Four season sunrooms in West Covina CA - a room that feels like part of the house
Your patio sits empty because it's too hot by afternoon and chilly after dark. We build an insulated room you'll use every month.
What is a four season sunroom, and is it right for your house?
A four season sunroom in West Covina is an insulated room with heating and cooling that we add to your house and connect to the rest of it, so you can use it on hot summer afternoons and cool winter evenings, not just on mild days.
Most of our calls come from homeowners around here with a patio or deck they hardly use, and they want a room they'll actually sit in every day. The price moves with the size of the room, the glass and wall materials, and the foundation, depending on whether we can build on what you have or need to pour new. The schedule usually turns on the city's permit review when your room needs one, and on whether foundation work has to come first. I'll walk your yard at the estimate and give you your own number.
How we build a four season sunroom
A room you use all year should feel like part of the house, so we match the glass and insulation to how much sun that side of your home takes. I start by looking at the wall and roofline the room will tie into and at the patio, deck or ground it will sit on, because that's where the hard decisions are. Then we settle the foundation, frame the walls and roof, seal the joint where the new roof meets the old one, set the glass and insulation, and connect the heating and cooling before we finish the inside and clean up. The sun matters more here than near the coast, since a firm that writes energy reports places West Covina in California Climate Zone 9, a warm inland climate with higher cooling demand, and names how much sun heat the windows let in and insulation as critical factors for meeting the energy rules. California's Energy Code sets standards for a building's shell and its windows and doors by climate zone, so your glass and insulation may have to follow the rules for where your house sits.
Not every patio needs a full four season room. If you mostly want a bright spot for spring and fall, three season sunrooms skip the heating and cooling, and patio enclosures close in the space you already have. I'll tell you which one fits how you'll use it, even when it's the smaller job.
Why West Covina homeowners call West Covina Sunrooms & Patios for four season rooms
I come out to your house
We're based in West Covina and work in the cities around it, and I'm the one who comes out to look at your job. Our small crew does the build with me on site, so the person who planned your room is there when it goes up.
The license California requires
We're licensed and fully insured. The California Contractors State License Board requires a license for anyone who builds or alters a building in the state when the job needs a permit, uses other workers or comes to $1,000 or more in labor and materials, and a four season room is well past that dollar line.
Careful where room meets house
Leaks and drafts usually start where a new roof and wall tie into the old house, so that's where I spend the most time looking and building. I started this business in West Covina in 2023 because I like that puzzle, and odd rooflines, older patios and tired decks are the jobs we're best known for.
Sized to West Covina's rules
In single-family zones, West Covina limits how much floor area and building coverage a lot can carry, and that sets how big a sunroom added to the house can be. I'd rather find that out before we draw anything than have you settle on a size the city won't allow.
Before anything else, I want to see the wall your new room will tie into. Send us your project or call (626) 412-8694, and we'll set up a time to come out.
Get a four season sunroom estimate for your house
Send photos of your patio or deck, a rough room size and whether you want the room open to the house. We reply within one business day to set up a visit, and I come out to look at the job myself. The estimate is free, done on site and comes with no pressure and no obligation.
A look at four season rooms
Questions before you book a four season sunroom
How much does a four season sunroom cost in West Covina?
Adding a four season sunroom usually costs about $20,000 to $80,000 per job across the US, and that's a national figure, not our price. Where yours lands depends mostly on the size, the materials and the foundation, so I'll give you your own number once I've seen the site.
Can a sunroom sit on my existing patio or deck?
Sometimes, if it's level and can carry the load. Prefab sunroom kits can attach to an existing wood deck or patio with a level surface, while a site-built room needs a proper building foundation. Either way, the industry sunroom spec calls for a continuous load path, a connected path that carries the room's forces down to the foundation, so I check your slab or deck framing before we plan on reusing it.
Who handles building permits for a sunroom in West Covina?
The city's Building Section issues permits for private projects in West Covina, through its online permit center portal. When your sunroom needs a permit, we take care of the paperwork and inspections with the city or county office that covers your address.
How close to my back property line can I build a sunroom in West Covina?
In the R-1 and R-A zones, the city's residential zoning summary lets structures up to 15 feet tall sit 5 feet from the rear property line, and 60 percent of the required rear yard has to stay open. The summary points owners to a city planner for details on their own lot, and that's worth a call before we settle on a size.
What is the best way to decide if my sunroom should open to the house?
Decide by how you'll use the room day to day. The industry sunroom spec describes two heated or cooled designs, one open to the main house that counts as habitable living space, and one closed off with its own temperature control that counts as non-habitable. Open makes it part of the house, closed keeps it a separate space with its own heating and cooling, and we'll talk through which fits at the visit.
How do I take care of a sunroom roof?
Check the seams and keep the drainage clear. One sunroom roof company advises inspecting the roof seams twice a year and after major storms, and keeping drainage open so water doesn't pool on the roof.
Other ways to use your patio
- Three season sunrooms
A good fit if you want a bright room for the mild months and don't need it heated or cooled.
- Patio enclosures
For closing in the patio you already have so you can use it more without a full room addition.