Sunroom contractor in Joshua Tree - rooms that fit the house you have
Twentynine Palms Sunrooms & Patios builds sunrooms, screen rooms, patio enclosures and patio covers for homes in Joshua Tree, CA. We design each room to join your house so it looks like it was always there.
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Joshua Tree houses rarely share one shape
Joshua Tree is a high desert community where the houses tend to sit apart on their lots rather than shoulder to shoulder. On our jobs here we meet older houses that have been added onto more than once, newer builds, and a lot of places where a past owner poured a patio or built a deck that never quite matched the rest of the house. It's a short drive from our base in Twentynine Palms, and I like the work here because so few houses are alike.
That mix is why I look at the base and the wall before we talk much about the room. A slab poured for patio chairs, an old deck or a roofline that changes pitch halfway along all change how a room goes on, and I'd rather learn that at your house than halfway through the build.
What changes when you build in Joshua Tree
Joshua Tree is unincorporated, so the permit for your sunroom comes from San Bernardino County's Building and Safety Division, which issues permits for additions and alterations and answers permit questions for the desert area at (760) 995-8140. That puts the county's plan review and inspections on the schedule, so we file once the design is settled instead of guessing. The county doesn't issue a general business license out here, which means the license worth checking on any contractor is the state contractor license, and we're fully licensed and insured.
We deal with the county paperwork on your behalf, the same way we deal with whichever office covers the address on jobs in Yucca Valley and the other cities around it. What moves the price here is mostly what the room sits on, how it joins your wall and roof, its size, and how closed in you want it, from screens to an insulated room with glass. The schedule turns on that same base work plus the county's review and inspection days, and I put all of it in writing before you decide.
What do Joshua Tree houses need from a sunroom?
A lot of the houses we see in Joshua Tree already have a concrete patio or a wood deck out back, and most owners want to close that space in rather than start fresh. Whether that works depends on what's underneath, because a slab poured for a grill or an aging deck often wasn't built to carry walls and a roof, so I check the base before we draw anything and tell you if it needs new footings to hold the walls.
Where the room can go matters too. The county says building setbacks, the required distance from your property lines, have to be kept whether or not a structure needs a permit, so I measure from the lines before we settle the room's size.
- Call (760) 362-8204
- Mon–Fri: 6 AM–10 PM, Sat–Sun: 7 AM–11 PM
- Twentynine Palms, CA 92277
Sunroom work we do in Joshua Tree
Four season sunrooms
If you want a room you'll sit in every month of the year, a four season sunroom with insulated walls, roof and glass is the one to build. We tie it into your wall and roofline so it reads as part of the house, not something bolted on.
Patio-to-sunroom conversion
Plenty of houses here have a back patio slab that already gets used, and turning it into a room keeps that spot while adding walls and a roof. We check the slab first and add footings where it can't carry the load on its own.
Deck-to-sunroom conversion
An older wood deck can become a room, but only if the framing under it is sound enough to hold walls and a roof. We look at the posts and joists and tell you whether to build on it or rebuild the base first.
Screen room installation
When you mostly want to sit outside without the bugs, a screen room keeps the open feel and usually costs less than a glass room. We frame it to match the house so it doesn't look like a kit set down in the yard.
Custom sunrooms
Houses here that have been added onto more than once often have walls and rooflines that don't line up, and a stock room won't fit them. We design a custom room around what's already there so the roof and walls meet the house cleanly.
Patio cover installation
Not every patio needs walls, and a cover gives you shade over the slab you already have. We attach it to the house or set it on its own posts, depending on what your wall and roof edge can hold.
How it goes when you call us about a room in Joshua Tree
Call or send the form
Call (760) 362-8204 or send the form, and we'll set a time for me to come out to your house. It helps if you're home for the visit, since a lot of it is me asking how you'll use the room.
I come out and measure
I measure, look at what the room will sit on and how it will join the house, and we talk through the kind of room you want. Then I write the estimate, with what the price covers and what it doesn't.
We handle plans and build
Once you say go, we prepare the plans, file for the permit and our crew builds the room while I check in. Some remote parts of the county only get inspections on certain weekdays because requests are few, and the county posts which days each area gets them, so we book each inspection around that.
We walk the finished room
When the room's done, I walk through it with you and answer whatever comes up. Your satisfaction, guaranteed.
Get a free on-site sunroom estimate in Joshua Tree
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 Joshua Tree house. The estimate is free, it's done on site and there's no obligation. You'll get a written price that says what it covers and what it doesn't, so you can decide on your own time.
- Fully licensed and insured.
- Phone
- (760) 362-8204
- Location
- Twentynine Palms, CA 92277
- Hours
- Mon–Fri: 6 AM–10 PM, Sat–Sun: 7 AM–11 PM
Questions about sunrooms in Joshua Tree
Who can pull a building permit for a sunroom in Joshua Tree?
The property owner, a California licensed contractor, or an agent for either one can pull a permit with the county. When a licensed contractor pulls it, the county has to get a signed statement giving the license number and saying the license is in full force, and contractors must provide it by law. On our jobs, we file the plans and handle the inspections, so you don't have to.
How long does a San Bernardino County building permit stay valid?
A county permit expires if work hasn't started within 12 months of being issued, or if work stops for 12 months. The building official can grant a 180-day extension in writing after a written request that shows good cause. We file once the design is settled and you're ready, so the clock isn't running on a room that's still being decided.
What building code does a new sunroom in Joshua Tree have to meet?
It has to meet the current California Building Standards Code, which state law requires the county to adopt and enforce. The 2025 edition took effect January 1, 2026, and it applies to permit applications sent to county Building and Safety now. We draw the plans to that code before they go in for review.
Can someone without a contractor license build a screen room in Joshua Tree?
Only on very small jobs, because California's minor work exemption from the license requirement rose from $500 to $1,000 at the start of 2025. It applies only when the work needs no permit and the unlicensed person has no one working for them on the project. Anything past that calls for a state licensed contractor, so ask for the license number before anyone starts.
How much does a sunroom cost in Joshua Tree?
A sunroom here costs what its size, its base and its level of finish add up to, so I price it at your house after measuring. The biggest moves are whether the slab or deck under it can carry the room or needs new footings, how the roof ties into yours, and whether you want screens, glass or a fully insulated room you can heat and cool. Plans and the county permit are part of the cost too, and the estimate lists what's in and what isn't.
How do I turn my Joshua Tree patio into a sunroom?
Start by finding out whether the patio slab can carry walls and a roof, because a slab poured for chairs and a grill often wasn't built for that. I look at the slab's edges and where it meets the house, and then we decide between building on it, adding footings or pouring new. From there we draw the room, file the plans with the county and build it.
Areas we serve
Book your Joshua Tree sunroom visit
The base, the roof join and the glass cost the least to change while they're still on paper, so call (760) 362-8204 or send the form and we'll settle them first.
Request an estimateCall (760) 362-8204