Four season sunrooms in Bloomington CA - a comfortable room you can use all year
Your patio sits empty half the year because it's too hot or too cold. We build a heated and cooled room you'll actually use.
What is a four season sunroom, and is it the right room for you?
Four season sunrooms are rooms added to your house with their own heating and cooling, a door to the main house, and walls and glass built to higher energy-efficiency standards, so you can use one in Bloomington, CA all year instead of just on mild days.
Most people who call us have a patio slab or a deck that's too hot by afternoon and too cool at night, or an old sunroom they've quit using, and they want a real room out of it. The price moves with the room's size, whether it needs a new foundation, how much glass goes overhead and how it's heated and cooled, and the schedule mostly turns on settling those choices and getting plans approved before we build. San Bernardino County requires a permit to add a room, and we take care of that paperwork with whichever office covers your address. We're based in Bloomington and work in many of the cities around it, and your own figure comes from the estimate I write up after seeing the spot.
- Licensed and fully insured.
- Free estimates at your property.
- We reply within 1 business day.
Four season sunroom ideas
How we build a four season sunroom
Before anything gets built, I talk through with you whether the room keeps a door to the house or opens up to it, and how much glass goes overhead, because both change how it's built and how warm it gets. From there our crew gets the foundation ready, frames the walls and roof, and sets the windows, and we put insulation into the walls, floor and roof while they're open, since adding it later is a lot harder and often costs more. California's Energy Code sets efficiency rules for additions, so the glass and insulation you pick have to meet them, and we settle those with you up front. Then the wiring and the heating and cooling go in, we finish the inside, and we clean up when we're done.
Not everyone needs a full four season room, and I'll say so if that's you. If you mostly want shelter and light for spring and fall, one of our three season sunrooms skips the heating and cooling, and if you'd rather close in the patio you already have, patio enclosures do that with less building.
Why Bloomington homeowners call Brightspan Bloomington Sunrooms & Patios for a four season room
Our own crew, checked as it goes
Our own crew does the building, and I check the work at each stage instead of handing it off. That way the person who answered your questions at the start is the one making sure it got built that way.
Building sunrooms here since 2017
I ran another sunroom builder's jobs for years before starting this business in Bloomington in 2017. That's where I learned the questions you settle at the start save the most trouble later.
Licensed in California, fully insured
We're licensed and fully insured. California's licensing law treats a builder whose main work takes two or more unrelated trades as a general building contractor, and a four season room takes framing, glass, wiring and heating and cooling, so it's fair to ask any builder about their license.
Your property lines checked early
The county requires every setback, the distance a building keeps from your property lines, to be kept whether a permit is needed or not. I look at where the room would sit on your lot early, so it isn't planned too close to a line.
What matters most here is getting the door, the glass and the insulation right before anything goes up. Call (909) 275-7071 or send us a message with the room's rough size, where it would sit on your lot and whether it'll open to the house. Satisfaction guaranteed on every job.
Get a free 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, look at the spot and write up a free estimate at your home, with no obligation.
- Licensed and fully insured.
- Free estimates at your property.
- We reply within 1 business day.
What happens after you call about a four season sunroom?
Call or send a message
Reach us by phone or through the form and tell us roughly how big a room you're picturing and where it would go. We'll find a time for me to come out.
I look at your site
I check the slab or deck and where the room would join the house, and we talk through how you want to use the space. Then I write up an estimate for the room we talked about, so you see the price before you decide anything.
We handle plans and permits
Once you're ready, we check whether the county or your city handles your address and take care of the permit paperwork. The county reviews and approves plans, including the heating and cooling calculations, before construction starts.
Our crew builds the room
Our crew builds it while I keep an eye on each stage. When it's done, we walk through the finished room with you.
Four season sunroom questions
How much does a four season sunroom cost near Bloomington, CA?
A sunroom in the Riverside area usually costs about $20,000 to $120,000 per project, which is what the local market runs, not our price. Larger rooms that need a foundation and have heating and air conditioning fall toward the higher end, and a four season room always has its own heating and cooling. Your own figure comes from the estimate after I've seen your site.
Does San Bernardino County require a permit to add a sunroom?
Yes, the county requires permits to add onto an existing building, such as a room addition, and for electrical, heating and air conditioning work. Whether the county or your city handles your address is something we confirm before work starts.
Should my sunroom open to the house or keep a door?
Keeping a door is usually the simpler build, and it's what makes a room a true four season sunroom. One architect's guide, written for another part of the country, says a room open to the main house has to meet the same codes as a family room addition, so the choice decides which energy and structural codes the room follows. If you want one big open space it can be worth it, and I'll go over both sides with you.
How do I keep a sunroom from getting too hot in Bloomington?
Put most of the glass in the walls rather than overhead, because overhead glass is what usually overheats a sunroom. Trade group guidance says upright glass also costs less and makes overheating easier to prevent, so cutting back on roof glass helps with both the heat and the price. The insulation we put in during the build does the rest.
Does a sunroom contractor need a license in California?
Yes, for a job this size. The state's small-job exemption only covers work under $500 in total, labor and materials included, and it doesn't cover minor work that's part of a larger project.
How do I find out who will be working on my sunroom?
Ask your contractor to disclose any subcontractors, which California now lets homeowners do on home improvement contracts. The disclosure gives each one's name, contact information, license number and classification, and the main contractor stays responsible for the project. On our jobs, our own crew does the building.
Other options besides a four season sunroom
Three season sunrooms
If you'll use the room mostly in spring and fall, this gives you the glass and shelter without a heating and cooling system to run.
Patio enclosures
When your patio and its cover are already in good shape, closing them in gets you an outdoor room without starting from the ground up.