Sunroom contractor in Garden Grove, CA - rooms that start with a sound slab
Fountain Valley Sunrooms & Patios builds sunrooms, patio enclosures and patio covers on Garden Grove homes, and turns tired older rooms into ones you'll use. We check what each room stands on before we build.

- Fully licensed and insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Patios and backyards across Garden Grove
Most of the Garden Grove houses we're called to are single-story homes on tract lots, many of them a good few decades old. They usually have a concrete patio off the back slider, and often an aluminum cover that's been up nearly as long as the house. You'll find the same kind of streets as you head over toward Westminster, and they're close kin to what we build on at home in Fountain Valley.
That shapes the job here more than anything else, so the first thing I do on a Garden Grove job is look at what the room will stand on.
What a sunroom job in Garden Grove goes through
Here the permit is the city's call. The Building & Safety Division applies the state and local building rules to every structure in Garden Grove, so a sunroom's plans go through them, and we can't start building until they've reviewed the plans and issued the permit. Before you hire anyone, please check two things: that the contractor holds a state license with the Contractors State License Board, and that a contractor based in another city has filed the city's business license form for working in Garden Grove. We're fully licensed and insured, and I'm glad to show you our paperwork.
From Fountain Valley, Garden Grove is a short drive, and we work the same way up into Santa Ana, so getting our crew and materials to you is the easy part of the schedule. What moves the price is the size of the room, whether the slab or deck can carry it as it stands, the glass and roof you choose, and whether you want power, lights or a fan run out to it. The schedule turns mostly on the city's review and inspections, and on how long your windows and panels take to arrive. My written estimate spells out what's included, so you can see where your money goes.
Get a free on-site sunroom estimate for your Garden Grove home
We reply within one business day to set up a visit at your Garden Grove home, and the estimate is free with no obligation. I come out myself to measure and look things over, then send you a written estimate that spells out what's included.
Call (657) 329-2023Services in Garden Grove, CA
Patio-to-sunroom conversion
Many Garden Grove homes already have a concrete patio off the back door, which makes a good floor for a new room if it's sound. We check the slab first, then build the walls, glass and roof on it, or tell you plainly what it needs.
Patio enclosures
Tract lots here don't leave a lot of yard, so many people would rather close in the patio they have than give up more lawn. We enclose it with windows and panels under your existing cover when that cover is sound enough to keep.
Sunroom construction
When you'd rather add a new room off the back of a single-story house than enclose what's there, we handle the sunroom construction from the footings up. We tie the new roof into your house so it sheds water the way the old roofline does.
Patio cover installation
A lot of the aluminum covers here have been up for decades and are sagging, leaking at the seams or rusting at the posts. We take the old cover down and put up a new one sized to your yard and set on proper footings.
Sunroom remodeling
Older rooms here often have thin glass and tired frames, so they run hot in the afternoon and end up holding boxes. We replace the glass, repair the roof and frames, and make it a room you'll actually sit in.
Three season sunrooms
Garden Grove's mild winters mean many families can use a room most of the year without full insulation. A three season room keeps out wind and bugs with a simpler build, and I'll tell you honestly whether it suits the way you'll use the room.
What happens after you call us about a Garden Grove sunroom
Call or send a message
Please call (657) 329-2023 or use the form, and we'll get back to you to set up a visit at a time that suits you. A few words about what's out back now help me come prepared.
I measure and look underneath
I come out myself, measure, look over the slab, deck or cover the room will stand on and ask how you plan to use it, so it's best if you can be home. Then I send you a written estimate in plain words.
We handle permits and paperwork
If you go ahead, we take care of the permit and the city paperwork for your project. We'll tell you early if we need anything from you, such as HOA approval.
We build, then walk through
I'm on site with our crew until the room is finished, working within the city's construction hours of 7 a.m. to 7 p.m. on weekdays and 9 a.m. to 6 p.m. on Saturdays, with no work on Sundays or federal holidays. When it's done, we walk through the room together before we call it finished.
Common questions
Do I need a permit to add a sunroom in Garden Grove?
Yes, in most cases, because building or altering a structure is one of the common examples the city gives of work that needs a permit, and so are new windows and electrical work. A sunroom on your house usually involves all three. You can read the city's list on its building permit questions page, and I'll tell you at the estimate what your project calls for.
Who should pull the permit for a sunroom in Garden Grove, me or the contractor?
The city lets the property owner or the owner's authorized agent get the permit, but when a contractor does the work, it says it's always wise to have the contractor get it. We prepare the plans, file them with the city and meet the inspector for you.
How much does it cost to build a sunroom in Garden Grove?
The cost comes down to the room's size, what it sits on and what you put in it, so I give you a written figure after I've seen your yard rather than a guess over the phone. A room built on a sound existing slab usually costs less than one that needs new footings, and running power out for lights or a fan adds to it. The city's permit fees are part of the total as well.
How much can a contractor ask for as a down payment in California?
On any home improvement project, a contractor can ask for no more than $1,000 or 10 percent of the total contract price, whichever is less. That's the state licensing board's rule, so if anyone asks you for more up front on a sunroom, please treat it as a warning sign.
How long does a Garden Grove building permit last?
A permit expires if work hasn't started within 180 days of the day it's issued. It also expires if work stops for 180 days after the last documented progress, so we plan to start once the permit is issued and keep the job moving through its inspections.
How do I know if my patio slab can hold a sunroom?
Have it looked at before you buy anything, because a slab poured for a barbecue and a few chairs wasn't always poured to carry walls and a roof. I look for cracks, sinking corners, how it slopes and how thick it is at the edge. Then I tell you plainly whether it can take a room as is, needs repair or needs new footings, even when the answer is that it's fine.
Tell us about your Garden Grove patio
Call (657) 329-2023 or use the form, and if your old cover or slab is worth keeping, I'll tell you before you plan your room around replacing it.




