Precision Ceres Insulation ServicesPrecision Ceres Insulation Services

Air sealing services in Ceres CA - fewer drafts and a house that still breathes safely

Drafty rooms, a hot upstairs and a high power bill usually trace back to gaps. We find them, check your vents and seal them.

Exposed wooden attic framing beneath a ceiling coated in white spray foam insulation.
  • Licensed and insured.
  • Free in-person estimates.
  • Expect a reply within 1 business day.

Should I get air sealing before new insulation in Ceres?

Air sealing closes the gaps that let outside air into your Ceres home, around pipes, wiring, can lights and the attic hatch. At Precision Ceres Insulation Services, we do it so your rooms feel less drafty, your heating and cooling don't strain as hard, and less moisture gets in to warp wood or feed mold.

If you're planning new attic insulation, the sealing goes first, because insulation sits on top and hides every gap you didn't close. The price and the schedule turn on how many leaks there are and how hard they are to reach, whether something has to be fixed before we seal, and whether new insulation or patching follows. I look over the space before I price anything, and your written estimate lists the prep work apart from the sealing and insulation work, so you can see where your number comes from.

How can you tell your house is leaking air?

  • Drafts at outlets and trim

    On a windy day you feel air moving at outlets, baseboards or around the attic hatch. That's usually a gap where a wire or pipe passes through, and until it's closed you're paying to heat and cool air that leaks straight out.

  • Hot upstairs, cold floors

    The upstairs or the room over the garage never matches the thermostat, and the floors feel cold in winter. Attic air coming in through ceiling gaps and crawl space air coming up through the floor are the usual causes, and the system runs longer every day you wait.

  • Dust streaks or damp spots

    You see dark streaks at the carpet edges or in the attic insulation, or you smell something musty in the attic or crawl space. Air moving through a gap carries dust and moisture with it, and damp framing left alone turns into repair work on top of the sealing.

  • Basement insulation

    When the cold is coming up from below, insulating the lower level after the gaps are closed keeps it from pulling heat out of the rooms above.

  • Closed-cell foam insulation

    Where ductwork runs through the attic or a spot stays damp, dense foam can seal and insulate in the same pass.

How we handle air sealing services

Before we close up any drafts, we check how your furnace, water heater or fireplace vents, because a tighter house still has to breathe safely. Leaks, old wiring and moisture get sorted out next, since sealing and insulation cover up whatever is under them. Then our crew seals the gaps that actually leak, around can lights, pipes, wiring, the hatch and the tops of the walls, and leaves the soffit, ridge and gable vents and any combustion air ducts open, because those openings are there on purpose and need air moving through them to do their job. If we move insulation to reach a gap, we put it back before we leave.

  • Sealing only

    This suits a house with a decent depth of insulation already up there. We seal the leaks and put the existing insulation back, so you're not paying for material you don't need.

  • Sealing, then new insulation

    This suits an attic that's thin or patchy. We seal first and then add blown-in insulation, which is loose fill blown through a hose, so the new layer isn't fighting a draft.

  • Crawl space and floor sealing

    This suits houses with cold floors or air coming up from underneath. We close the gaps where pipes and wires come through the floor before anything else goes in down there.

Get a written air sealing estimate for your Ceres home

We reply within one business day to set up a free visit, with no pressure to book. I look over the space and write down what I find. You can call (209) 225-2797 instead.

Call (209) 225-2797

Why Ceres homeowners call Precision Ceres Insulation Services for air sealing

  • The estimator checks the work

    I'm usually the one who comes out and writes the estimate, and after our install crew does the work, I check it with you before we pack up. You're talking to the person who saw your attic, start to finish.

  • Repairs before anything's covered

    I spent years doing upkeep for a property management company, and attic and crawl space problems were the ones I kept going back to fix. I started this business in 2017 to do that work properly the first time, which is why landlords and property managers call us too.

  • Licensed and insured for this work

    We're licensed and insured. In California, adding insulation falls under the state licensing board's insulation contractor class, so when sealing comes with new insulation, that's the license to ask any contractor about.

  • Based in Ceres, working nearby

    We're based in Ceres and work across the cities around it, from Modesto and Salida up to Manteca and Ripon and down through Turlock, Delhi and Livingston. If your city isn't named on the site, ask us.

On this job the order matters more than anything, so send us a request or call (209) 225-2797 and I'll look over the space before anything gets sealed.

What happens when you call us for air sealing in Ceres?

  1. Call or send a request

    Call (209) 225-2797 or use the form, and we'll get back to you to set up a visit. Let us know if it's a rental, so we can work out access with you or your tenant.

  2. I look over the space

    I check the attic or crawl space, your gas appliances and what's already up there, and I take notes and photos. Your written estimate lists what has to be fixed first apart from the sealing and insulation work, so you know exactly what you're paying for.

  3. Permit, prep and sealing

    Once you say go, we take care of any permit the job needs, including the application and the inspection. Then our crew handles the prep and the sealing in the order the estimate lays out.

  4. We walk it together

    I walk the finished space with you and check the work against the estimate, line for line, before we pack up. Satisfaction guaranteed.

Common questions

  • Does insulation stop air leaks in my attic?

    No, insulation slows heat moving through, but loose fibrous insulation on its own isn't a dependable barrier against air leaks. Air keeps moving through it wherever a gap sits underneath, which is why the sealing goes in before any new insulation.

  • How much does air sealing cost in Ceres?

    Across the US, air sealing on its own, without insulation, usually costs about $500 to $1,500 per job. Hard-to-reach work, testing, new insulation and patching afterward can add a good deal to that, and your written estimate shows each of those as its own line.

  • Will air sealing make the air in my house unsafe?

    Not when the job is planned properly, because how much fresh air your house needs gets worked out before any gaps are closed. Once a house is sealed up, some homes need mechanical ventilation added, like a fan system that brings in fresh air, and I'll tell you at the estimate if yours looks like one of them.

  • Do I need a permit for air sealing in Ceres?

    Ceres requires a building permit for almost any work on a structure beyond cosmetic improvements, and its list doesn't name air sealing, so check your job with the city's building permits office. Replacing a water heater or a heating or air conditioning unit is on the city's list of common projects that need a permit, so plan for one if you're pairing sealing with new equipment. We'll talk it over with you at the estimate.

  • How do I find the air leaks in my house?

    Certified home energy auditors find them with a blower door test, a fan set in an outside doorway that pulls air through the leaks, and a thermal camera that shows where outside air is getting in. Ask whether that testing is part of any estimate you get, because it shows where the leaks actually are.

  • How do I get my attic ready for air sealing?

    Start by looking for active knob and tube wiring, which is old wiring run on porcelain knobs, vermiculite insulation, roof leaks and bathroom fans that vent into the attic instead of outside, because one attic sealing guide has all four found before any work starts. I look for them when I come out, and I'll tell you plainly if one of them needs someone other than us.

Book your air sealing estimate in Ceres

Call (209) 225-2797 or send a request with a list of your gas appliances, like the furnace, water heater and fireplace, plus any roof leaks or bath fans you know vent into the attic, so the first visit covers what matters.

(209) 225-2797Request a quote