Retrofit insulation in Montebello CA - more comfort without tearing up your rooms
Upstairs hot, rooms drafty, power bill climbing? We add insulation to your attic or walls while you keep living there.
How do you add insulation to a house that's already built?
Retrofit insulation in Montebello means adding insulation to the attic or exterior walls of a house you already live in. When we seal the gaps between the attic and your rooms first, it saves energy and brings the power bill down.
Most calls start the same way. The upstairs is hot by afternoon, the room over the garage is drafty or the power bill won't come down, and the house has been lived in for years. We're Reliable Montebello Insulation Services, licensed and fully insured. The state contractors board keeps its own license class for insulation work, so ask any installer you're considering about theirs.
The price mostly turns on a few things. One is how many inches are already up there. Others are how old the house is, how easy the attic is to reach, whether it's just the attic or the walls too, and whether old material has to come out first through insulation removal. The schedule depends on anything that has to be fixed before we start and on the permit check. Your written estimate lays out what we'd do and in what order.
- Attics in older houses that only have a few thin inches of insulation left up there.
- Exterior walls that were built empty, filled through small holes without tearing open the drywall.
- Old insulation that's soaked or full of droppings, which comes out before anything new goes in.
What happens when you call us about retrofit insulation in Montebello?
Here's how a retrofit job runs with us, from the first call to the walk-through at the end. The order matters, because anything that needs fixing gets handled before insulation goes in.
Call and set a time
Call (213) 491-1019 or use the form, and we'll set a time to come look at the space in person. Tell us how you get into the attic and anything you already know about, like vermiculite, a roof leak or knob and tube wiring, the old wiring that runs on porcelain knobs.
We look, then write it up
I or our lead installer goes into the attic or checks the walls, notes how many inches are already there and writes down anything that has to be fixed first. You get a written estimate that says what we'd do and in what order, so you know what you're paying for before any work starts.
We check permits first
Before we start, we check with the building office that covers your address, the city or the county. If the job needs a permit, we pull it and set up the inspections. California's Energy Code applies to changes to existing homes as well as new ones, so this is also when we go over how it affects yours.
We do it and walk it
Our own crew does the job. In Montebello the city's construction hours are 7 a.m. to 8 p.m. on weekdays and 9 a.m. to 6 p.m. on weekends and holidays. When we're done, we walk it with you so you can see the sealing and the coverage before we pack up.
What retrofit insulation looks like in attics and walls
These photos show the kind of work a retrofit involves, from sealing gaps on the attic floor to filling wall cavities through small holes. They show the trade in general, not one particular house.
Attic with loose white blown-in insulation across the floor beneath reflective roof sheathing and exposed wooden rafters.
Close-up of tan fibrous batt insulation packed between wooden framing members.
Worker in protective coveralls, respirator and gloves uses a vacuum hose to remove loose insulation from an attic.
Crawl space with a white vapor barrier covering the floor, pink insulation between joists, and black ductwork overhead.
Unfinished room with exposed wood framing and pale spray foam insulation filling the wall cavities.
Foil-wrapped ducts run through an attic beneath spray foam insulation, secured among exposed wooden rafters.
Get a written retrofit insulation estimate for your house
We reply within one business day, and the on-site visit and quote are free with no pressure to book. After you send the form, we set a time to look at your attic or walls in person.
(213) 491-1019Questions Montebello homeowners ask about retrofit insulation
These are the questions people ask me most about adding insulation to a house they already live in. If yours isn't here, ask it when we come out to look.
How much does it cost to add insulation to a house around Los Angeles?
Adding insulation in the Los Angeles area usually costs about $1,600 to $5,000 per job. That's the going rate around here, not our price. Where your house lands depends on the things covered above, like how much is already up there and whether the walls are part of it. Your own figure comes in the written estimate after we've seen the space, and our work is satisfaction guaranteed.
Can my walls be insulated without opening them up?
Usually, yes. The common way is drill and fill, blowing loose fill into each wall cavity through small holes near the top. Filling from outside cuts through the wall's water barrier, which then has to be patched or replaced. Filling from inside leaves that barrier alone. Which route fits your house comes down to how we can get in and what shape that barrier is in.
What needs to be fixed before attic insulation goes in?
A leaking roof, live knob and tube wiring, vermiculite insulation and bathroom fans that vent into the attic all need to be dealt with before sealing and insulating. The same goes for an unvented kerosene heater or gas fireplace. None of these has to be scary. They just come first, and then we seal and insulate.
What should I do if my attic has vermiculite insulation?
Leave it alone. The EPA says to treat vermiculite as if it contains asbestos and to use a trained professional if it has to come out. We won't seal or insulate over it until that's been handled.
What causes a hot upstairs when the attic already has insulation?
Usually it's air leaking through gaps the insulation was laid over, around can lights, pipes, wires and the attic hatch. In that case the insulation is fighting a draft it can't stop. Older can lights that aren't rated to touch insulation also need a cover before anything goes over them.
How long does retrofit insulation take, and do we have to leave the house?
With loose fill in the attic or walls, most families stay home while we work. How long we're there depends on the size of the house, how hard the attic is to reach and what has to be fixed first. Foam is different. If your job uses it, we'll tell you the re-entry time, which is when it's safe for kids and pets to come back in.
Retrofit insulation in Montebello and the cities around it
Montebello's Building and Safety Division, at (323) 887-1497, wants permit questions asked before any project, so we make that call before your job starts. We're based here and insulate older houses across the cities around it.