Three season sunrooms in Highland CA - an enclosed room that fits how you use it
Your back patio sits empty more than you'd like. We close it in with windows or screens so it becomes a room you actually use.
Is a three season sunroom the right room for your Highland house?
A three season sunroom in Highland, CA closes in a porch or patio with uninsulated windows or screens, so you get an enclosed room off the back of the house without heating or cooling it.
Most people who call Horizon Highland Sunrooms & Patios want more usable space out back and are weighing a few options. A four season room is fully enclosed, heated and cooled and has all-weather windows. A screened porch has screens only, with no windows and no temperature control. A three season room sits between them, so it suits you if you want an enclosed room but don't need to heat or cool it. The price mostly turns on the room's size, whether it can sit on an existing slab or needs a new foundation, and whether you add insulation, wiring or plumbing. The schedule mostly turns on the plans and the permit review, and your estimate lays out both for your room. We're licensed and fully insured, based in Highland, and we build in many of the cities and unincorporated areas around it.
What happens after you call about a three season room?
Call or send a message
Call (909) 737-1119 or use the form. We'll set a time for me to come out to your house.
I look over your house
I look at the house, the base the room would sit on and how you plan to use the room. 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.
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. The schedule mostly waits on that review, so we start it first.
Our crew builds, then we walk
Our own crew builds the room, and licensed trade partners come in if it needs wiring. At the end we walk the room with you and show you how the windows, screens and doors work.
How we build a three season sunroom
Every job starts at the base. What the room sits on and how it joins the house are the parts you can't see later, and they decide whether the room holds up. I look at the slab or deck, the roofline and the wall the room will tie into. When something's awkward, like an old deck or a low roof, I'd rather spend the time working it out than cover it up. Then we lay out the room. The local building code requires every sunroom to keep the emergency escape openings the house needs, so we place the walls, windows and doors to keep a bedroom window onto the patio usable as a way out. Before we build, we ask whether you might want to warm the room up someday, because that changes the windows and walls we'd pick. Then our crew frames the room, sets the windows or screens and the doors, and cleans up when it's done.
Some homeowners don't need a full room. If you mainly want to close in the sides under a roof you already have, patio enclosures may be the better fit. If your house needs an odd shape, a different roof pitch or a room sized around one tricky spot, we build custom sunrooms for that.
Get an estimate for your three season room
We reply within one business day to set a time, and then I come out to measure and look over your house and the base. The estimate is free and done on site, and you're under no obligation to go ahead.
Three season sunroom questions in Highland
How much does a three season sunroom cost in Highland, CA?
In the San Bernardino area, a three season room added to an existing structural base usually costs about $95 to $140 per square foot, labor included. That figure doesn't include insulation, extending heating or cooling, plumbing or pulling permits, and a larger room that needs a new foundation costs more. Your estimate lists what your room includes, and our work is backed by our satisfaction guarantee.
Do I need a permit for a three season sunroom in Highland?
Ask Highland Building & Safety about your room's permit path. The office issues permits for most code-regulated construction or repair, and its list names additions, decks and renovations but not three season sunrooms. The city has standard handouts and code guidelines for getting approvals, but some designs go past them and need engineering from a design professional. If your address is in a State Responsibility Area or a Fire Hazard Severity Zone, the state fire marshal's office says the same wildfire building and defensible space rules apply, with limited exceptions. We check with the office that covers your address and file the plans and permit paperwork when your job calls for it.
Can I heat or cool a three season room later?
You can, but insulated windows and insulation in the walls, floor and roof are much easier to put in while the room is being built. Adding them later can often cost more. Under the sunroom specification, a room built to be heated or cooled and open to the main house counts as a habitable room, so its windows and doors have to meet requirements for drafts, water getting in and how well they hold heat. If heat is a real maybe, it belongs in the first design.
How do I take care of sunroom windows and doors?
Keep the door and window tracks clean, and keep the weep holes clear so water can drain out. Weep holes are the small drain slots at the bottom of the frames. One maker's guide says to use pure silicone spray on the tracks rather than an oil-based lubricant, because oil tends to attract dirt.
What license does a sunroom contractor need in California?
A residential remodeling license isn't enough for a sunroom that ties into your house's footings, foundation, load bearing walls or roof. State licensing rules bar that kind of contractor from making structural changes to those parts of an existing structure. Ask anyone you're considering which license they hold. We're licensed and fully insured.
How do I know if my patio slab can hold a sunroom?
We check the slab on the estimate visit, looking at its condition and at how it would carry the room and meet the house. If anything needs cutting, we first find out whether it's a post-tension slab, which has steel cables pulled tight inside it. Cutting one of those cables can be dangerous and expensive to repair.
Other work that pairs with a three season room
Patio enclosures
If your patio already has a roof over it, an enclosure closes in the sides so you get more use from the space you have.
Custom sunrooms
When a standard room won't fit your lot or your roofline, we design a custom sunroom around your house.
Start planning your three season room
Call (909) 737-1119 or use the form, and tell us the room's rough size, whether it would sit on an existing slab and whether you might heat it later, so I can come out ready with the right questions.