Deck-to-sunroom conversion in Palmdale CA - a room built on a deck that can carry it

Most calls I get for this start the same way, with a deck that bakes in the afternoon and only gets used a few weeks a year. The first decision is whether the room stays closed off from the house or opens to it and gets heated or cooled, because a national sunroom specification counts the open, conditioned room as living space and holds its windows to requirements for air leaks, water and heat. That choice, the deck's size, how much glass you want and what the deck needs before it can carry a room are what move the price, while the schedule turns mostly on deck repairs and the permit. If what's out back is a concrete slab instead, our patio-to-sunroom conversion page covers that job.

I start under the deck, not on top of it, because your deck becomes the floor of the room and I want to know how it was framed and whether it can carry walls and a roof before I quote anything. If boards, joists or posts need work, our crew does that first so the room isn't sitting on a problem. Then we set the floor track and take extra care sealing it, because a leak there is a hard one to get at later. One sunroom maker calls sealing those joints critically important, since a leak there only gets fixed by taking the room apart, so it's fair to ask any installer how they do it. After that we raise the walls and roof, set the glass, tie the room into the house where the two meet and clean up the site.

The room you end up with depends on how you'll use it. If you want it heated or cooled and open to the rest of the house, we build it as one of our all season rooms, with windows and insulation chosen for that. If you'd rather keep it simple and closed off from the house, it's closer to our enclosed patio rooms, just built on deck framing instead of a slab.

Inside city limits, Palmdale Building and Safety oversees construction on all homes, new and existing, so a room added to your house goes through that office. When your job needs a permit, we handle the paperwork and set up the inspections for you. Every Palmdale permit applicant has to include a construction waste management plan, and California's Energy Code sets efficiency rules for additions to existing homes, with standards for walls, windows and doors that depend on the climate zone the house sits in. That's why I settle the room type and the glass with you before we apply, since the window choice has to work for both.

We're based in Palmdale and work across the Antelope Valley, and a lot of the decks we look at were built for chairs and a grill, not for walls and a roof. We see the same thing on jobs in Lancaster and Quartz Hill, so we plan for some deck work up front instead of finding it halfway through. If you're not sure we come out your way, just ask.