Bel Air South Spray Foam InsulationBel Air South Spray Foam Insulation(410) 836-5406
Bel Air South Spray Foam Insulation
(410) 836-5406Get an estimate

Air sealing services in Bel Air South MD - an attic floor with the leaks closed

Hot upstairs, cold floors or a drafty room over the garage? We close the gaps in your attic floor so your house holds its air.

Get an estimate(410) 836-5406
Close view of foam sealing the spaces between exposed wooden ceiling joists.

What does air sealing fix in a Bel Air South house?

Air sealing in Bel Air South closes the leaks between your living space and the attic, the holes around pipes, wires, flues and light fixtures, using caulk, one-part spray foam or solid blocking, so the air you pay to heat and cool stays in your rooms.

Most folks call me because the upstairs runs hot, the floors stay cold or the power bill keeps creeping up, and they figure they need more insulation. Sometimes they do, but insulation slows heat, not air, so if the attic floor is full of holes, warm air rides right past it like it isn't even there.

What moves the price is mostly what's in the way: how cramped the attic is, how much old insulation has to be pulled back to reach the leaks, how many flues, chases and can lights need work, and whether a roof leak or a bath fan has to be fixed first. The schedule turns on the same things, plus whether we're sealing ahead of new attic insulation, and my written estimate spells out your own job. We're licensed and fully insured, based in Bel Air South, and we work across Harford County and into nearby Baltimore County.

  • Older can lights we cover will need bulbs other than incandescent or halogen, because heat builds up under the cover.
  • Wet, moldy or droppings-filled insulation gets dealt with before we seal, so the problem doesn't get buried.
  • Most of the work happens from the attic, so a clear path to the hatch or pull-down stairs helps.

What happens when you call us about air sealing in Bel Air South?

Here's how a job goes from your first call to the last look at the attic. I'm the one who comes out and talks it through, and our installers do the work.

  1. Call or send us a note

    Reach us at (410) 836-5406 or through the form, and we'll set up a time for me to come take a look. It helps if you can tell us your house's age, how you get into the attic and whether you're planning new insulation.

  2. I look the attic over

    I come out myself, check the attic floor and ask a lot of questions, starting with old knob and tube wiring, the cloth-wrapped kind on ceramic posts, plus vermiculite fill, roof leaks and bath fans that blow into the attic, because those get sorted out before anyone seals over them. You get a written estimate that lays out what I'd do first and why, so you can see exactly what you'd be paying for.

  3. Our installers seal the leaks

    Our installers do the work in the order we agreed on, sealing first and covering second. If something turns up that needs an electrician, plumber or heating contractor, we bring in a licensed trade for that part.

  4. We walk the finished job together

    I check in while the work is going on and go over the finished attic with you before we leave, pointing out what we sealed and what we left open on purpose. Satisfaction guaranteed on every job.

How we handle air sealing in your attic

We start at the attic floor itself, pulling back old insulation where we need to so we can actually see the holes. Our installers go after the hidden gaps around pipes, wires and flues with caulk or one-part spray foam, put solid blocking over bigger openings like the open tops of dropped ceilings over kitchen cabinets, and wrap hot flues with metal and a collar, because foam has no business touching a hot pipe. Older can lights that aren't rated to sit in insulation get covers, and the hatch gets sealed so it stops acting like a chimney. What we leave alone matters just as much, since soffit, ridge and gable vents and any combustion air duct are meant to stay open, and an attic that can't breathe ends up with damp framing.

Air sealing is usually one piece of a bigger plan, and I'd rather you hear the trade-off from me up front. Foam like closed-cell foam insulation costs more and seals air while it insulates, but for most attics, sealing the gaps and topping up the loose fill is the better buy, unless your ductwork runs through the attic, which is when foam earns its price. Cold floors and a chilly lower level often trace back downstairs, where basement insulation picks up what attic sealing can't reach.

  • Seal the gaps, then top up the loose fill

    This suits most vented attics where the ducts live downstairs, because once the leaks are closed, the insulation you already have starts pulling its weight. A top-up of blown-in insulation, loose fill blown through a hose, then covers the thin spots, especially out at the edges where coverage tends to come up short.

  • Spray foam when the ducts are up there

    This suits houses with furnace or AC ductwork running through the attic, since foam seals and insulates in one layer and can bring those ducts inside the protected space. It costs more and takes more planning, so I only point you here when the ducts make it worth it.

What air sealing looks like inside an attic

These photos show the kinds of spots we seal in a typical attic, like the gaps around pipes, wires, flues and the hatch. They're examples of the trade, not pictures from one particular house.

  • A worker in protective gear sprays foam insulation into exposed roof framing.

  • An attic with loose yellow insulation filling the floor between wooden joists.

  • White blown-in insulation covers an attic floor beneath exposed wooden roof trusses.

  • A spacious attic has a deep layer of white loose-fill insulation across the floor.

  • A worker wearing a respirator uses a wide hose to remove loose insulation from attic floor joists.

  • Crawl space with a white plastic vapor barrier covering the floor and walls, with exposed joists, insulation, ducts, and pipes overhead.

Get a free on-site air sealing estimate

Send the form or call (410) 836-5406, and we'll reply within one business day to set up a free visit, with no obligation. I come out myself, look at your attic, and you get a written estimate.

(410) 836-5406

Air sealing questions from Bel Air South homeowners

These are the questions I hear most, standing in someone's attic or at their kitchen table. If yours isn't here, call and ask, because I'd rather explain it than have you guess.

What does air sealing do for my home in Bel Air South?

Air sealing cuts wasted energy and fuel bills and helps keep moisture problems out of your attic. When warm, damp house air leaks up through the attic floor in winter, it can settle on cold framing, so closing those holes protects the attic as well as your comfort.

How much does air sealing cost in Bel Air South, MD?

There's no honest number until I've seen your attic, because the cost comes down to how many leaks there are and what has to happen before we can seal them. Sealing on its own usually costs less than a full insulation job, and the price goes up when old, wet or dirty insulation has to come out first. I'll put your figure in a written estimate after I've looked.

What is the best way to air seal an attic before adding insulation?

Seal the holes in the attic floor first, then add the insulation. National guidance for existing vented attics puts sealing first, and if you're planning new insulation, the sealing can simply be step one of that same job, since getting to the gaps later means digging through the new fill.

Is air sealing safe if my furnace or water heater vents up a chimney?

A house with appliances on a natural draft chimney should be tested for backdrafting, which checks that exhaust goes up the chimney instead of spilling back into your rooms. National guidance calls for that test even when combustion air comes straight from outside, so ask any contractor, us included, whether the job covers it.

Who is allowed to install insulation in Maryland?

Maryland's Home Improvement Commission says insulation of any type, whatever the material or the way it goes in, has to be installed by a licensed MHIC contractor. We're licensed and fully insured.

How do I tell if my attic is leaking air into the house?

Look for dark, dusty streaks on top of your attic insulation, because the insulation works like a furnace filter and catches dirt wherever air pushes through. Drafts around ceiling lights and the attic hatch, and an upstairs that won't stay comfortable, point the same way, and I'll show you the spots when I come out.

Air sealing services in Bel Air South and nearby cities

Harford County's permit list doesn't name air sealing, so I check with the office covering your address and handle any permit needed. If heating or cooling work turns up, the licensed HVAC contractor we bring in gets that permit.

Other insulation work that often goes with air sealing

  • Basement insulation

    If the floors over your basement stay cold no matter where the thermostat sits, the fix is usually down along the basement walls and where the house meets the foundation, not up in the attic.

    Explore service

  • Closed-cell foam insulation

    When ductwork or a damp space needs an air seal and insulation in one dense layer that also blocks moisture, closed-cell foam is the material for the job.

    Explore service
(410) 836-5406Get an estimate