Four season sunrooms in Highland CA - a heated room that joins your house the right way
If your patio sits empty half the year because it's too hot or too cold, we'll build a room you can use every month.
What is a four season sunroom, and what goes into building one?
Four season sunrooms in Highland, CA are insulated rooms with their own temperature control that connect to the rest of your house, so you get space you can actually use through a hot August afternoon or a chilly January night. We build them in Highland and many of the cities around it.
Most people who call us have a patio or deck out back that sits unused through the hottest and coldest stretches, and they want a real room there, not just shade. The price mostly comes down to the room's size, the materials you choose and what it sits on, because an older slab or deck sometimes needs work before it can hold a full room. The schedule turns on whether you go with a prefab kit or a custom-built room, plus the time plans and permits take, and the estimate I write after seeing your house puts all of that in writing for your room.
What happens after you call about a four season room?
Call or send us a message
Call (909) 737-1119 or use the form, and we'll get back to you to set a time for me to come out. A few lines about the room you're picturing help me show up with the right questions.
I come out and look
I measure, check the house and whatever the room would sit on, and ask how you plan to use the space. Then I write up an estimate that spells out what the room includes and what it doesn't, so you can compare it line by line with any other quote.
We handle plans and paperwork
Once you say go, we prepare the plans and file the paperwork with the city or county office that covers your address. In Highland, adding onto an existing home also calls for a fire flow test report, and East Valley Water District is who provides those tests.
Our crew builds the room
Our own crew does the building, and we bring in licensed trade partners for the wiring and the heating and cooling a four season room needs. When it's done, I walk the room with you so you can see how it all comes together and ask about anything.
How we build a four season sunroom
A four season room becomes a real part of your home, so I look hardest at the two things you won't see once it's finished, how it joins the house and whether the deck or patio under it can carry the weight. Early on I'll walk you through the trade names you'll see on quotes, because they decide what you're actually buying. A Category IV room has its own heating or cooling and leaves your house's existing doors and windows in place, so it stays a closed-off room, while a Category V room is essentially a regular room addition that you can keep closed off or open to the rest of the house. Once you've picked, we shore up or rebuild the base where it needs it, frame the room, tie the roof and walls into the house, and set the insulated walls and glass before finishing the inside and cleaning up. When the roofline is low or the tie-in is awkward, I'd rather spend extra time working out that spot than cover it up and hope it holds.
Not everyone needs a room heated and cooled all year, and I'll tell you if that's you. If you mostly want the light and the view in spring and fall, a three season sunroom is usually simpler to build and still keeps dust and bugs out. If you've got a covered slab you'd just like walled in, we also do patio enclosures.
Get a written estimate for your four season room
We reply to every message within one business day to set a time for me to come out and look over your house and the spot for the room. The estimate is free, done on site and comes with no obligation.
Four season sunroom questions from Highland homeowners
How much does a four season sunroom cost in Highland, CA?
Across the US, a four season sunroom usually costs about $20,000 to $80,000 to add. That's a national range, not a Highland price, so treat it as a starting point. The figure for your house comes from the estimate, after I've measured and checked what the room would sit on.
How long does it take to build a four season sunroom?
A national cost guide puts a prefab sunroom kit at 1 to 2 weeks to build and a custom-built sunroom at 2 months or more. That choice decides whether your build runs weeks or months, so it's worth settling early. Plans, permits and any work on the base underneath come before building starts.
How much can a contractor ask for up front on a sunroom in California?
In California, a contractor on a home improvement job can't take a down payment of more than $1,000 or 10 percent of the total contract price, whichever is less. The other payments are listed in the contract and tied to work completed or materials delivered, so you pay as the job moves forward. The Contractors State License Board licenses and regulates contractors in the state, and we're licensed and fully insured.
Can a four season sunroom go on my existing deck?
Usually not as it's built today, because a deck typically needs added beams, posts or footings to carry the weight of a sunroom. The sunroom trade group suggests having a local structural engineer check whether an existing deck is suitable before the design is set. I'll tell you what I see under yours when I come out.
Do I need a permit for a four season sunroom in Highland?
It's a question for the City of Highland, because the city enforces the state building codes and its project list names room additions and turning non-habitable space into living space, not sunrooms by name. We find out what your address needs before any plans are drawn.
How do I choose the right glass for a sunroom in Highland's heat?
Lean toward glass that keeps the sun's heat out, since earlier state energy guidance says cooling climates generally benefit from a low SHGC coating, one that lets in less of the sun's heat. The city lists Highland in climate zone 10 with a ground snow load of 0, so the thing to design around here is summer sun, not snow on the roof.
Other rooms we build off the back of the house
Three season sunrooms
A good fit when you want a bright room for the mild months and don't need it heated and cooled like the rest of the house.
Patio enclosures
Walls in the covered patio you already have, so you get shelter from wind and dust without building a full addition.
Start planning your four season sunroom today
Call (909) 737-1119 or send the form with the room type you want, a rough size and whether it would sit on a deck, so I come out ready to check the right things.