Sunroom contractor in Hermosa Beach, CA - patios turned into rooms you'll use
Manhattan Beach Sunrooms & Patios builds sunrooms, patio enclosures and patio covers in Hermosa Beach, CA. We're based in Manhattan Beach, and most of what we do is turn a patio or deck into a room you'll actually use.

- Licensed and fully insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
About Hermosa Beach, CA
Hermosa Beach is a small, close-knit city between Manhattan Beach and Redondo Beach. On our jobs here, the houses tend to sit close together on modest lots, with older, smaller homes next to ones that have been rebuilt or added onto over the years. Outdoor space is precious, so a back patio, side yard or raised deck often does a lot of work for the family.
That shapes the job from the first visit, because a room here usually has to fit the space that's already there and tie in cleanly to a house that may have been changed more than once.
Services in Hermosa Beach, CA
Patio-to-sunroom conversion
On a lot where the back patio is most of the yard, closing it in is often the simplest way to gain a room without giving up more ground. I check whether the existing slab can carry walls and a roof before we plan around it, because some older slabs can't.
Deck-to-sunroom conversion
Plenty of homes here use a raised deck as the main outdoor space, and that's the one people ask us to close in. We look at the posts, beams and footings first, since a deck built for chairs and a grill usually needs work before it can hold a room.
Sunroom remodeling
Older enclosures around town often have tired framing, leaky panels or glass that never suited the room. Our sunroom remodeling work keeps what's still sound and replaces the rest, so you aren't paying to tear out parts that are fine.
Patio enclosures
When houses sit this close together, an open patio can feel like it belongs to the neighbors too. We enclose patios with walls and windows placed for privacy where you need it and light where you want it.
Patio cover installation
Not every patio needs walls, and on a small yard a well-placed cover can give you shade and a covered place to sit without closing anything in. We size the cover and attach it to suit the house, so it looks like it was always there.
Custom sunrooms
Narrow side yards and odd-shaped lots don't always suit a standard room. We design custom sunrooms around the space you actually have, down to a roof line that meets your house cleanly.
What we handle with the city on a Hermosa Beach job
In Hermosa Beach, the city's Building and Safety Division issues the permits for additions and alterations, and it plan-checks the drawings first, so the build date waits on that review rather than on our calendar. Before work starts, we check with the division about what your room needs and then prepare and file the paperwork for any permits it calls for. Business licenses here go through the city's Revenue Services Division and have to be renewed every year, so it's fair to ask any contractor you're considering to show you a current one. We're licensed and fully insured, and we're glad to show you ours.
What moves the price is mostly what the room will sit on, how big you want it and how much glass and roof it carries. The schedule turns on plan check and on what we find once we look under the patio, and the written estimate I give you after the visit puts your own figure on the cost. It's the same careful work we do up the coast in Manhattan Beach and inland in cities like Del Aire and Hawthorne.
Hermosa Beach, CA properties and local conditions
The city notes that in some parts of Hermosa Beach the groundwater sits six to 15 feet below the surface, with underground streams running from inland toward the ocean. A sunroom footing usually stays well above that, but it's one reason I look hard at the ground and the existing slab before we settle on a design. We'd rather plan the base properly than build on a patio that was never poured to hold a room.
Close neighbors and narrow side yards make the build itself the harder part on many lots here. We plan deliveries and staging around tight access, keep the work area tidy for the people next door, and take extra care where new framing meets older walls that have often been patched or altered before.
Get a written sunroom estimate for your Hermosa Beach home
We reply to every request within one business day to set up a time, and then I come out to your Hermosa Beach home myself to measure and look at what the room will sit on. The on-site estimate is free, and there's no pressure to book once you have it in writing.
How a sunroom job goes when you call us in Hermosa Beach
Call or send a request
Call (424) 290-8610 or use the form, and tell us a little about your patio or deck and the room you'd like. We get back to you to set a time for me to come out, and it helps if you can be home for the visit.
I visit, measure and plan
I measure, look closely at the slab or deck the room will sit on and talk through how you want to use it. Afterward you get a written estimate, so you know exactly what you're getting before you sign anything.
We file the permit paperwork
We prepare and file what the city needs for your job, including any reports it asks for. The city plan-checks the drawings before it issues the permit, so building starts once that review is done.
We build, then walk through
Our own crew builds in stages within the city's construction hours, which are 8 a.m. to 6 p.m. on weekdays and 9 a.m. to 5 p.m. on Saturdays, with no work on Sundays or national holidays. When the room is finished, we walk through it with you before we call it done.
Frequently asked questions
Which building code applies to my sunroom project in Hermosa Beach?
Your project stays under the code edition in effect on the day the city receives a complete building permit application with plans. Planning approvals don't lock in an edition, only a complete submittal does, so we aim to send in a full set of drawings rather than a partial one.
Does my older Hermosa Beach home need an asbestos survey before adding a sunroom?
It does if the house was built before 1980 and the work removes or disturbs 100 square feet of surface area. In that case the city wants one of two things before it issues the permit, either a survey showing the asbestos material poses no risk or an abatement permit taken out before any removal begins. I'll note your home's age at the visit so this doesn't catch you by surprise.
Do I need a geotechnical report to build a sunroom in Hermosa Beach?
The city requires applicants to submit a geotechnical report, a study of the soil, before construction starts, and lists it as one of its own requirements. We confirm what your project needs when we check with the city, and we'll tell you up front if a report goes into the estimate.
How much does a sunroom cost in Hermosa Beach?
There's no set figure, because each room is planned to the lot, the house and what's underneath it. Closing in a sound existing patio usually costs less than building a new base, and a simple vinyl room usually costs less than one with more glass, an insulated roof or added power and heat. The written estimate after my visit is where your own number comes from.
What is the best way to turn a patio into a sunroom in Hermosa Beach?
Start with what's underneath, because a room is only as good as the slab or footings it sits on, and many older patios weren't poured to carry walls and a roof. Once that's settled, we plan the walls, windows and roof around how you'll use the space and how close your neighbors are, then take the plans through the city's review.
How do I replace the windows in my Hermosa Beach sunroom without changing the framing?
The city offers a simpler window changeout application when the new windows go into the same openings with no change to the framing. It has to include either a licensed contractor declaration or an owner-builder declaration, and if you'd like us to do the work, we file it for you as part of the remodel.
Service areas
Manhattan Beach, CA
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Redondo Beach, CA
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Inglewood, CA
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Torrance, CA
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El Segundo, CA
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Lawndale, CA
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Del Aire, CA
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Hawthorne, CA
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Gardena, CA
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Carson, CA
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Lennox, CA
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Explore the services
Sunroom additions
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Four season sunrooms
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Three season sunrooms
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Patio enclosures
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Custom sunrooms
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Sunroom construction
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Sunroom remodeling
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Screen room installation
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Patio-to-sunroom conversion
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Deck-to-sunroom conversion
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All season rooms
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Enclosed patio rooms
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Solarium installation
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Patio cover installation
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Sunroom design
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Vinyl sunrooms
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Manhattan Beach, CA
Start planning your Hermosa Beach sunroom today
We're open until 10 PM on weekdays and 9 PM on weekends, so you can call (424) 290-8610 after work or send the form whenever it suits you.




