Attic air sealing in West Lafayette IN - an attic that stops leaking your heat

Cold rooms upstairs and a power bill that doesn't add up? We close the big attic leaks so your insulation can actually work.

Request an estimate (765) 250-8264

Attic rafters and roof surfaces are densely coated with cream-colored spray foam insulation, with ducts and work lights below.

Will attic air sealing fix my cold, drafty upstairs?

Attic air sealing in West Lafayette means closing the holes where warm air from your rooms leaks up into the attic. It's often what's missing when a house has insulation up there but still feels drafty and costs too much to heat.

Most calls I get start with cold rooms upstairs, a draft you can feel near the ceiling or a heating bill that doesn't make sense, in a house that already has some attic insulation. Insulation slows heat, but air slips right through it wherever there's a gap underneath, so piling more on top won't do much until those gaps are shut. The price depends on how many big gaps your attic has, how easy it is to move around up there, and whether anything has to be fixed, pulled out or moved first. That last part also sets the schedule. You'll get your own figure at the estimate, once I've been up there.

How we do attic air sealing

At the estimate I go up with a flashlight and look for where your house leaks into the attic and for anything that has to be dealt with before sealing. On the install, our crew pulls back the old insulation where it covers the tops of the walls and goes after the big holes first, where walls meet the attic floor, around flues and behind kneewalls, because that's where most of the air gets out. We don't spend your money chasing every hairline crack. Then we seal around can lights, pipes, wires and the attic hatch so the insulation isn't fighting a draft. We lay the insulation back evenly all the way to the edges, keep the eave vents clear so the attic can still breathe, and clean up on the way out.

Sealing usually leads straight into more insulation. Once the gaps are shut, a lot of attics in older houses are ready for retrofit insulation, which means topping up the loose fill that's already there. Spray foam insulation seals and insulates in one pass, but it costs more. I only recommend it when your ductwork runs through the attic, because then keeping the attic itself warm is worth paying for.

Seal and put your insulation back

This suits an attic that already has a decent depth of insulation that's dry and clean. We seal underneath it and set it back evenly, so you aren't paying for material you don't need.

Seal, then top up with blown-in

This suits an attic with only a few inches up there, which we see a lot in older houses. We seal first, then add blown-in insulation, loose fill blown through a hose, so the new layer sits on a tight ceiling.

Why West Lafayette homeowners call D&T West Lafayette Spray Foam Insulation for attic sealing

I look at your attic myself

I'm the one who comes out for the estimate, and I'll point the flashlight at the gaps so you can see what I see. If your attic doesn't need sealing, I'll say so instead of selling you the job. I also work alongside our crew on the install.

Work done in the right order since 2023

We've been in business since 2023, 3 years now, and attics and air sealing are what we're best known for. Insulation laid over open gaps or a wet roof is money thrown away, so we fix what has to be fixed, seal the leaks and only then add insulation.

Licensed and insured for work over your ceilings

We're fully licensed and insured, which matters when a crew is working above your ceilings, around flues and near wiring. Satisfaction guaranteed on every job. When you're ready, call (765) 250-8264 or fill out the form on this page and we'll set up a time.

Get a free on-site look at where your attic leaks

We reply within one business day to set up a visit. Then I come out, look at your attic and give you a free estimate on site, with no obligation. It helps to send your address and let us know if you have boxes stored up there, boards over the attic floor or a gas furnace, water heater or dryer.

Phone: (765) 250-8264
Email: contact@westlafayettesprayfoaminsulation.com
Location: West Lafayette, IN 47906
Hours: Mon–Fri: 7 AM–10 PM, Sat–Sun: 6 AM–11 PM

Attic air sealing in West Lafayette, inside and outside city limits

Inside the city, West Lafayette's Building Department issues permits for any changes to existing buildings. Its permits page lists work like structural changes and electrical, not air sealing. Those pages don't say either way whether sealing an attic needs a permit, and the city asks you to contact the department if you're unsure. When a permit is needed, review typically takes 10 business days after the department has everything it asks for, so plan that wait into the schedule. If your house is in the New Chauncey Historical District, plans go to the Department of Development and the Historic Preservation Committee before the department reviews a building permit. Homes outside city limits deal with the City of Lafayette or the Tippecanoe County Building Commission instead. That's why I check which office covers your address first, and we handle the permit side with that office when your job calls for one.

We're based in West Lafayette and work across the cities around it, including Lafayette, Crawfordsville, Frankfort and Monticello. Around here we see a lot of older houses with finished upstairs rooms and kneewalls, attics with boards laid down for storage, and bath fans that blow into the attic instead of outside. Those are the spots I check first.

Questions West Lafayette homeowners ask about attic sealing

Should I seal my attic before adding insulation?

Yes. Federal guidance on attic sealing says you get the most energy savings by sealing first and insulating after, so if you're planning to add insulation, book the sealing first. We do the two in that order so nobody has to dig new insulation back out to reach a gap.

What has to be fixed before attic air sealing can start?

A federal attic sealing guide holds off on sealing while the attic has live knob and tube wiring, vermiculite insulation or bath fans venting into it, and a roof leak gets fixed first too. Those get handled before the sealing goes ahead. I look for all of them at the estimate and tell you what needs doing before we put a date on the calendar.

Will sealing my attic affect my gas furnace or water heater?

It can. A tighter house can let carbon monoxide build up when a gas-burning appliance isn't venting properly, so ENERGY STAR's guide recommends having a heating and cooling technician check the venting on the furnace, water heater and dryer. If you have gas appliances, tell us at the estimate so that check fits into the plan.

How do I get my attic ready for air sealing?

Tell us at the estimate if you have boxes stored up there or boards over the attic floor, so we can plan for moving them. The federal guide notes that a lot of stored belongings may need to be moved and stored for a while. Flooring comes up before sealing, and if it supports part of the structure, that support gets replaced first.

How long does attic air sealing take in West Lafayette?

The schedule usually depends more on what has to happen before sealing than on the sealing itself. A roof repair, a bath fan that needs re-venting, a venting check on gas appliances or a permit wait, if your job needs one, all come first. I'll walk you through the order and give you a start date once I've seen the attic.

How much does attic air sealing cost in West Lafayette?

You'll get a real number once I've been up in your attic, because the price comes from what's up there more than from the size of the house. Kneewalls, dropped ceilings and a deep layer of old insulation take longer to work around. Old insulation that's soaked or full of droppings should come out first through insulation removal, or the problem stays.