Sunroom Contractor in Montclair, CA - Rooms That Stay Dry and Get Used
Sunhaven Ontario Sunrooms & Patios builds sunrooms, patio enclosures and patio covers in Montclair, CA. We're based in Ontario, and we turn the slab patio behind your house into a room that stays dry and gets used.
Single-story homes across Montclair
Montclair sits right next to Upland and our own city of Ontario. Most of the calls we get here come from single-story houses on regular lots with a slab patio out back. A lot of those patios already have a cover that went up years ago, and the owner finally wants to close it in and use the space every day instead of just on mild evenings.
That's what shapes the job here. Most of what we do in Montclair starts at the slab and the back wall of the house, because that's where an add-on room either holds up or starts to leak.
Working in Montclair: permits, licenses and what moves the price
In Montclair, the city's Building Division issues the building permit, checks the plans and sends an inspector out while the room goes up, and most permits are pulled in person at the counter at City Hall. The plan check comes before any building starts, so the city's review sets the early part of the schedule more than we do. When a job needs a permit, we draw the plans, file them and schedule the inspections. You can also check two things on any contractor here. The city lets a properly licensed state contractor pull the permit if they show the pocket card of that license and proof of workers' comp coverage, and every business working in Montclair has to hold a city business license that's good for one year. Ask to see both. We're fully licensed and insured, we've been building sunrooms since 2013, and our work is backed by our satisfaction guarantee.
Price here mostly comes down to the size of the room, whether your slab can carry walls and a roof or needs new footings, glass or screen, and whether you want power, lights or heating and cooling, which brings licensed trades in. Your written quote spells out what's included, so you can see where the money goes before you sign. We do the same work over in Chino Hills and Pomona, but Montclair's flat lots and older slabs make the base the first thing we talk about here.
Services in Montclair, CA
Patio-to-sunroom conversion
Most Montclair calls start with a slab patio that already has a cover on it, and the owner wants walls and windows around it. Our patio-to-sunroom conversion work starts by checking whether that slab and cover can carry a real room, because a lot of them were built for shade and nothing more.
Patio enclosures
If you want the patio closed in without making it a full room, an enclosure keeps out dust and bugs for less work. We seal it tight where it meets the house so the first big rain stays outside.
Sunroom additions
The regular lots here usually leave room to add a true room off the back without crowding the yard. We frame it like the rest of the house, tie it into your wall and set it on footings sized for it.
Patio cover installation
Plenty of the old covers we see in Montclair are sagging, rusted or pulling away from the fascia, the board along your roof edge. We replace them with a cover that's attached right and sheds water away from the house, and you can enclose it later if you want.
Four season sunrooms
Owners who want to use the room in July and January ask for insulated walls, better glass and heating and cooling. We bring in licensed electricians and heating and cooling trades for that part, so the room works like the rest of the house.
Sunroom remodeling
Some Montclair houses already have an older add-on room that leaks at the roof line or sits on a slab that's settled. We find where the water's getting in and fix the joint with the house before we touch any finishes.
What Montclair houses ask of a sunroom
The slab is the first thing I look at, because most patio slabs here were poured for a barbecue and some chairs, not for walls, glass and a roof. If yours is cracked, thin or sloped toward the house, I'll tell you, and we'll set new footings or pour a new base instead of building on something that's going to move. An extra hour there beats a cracked wall later.
Water is the other one. For permitted work, the city's design criteria plan for rain as heavy as 2 inches an hour, so the roof pitch, the gutters and the flashing where the room meets your house all have to handle a real storm. We spend our time on that joint, because a leak is a bad way to break in a new room.
Get a written sunroom quote for your Montclair home
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 Montclair house. The estimate is free, on-site and obligation-free, and after I measure and look over your slab or cover, you get a written quote that spells out what's included.
How a Montclair job goes
Call us or send the form
Call (909) 738-1566 or use the form, and I'll set a time to come out. Plan to be home for the visit so you can show me how you want to use the room.
I measure and check the base
I measure, look at the slab, deck or cover the room will sit on, and ask how you'll use it. Then you get a written quote that spells out what's included, so there's no guessing what the number covers.
We file plans with the city
Once you sign, we draw the plans and take them to the city, which checks them before any building starts. That review takes time, and we keep you posted while it runs.
We build it and walk it
Our own crew does the building, with licensed electricians and heating and cooling trades where the job needs them, and we schedule the city's inspections along the way. When it's done, we walk the finished room with you.
Montclair sunroom questions answered
Do I need plans to add a sunroom to my house in Montclair?
Yes, the city asks for three sets of detailed plans for a room addition, covering floor plans, elevations, framing and any electrical, mechanical and plumbing work, and each submittal carries a plan check deposit. A qualified draftperson can usually draw plans for a room addition, though larger projects may need plans signed by an architect or engineer licensed by the State of California. When we build it, we prepare the plans as part of the job.
Can I pull my own permit for a sunroom in Montclair?
Yes, if you're doing the work yourself, the city offers an owner-builder permit. You sign a form saying you're exempt from workers' comp insurance, and you agree to follow those rules if you later become subject to them. If we build the room, we pull the permit, so you don't need one.
What building code does Montclair use for sunrooms and room additions?
Montclair builds to the current California Building Standards Code, and for houses that means the California Residential Code, with some local changes the city added. We draw and build to that code, and the city's inspector checks the work against it.
How do I find out if my house in Montclair is on sewer or septic?
You can ask the city for your address's building permit records through a Public Records Request, online or at City Hall, and any permits for a sewer connection come back to you. It helps to know where that line runs before we dig footings or add plumbing to a new room.
How much does a sunroom cost in Montclair?
Your price comes down to the size of the room, what it sits on, the walls and roof you pick, and whether it gets power and heating and cooling. A slab that can already carry walls keeps the cost down, while new footings or a new base add to it. I'll give you a written quote once I've seen the job.
What is the best way to turn a covered patio into a sunroom in Montclair?
Start by checking the slab and the cover, because a lot of patio covers here were built for shade and won't carry walls, glass and a heavier roof. If they hold up, we build on them. If they don't, we replace the cover or pour footings first, then send the plans to the city before the crew starts.
Plan your Montclair sunroom with one call
We pick up weekdays until 11 PM and weekends until 9 PM, so you can call (909) 738-1566 after work or use the form whenever it suits you.
