Retrofit insulation in Cerritos CA - an older house that holds its temperature
Hot upstairs rooms and drafty walls in an older house usually mean thin or missing insulation. We find the gaps and fill them in order.
How do I add insulation to an older house in Cerritos?
Retrofit insulation in Cerritos means adding insulation to the attic or outside walls of a house that's already built, and at Caliber Cerritos Spray Foam Insulation we put it where it's thin or missing so your rooms stop losing heat in winter and soaking it up in summer.
Most calls start with a hot room upstairs, a drafty hallway or a power bill that keeps creeping up, and in an older house the cause is usually insulation that's thin, crushed or never went in at all. If the old fill up there is soaked or full of droppings, it has to come out first through insulation removal, because new material on top just keeps the problem.
The price moves with how much of the house needs work, how hard the attic and wall cavities are to reach, and what has to be fixed before any insulation goes in. The schedule turns on the city's approvals and its construction hours, and your written estimate gives you your own figure, step by step. The state licensing board licenses insulation contractors for this kind of work, and we're fully licensed and insured.
- Attics in existing homes, sealed first, then topped up where the old insulation is thin.
- Exterior walls in older homes, filled from inside or outside depending on access.
- Checks for old live wiring, air leaks and damp wood before any insulation goes in.
What happens when you call us about retrofit insulation?
Here's how a retrofit job runs with us, from your first call to the last look in the attic. I do the visit and the estimate myself, and our installers do the work.
Call or send a message
Call or use the form, and we'll get back to you to set up a visit. It helps to have the year your house was built and whether the attic, the walls or both feel like the problem.
I come out and measure
I go through your attic, walls or crawl space myself, measure the inches already up there and take photos. You get a written estimate that lists each step in the order we'd do it, with numbers that match the house you actually have.
Our installers do the work
Our installers protect your floors and belongings, then seal and insulate in the order the estimate lays out. Cerritos allows construction Monday through Friday from 7 a.m. to 6 p.m. and Saturday from 10 a.m. to 5 p.m., with Sundays and city-observed holidays off unless the city approves otherwise in writing, so we book inside those hours.
We go over it together
I check the finished work and walk you through it before we call the job done. Our work is satisfaction guaranteed.
Attic and wall insulation work from start to finish
These photos show the kind of work the trade does in attics and walls, from sealing gaps to blowing in loose fill. They're examples of the work, not pictures of a particular house.
An unfinished home interior with exposed wooden roof trusses and wall framing beneath the roof.
A garage with tan batt insulation fitted between exposed wall studs and a raised garage door.
A worker wearing protective gear uses a pink hose to blow insulation across an attic floor between wooden rafters.
Yellow fiberglass insulation fills the sloped ceiling between metal supports in an attic.
Pale green spray foam coats the underside of a roof between exposed wooden rafters.
Worker in a respirator sprays green foam insulation into wall cavities between wooden studs.
Get a written retrofit insulation estimate for your house
Send the form or call (562) 307-9067 with your home's age and whether the attic, walls or both need work, and we'll reply within one business day. I'll set up a free visit at your home, with no obligation.
(562) 307-9067Questions about retrofit insulation in Cerritos
These are the questions Cerritos homeowners usually ask before adding insulation to an older house. If yours isn't here, give us a call and I'll answer it.
How much does blown-in insulation cost around Los Angeles?
Blown-in insulation in the Los Angeles area usually costs about $1,600 to $3,600 per project. That's the area's going rate for blown-in work, and it doesn't cover drilling and filling walls. Your written estimate gives you the number for your own house, step by step.
How do I insulate existing walls without opening them up?
The common way is drill and fill, where small holes go in near the top of each wall cavity and the space is filled with blown-in insulation. It's fairly gentle on the house, and the holes get patched when we're done. Whether we drill from inside or outside is the choice covered above.
Who approves home improvement work in Cerritos?
In Cerritos, any home improvement project first needs approval from the city's Planning Division, and the Building & Safety Division issues permits for changes to existing homes. You can call the city's Department of Community Development at 562-916-1201 to ask what your job needs. Before we set a start date, we check with the city, and when a permit is required we handle the paperwork and the inspection.
What should I check before insulating an older home in Cerritos?
Check for knob and tube wiring that's still live, because federal installer guidance says it should be dammed off where possible or replaced with modern wiring before insulation goes in. If your house was built before 1980, lead safety rules can apply too, depending on how much of the inside and outside wall surfaces get disturbed. I look for the wiring on my visit and note the house's age on the estimate.
What causes an upstairs room to stay hot in an older house?
Usually it's attic insulation that's thin, crushed or missing, along with gaps around can lights, pipes and the attic hatch that let hot air through. Coverage that's deep in the middle and thin at the edges, or eave vents buried under old fill, makes it worse.
Is spray foam better than blown-in insulation for an older attic?
Usually not, unless your ductwork runs through the attic. Foam costs more and seals air while it insulates, which matters most when the ducts live up there, but sealing the gaps and topping up loose fill usually does the job for less.
Retrofit insulation in Cerritos and nearby cities
An attic retrofit here falls under California's state energy rules, which also cover attic sealing when a ceiling is altered or all-new ducts go in. We're based here and do the same work in Norwalk, Bellflower and other nearby cities.