Three season sunrooms in Lynwood CA - a glassed-in room you'll use most of the year
If your patio sits empty because of sun, wind or dust, we close it in with glass walls so you'll actually use it again.

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- Three season sunrooms
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- (424) 296-8574
How do you know a three season room might fit your house?
Patio furniture sitting unused
You've got chairs and a table out back that nobody sits in because the afternoon sun or the wind makes it uncomfortable. That usually means the space is too exposed, not too small, and every season you wait is another season of a yard you're paying for but not using.
Sweeping dust off every day
If you're wiping leaves and grit off the patio and the cushions all the time, the open sides are letting the weather straight in. Left that way, cushions and furniture tend to fade and wear out a lot sooner than they would behind glass.
House feels short on space
When the kids, a hobby or visiting family have nowhere to spread out, people often start looking at the slab out back. A three season room can give you that extra space for much of the year, and holding off usually just means another year of living cramped.
What is a three season sunroom, and is it right for your house?
A three season sunroom is a room closed in with glass or clear panels that's kept separate from your house and isn't heated or cooled. At Sunhaven Lynwood Sunrooms & Patios, we build three season sunrooms on patios, decks and slabs in Lynwood, CA and the cities around it, including South Gate, Compton, Downey and Long Beach.
Most people who call me have a patio, deck or slab they wish they used more, and the first thing I'd look at is whether you want a room for mild days or a room you can heat, because that choice decides everything after it. The price mostly moves with the size of the room, whether there's already a slab and a patio cover we can build on, the glass or panels you pick and how much wiring you want. The schedule mostly turns on the drawings and the city's permit review when your job needs one. Your estimate will spell out what's in the price for your space.
Details to note before an estimate
- Rough length and width of the space
- Existing slab, deck or patio
- Any patio cover already in place
- How you plan to use the room
How we build a three season sunroom
I start every three season room with two things. If there's already a patio cover, we look closely at how it will tie into the new walls, because that roof becomes part of the job, and one maker's instructions, for example, call for raising the front of an existing patio roof several inches above the planned wall height and bracing it while the walls go in. I also make sure you know this room isn't built for heating before you choose it, since that's much easier to settle now than after the walls are up. From there our crew sets the wall frames on your slab, deck or patio, fits the glass or clear panels, finishes the roof tie-in and any wiring your estimate includes, and cleans up as we go.
A lot of people asking about a three season room are really choosing between a few close options. If you mainly want to close in the patio you already have and keep things simple, patio enclosures may be the better fit, and if you want a room shaped around your house and the way your family lives, our custom sunrooms start from a blank page.
Other rooms worth comparing
Patio enclosures
Worth a look if your patio already works and you just want it sheltered from wind, dust and sun.
Custom sunrooms
For a room planned around your layout and your family's habits, including one you intend to heat.
What happens after you call about a three season room?
Call and set a visit
You call (424) 296-8574 or send the form, and we set a time for me to come out. I'll see the space, take measurements and listen to how you want to use the room.
Get a written estimate
We write up an estimate that spells out what's in the price for your room, so you know exactly what you're paying for. It also tells you whether your job will need drawings and a permit.
Drawings, permits, then the build
When the job calls for it, we prepare the drawings, handle the permit application and line up the inspections. Then our own crew, led by a lead installer, builds the room while I check in at each stage.
Walk through the finished room
When the room's done, we walk through it together so you can see every part of the work. I'll show you how to look after it before we hand it over.
Questions before you book a three season sunroom
What does a three season sunroom cost near Lynwood?
A three season sunroom in the Los Angeles area usually costs about $110 to $160 per square foot, including labor, according to one pricing site. That site's breakdown says the usual price covers building onto an existing patio, deck or slab, standard windows, siding and roofing, and basic wiring, but leaves out insulation, heating and cooling, plumbing and permits, so budget for those on top if you want them. Your estimate from us spells out our price for your room and what's in it.
Can a three season room be heated or cooled?
Not as it's built, because a three season room is defined as unheated, uncooled space that's kept separate from the house and isn't counted as living space. Under one industry specification, a sunroom with its own heating or cooling system is a different kind of room altogether, so if you plan to add either, that's the room you're really choosing. That's why I settle this question with you before anything gets drawn.
Who issues building permits in Lynwood?
Lynwood's Building and Safety Division issues building permits and reviews the plans for building or altering any structure in the city, so that's the office for a sunroom at a Lynwood address. When your job needs a permit, we prepare the drawings, handle the application with the city, line up the inspections and keep you posted at each step.
How do I apply for a sunroom permit in Lynwood?
In Lynwood, your plans need Planning Division approval attached to a completed plan check form before they go to the building side for review, so the planning step comes first. The city only accepts plans drawn on a computer drafting system, not by hand, and residents can apply online through the city's portal instead of making a trip to City Hall. We take care of that paperwork for you.
What should my contract include for a sunroom in California?
In California, any home improvement job over $500 needs a written contract, and any changes to it have to be in writing too. The contract should say who's getting the permits, give a completion date and tell you about your right to cancel, so ask your contractor to show you where each of those is. I'd rather you read ours closely before you sign.
How do I check a sunroom contractor's license in California?
You can look up any contractor's license status online with the Contractors State License Board, the state board that licenses contractors. We're licensed and insured, and I'd encourage you to check us the same way before you sign anything.
Get a written estimate for your three season room
Send the form and we'll reply within one business day to set a time for me to come out, measure and hear how you want to use the room. The visit and the written estimate are free, and there's no pressure to book.
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Start your three season sunroom with a call
Have the rough room size handy and tell us whether there's already a slab or patio cover, and I can point you to the right kind of room on the first call.




