When winter hits Boulder, the mountains sparkle—but so do energy bills. As locals start bundling up, a few simple, budget-friendly habits can keep your home warm and your wallet happy. Here are ten easy ways Boulderites can winterize wisely while staying true to the city’s eco-friendly spirit.

1. Seal the Leaks

A quick trip to McGuckin Hardware for a $10 window insulation kit can save you hundreds on heating. Seal around doors and old windows to keep that Rocky Mountain chill outside where it belongs.

2. Flip the Fan

Reverse your ceiling fans so warm air circulates down. It’s one of the cheapest energy tricks that makes a big difference during Boulder’s coldest months.

3. Let the Sunshine In

Boulder averages over 245 sunny days a year—take advantage of them. Open south-facing blinds during the day to naturally warm your home, then close them at night to retain heat.

4. Insulate Smart

If you rent near CU or own an older North Boulder home, add insulation to attics and crawl spaces. Even a few rolls of eco-friendly insulation from Boulder County ReSource can save up to 20% on heating costs.

5. Check Your Filters

A clogged furnace filter forces your system to work harder. Replace filters monthly to boost efficiency and improve indoor air quality.

6. Drive with Winter Sense

Keep your tires inflated—every drop in temperature can reduce pressure, lowering your MPG. Stop by Boulder Tire or a local shop to check your levels before heading into the foothills.

7. Layer Up, Boulder-Style

CU students know the drill: sweaters, flannels, and fuzzy socks. Dressing warm at home lets you lower the thermostat a few degrees—saving up to 5% per degree.

8. Use Smart Power

Plug space heaters, lights, and chargers into power strips. Flip them off when not in use to prevent “phantom energy” drain.

9. Shop Secondhand

Visit Boulder County ReSource or Habitat for Humanity ReStore for affordable weatherproofing supplies and cozy home goods. It’s sustainable and keeps more cash in your pocket.

10. Get Cozy Together

Whether it’s a family movie night or roommates sharing hot cocoa, togetherness generates warmth—literally and figuratively.

With just a few smart habits, Boulder residents can stay cozy, eco-friendly, and on budget all winter long.

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