8 Sneaky Ways That Heat Is Leaving Your Home

During the winter months, you try to do whatever you can to keep your home warm for your family. But heat is a bit like a prison inmate: if he gets a chance, he’ll find a way to sneak out of the fortress that is your home.

Look! There he goes!

Unfortunately, there are plenty of small openings through which this heat can leak out — and this can translate into higher energy costs for you. (In fact, a gap of just an eighth of an inch near a three-foot wide door or window allows the same amount of air to pass through as a 2.4-inch diameter hole in your wall!)

Here are several potential exit points for heat in your home — and how to seal them up.

1. Holes in your attic. You know those areas where pipes, vents, and ducts run from your attic through your ceiling and/or through your roof? There may be gaps around these pipes that allow warm air to escape. Seal these with a foam spray or caulk.

2. Stairs leading to your attic. It’s easy to forget the pull-down stairs that provide access to your attic. Of course, you can’t seal up that opening completely, but you can weatherstrip the edges and insulate the top side of the attic hatch.

3. Recessed plumbing, lighting, and wiring in your ceiling. Even if your attic is well-insulted, heat can still seep out through the seams of lighting fixtures, wiring, or plumbing. Use a special high-temperature caulk to seal up these areas.

4. Doors and windows. These areas are often the biggest source of heat loss in a home. So be sure to caulk and weatherstrip all of the potential gaps around windows and doors where heat can sneak out. (Helpful hint: If you place a dollar bill on the weatherstripping and close the door or window, and the bill doesn’t fall out, the portal is properly sealed.)

5. The damper on your fireplace. Your chimney can act as a wind tunnel to allow heat to flow out of your home if your damper is not adequately sealed or properly attached. If you close the flue and light a match or scrap of paper, and the smoke still flows up the flue, you’ve got a leak.

6. Window air-conditioning units. Ideally, you should remove all window AC units during the winter so that the opening is sealed completely. If this is not possible, be sure to caulk the seams around the unit liberally in order to prevent heat loss through the window.

7. Electrical outlets. The areas around a light-switch or power outlet may seem small, but remember that you have a lot of these panels in your home. So it’s wise to invest in foam gaskets to put in around these sockets to keep the warm air inside your home’s rooms instead of behind the walls.

8. Basement openings. Like your attic, heat can flee your home through openings where vents, laundry ducts, windows, or pipes lead outside. Windows should be caulked or weatherstripped, and expanding foam should be used on other gaps to seal these holes.

Spring Savings!
20% OFF + $150 OFF
+ no money down, no interest for one year† | Hurry, Offer Ends 6/30/2024
I authorize Lednor Home Solutions to contact me about our products via phone, email, or text. You also understand we use an autodialing phone system, and my consent is not required to obtain a free estimate - I can call 888-543-5638 instead. We will never share your personal information with 3rd parties for marketing purposes or spam you. You can opt out at any time. Message/data rates apply. Consent is not a condition of purchase. Terms | Privacy Policy


1 Million+ Satisfied Customers Nationwide

I recently had the Gutter Helmet by Harry Helmet installed on my house. It not only looks amazing, but the guys arrived on time, were professional and efficiently got the job done. I am very satisfied with Gutter Helmet's attention to detail and fulfilling their work as promised. I will definitely tell my neighbors about the Gutter Helmet.
I have had Gutter Helmets for 20 years. In all that time I've never had a problem until recently a bird's nest found its way into one of my gutters. The installer who came to replace the product was the same installer from 20 years earlier. Now that's impressive. Everyone at Gutter Helmet inclusive of the office staff were professional and a pleasure to work with.
Gutter Helmet by Harry Helmet just replaced our roof and we could not be more satisfied. The crew showed up early, worked all day and stayed late, were professional and caring regarding the project and the surrounding impact it had on our property and home. They completed the roof quickly and it looks simply amazing!
VERY happy with our entire experience adding Gutter Helmet by Harry Helmet to our house. Installing this was a great value for us. The gutters are working perfectly in heavy downpours and with year-long leaves and debris coming down from our river birches. Terrific customer service and a first class product.
We needed our roof repaired due to wind damage. After several quotes, Gutter Helmet was the only company that went into our attic to look and see if more damage had occurred. If it wasn't for them taking the extra time to look at everything, we would have had rotting wood under our new roof. They were very professional and gave a fair quote.
We just had Gutter Helmet installed on our gutters and couldn't be happier. They provided us with useful information about Gutter Helmet and cleaned up everything, leaving no mess behind. We definitely recommend Gutter Helmet to anyone considering this product.

20% OFF + $150 OFF

We work hard with each manufacturer to offer our customers the best promotions monthly.

Find a Location

Serving a Location Near You


Join the Lednor Home Solutions Family

We're seeking fun, outgoing, and confident individuals who enjoy winning to join our team. Lednor Home Solutions is an equal opportunity employer and we operate a safety first & drug-free workplace focused on employee safety. Great pay and benefits, apply today!