Insulation contractor in Manteca, CA - attics sealed before they're topped up
Precision Ceres Insulation Services insulates attics, walls and crawl spaces in Manteca, CA. We clear out bad old material, seal the gaps and add insulation where your house leaks heat in winter and cool air in summer.

- Licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
Older houses and newer tracts across Manteca
Manteca runs from older houses near the middle of the city out to newer tract neighborhoods on its edges, with a good number of rentals in both. The older places often have a few inches of settled insulation in the attic and nothing under the floor, while the newer ones usually have decent depth but leak air around can lights, the hatch and the room over the garage. The calls we get here sound a lot like the ones from Ripon next door, a hot upstairs, cold floors and a power bill that keeps climbing.
The ground matters as much as the house. The city keeps a floodplain map for its planning area, so on a lot that falls inside it I look hard at the crawl space for damp soil and wet insulation before we cover anything under your floors.
What to check before an insulation job in Manteca
For work that changes structure, wiring, plumbing or mechanical systems, the City of Manteca's Building Division issues the building permit, and that adds an application and an inspection to the schedule. If your job needs one, we handle the application and set up the inspection, and I'll talk it over with you at the estimate. Before you hire anyone here, check two things, the contractor's state license and their City of Manteca business license, which the questions below cover. We're licensed and insured.
What moves the price is mostly what I find once I'm up there. The size of the attic, how easy the hatch is to reach, how many inches are already down, whether old material is wet or full of droppings and has to come out first, and whether ducts run through the attic all change the job. The schedule turns on the same things plus any permit, and in summer we start early because a Valley attic gets too hot to work in by afternoon. It's the same fix-first order we follow on a house in Keyes or anywhere else we work, and your written estimate gives you the figure for your house.
A written insulation estimate for your Manteca house
Send the form or call (209) 225-2797, and we'll get back to you within one business day to set up a visit. I'm usually the one who comes out to your Manteca house, and the estimate is free, in writing and comes with no pressure to book.
Call (209) 225-2797Services in Manteca, CA
Insulation removal
Older Manteca attics, and rentals between tenants, often turn up insulation that got soaked or filled with rodent droppings. Our insulation removal clears it out and cleans the space, because fresh material laid on top just hides the problem.
Attic air sealing
Gaps around can lights, plumbing pipes and the attic hatch let hot attic air straight into the rooms below. Attic air sealing, closing those gaps before any insulation goes in, keeps the new insulation from fighting a draft.
Blown-in insulation
Many houses here have settled down to a few inches, piled deep in the middle and thin at the edges where it counts most. We top it up with blown-in insulation, loose fill blown through a hose, and keep it even out to the eaves without burying the vents.
Spray foam insulation
When the ductwork runs through a hot attic or the room over the garage won't stay comfortable, foam can be worth its higher cost because it seals air while it insulates. Where that isn't the case, I'll usually tell you sealing the gaps and topping up loose fill is the better buy.
Crawl space vapor barrier
Cold floors usually trace back to a damp crawl space with nothing under the floor. We put a vapor barrier down over the soil to keep ground moisture out, then insulate once the space is dry.
Wall insulation
Some of the older houses near the middle of Manteca have little or nothing in the outside walls, which is why those rooms feel drafty whatever the thermostat says. I check the walls at the estimate, and we fill them where it makes sense for the house.
How it goes when you call us about a Manteca house
Call or send a request
Tell us what you're noticing, a hot upstairs, cold floors or a high power bill, and we set a time to come look. Someone needs to be there to let me into the attic and crawl space, and for a rental that can be the tenant or the property manager.
I look over the space
I go up in the attic and under the floor, measure the inches already there, and take notes and photos of any leaks, old wiring or droppings. You get a written estimate that lists what has to be fixed first apart from the insulation work, so you know what you're paying for before anything starts.
We prep and install
Once you say go, we take care of any permit, clear out what has to go, seal the gaps and put the new insulation in. Our install crew does this part, and they keep the eave vents open so the attic can still breathe.
We walk the finished job
Before we pack up, I walk the finished space with you and check it against the estimate line for line. Satisfaction guaranteed.
Common questions
Do I need a permit to insulate my attic in Manteca?
The city's permit list doesn't name insulation on its own, so whether you need one usually turns on what else the job touches, such as wiring, plumbing, ductwork or framing. Changes like those are the kind the city's Building Division permits, and you can ask it about your house directly. I'll tell you at the estimate how your job looks.
Does an insulation contractor need a business license to work in Manteca?
Yes, every contractor and subcontractor working inside Manteca city limits needs a valid City of Manteca business license. The city treats it as an annual tax and requires it even for temporary or one-time work, so a crew in town for a single job isn't exempt. Ask anyone you're considering to show you theirs.
When does a contractor need a state license in California?
A contractor needs a license from the California Contractors State License Board when the project needs a building permit, uses employee labor, or costs $1,000 or more in labor and materials together. They have to hold that license before they bid on your job, not after you sign. Anyone selling home improvement contracts for a licensed contractor also has to register with the board.
How much does attic insulation cost in Manteca?
It depends mostly on what's already up there and what has to be fixed before new insulation goes in, so I don't quote it over the phone. Topping up clean, dry insulation after sealing the gaps is usually the less costly route, while pulling out soaked or dirty material or choosing foam raises the price. Your written estimate lists the prep apart from the insulation work, so you can see what each part costs.
What causes the upstairs to stay hot in a Manteca house in summer?
Usually it's thin or uneven attic insulation plus open gaps that let attic heat push down into the rooms below. The room over the garage is often the worst, because it has unheated space on more than one side. Air sealing those gaps and then evening out the insulation is usually what fixes it.
How long before we can go back in the house after insulation?
With blown-in or batt insulation, most families stay home while we work and just keep kids and pets away from the attic hatch. Spray foam is different, because the foam maker sets a re-entry time, how long before you can come back inside, and we plan the job and your day around it. I'll give you the wait for your job at the estimate.
Have us look at your Manteca attic
If a rental is turning over, call (209) 225-2797 or use the form, since an empty house is the easiest time to clear out and redo an attic.




