A patio you hardly use
Most of our calls start here. Closing in a slab you walk past every day gives you a room with heating, cooling and all weather windows that you'll actually sit in.
All season rooms in Mission Viejo CA - a heated, cooled room you'll use all year
Patio or deck sitting empty most of the year? We turn it into a heated, cooled room with all weather windows.
- Licensed and insured.
- Free quotes on site.
- We respond within 1 business day.
What an all season room gets you
An all season room in Mission Viejo, CA is a fully enclosed room with all weather windows, heated and cooled so you can use it on the hottest and coldest days of the year, not just the mild ones.
Most people who call us have a patio or deck they hardly use and want a room they'll actually sit in. The first decision is whether you need it heated and cooled at all, and I'll tell you straight if a three season room would serve you just as well.
The price moves mostly with the size of the room, whether it needs a new foundation or a deck that has to be strengthened, the heating and cooling, and how much insulation you put in. The schedule turns on the shape your slab or deck is in and on the city's permit and inspections, which we file and book for you as a licensed and insured contractor. After I measure and look over the base, we send a written estimate with your own figure.
I come out to every job
I look at every yard myself, and our own crew builds the room, so the person who planned it and the people building it are working from the same notes.
The base gets checked first
A sunroom is only as good as the slab or deck under it. I'd rather tell you up front that the base needs work than find out after the walls go up.
Sized for how you'll use it
We'd rather build the room you'll sit in every week than the biggest one we could sell you, because extra square footage adds cost and more space to heat and cool.
How we build an all season room
Early on, we decide with you whether the room opens into the house or stays closed off with its own heating and cooling. I don't let that choice wait, because it changes a lot of the energy work that follows.
Next we look hard at what the room will sit on, and any slab or deck repair goes into the plan before anything is framed. Highly insulated windows and insulation in the walls, floor and roof make the room cheaper to run, and they're much easier to put in while we build, so we settle them in the first plan instead of adding them later at more cost.
If you don't need full heating and cooling, one of our enclosed patio rooms may suit you better and cost less. If you want more glass and light overhead, ask me about solarium installation when I'm out, and we'll compare the two for your house.
Where an all season room makes sense
Closing in an existing deck
A sound deck can become the floor of a year-round room. I check it on the first visit so any strengthening is part of the plan from the start, not a surprise.
Extra living space off the house
When the room opens straight into the house, it works as part of your living space for meals, homework or guests, and it feels like part of the home, not a porch.
A separate room behind a door
Some owners want a closed-off office, studio or reading room. It gets its own heating and cooling, so you only run it when you're in there and the house stays as it is.
Get a written estimate for your room
Send the form and we'll reply within one business day to set a time. I come out, measure, look over your slab or deck and talk through room types, then we send a written estimate, free and with no obligation.
How big you want it
Give us a rough size, even just the patio's footprint. Size is one of the biggest things that moves the price, so it helps me come ready to talk about what fits.
Whether it sits on a deck
Tell us if the room would go on a deck or a slab. A deck often needs strengthening for the added weight, so I'll want to look underneath when I'm out.
Heated and cooled or not
Let us know if you want it heated and cooled, or if a three season room might do. That choice changes the windows, insulation and price, so it's worth flagging early.
Sunroom and patio room examples
Examples of enclosed rooms, window layouts, roof styles and finishes to look through before we talk about what fits your house.
Questions about all season rooms in Mission Viejo
Straight answers on cost, permits, decks, soil and what sets an all season room apart from a three season room.
How much does an all season room cost in Orange County?
A sunroom in Orange County usually costs about $120 to $200 per square foot. Larger rooms that need a foundation and have heating and air conditioning sit at the higher end of that range. Your written estimate gives your own figure for the size, base and windows you choose.
What's the difference between an all season room and a three season room?
An all season room is fully enclosed, heated and cooled, with all weather windows. A three season room, like most enclosed porches and patios, isn't heated or cooled and has uninsulated windows or screens. If you want to use the room on the hottest and coldest days, go all season. If it's mostly for mild evenings, three season can be enough.
Can you build an all season room on my existing deck?
It can work, but national sunroom guidance says a room on an existing deck will typically need added beams, posts or footings to carry the extra weight. A local structural engineer can tell you whether your deck is suitable, so plan on that check and any upgrade. I look under the deck on the first visit and tell you plainly what I see.
How do permits and inspections work for a sunroom in Mission Viejo?
Mission Viejo takes all permit applications and inspection requests online through the city's building services portal. We file the permit and book the inspections, and we let you know early if the city needs anything from you. Inspections happen the next business day when the request is in before 4:00 PM, and I'll show you where they fall in your build.
Does an all season room need its own heating and cooling?
Not always. Under the national energy code, as the sunroom trade group explains it, a room with its own heating or cooling that keeps the house's existing doors and windows follows special rules. A room left open to the house follows the same rules as any other addition. Either layout works, but they're planned differently from the start.
Does Mission Viejo soil affect a sunroom foundation?
It can. The city notes that expansive soils, the kind that swell and shrink with moisture, are common in Mission Viejo, and so are high sulfate levels, which set terms for concrete touching the soil. Fire hazard zones in the city also changed with new maps, so I check your lot. We're based here and work across the Orange County cities around it.
Other rooms to compare with an all season room
Find out which room fits your yard
Call (949) 619-8191 or send the form, and on the first visit I'll tell you whether an all season or three season room makes sense.