Three season sunrooms in Whittier CA - a closed-in patio you can use more of the year
Patio too windy, dusty or buggy to use? We close it in with glass or screens so it's a room you'll actually sit in.
Is a three season sunroom right for your Whittier patio?
A three season sunroom in Whittier is a room built over your existing patio, slab or deck, closed in with walls and glass, window or screen panels but built without insulation, so it keeps out wind, dust and bugs and stays a separate space from the rest of the house.
Most people who call us have a patio, slab or deck they'd use a lot more if it weren't so open to the weather. The price mostly comes down to the size of the room, the shape the base is in, whether you pick glass or screen panels and how much wiring you want, and the schedule usually turns on city approval and inspections more than on the building itself. If you'd rather have a room you can heat, cool and treat as part of the house, that's a four season sunroom, which is a different build at a different price. We check early whether the city or the county handles your address and take care of the permit side, and the written estimate gives you your own figure.
- Licensed and insured.
- Free quotes on site.
- We reply within 1 business day.
What a three season sunroom looks like
How we build a three season sunroom
Before anything gets drawn, I tell you straight that a three season room is a closed-in space without heating or cooling, not extra living area, because knowing that is what decides whether you'll actually use it. Then I look hard at the patio, slab or deck and at the house wall the room will meet, since those two spots are where a sunroom is won or lost. Why so fussy about the base? Because a room that sits out of level pulls the doors and panels out of line, so if the base isn't level and square, we fix it before anything goes on top. Our crew frames to the house, sets the wall and door panels, puts the roof on and seals the joint at the house wall so rain runs off instead of in. Any change either of us wants along the way goes on paper first, so we both know where things stand, and we clean up before we call it done.
Some owners find they don't need a full room at all, just the patio they already have closed in, and that's our patio enclosures work. If your house calls for an odd footprint, a taller roof line or a room that closely matches the house, we plan it as one of our custom sunrooms instead.
Why Whittier homeowners call us for three season sunrooms
I measure and quote it myself
I'm the one who comes out, measures the patio, slab or deck and walks you through the room types before anyone signs. You hear the plan from the person who'll lead the build, not from someone handing it off.
Building in Whittier since 2021
I learned under an old-school builder who made me tear out anything that wasn't level and square, and I started this business in Whittier in 2021. Five years in, our crew still works that way, because a room built out of square is a room that leaks and sticks.
Licensed and insured on your job
We're licensed and insured, and I'll go over both with you at the visit, well before there's anything to sign. You should know who's covering the work on your house before the first panel goes up.
We meet the inspector each time
Whittier projects usually need several inspections during the build, and we're there for each one. You don't have to take time off to stand in the yard, and we let you know how each one went.
On a three season room, the parts that count most are the ones you'll never look at again, the base and the joint at the house wall. Call (562) 203-1022 or send us a note about your patio, and I'll come take a look.
Get a written estimate for your three season room
Send the form and we'll reply within one business day to set up a free on-site visit. I'll measure, talk it through with you and send a written estimate, with no pressure to book.
- Licensed and insured.
- Free quotes on site.
- We reply within 1 business day.
What happens after you call about a three season sunroom?
Call or send the form
Call (562) 203-1022 or use the form, and have your address, what you're building on and a rough size in square feet handy. We'll set a time for me to come out.
I come out and measure
I look at the patio, slab or deck and the wall the room will join, and we talk about how you plan to use the space. You then get a written estimate to look over at home, with what's included spelled out so you can compare it line by line.
We handle approval and permits
We find out whether the city or the county handles your address, then take care of the approval and permit paperwork and keep you posted. Building can't start until those are in hand, so this step usually sets the start date.
Our crew builds the room
Our own small crew builds it from start to finish, and I'm on site leading the work. You deal with the same faces from the first day to the last.
Three season sunroom questions
How much does a three season sunroom cost near Whittier?
A three season room built onto an existing patio, deck or slab in Norwalk, CA usually costs about $110 to $160 per square foot, labor included. That covers standard materials and basic electrical wiring, but it leaves out insulation, heating and cooling, plumbing and construction permits, which add to the total. The written estimate from your visit gives your own figure.
Do I need city approval before building a sunroom in Whittier?
Yes. Whittier requires approval from the city's Planning Services before it issues building permits for any new construction or change to an existing building or structure. If your home sits in unincorporated LA County instead of the city, LA County Public Works issues the permit, and outside the county's jurisdiction another office may handle it.
How much deposit can a contractor ask for on a sunroom in California?
California limits the down payment on a home improvement job to $1,000 or 10 percent of the contract price, whichever is less. There's no exception for special-order materials, so the limit holds even when the room's parts are made to order. The state also requires a written contract for home improvement work over $500, and the contract and any changes to it must be in writing and tell you about your right to cancel.
Is a three season sunroom heated or cooled?
No, a three season room has no heating or cooling. One window maker's guide describes it as unconditioned, not meant to be lived in and kept thermally separate from the main house, with walls that aren't insulated. Plan it as a closed-in spot for mild days and evenings, not as an extra bedroom or office.
How do I check if my Whittier home is in a fire hazard zone?
Look your address up on the city's fire severity zone map, which shows the state's updated map of how likely wildfire is over the next 30 to 50 years. It doesn't show current fire conditions, but it may affect insurance, building codes and defensible space rules going forward. If you're in a High Fire Severity Zone, an addition may also need a fire flow form, which covers water supply for firefighting.
How long does it take to get a three season sunroom approved and built in Whittier?
Most of the wait usually comes before building starts, while the city reviews the project. Depending on the location, use, size and type, that review may stay with city staff or go to the Historic Resources Commission, the Planning Commission or the Design Review Board, and the inspections during the build add a few more stops along the way.
Work that goes with a three season sunroom
Patio enclosures
If you mostly want shelter and fewer bugs on the patio you already have, an enclosure can get you there with a lighter build.
Custom sunrooms
When a standard layout won't fit the yard or the roof line, a custom room gets drawn around your house instead of the other way around.