Sunroom Contractor in Diamond Bar - Rooms Built for Hillside Back Yards
Solstice Chino Sunrooms & Patios is a sunroom contractor based in Chino that builds sunrooms, patio enclosures and patio covers for Diamond Bar homeowners. We tell you straight what your deck, slab or patio cover can carry.

- Service area
- Diamond Bar, CA
- Call
- (909) 413-6398
Hillside homes across Diamond Bar
A lot of Diamond Bar sits on hills, so the back yards we see here often drop off behind the house. Plenty of homes have a raised wood deck or a small slab against the back wall instead of a big flat patio. Most of our calls come from homeowners in settled neighborhoods who want a room they can actually use without giving up the view they bought the house for.
We do the same work next door in Chino Hills and Pomona, and out in flatter cities like Eastvale, and the difference shows up fast. On a slope, the job turns on what's under the room, because a deck built for a grill and a few chairs usually wasn't framed to hold glass walls and a roof.
Our services in Diamond Bar, CA
Raised decks off the back of the house are common on Diamond Bar's sloped lots, and a lot of owners would rather close one in than start over. We check the posts, beams and footings first, and a deck-to-sunroom conversion only goes ahead once that frame can carry the room or we've added what it needs.
Where the yard is flat enough for a slab, a solid patio cover is often the first thing people want, because it gives shade without walls. We tie it into the house so the water runs off the roof and away from your wall instead of down behind the stucco.
Plenty of homes here already have a covered slab that ends up holding patio furniture and boxes. Before we enclose it, we check whether the slab and the old cover can carry walls and glass, and we'll tell you plainly if the cover has to come down.
When there's no deck or slab worth keeping, a new room built from the footings up is usually the better money. We set it on its own foundation and tie the roof into the house so that joint stays dry.
Older aluminum rooms and patio enclosures turn up all over Diamond Bar, often with leaky seams or a roof that's started to sag. We look at the frame and where the roof meets the house before we talk about new glass, and we fix what's underneath first.
Back yards that face open hillside bring in bugs and dust along with the view. A screen room keeps air moving and bugs out with less building than a glassed room, and we still set it on a base that won't shift.
Every service we offer
Sunroom additions
Four season sunrooms
Three season sunrooms
Patio enclosures
Custom sunrooms
Sunroom construction
Sunroom remodeling
Screen room installation
Patio-to-sunroom conversion
Deck-to-sunroom conversion
All season rooms
Enclosed patio rooms
Solarium installation
Patio cover installation
Sunroom design
Vinyl sunrooms
What happens when you call us about a Diamond Bar sunroom
Call and I'll come out
You call, and I come out myself to see the space, measure it, look at what the room will sit on and ask how you plan to use it. You get a written estimate that spells out what we'd build and what it sits on, so you can see what you're paying for before you sign anything.
We handle the city's paperwork
Once you sign, we check with Diamond Bar's building office about your address and take care of the paperwork it asks for. We keep you posted as it moves along, and building starts once the city gives the go-ahead.
We build, then walk it together
My lead installer runs our own crew on site, and we schedule the work around the inspections the city sets. When the room is done, I walk through it with you and go over what we built.
Diamond Bar sunroom questions answered
Do I need a permit to build a sunroom in Diamond Bar?
Plan on it, because Diamond Bar's Building and Safety Division issues building permits for putting up or changing any structure in the city, and patio covers need one too. The Planning Division reviews the plans first, then Building and Safety checks them against code in what it calls plan check, and new wiring for the room usually means an electrical permit alongside it. We check your address with the city and handle the paperwork it asks for.
Does a contractor from Chino need a business license to work in Diamond Bar?
Yes. Diamond Bar requires a city business license for anyone doing work inside city limits, contractors included, whether or not they have a building in the city. Applications are handled online, and the Planning Division takes questions about it at 909-839-7030.
How do I schedule a building inspection in Diamond Bar?
Call the city's Building and Safety inspection hotline at 909-839-7027 at least the day before the date you want. Leave the project address, the permit number and the type of inspection you need. Inspections run Monday through Thursday, 9 a.m. to 5 p.m., except holidays.
How much does a sunroom cost in Diamond Bar?
The price comes down to what the room sits on, how big it is and what goes into the walls and roof, so there's no honest number until someone has looked at your yard. A deck that needs new footings or a slab that has to be poured costs more than one that's ready, and full glass, insulated roof panels and wiring cost more than screens. Your estimate lays out each of those for your house.
When does a home addition in Diamond Bar need Planning Commission approval?
In Diamond Bar, every addition that grows the house by more than 50% needs Planning Commission approval, and so do some second-story additions. Most sunrooms add a lot less than that, but a big room on a small house can get close, so I check it against your house on the estimate visit.
How do I handle construction debris from a remodel in Diamond Bar?
Heavy debris jobs in Diamond Bar need a city-issued special limited-collection permit and a rented roll-off dumpster, and hauling off a large load can also take an encroachment permit from Public Works. Projects of 1,000 square feet or more have to recycle, reuse or divert at least 75% of their waste. This usually comes up when an old patio cover or enclosure is coming out, so we sort it out before any tear-out starts.
Get a free on-site sunroom estimate for your Diamond Bar home
Send the form or call (909) 413-6398, and we'll get back to you within one business day to set a time. I come out to your Diamond Bar house myself, measure, look at what the room would sit on and write up what we'd build. The estimate is free, with no pressure and no obligation.
- Call
- (909) 413-6398
- Location
- Chino, CA 91710
- Hours
- Mon–Fri: 7 AM–9 PM, Sat–Sun: 6 AM–9 PM
Talk to us about your Diamond Bar sunroom
Knowing what your deck or slab can carry before you pick glass or a roof keeps you from paying for it twice.




