Sunroom additions in Adelanto CA - a room planned around how you'll use it
Your patio or deck sits unused much of the year. We help you pick the right sunroom, then build a room you'll actually use.

What does a sunroom addition involve in Adelanto?
A sunroom addition in Adelanto, CA closes in part of your home, anything from a screened porch to a fully enclosed room that's heated and cooled with all weather windows, so you get space you can use for more of the year.
Most people who call us want a patio-to-sunroom conversion, have a deck they'd like to close in, or have an older room they want to use more. The price mostly follows the type of room, its size and what it sits on, because a heated and cooled room on a new foundation costs far more than a screened room on an existing slab, and a deck may need extra support before it can carry walls and a roof. The schedule depends on how early the big choices get made, since heating, glass and the base all have to be settled before anything is ordered, and the plans have to clear the permit office. Your own number comes from the estimate at your house.
How we plan and build sunroom additions
We start with one question, which is whether the room stays closed off with its own heating and cooling or becomes part of the house. Some sunrooms keep your existing doors and windows in place so the room stays sealed off from the home, and others are really a regular room addition, and we work that out with you before drawing anything because it changes the walls, the windows and the plans. Then we settle heating, insulation, glass and what the room sits on, since changing any of those after the walls are up is harder and costs more for everyone. Once the plans and permit are in order, we order materials, and our own crew, led by a lead installer, builds the room and cleans up as they go.
Most additions end up as one of two kinds. Four season sunrooms are heated and cooled with all weather windows, so they work like any other room in the house, while three season sunrooms skip the heating and cooling and use simpler windows or screens, which keeps the cost down for a room you mostly use when the weather's mild.
Why Adelanto homeowners call Glasscraft for sunroom additions
The owner measures every job
I come out myself to look at the space, measure and talk it through with you before anything is drawn. You hear the reason for each choice from the person who plans your room.
Building sunrooms here since 2017
I started the business in Adelanto nine years ago, after years of running schedules for a building company and watching jobs stall when a choice came too late. That's why we settle the big decisions before anything gets ordered.
Licensed and fully insured
We're licensed and fully insured for the work we do on your house. A sunroom addition ties into your walls and roofline, so the people doing it should be covered.
Permits checked for your address
We're based in Adelanto and take jobs in many of the cities around it, on both sides of the county line, so we check with the city or county office that covers your address to see what it asks for. Then we take care of the permit paperwork the job needs, so you don't have to.
When you're ready, send us a few details about your project or call (760) 523-8749. It helps if you already know which type of room you want and whether it'll sit on a deck or a slab.
Get a sunroom addition estimate at your house
We reply within one business day to set a time, and the estimate is free at your property with no pressure to book. I come out, measure the space and talk through the type of room, how it joins the house and what it'll sit on.
Sunroom additions, inside and out
Questions before you add a sunroom
How much does a sunroom addition cost in the San Bernardino area?
A sunroom in the San Bernardino area usually costs about $16,000 to $115,000 per job, and that's the market range, not a quote. Larger rooms that need a foundation and have heating and air conditioning fall at the top of it, so the type of room largely sets your budget. You'll get your own number once we've seen and measured your space.
Can a sunroom go on my existing deck?
Sometimes, but a deck that will carry a sunroom typically needs added beams, posts or footings to handle the extra weight. A local structural engineer can tell whether your deck is suitable, and if it's older or worn, building a new deck may cost less than shoring up the old one.
What does Adelanto ask for with a residential addition?
The city's Building and Safety Division lists construction plans and Title 24 energy calculations, the numbers that show the room meets California's energy rules, among what to submit for residential additions and remodels. The plot plan is measured to all your property lines, which matters because the city's zoning code sets minimum rear yard setbacks from 10 to 25 feet, so on a shallow back yard it can limit how far the room reaches.
Who is allowed to build a sunroom that needs a permit in California?
A licensed contractor. California lets unlicensed people do minor work up to $1,000 only when the work needs no permit and they employ no one, so any job that needs a permit falls outside that. When you compare bids, it's also fair to ask who handles the roof, since a "B" general building contractor may take on a room addition that includes roofing, while roofing alone goes to a licensed roofing contractor.
How do I keep a sunroom in good shape once it's built?
One sunroom company's guide suggests checking the roof and gutters once a year, cleaning the door and window tracks, and keeping the weep holes, the small drain openings in the frame, clear so water can get out. The same guide favors pure silicone spray on the tracks over an oil-based lubricant, which tends to pick up dirt.
What should I check before cutting into a concrete patio slab for a sunroom?
First find out whether it's a post tension slab, one with steel cables held under tension inside the concrete, before anyone saw cuts or breaks it. One California city's building guidance warns that cutting one of those cables can be very dangerous and expensive to repair, so it's worth knowing before the first cut.
Other sunroom work we do
- Four season sunrooms
Pick this if you want a room you can sit in comfortably any month, with heating, cooling and all weather glass.
- Three season sunrooms
A lighter, lower-cost option when you mainly want a sheltered spot for the milder parts of the year.




