West Covina Sunrooms & PatiosWest Covina Sunrooms & Patios

Deck-to-sunroom conversion in West Covina CA - a room your deck can carry

Your deck sits unused because of the sun, wind or bugs. We check what it can hold, then build a room you'll actually use.

A bright enclosed deck serves as a sitting room, with large windows, cushioned chairs, a brick fireplace and a wall-mounted television.

Can I turn my deck into a sunroom?

A deck-to-sunroom conversion in West Covina adds framing, a roof and glass walls to the deck you already have. It becomes an enclosed room you can sit in through the afternoon heat, the wind and the bugs.

Most of the calls I get come from people with a deck they hardly use because it's too hot by noon or the dust and leaves never stop. Price and schedule mostly come down to how much the deck needs shoring up, whether an engineer has to look at it, how big the room is and whether you want a three-season room or one that's heated and cooled. When your job needs a permit, we take care of the paperwork and inspections with the city or county office that covers your address. Your own number comes from the estimate, once I've seen the deck.

How our deck-to-sunroom conversion works

Plenty of decks weren't built to hold walls and a roof, so yours gets a careful look first. I check the posts, beams, footings and the ledger, the board that ties the deck to your house. If anything there leaves me unsure, I'll tell you straight that it needs an engineer's eyes before we go further. Once we know what the deck can carry, we shore up what needs it, frame the walls, set the roof panels and fit the glass. I spend the most time where the new roof meets your house, because that's where a small mistake turns into a leak you pay for later. We finish by cleaning up the site and walking the room with you.

Some deck projects end up as a different room than people first pictured. If you want a space that stays comfortable in July and January, heated and cooled, that's one of our all season rooms, and the deck has to be ready for that heavier build. If your deck sits low and mostly needs walls and a roof to block wind and sun, it can make more sense to look at our enclosed patio rooms.

Why West Covina homeowners trust us with their decks

  • The owner checks your deck

    I'm the one who comes out to look at your job, and our small crew does the build with me on site. The person who sized up your deck is the one watching it get built, so nothing gets lost between the estimate and the work.

  • Licensed and fully insured crew

    We're licensed and fully insured, and I'm happy to go over both when I come out. That matters on a deck job, where we're working on a raised structure attached to your house.

  • Rooms sized to West Covina rules

    West Covina's development code sets maximum floor area and building coverage for single-family lots, additions included, and the State Fire Marshal has a March 2025 map of fire hazard zones in the city. We're based here and work in the cities around it, so I check where your lot stands before we settle on the room's size.

  • Awkward decks since 2023

    I started this business in West Covina in 2023, and we're best known for the awkward ones, like odd rooflines, older patios and tired decks. A deck that's settled or sits under a strange roofline is the kind of puzzle I like working out.

On a deck job, what matters most is the part you won't see later, the support underneath and the joint at the house. Take a few photos of the deck, jot down its rough size and think about which kind of room you want. Then call (626) 412-8694 or send us your details, and I'll come take a look.

Get a free deck review and sunroom estimate

We'll reply within one business day to set up a visit. I'll come out, look over the deck and talk through the room you have in mind. The on-site estimate is free, with no pressure and no obligation.

Call (626) 412-8694

Questions before a deck-to-sunroom conversion

How do I know if my deck can hold a sunroom?

You find out by having the deck checked before any work starts, because many home decks weren't built for the frames, roof panels, glass walls and wind pressure a sunroom adds. The national sunroom specification calls for an unbroken path that carries the room's load down to the foundation on a wood deck of any height, so the posts and footings matter as much as the boards. An engineer or a qualified contractor should do that review, and it's the first thing I do when I come out.

What does a sunroom cost in the Los Angeles area?

A sunroom addition in the Los Angeles area usually costs about $23,000 to $66,000 for 200 square feet. That range is a general guide for a new addition. On a deck, the shape the deck is already in, the size of the room and whether it's heated and cooled decide where yours lands. I'll give you your own figure after I've seen the deck.

Should I build a three-season room or a heated sunroom on my deck in West Covina?

If price and speed come first, start with a three-season room. One sunroom company says it's cheaper and faster to build because it needs less structural reinforcement, a lighter roof and no insulation or heating and cooling work. Under the same specification, a room that's heated or cooled and open to the house counts as living space, with windows that have to meet air, water and thermal performance requirements, while an unheated room doesn't. On a deck I usually lean toward three-season unless you really want the room year-round, since it asks less of the structure underneath.

How much deposit can a contractor ask for on a home improvement job in California?

No more than $1,000 or 10 percent of the contract price, whichever is less. The Contractors State License Board makes no exception for special-order materials, so even with a big glass order, plan on a small deposit.

How long does a deck-to-sunroom conversion take?

One sunroom company puts a standard deck conversion at about 4 to 8 weeks from start to finish, depending on size and how complicated it is. A room with heating and cooling takes longer because the electrical and mechanical work adds time, and a deck that needs an engineer's review adds a step at the start.

Do I need a written contract for a sunroom project in California?

Yes. The board requires a written contract for any home improvement job over $500, and the contract and any changes to it have to tell you about your right to cancel. It also has to give a completion date and say in writing who will get the needed permits, so read those lines before you sign.

  • All season rooms

    For when you want the new room comfortable in the hottest and coolest months, with heating and cooling built in.

  • Enclosed patio rooms

    For a ground-level patio or a low deck where walls and a roof are enough to shut out wind, dust and afternoon sun.

(626) 412-8694Request an estimate