Insulation Contractor in Lennox, CA - Attics Sealed First, Then Insulated
Evergreen Lawndale Spray Foam Insulation is an insulation contractor working in Lennox, CA. We seal and insulate attics, walls and crawl spaces, pull out old dirty insulation, and go after the rooms that run hot or drafty.
- Fully licensed and insured.
- Free estimates at your property.
- We respond within 1 business day.
Lennox houses, tight lots and the attics above them
Lennox is a close-packed neighborhood bounded by Century Boulevard, the 405 and the 105, with Inglewood across Hawthorne Boulevard and Prairie Avenue and Hawthorne just south across the freeway. Most of it is small single-story houses on tight lots, many with a back unit or a converted garage, and small shops line the main boulevards. Houses here have usually been added onto more than once, so one roof can cover two or three different eras of framing.
Those compact houses tend to have low attics with a hatch in a closet or hallway and not much room to crawl, and some sit on raised floors over a crawl space. That shapes the job, because we often clear and seal before anything new goes in, and loose fill blown through a hose reaches the corners nobody can crawl to.
Insulation services we do on Lennox homes
Spray foam insulation
When ductwork runs through a low Lennox attic, foam under the roof deck seals and insulates at once and brings those ducts inside the insulated space.
Attic insulation
Many Lennox attics hold thin, flattened batts or a few inches of old fill, so we seal the gaps first and build even depth out to the eaves.
Blown-in insulation
Blown-in fill suits the low, cramped attics common here because the hose reaches corners a person can't crawl to, and it fills in around wires and blocking.
Home insulation
When a Lennox house has a hot back bedroom, drafty front room and high power bill, we check attic, walls and floor together and rank the fixes.
Insulation removal
Older attics here often hold insulation that's dusty, soaked or full of droppings, and we pull it out first because new material on top just keeps the problem.
Crawl space insulation
Raised-floor houses here can feel cold underfoot, and once any damp is fixed we insulate between the floor joists from the crawl space below.
Wall insulation
Older stucco houses in Lennox often have empty or half-filled walls, and we can fill those cavities through small holes that we patch afterward.
Air sealing services
Air sealing, closing the gaps before any insulation goes in, matters in houses here that have been added onto, because old joints and patches tend to leak.
Basement insulation
True basements are rare in Lennox, but when a house or small building here has a room below ground level, we insulate its walls after checking for moisture.
Closed-cell foam insulation
Closed-cell foam, a dense foam that also blocks moisture, fits tight spots here like a damp-prone crawl space wall or a thin roof over a converted garage.
Open-cell foam insulation
Open-cell foam is softer and lighter, and it works well filling odd wall cavities and rooflines on Lennox additions where moisture isn't the worry.
Commercial insulation
Small shops and offices along the boulevards here get the same careful order, sealing then insulating, with the work planned around business hours.
Crawl space vapor barrier
A plastic ground cover in the crawl space keeps damp from the soil off the framing, and under older Lennox houses we lay it before any floor insulation.
Vapor barrier installation
On garage conversions and bathroom additions in Lennox, a vapor barrier in the walls and ceiling keeps moisture from the room out of the insulation.
Attic air sealing
Before we add anything to a Lennox attic, we seal around can lights, pipes, wires and the hatch, so the new insulation isn't fighting a draft.
Retrofit insulation
Retrofit work adds insulation to a finished Lennox house without gutting it, filling closed walls and topping up attics while you keep living there.
Get a free written insulation estimate for your Lennox home
Send the form and we'll reply within one business day to set up a visit. The estimate is free, done at your home, and there's no pressure to book.
(424) 528-1317- Based in
- Lawndale, CA 90260
- Hours
- Mon–Fri: 7 AM–9 PM, Sat–Sun: 6 AM–9 PM
What working in Lennox means for permits and licenses
Lennox is an unincorporated part of Los Angeles County, so there's no city permit counter here, and building permits come from LA County Public Works. Before we start, I check with the county for your address, and if a permit is needed we handle the paperwork and the inspection, which means the start date waits on the county rather than on our calendar. You can check the contractor side yourself, since California requires a state contractor license for much of this work and we're fully licensed and insured. A business based in an unincorporated area like Lennox may also need a county business license for some kinds of work, so it's fair to ask about that too.
Lennox is a short drive up from our base in Lawndale, and tight driveways and street parking usually decide where the truck sits and how far the hose has to run. What moves the price is how much old insulation comes out first, how many gaps need sealing, whether the job calls for foam or loose fill, and how low and cramped the attic is, and anything that has to be fixed first, like damp or old wiring, moves both the price and the start date. Your written estimate lays those steps out in order for your house, and we do the same work across the South Bay, down to Redondo Beach.
What we find in Lennox attics and crawl spaces
A lot of Lennox houses have been standing for decades, and the insulation in them has had time to flatten, get pushed around by cable and wiring work, or collect droppings, so the attic often holds only a few inches where it should hold much more. We check what's up there before quoting, pull out anything soaked or dirty instead of covering it, keep the eave vents clear so the attic can still breathe, and build the depth evenly out to the edges, where old jobs tend to run thin.
Plenty of houses here sit on raised floors, and damp ground in the crawl space leaves the floors above cold and the framing wet. We fix the water first, lay a ground cover, and only then insulate under the floor, because insulation over a wet crawl space just holds the problem in place.
How an insulation job runs when you call us in Lennox
From your first call to the final walk-through, here's who you'll deal with, what you'll get in writing and when you need to be home.
Call or send the form
Call (424) 528-1317 or send the form, and we'll set a time for me to come out. Plan to be home for the visit so I can get into the attic, walls and crawl space.
I look before I quote
I come out myself, measure, and note anything that has to be handled before insulation goes in, like old wiring, damp spots or fill that looks like vermiculite. If something looks unsafe, I stop and check it instead of disturbing it, because I'd rather tell you a job isn't ready than do it twice.
Read your step-by-step estimate
You get a written estimate that lists each step in the order we'll do it, so you can see what you're paying for before you decide. If you go ahead, we line up any permit the job needs and then book the crew.
We install, then walk through
Our crew does the install with me on site, sealing the gaps before any insulation goes in, and with spray foam you'll be out of the house while we work. When we're done, I walk through the finished job with you.
Insulation contractor questions in Lennox, CA
Does attic insulation need a permit in Lennox, CA?
The county's permit list doesn't name insulation on its own, so we check your address with the county before any work starts instead of guessing. Its list covers alterations, repairs, replacements and electrical, plumbing or mechanical work, and that's what we hold your job up against. You can see which office handles your address with the county's Service Locator by typing in your street address.
How do I know if an insulation contractor needs a license in California?
A contractor needs a license from the Contractors State License Board when the job needs a building permit, uses any additional workers, or costs $1,000 or more in labor and materials. A bigger job can't be broken into smaller pieces to slip under that $1,000 line, so ask for the license before you sign anything.
How much does it cost to insulate an attic in Lennox?
The cost comes down to what's already in your attic and what has to happen before new insulation goes in, so I give you a written price after I've been up there. Foam costs more than loose fill because it seals air while it insulates, and in most attics sealing the gaps and topping up loose fill is the better use of the money, unless your ductwork runs through the attic, where foam earns its cost.
How long does attic insulation take in a Lennox house?
Most of the time on an attic job goes into the prep, pulling old material and sealing gaps, rather than putting in the new insulation, so an attic that's clean and only needs a top-up is the quickest kind. When old insulation is soaked or full of droppings, removal adds a step, and your estimate shows each step in order so you know what's involved.
Do we have to leave the house during spray foam insulation?
Yes, with spray foam you, your kids and your pets stay out while we spray and until the re-entry time, the wait before you can come back in, has passed. I tell you that time before the job is booked so you can plan around it, and with loose fill most families stay home and just keep clear of the attic hatch.
What causes the room over the garage to run hot or cold in a Lennox house?
Usually the room was built from a garage or onto one with thin or missing insulation in the ceiling and walls, and air from the garage leaks in around the edges. We seal those gaps first, then insulate the ceiling and walls, and the floor too when there's still a garage underneath.
Lawndale, CA
Get your Lennox attic looked at
If you're not sure whether your attic needs a top-up or a cleanout first, one visit answers it, with satisfaction guaranteed on every job.