Drafty Windows? Here’s What That’s Really Costing You in Energy Loss
You might not think much of a little draft — until your heating bill arrives. Drafty windows are more than just an annoyance; they’re one of the biggest culprits behind energy waste in Minnesota homes. At Hammerside, we help homeowners identify problem areas and upgrade to energy-efficient solutions that improve comfort and save money all year long.
Why Drafts Happen
Over time, windows can lose their seal, become warped, or suffer from frame shrinkage due to Minnesota’s freeze-thaw cycles. When that happens, outdoor air leaks in — and your conditioned air leaks out.
Common causes of drafty windows:
Cracked or shrinking caulk and weatherstripping
Warped wood or vinyl frames
Failed insulated glass (fog or condensation between panes)
Improper installation or settling of the home
The Real Cost of a Draft
According to the Minnesota Department of Commerce, heating and cooling account for over 50% of the average household energy use — and leaky windows are a major contributor.
In winter, drafty windows allow cold air to flow in and your furnace to work overtime.
In summer, they let in heat and force your A/C to compensate.
The result? Higher utility bills and an uncomfortable home.
Signs You May Have Drafty Windows
Not sure if your windows are to blame? Here are a few red flags:
You feel a chill near the window, even when it’s closed
Curtains move slightly on windy days
You see light around the edges of the frame
There’s condensation between double panes
Your energy bills are higher than usual for the season
What You Can Do About It
Short-Term Fixes:
Re-caulk or replace weatherstripping
Use insulated curtains or plastic film kits
Install draft stoppers or foam sealant around loose frames
Long-Term Solution:
If your windows are over 20 years old or showing signs of structural failure, it may be time for a full replacement. Modern, energy-efficient windows come with advanced features that dramatically reduce heat loss:
Dual or triple-pane insulated glass
Argon or krypton gas fills
Low-E (low-emissivity) coatings
Tight-sealing composite or fiberglass frames
How Hammerside Can Help
At Hammerside Exteriors, we offer professional window inspections and full replacement services using Energy Star–rated products designed for Minnesota’s climate. Our team helps you choose the right style, fit, and insulation level to improve efficiency and comfort.
We install:
Vinyl, fiberglass, and composite windows
Casement, sliding, picture, and double-hung styles
Full-frame and retrofit installations
Trim, caulking, and finishing for a clean look and secure seal
Let’s seal the leaks and lower your bills.
Contact Hammerside today for a no-obligation window inspection. We’ll assess your current setup and offer clear solutions that make your home warmer, quieter, and more energy-efficient.
