Sunroom contractor in Fountain Valley, CA - rooms that fit the house you have
Seal Beach Sunrooms & Patios builds sunrooms, patio enclosures and patio covers for Fountain Valley homes, turning the patio or deck out back into a room you'll use, tied into the house so it fits.

- Fully licensed and insured.
- Free estimates at your property.
- Expect a reply within 1 business day.
About Fountain Valley, CA
When I drive into Fountain Valley for an estimate, I'm usually pulling up to a one- or two-story stucco tract house on a flat lot, with block walls between the backyards and a patio slab off the family room. The city sits right next to Huntington Beach and Westminster, and the neighborhoods feel much the same once you're on the residential streets, with shopping and offices mostly along the main roads.
Because so many of these houses were built from the same few plans, the backyard question is usually the same too. There's a slab, a stucco wall and an eave above it, and how well the new room ties into those three things decides how it holds up.
Services in Fountain Valley, CA
Patio-to-sunroom conversion
Most Fountain Valley backyards already have a slab against the back wall, so a patio-to-sunroom conversion is usually where people start. We build on what's already there where it's sound and tie the room into the house so it reads as part of it.
Patio enclosures
Plenty of families here want the patio usable more of the year without a full addition, and an enclosure with sliding glass or vinyl panels does that. We fit the panels to the cover and slab and seal the joints where they meet the stucco.
Four season sunrooms
If the room is going to be a den, a playroom or an office, a four-season room with insulated walls, roof and glass ties into your heating and cooling. I'll walk you through what that adds over an unheated room so the choice is really yours.
Three season sunrooms
When the room is mostly for plants, mornings and weekend dinners, a three-season room skips the insulation and ductwork and costs less to build. On a tract-home patio it's the simpler job, and it still keeps the dust and bugs out.
Patio cover installation
Some yards here just need a solid roof over the slab, or a new cover to replace one that's started to sag. We build it so it can carry walls later if you decide to enclose it, which saves tearing it down and starting over.
Sunroom remodeling
Rooms and enclosures added to these houses years ago often have leaking seams, foggy panels or a roof that drips where it meets the house wall. We redo the joints, panels or roof that have failed and keep whatever is still sound.
What to know before a sunroom goes up in Fountain Valley
In Fountain Valley, the permit for a sunroom comes from the city's Building & Safety Division, and the owner or contractor applies there before any work starts, so the schedule turns mostly on the city's plan review and on how much of the old patio we can keep. Before you hire anyone, check their state license with the Contractors State License Board and make sure they hold a Fountain Valley business license, which the city requires of every subcontractor before they start. We're fully licensed and insured, and we find out what the city will ask for, pull the permits and set up the inspections, so you're not chasing paperwork. The size of the room and whether you heat it move the price most, and the written estimate puts a number on your room.
Most backyards here are reached through a narrow side yard and a gate, so our crew carries framing and glass panels back by hand and covers the stucco and planters on the way through. Block walls sit close to the patio on a lot of these lots, which means we plan where the room's edge lands before we draw it. Houses in Cypress are built much the same way, and we do the same work there.
Fountain Valley, CA properties and local conditions
A lot of Fountain Valley houses came with an aluminum or wood patio cover, or got one from an earlier owner, and the first thing people ask is whether we can just add walls to it. Sometimes we can, but most of those covers were built to hold up a light roof and nothing else, and glass walls push and pull on the posts and beam in ways the cover was never meant to take. I check how the posts are anchored, how the beam is fastened to the house and whether anything has sagged, and if it won't carry walls I'll tell you so and we'll build a frame that will.
The other thing I look at hard is the back wall of the house. A new roof meets the stucco right under the eave, and that joint is where leaks start if the flashing is rushed, so we take our time there because you won't see it once the room is done.
Get a free on-site sunroom estimate for your Fountain Valley home
Send the form and we'll reply within one business day to set a time. I come out to your Fountain Valley house myself, look at the patio and how you want to use the room, and sketch the options with you. You get a free written estimate with no pressure and no obligation.
How a sunroom job goes when you call us in Fountain Valley
Call or send the form
Call (562) 200-7987 or use the form, and we'll set a time for me to come to your house. We answer seven days a week, so evenings and weekends are fine.
I look at your patio
I check the house wall, the slab or deck and any old cover, ask how you'll use the room and sketch a couple of options right there. The written estimate spells out what's included, so you can compare it line by line with anyone else's.
Permits, then our crew builds
We pull the permits the job calls for and set the inspections, then our crew and I build the room. The city wants its subcontractor form at least two weeks before the final inspection request, so we file it early and the final isn't held up.
Walk the finished room together
When it's done, I walk the room with you and check the doors, panels and seals. I'll show you how to clean the tracks and what to keep an eye on so it stays tight.
Frequently asked questions
Do I need a permit to build a sunroom in Fountain Valley?
Plan on one, because a sunroom builds onto your house and the city issues permits to build, enlarge or alter a structure. The work the city lists as exempt is finish work like painting, tiling, carpet and cabinets. If you want to ask the city directly, the Building Division takes calls at 714-593-4429, and we pull the permit as part of our job.
What is the best way to apply for a building permit in Fountain Valley?
Apply through the city's Permit Center, its online plan check system, where plans go in as PDF uploads. If a project needs Fire Department review, paper plans go in separately. Any electrical, gas or mechanical work for the room goes through the building official at the start too, and we put the whole package together for you.
Do subcontractors need a business license to work in Fountain Valley?
Yes, every subcontractor needs a Fountain Valley business license before starting work in the city. If you want to confirm one, the city's Business License Dept. answers questions at 714-593-4421. On a permitted job, the list of subcontractors also goes to the building department for approval, and we handle that.
How much can a contractor ask for as a down payment on a home improvement job in California?
Under the state board's rules, a contractor can't ask for or take more than $1,000 or 10 percent of the total contract price, whichever is less. The board says that applies to all home improvement projects, so a sunroom in Fountain Valley falls under it. If someone asks for more up front, that's a good reason to slow down.
How much does a sunroom cost in Fountain Valley?
Your price comes down to the room's size, whether it's a four-season room you heat and cool or a three-season room you don't, how much of your slab and cover we can reuse, and how much electrical and finish work goes in. Building on a sound slab keeps the cost down, while full insulated glass and a tie-in to the main roof add to it. The written estimate gives you the number for your house, line by line.
How do I know if my patio slab can hold a sunroom?
You usually can't tell by looking, so I check the slab's thickness at the edge, the cracks and whether it slopes away from the house before we plan walls on it. A lot of slabs here were poured for a patio table, not a wall, and when that's the case we add a footing under the new walls and keep the rest of the slab.
Service areas
Seal Beach, CA
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Huntington Beach, CA
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Garden Grove, CA
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Long Beach, CA
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Costa Mesa, CA
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Norwalk, CA
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Irvine, CA
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Westminster, CA
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Cypress, CA
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Lakewood, CA
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Bellflower, 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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Seal Beach, CA
Plan your Fountain Valley sunroom with us
Bring the photos and ideas you've been saving, and I'll sketch them against your actual patio so you can see what fits before you decide anything.




