Sunroom contractor in Mentone, CA - rooms planned around your septic system
Lightline Redlands Sunrooms & Patios builds sunrooms, patio enclosures and screen rooms for homes in Mentone, CA, from the base up, checking what your slab, deck and house wall can carry before we pick the glass.

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Services in Mentone, CA
Sunroom additions
A lot of Mentone houses have real room behind them, so a full addition on its own footings is often a better plan than squeezing a room onto an old slab. We frame it to tie into your roof and wall the way a real room should, then close it in.
Patio-to-sunroom conversion
Many back patios here already have a slab and a cover, and a patio-to-sunroom conversion makes sense when that slab is sound. I check its thickness and edges first, because walls and a roof put far more weight on it than a cover ever did.
Four season sunrooms
If you want a room you'll sit in in July and January, a four season room with insulated walls, roof and glass is the one we'd build. We plan the roof and glass around which way the back of your house faces, since afternoon sun on a west wall is what makes a glass room too hot to use.
Screen room installation
Homeowners here who mostly want to sit out in the evening without bugs often do better with a screen room than with glass. It costs less to build, and we set it on a solid base so it can take glass panels later if you change your mind.
Sunroom remodeling
Older aluminum enclosures around Mentone often leak at the roof joint or the tracks, or the panels have gone cloudy. We find where the water is getting in before we talk about new glass, because new panels on a bad roof joint just leak again.
Patio cover installation
Not everyone is ready to close in the patio, and a solid cover gives the back of the house shade now. We can size the posts and footings for a room later, if that's where you're headed.
Mentone, CA properties and local conditions
Most of Mentone runs on septic tanks and leach fields instead of a sewer line, though your own lot may be different, and that matters because the tank or the leach lines are often right off the back of the house where the room wants to go. Footings dug through a leach line or a slab poured over a tank lid are repairs you'd be paying for long after the room is done. So before I sketch a footprint, I ask what you know about your system, look for the tank lid and cleanouts, and we lay the room out to stay off it, even if that means shifting it a few feet or changing its shape.
The other thing I watch for here is water. Plenty of back patios were poured flat or even tipped toward the house, and once you put walls on a slab like that, rain that used to run off ends up inside the tracks. We set the base so water moves away from the house, seal the bottom track, and tie the roof in where the flashing can do its job.
Building in Mentone means working with the county
Mentone isn't its own city, so the building permit for a sunroom comes from San Bernardino County's Building and Safety office, whose permit list covers additions and alterations, patio covers and new structures over 120 square feet. We take care of that permit on our jobs and the contract says so in writing, and your start date waits on the county signing off, so the schedule turns on that review and on how much of the base we have to build new. The county doesn't issue a business license for contractors working in its unincorporated areas, so the license to check is the state one, which you can look up with the Contractors State License Board. We're licensed and fully insured. Price moves mostly on the size of the room and whether your slab or deck can carry it, and the written estimate lists what's in it and what isn't.
We're a sunroom contractor based in Redlands, CA, and Mentone is close enough that I can stop by a job here on short notice. When a house sits near Redlands East Valley High School, we set lumber and glass deliveries for the middle of the day so the trucks aren't caught in drop-off and pickup traffic. The same planning carries over to the jobs we do in Yucaipa and Calimesa.
Get a written estimate for your Mentone sunroom
We get back to you within one business day, and I'm usually the one who answers. I come out to your Mentone house to measure and look at the base and the house wall, and the estimate is free with no obligation. You get it in writing, with what's included and what isn't spelled out.
(909) 488-7044What happens after you call us about a Mentone sunroom
Call or send the form
I'm usually the one who picks up, and we set a time for me to come out. If you know where your septic lid is, tell me then, because it shapes the layout from the start.
I measure and check the base
I measure, look at the slab or deck and the house wall, and ask how you plan to use the room, so it helps if you're home. You get a written estimate that lists what's in it and what isn't, so you know what the price covers.
We handle the county permit
We put the plans and paperwork through Building and Safety, and the build date waits on the county's approval. Nothing gets dug or framed until that permit is in hand.
Our crew builds, we walk it
Our crew lead runs the job day to day, and I stop by to check the base, the roof tie-in and the track seals before they're covered up. When it's done, we walk the finished room together.
Frequently asked questions
How do I get a permit for a sunroom in Mentone, CA?
You apply through the county, either with Building and Safety directly or through the county's EZ Online Permitting site. A property owner, a state-licensed contractor or an agent for either can pull the permit, and the paperwork has to be current each time. On our jobs we pull it ourselves, so it's one less thing on your plate.
How long does a sunroom permit stay valid in San Bernardino County?
A county permit expires if work hasn't started within 12 months of when it's issued, or if work stops for 12 months. The building official can grant a 180-day extension, but only when it's asked for in writing with a good reason. We plan the build so it starts inside that window.
Do I need a grading permit to build a sunroom on a sloped lot in Mentone?
You need approved grading plans from the county if the job moves 100 cubic yards or more of cut and fill, or disturbs a slope steeper than 2 to 1. Below that, the county still generally expects some erosion control before any digging, and if no grading plan or building permit is needed, a separate erosion control permit comes first. County pages don't all give the same figure, so we confirm your lot with Building and Safety when we measure.
Do I need a permit to replace the windows in an old sunroom in Mentone?
Probably yes, because a county permitting summary says a building permit is required for all window and exterior door replacements. That summary was written under an older building code, so we check it with the county before we order panels for a remodel.
What causes the cost of a sunroom to vary in Mentone?
The base moves the price most, because a room on a sound slab takes far less work than one that needs new footings laid out around a septic system. After that it's whether you want insulated glass and roof for year-round use or a lighter three season or screen room, how much it takes to tie the roof into your house, and whether you want power and lights. I write each of those into the estimate so you can see which choices drive your number.
How much can a contractor ask for as a down payment on a sunroom in California?
No more than $1,000 or 10 percent of the total contract price, whichever is less, under the state licensing board's rule for home improvement work. That rule covers all home improvement projects, so it applies to a sunroom in Mentone the same as anywhere in the state. If someone asks for more up front, that's a reason to stop and ask why.
About Mentone, CA
Mentone is an unincorporated community that sits between Redlands and the San Bernardino National Forest, along the route where the Santa Ana River Trail is proposed to run. Folks here know it by places like the Mentone Senior Center and Library and the high school, more than by any city line.
On our jobs we see a mix of older single-story houses with real back yards and newer houses on tighter lots, much like what we work on in Highland. Either kind usually has a patio slab or a deck off the back already, and somebody who wants a room they can use most of the year. The job almost always comes down to whether that base, and the ground under it, can carry a room, and that's where most of my planning goes.
Explore the services
Redlands, CA
Call about your Mentone sunroom
We answer weekdays until 11 PM and weekends from 6 AM, so you can call (909) 488-7044 after work or send the form whenever it suits you.




