Sunroom Contractor in Azusa, CA - Rooms Built Square on Foothill Lots
Baldwin Park Sunrooms & Patios is a sunroom contractor that builds sunrooms, patio enclosures and patio covers in Azusa, CA. We turn a patio, deck or slab into a room that fits the house and stays sealed at the edges.

- Licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
Foothill homes and backyards across Azusa
Azusa sits right up against the San Gabriel Mountain foothills, and the houses we see here run from older single-story homes with a slab patio out back to newer homes on sloped lots with a raised deck. A lot of our Azusa calls start the same way. There's a patio cover that's done its job, or a deck nobody sits on in the afternoon sun, and the homeowner wants a real room there. We're a sunroom contractor based in Baldwin Park, CA, and we see the same mix of homes in nearby Duarte and Covina.
Older slabs weren't always poured to carry walls and a roof, and a deck on a slope puts more load on its posts and footings, so on Azusa jobs I spend extra time on what the room will sit on. A room that starts square on a solid base is a room that stays sealed.
Permits, licenses and ground we deal with in Azusa
In Azusa, building permits come from the city's Building Official, and the first step for a construction project is checking with the Planning Division whether it needs Design Review approval, so that answer shapes how soon a build can start. We confirm whether your address goes through the city or Los Angeles County before work starts, and we take care of the permit paperwork when the job calls for one. Before you sign with anyone, you can check two things about the contractor, a California contractor license and an Azusa business license, and the questions below cover when each one applies.
On the steeper streets near the foothills, we plan access ahead of time, because frames and glass have to get from the curb to the backyard without damage. The price moves mostly with the room's size and type, the glass, whether it opens to the house and what the base needs, and the schedule turns on the city's review and on when the frame and glass arrive. The written estimate I give you after measuring spells out your own figure, and it's the same crew and the same process we use down in Rosemead.
Get a measured sunroom estimate for your Azusa home
We get back to you within one business day to set a time, then I come out to your Azusa home myself to measure the space and check the slab or deck underneath. The estimate is free, it comes in writing, and there's no obligation.
Call (626) 869-2042Services in Azusa, CA
Patio-to-sunroom conversion
Many Azusa backyards already have a slab patio, and turning it into a room starts with checking whether that slab can carry walls and a roof. If it can, we build on it, and if it can't, I tell you what it needs first.
Deck-to-sunroom conversion
On sloped yards near the foothills, a raised deck is often the only flat spot, so it's a natural place for a room. I check the posts, footings and framing before we plan anything on top, because a deck built for chairs isn't always built for walls.
All season rooms
If you want a room you'll sit in on summer afternoons and cool evenings alike, all season rooms with insulated glass and a closed connection to the house are the ones to look at. We match the frame and roofline to your house so the room reads as part of it.
Patio cover installation
Plenty of Azusa homeowners start with shade over the back patio and close it in later. We set the cover square and level to the house, which makes adding walls down the road a lot easier.
Screen room installation
A screen room keeps bugs off an evening patio without the cost of a fully glassed room. We fit it tight to the house and the slab, since gaps at the edges are where screen rooms let you down first.
Sunroom remodeling
Older patio enclosures around Azusa often leak at the roof line or have panels that have clouded over. We find what's still sound, replace what isn't and reseal the edges where the room meets the house.
What happens after you call us about an Azusa sunroom
Call or send the form
Call (626) 869-2042 or send the form with a few lines about the patio, deck or slab you want closed in. We set a time for me to come out, and it helps if you're home so we can walk the spot together.
I measure and check underneath
I measure the space myself and check the slab or deck underneath, because that decides whether the room will sit square. We talk through the room type, the glass and whether it opens to the house, and you get a written price before anything is ordered.
We sort out city requirements
Once you're ready, we confirm what the city asks for at your address and handle the permit paperwork when the job calls for one. If Design Review applies, that comes first, and the city's review sets the pace before the build can start.
Our crew builds your room
Our own crew does the build, setting the room square to the house and sealing it where it meets the wall. Satisfaction guaranteed.
Common questions
How much does it cost to add a sunroom to a house in Azusa, CA?
The price depends mostly on the room's size, whether it's a screen, three season or four season room, the glass, and what the base needs before it can carry walls and a roof. On Azusa jobs the base is where prices differ most, because an older slab or a raised deck on a slope sometimes needs work before the room goes on. After I measure and check underneath, you get a written estimate for your house.
Does a sunroom need a permit in Azusa, or is it exempt like a small shed?
A sunroom isn't on the exempt list the city posts on its building permits page, which covers things like one-story detached sheds and playhouses up to 120 square feet, low fences and short retaining walls. The city requires a building permit whenever a structure is built, enlarged, altered or converted, which is what adding a room or closing in a patio usually does to a house.
Does a contractor from outside Azusa need an Azusa business license?
Yes. The City of Azusa requires every business located or operating in the city to get a business license before doing business there, and that includes businesses based outside the city limits. That covers us too, since we're based in Baldwin Park, and it's a fair thing to ask any contractor about before you sign.
How do I know if a sunroom contractor needs a California license?
A contractor needs a license from the Contractors State License Board when the project needs a building permit, uses employee labor, or when labor and materials come to $1,000 or more. A sunroom job almost always meets at least one of those. We're licensed and insured, so ask any contractor you're weighing for their state license before you hire.
How do I check if my Azusa home is in a high fire hazard zone?
Check with Cal Fire, which is where the city sends homeowners to find out whether a site sits in a Very High Fire Hazard Severity Zone. Parts of Azusa fall inside one, as the city notes in its building design requirements. A city staff report has also proposed requiring at least a Class B fire rating on roof coverings in the parts of the city outside those zones, so we confirm what your room's roof has to meet wherever your house sits.
Does earthquake risk in Azusa change how a sunroom gets built?
It can, since parts of Azusa sit in earthquake fault zones and in areas prone to liquefaction, where loose, wet soil can give way in a quake, or to landslides. That's one more reason I check the slab or deck the room will sit on before a single part is ordered, and we confirm what the city asks for at your address before work starts.
Tell us about your Azusa patio or deck
Call (626) 869-2042 any day of the week or send the form, because an hour spent measuring now saves guessing once parts are on order.




