Three season sunrooms in Manhattan Beach, CA - a room you'll use most of the year
If your patio sits empty because of wind or chilly evenings, we enclose it with window panels and build a room worth sitting in.
- Licensed and fully insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
What is a three-season sunroom, and is it right for your house?
A three-season sunroom is a room built onto your house with its wall openings filled with glass or plastic panels and no heating or cooling, and at Manhattan Beach Sunrooms & Patios we build them in Manhattan Beach for homeowners who want their patio sheltered without adding full living space. The industry's sunroom standard doesn't count this kind of room as living space, so think of it as a protected spot for the milder months rather than an extra bedroom.
Most people who call us have a patio or deck they hardly use, and they'd like to sit out there on a breezy evening without hauling everything back inside. The price mostly moves with the size of the room, the panels you choose, the shape of the patio, slab or deck it sits on, and any extras like more wiring. The schedule turns mostly on the permit paperwork for your address, which we sort out before anyone picks up a tool. I'd like you to understand what you're getting before you sign anything, so after I've seen the space you'll get a written estimate.
How we build a three-season sunroom
I start by asking whether you might want to heat the room someday, because that changes which windows make sense, and it's far easier to plan them now than to replace them later. If the room is going on an existing slab, we find out how that slab was built before anyone cuts into it, since some slabs are laced with tightened steel cables, and one California city's building guide warns that cutting one can be very dangerous and expensive to repair. Once the base is sound, our crew builds the walls and roof, sets the window panels, runs the basic wiring and cleans up as we go.
Some homeowners weigh this room against patio enclosures, which can be a simpler way to close in a patio, and I'm glad to talk through both with you. If your space has an unusual shape or you want the room to match the house closely, our custom sunrooms are planned from scratch around it.
Glass window panels
Glass suits owners who want the clearest view and panels that stay clear through years of cleaning. It usually costs more than plastic, and it's the choice I'd lean toward if you're thinking about heat down the road.
Plastic window panels
Plastic panels suit owners who want a lighter room at a lower price, such as a simple enclosure on a deck. They can scratch more easily than glass, so they're best where the room sees light use.
Three-season sunroom permits in Manhattan Beach
The City of Manhattan Beach requires a coastal permit for every project in its Coastal Zone unless the project is exempted or excluded, so that's one of the first things I look at for a sunroom here. Whether your room also needs a building permit is something we confirm rather than assume, so before work starts we check with the city or county office that covers your address, then prepare and file the paperwork for any permits the job calls for. Plans filed with the city now follow the newest California building codes, and we draw the room to meet them.
We're based in Manhattan Beach and work across the South Bay and the cities around it, and a lot of the rooms we're asked to build go on patios and slabs poured years ago, which is why the slab check comes first. We see the same kinds of patios on jobs in Redondo Beach and Hermosa Beach, and we plan those rooms the same careful way.
Why Manhattan Beach homeowners call us for three-season sunrooms
The owner plans every room
I come out to every job myself to measure and plan the room, and our own crew does the building. You talk with the person who made the plan from the first visit to the last.
Licensed and fully insured
We're licensed and fully insured, and I'm happy to go over that with you before you sign anything. You should know exactly who is working on your property.
Started right here in Manhattan Beach
I learned this trade building patio covers and enclosures, and I started this business in Manhattan Beach in 2023 to build rooms the way I was taught. That means planning with care, finishing cleanly and treating your home as if it were my own.
On a three-season room, the planning decides how well it works for years, so I'd rather take the time up front. When you're ready, send us a request or call (424) 290-8610.
Request a quoteGet a written estimate for your three-season sunroom
Thank you for taking the time to reach out. We'll reply within one business day to set up a free on-site estimate, and there's no pressure to book. I'll come out to measure and look at what the room will sit on, and then you'll get a written estimate.
What happens after you ask about a three-season sunroom?
Call or send a request
Call (424) 290-8610 or use the form, and we'll get back to you to set a time for a visit. It helps to include your address so I can check the permit picture before I arrive.
I measure and plan
I come out myself to measure, look closely at what the room will sit on and talk through the room you have in mind. You then get a written estimate, so you can see what's driving the price before you decide anything.
We handle the permit paperwork
We prepare and file the paperwork for any permits the job calls for. Building starts once that's in place, so nothing on your property gets ahead of the city.
We build and walk through
Our crew builds the room in stages, so you can see each part come together. Before we call it done, we walk through the finished room with you.
Frequently asked questions
How much does a three-season sunroom cost near Manhattan Beach?
A three-season sunroom built onto an existing patio, deck or slab in the Los Angeles area usually costs about $110 to $160 per square foot. That usual price covers labor, standard materials such as windows and roofing, and basic electrical wiring, while insulation, heating and cooling, plumbing and construction permits cost extra. Your written estimate shows what your own room will cost.
How do I know if my Manhattan Beach home is in the Coastal Zone?
The city's interactive Coastal Zone map shows whether your property is inside it. If it is, the coastal permit rule described above applies to your sunroom unless the project is exempted or excluded. Let us know what the map shows when you call, and I'll look at it with you.
Does a sunroom contractor need a license in California?
Yes, whenever the work needs a permit of any kind, California's contractor licensing board says the contractor must be licensed, even on a project under $1,000. Since a sunroom in the Coastal Zone needs the coastal permit unless it's exempted or excluded, ask any contractor you're considering about their license before you sign.
Can I add heat to a three-season sunroom later?
You can plan for it, but it's easier to decide now, because the industry's sunroom standard counts a room built to be heated or cooled and open to the house as living space. That kind of room also needs windows that meet added rules for heat loss, so if heat may come later, it's worth choosing windows that qualify from the start.
How do I compare windows between two sunroom quotes?
Ask each contractor which sunroom grade their product meets, because a higher grade adds requirements for how well the windows resist air leaks and water getting in. That gives you a fair way to compare quotes on drafts and rain instead of guessing from a brochure.
Are sunrooms in California built to handle earthquakes?
The industry's sunroom standard requires sunroom structures to be designed for earthquake forces, so the room is built to handle shaking. Local building and fire rules can differ from that standard, and the local rules win where they conflict, so it's fair to ask any contractor how their design meets the city's rules too.
Other ways to close in your patio
Patio enclosures
If you mainly want to block the wind on a patio you already have, an enclosure may be all you need.
Custom sunrooms
When your lot or house doesn't suit a standard layout, a custom room is drawn around the space you have.
Manhattan Beach, CA
Plan your three-season sunroom with us
Send your address, the rough size of your patio or slab and whether you're in the Coastal Zone, and I'll come out with the right questions already in hand.