Sunroom contractor in Fountain Valley, CA - rooms built on a base we've checked
Fountain Valley Sunrooms & Patios is a sunroom contractor based in Fountain Valley. We close in patios, put rooms on decks, build sunroom additions and rework tired sunrooms into rooms you'll actually use.

- Fully licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Fountain Valley houses and the yards behind them
Fountain Valley is mostly neighborhoods of single-family homes, one and two stories, on lots with a real backyard, and that's where we spend our time. Many of these houses have had the same concrete patio, aluminum patio cover or wood deck out back for years. Owners call us when the patio holds more storage than living, or the old cover has seen better days and they'd like a room they can use. We see the same kind of yards next door in Huntington Beach and Westminster.
That's why a job here usually starts with what's already back there. A slab or deck built for patio chairs wasn't built to carry walls, glass and a roof, so I look underneath before we talk about the room itself.
Permits, licenses and pricing in Fountain Valley
In Fountain Valley, permits to build, enlarge or alter a house come from the city's Building & Safety Division, so nothing gets built until the city approves the plans. You can call the division at 714-593-4429 if you'd like to ask about your project yourself. Before you hire anyone, please check their state license with the Contractors State License Board, and ask whether they and their subcontractors hold a Fountain Valley business license.
When your project needs a permit, we prepare the plans and file them with the city, and we'll tell you early if we need anything from you, such as HOA approval. The price mostly follows the size of the room, glass or screens, and how much work the slab or deck needs before it can carry walls and a roof, while the schedule turns on the city's plan review and any HOA sign-off. Your written estimate puts a figure on all of that for your house. We do the same work in Costa Mesa and the other cities around here, and each one runs its own permits, so we sort out the right office before anything is drawn.
Get a free written sunroom estimate for your Fountain Valley home
Send the form or call (657) 329-2023, and we'll reply within one business day to set a time to come out. I'll measure your Fountain Valley home, check what the room would sit on and send a written estimate that spells out what's included. It's free, and there's no obligation.
Call (657) 329-2023Services in Fountain Valley, CA
Sunroom additions
Many houses here have a back wall with room to grow and a yard deep enough to give a little of it up, which is where sunroom additions make sense. We tie the new room into your roofline and walls so it reads as part of the house, and we size it to how you'll use it, not bigger.
Patio-to-sunroom conversion
Plenty of yards in the city already have a concrete patio, and turning it into a room is often the shortest path to more living space. I check the slab first, because one poured for chairs and a grill may need new footings before it can hold walls and a roof.
Patio cover installation
Where a back patio sits bare or under an old cover that's sagging, a new patio cover gives you shade without closing anything in. We set the posts on proper footings and attach the cover to the house so it sits square and sheds water away from your walls.
Deck-to-sunroom conversion
Some homes here have a raised wood deck off the family room, and a room on top asks far more of it than it was built to carry. We look at the posts, beams and footings first and tell you plainly whether the deck can be built on or needs rebuilding.
Sunroom remodeling
Older sunrooms and patio rooms around Fountain Valley often end up as storage because they're dated, leaky or just uncomfortable to sit in. We replace panels, glass, doors and finishes and fix what's underneath, so the room becomes one you'll want to use again.
Screen room installation
If you want the yard and the breeze without the bugs, a screen room is a lighter, simpler choice than a glass room. We build it on your existing patio or a new base, and we can frame it so glass panels can go in later if you change your mind.
How it goes when you call us in Fountain Valley
Call or send a message
Call (657) 329-2023 or use the form, and we'll set up a time for me to come out. You don't need anything ready except a rough idea of how you'd use the room.
I measure and look underneath
I come out myself to measure, look at the slab, deck or cover the room would stand on and ask how you'll use it, so it helps if you're home. Then you get a written estimate in plain words, so there's no guessing at what you're paying for.
We handle permits and paperwork
If you go ahead, we take care of the permit and the city paperwork from there. Your part is answering questions about the room and getting any HOA approval we've flagged.
We build, then walk through
I'm on site with our crew through the whole build, and we meet the city inspector when the work calls for it. When the room is finished, we walk through it together before we call it done.
Common questions
Do I need a permit to add a sunroom in Fountain Valley?
Plan on one, because adding a sunroom enlarges your house, which is work the city issues building permits for. The city's list of exempt work covers finish work like painting, tiling and cabinets, along with small detached sheds and playhouses. When your room needs a permit, we prepare the plans and file them for you.
Does a patio cover need a permit in Fountain Valley?
Plan on one, since patio covers are on the city's Permit Center list of expedited permits, each filed with a site plan. The Permit Center takes applications and PDF plans online. We draw the site plan and file it there for you.
Do subcontractors need a Fountain Valley business license?
Yes, the city requires every subcontractor to have a Fountain Valley business license before starting work, and the Business License Dept. answers questions at 714-593-4421. On permitted projects, the city's subcontractor form also has to reach the Building Department two weeks before the final inspection is requested, or the final gets delayed. We file ours ahead of that so the last inspection isn't held up.
How much of a down payment can a contractor ask for in California?
Under the state licensing board's rules, a contractor can't ask for or accept a down payment of more than $1,000, and on a smaller contract the limit is lower still. The board sets this out in its guidance on rebuilding after a wildfire or other disaster, and says the rule applies to all home improvement projects. If someone asks for a large sum before work starts, please ask them why.
What drives the cost of a sunroom in Fountain Valley?
A sunroom's cost here comes mostly from its size, whether it's glass or screened, and how much work the base needs before it can carry the room. Tying the roof into your house, adding lights, outlets or a ceiling fan, and the flooring and finish inside all move the figure up or down too. A smaller room built well usually does more for your budget than any other choice, and I'll tell you honestly if you don't need as much room as you're picturing.
How do I know if my patio slab or deck can hold a sunroom?
You usually can't tell from the top, because what matters is how thick the slab is at its edges, what's under it and how the deck posts sit in the ground. Cracks that run all the way through, a slab that has settled toward the house or a deck that bounces are signs it may need new footings or rebuilding. I check this at every estimate visit and tell you plainly what I found.
Start your Fountain Valley sunroom with a visit
Call (657) 329-2023 or send the form, and you'll know whether your patio or deck can carry a room before you spend anything on plans.




