Sunroom Contractor in El Monte, CA - Patios Turned Into Rooms That Fit
Baldwin Park Sunrooms & Patios is a sunroom contractor working in El Monte, CA. We turn back patios, slabs and decks into sunrooms, enclosed patio rooms and patio covers, measured to your house and built by our own crew.

- Licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
Houses and backyards across El Monte
El Monte is mostly single-story houses on tight lots, many of them decades old, with busy commercial streets running between the neighborhoods. A lot of families here already live out on the back patio for much of the year. So the call we get is usually about closing that space in or putting a real roof over it, the same kind of call we get next door in Rosemead.
The slab out back was usually poured for a patio, not a room, and plenty of the covers over them were added later by someone else. That's why I check what's under the room and how it meets the house before we talk about glass.
What we know from working in El Monte
For a sunroom inside city limits, the City of El Monte's Building Department handles plan review, the permit and the inspections, and its counter staff tell you which other departments need to sign off on your project. That review is usually what decides when we can start, so we get the paperwork moving as soon as you're ready. If any part of a job reaches onto the sidewalk or street, the city's Public Works permit asks the contractor for a valid El Monte business license, a contractor license, and liability and workers comp insurance that names the city, which is a fair list to ask any contractor about. We're licensed and insured.
El Monte sits right next door to Baldwin Park, where we're based, and we work it the same way we work Covina and the other cities around us. Your price mostly moves with the kind of room, the glass, whether it opens into the house and how much the slab needs before a room can sit on it. The schedule turns on the city's review and on any slab work, and the written estimate spells out the room and the work behind the number.
Get a free in-person sunroom estimate in El Monte
Call (626) 869-2042 or send the form, and we'll get back to you within one business day to set a time for me to come out to your El Monte house. The estimate is free and done at your home, with no pressure and no obligation.
Call (626) 869-2042Services in El Monte, CA
Patio-to-sunroom conversion
Plenty of El Monte houses already have a concrete patio out back that the family uses every day. We check that slab for level and cracks, then build a room on it that ties cleanly into the house.
Three season sunrooms
When you want the patio usable through more of the year without heating and cooling a full room, a three season sunroom is usually the right fit. We frame it to your slab and fit panels that open up on hot afternoons.
Patio cover installation
Many backyards here have an older cover that's sagging or was never attached well to the house. We take it down when it has to go and put up a new cover sized to the patio and fastened to the house properly.
Patio enclosures
If you like the cover you have and just want the dust and bugs kept out, an enclosure closes in the space underneath it. We check that the cover and posts can carry the walls before we measure for them.
Screen room installation
On a small lot where you want evenings outside without the mosquitoes, a screen room is the lighter option. We build it on your existing slab with screen panels sized to each opening.
Four season sunrooms
Some families here want a room they can close up and use in July and in January, often as extra living space on a tight lot. We build it with an insulated roof and walls and glass picked for a room you'll heat and cool.
How it goes when you call us about an El Monte sunroom
Call and set a visit
You call (626) 869-2042 or send the form, and we set a time for me to come out to your house. It helps if you're home so we can talk about how you want to use the room.
I measure and check the base
I measure the spot myself and check the slab or deck the room will sit on, because every part we order is built from those numbers. If the base needs work, you hear about it here, before there's any price on paper.
Pick the room, get the estimate
We talk through the room type, the glass and whether it opens into the house. Then you get a written estimate with those choices on it.
Permits sorted, then we build
Once you're ready, we sort out what your address needs and take care of the permit paperwork when the job calls for one. Then our own crew builds the room.
Common questions
How do I apply for a sunroom permit in El Monte?
You apply in person at El Monte's Building and Safety counter, which is open to the public with no appointment needed. The city's online portal only takes residential electrical panel upgrades and water heater change outs, so a sunroom can't be filed there. That same page has a link to check whether your address is inside the city at all.
Which building code applies to a new sunroom in El Monte?
A sunroom submitted for a permit in El Monte now has to be designed to the 2025 California Building Standards Code, which the city has enforced since January 1, 2026, along with Los Angeles County's amendments. An application filed before that date can stay on the older code only while its plan check hasn't expired, and after that it takes a new application under the new code. If you started an application a while back, it's worth checking that it's still alive before we build from it.
What wind and earthquake loads does a sunroom in El Monte have to meet?
El Monte's design criteria call for a 95 mph wind speed, measured as a 3 second gust with Exposure B, and Seismic Design Category D, or D2 under the residential code, unless a soils report for your lot sets another category. So the frame, the roof and the anchors into the house and slab have to be designed for those loads, not just the glass.
Do I need a Public Works permit if work reaches the sidewalk or street in El Monte?
Yes, El Monte doesn't allow any work on public property without first getting a Public Works permit. The fee depends on what's going onto public property and how many staff hours the city needs to review and inspect it. Most sunroom work stays in the backyard, and when it doesn't, we sort this out before anything goes on the street.
How much does a sunroom cost in El Monte?
Your price comes down to what you build and what it sits on, and I put it in a written estimate after I've measured. Beyond the room itself, the costs people don't see coming are slab repair, taking down an old cover and city fees, which the Building Division has posted an increase for in 2026-2027. Call (626) 869-2042 and I'll come look.
What causes a sunroom to leak or feel drafty?
Most leaks and drafts come from a room set on a base that isn't level or square, or from edges that weren't sealed where the room meets the house and the slab. A patio slab is usually poured with a slope to shed water, which is right for a patio and wrong for a wall unless the frame is built to take it up. That's why I'd rather spend an extra hour measuring than guess.
Book your El Monte sunroom visit today
If you're weighing a patio cover against a full room, one visit lets you see both options worked out for your exact space.




