, it's the room we plan when you want space you'll use all year, not just on mild days.
Most people who call me have a patio that's too hot by mid-afternoon or an old enclosed porch nobody sits in once it cools off, and they want that space to work like a real room. If you're starting from a slab that's already there, a patio-to-sunroom conversion is often how it begins. The price mostly moves with what the room sits on and whether it needs a new foundation, which windows you choose and how you heat and cool it, and the schedule turns on how soon we settle those choices and get through the city's permit steps. Your own figure comes from the written estimate I put together after seeing the space.
What our four season sunroom work includes
A room you heat and cool is only as comfortable as its insulation and windows, so we settle those in the first plan instead of patching them in later, when it's harder and usually costs more. That first plan covers what the room sits on, how the roof and walls tie into your house, the windows, the insulation in the walls, floor and roof, and how you'll heat and cool the space. Then our crew prepares the base, frames and roofs the room, sets the windows, insulates, finishes the inside and cleans up the yard before we call it done.
If you mostly want a bright place to sit on mild days, a three season sunroom skips the heating and cooling and costs less to build. Patio enclosures close in a covered patio you already have, and some owners start there, though heating that space later usually takes more work than building it in from the start.
Four season sunrooms and Irvine's permit and fire rules
Whether your room needs a permit, and which kind, is the City of Irvine's call, and new online applications for permits that don't need plans reviewed now go through the city's PermitsDIRECT! system. We take care of the permit steps with the city when a project calls for them, so you're not learning a new system to get your room built. What changes more jobs here is the city's updated fire hazard severity zone map, which now reaches into Orchard Hills, Woodbury, Portola Springs, Quail Hill, Turtle Rock, Laguna Altura, Los Olivos and Irvine Spectrum, because new construction or a major renovation in a mapped zone has to meet building and fire code requirements.
Most Irvine homes we work on are stucco with tile roofs and a concrete patio out back, so a big part of the job is tying the new roof cleanly into the old one and finding out whether that slab can carry a room or needs a proper foundation. We see the same kind of houses on jobs in Tustin and Costa Mesa, and we work across Orange County, in the cities on this site and plenty of others around them.
How a four season sunroom gets built
Call or send the form
Call (949) 543-1630 or use the form, and we'll set a time for me to come see the space. It helps to tell us whether you're starting from a patio, a deck or an older sunroom.
I look at your space
I come out myself to look at the spot, what the room will sit on and how it'll tie into the house, and I walk you through the options right there. That's the time to ask about heated against unheated, open to the house or closed off, and anything else you're weighing.
Read your written estimate
Your estimate spells out the room type, windows and insulation we talked about, in plain words. You can see exactly what you're paying for before you sign anything.
Our crew builds the room
Our own crew does the build, and I check in along the way to make sure it matches what we agreed on. When it's finished, I walk the room with you.
Get a written estimate for your four season sunroom
We reply within one business day to set a time for me to come out to your property. The estimate is free, written in plain words, and there's no pressure to book.
Questions before you build a four season sunroom
What is the difference between a three season and a four season sunroom?
A four season room is heated and cooled and has all-weather windows, while a three season room or enclosed patio generally isn't heated or cooled and has uninsulated windows or screens. That's why a three season room feels fine in spring and fall but can get uncomfortable on the hottest and coldest days.
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. Larger rooms that need a foundation and have heating and air conditioning fall at the higher end of that range. Your written estimate gives you the figure for your own room.
Should a four season sunroom be open to the house or closed off?
It depends on how you'll use it, because industry sunroom guidance treats a heated or cooled room that's open to the house as habitable and a closed-off room with its own separate temperature control as non-habitable. That choice decides how the room is classed and how it's heated, so I ask what the room is for before we pick a layout.
What is the best way to heat a new sunroom addition in California?
The California Energy Commission says new or replacement heating systems that serve additions must be heat pumps. State energy guidance also counts space converted from unheated to heated or cooled space as newly conditioned space, so a patio you turn into a heated room is treated as new heated space. We build the heat pump into the first plan so it isn't a surprise later.
How do I keep a sunroom from overheating in the Irvine sun?
Glass made to let in plenty of daylight while blocking more of the sun's infrared heat helps keep a glass room from overheating, and it also cuts the heat the room loses to the outside. Industry guidance sets air leakage, water leakage and thermal performance requirements for the windows in a heated or cooled sunroom, and you're welcome to ask me how the windows in your estimate meet them.
Does Irvine's 2025 fire hazard map affect my sunroom project?
It can, if your home is in one of the zones on the city's updated map, which rates them Moderate, High or Very High. Projects with permit applications after July 23, 2025 follow the new map, while those submitted before that stay under the older 2012 map areas. You can look up your address on the city's fire hazard severity zone map before we meet.
Why Irvine homeowners call Daylight Irvine Sunrooms & Patios for four season rooms
The owner writes your estimate
I come out myself to see your space and put the estimate together, so the person explaining your options is the one who knows the job. You won't hear one plan from a salesperson and a different one from the crew.
In business since 2017
We've been in business since 2017, and I spent summers on patio and sunroom crews from high school on before I ever ran a job. I'd rather take an extra half hour explaining a heated room against an unheated one than have you surprised once the glass is in.
Licensed and fully insured
Daylight Irvine Sunrooms & Patios is licensed and fully insured. A four season room ties into your roof, walls and heating, so you want the people working on your house properly covered.
Fire zone checked at first visit
Because the city's fire map now covers more Irvine neighborhoods, I look up your address before we talk about materials. That way the room you approve is planned around the rules your lot falls under instead of redrawn later.
Your satisfaction, guaranteed. Call (949) 543-1630 or tell us about the room you want, and I'll come out to talk it through at your place.
Other rooms we build in Irvine
Three season sunrooms
A good fit when you want a bright room for mild days and evenings and don't need to pay for heating and cooling.
Patio enclosures
For a covered patio you already have, when you'd like walls and windows to keep out wind, dust and bugs.
Plan your four season sunroom with us
Call Daylight Irvine Sunrooms & Patios at (949) 543-1630 or use the form with a rough room size, whether it'll open to the house and your address, so I can check the fire zone map and come to the first visit with the right questions.
