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15 Low-Lift Home Projects That Actually Lower Energy Bills

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You cannot control utility rates, but you can attack the little leaks that waste money every day. Focus on quick wins you can finish in an hour or two with basic tools. Small fixes stack up across heating, cooling, hot water, and plug loads. Keep receipts, label dates on filters, and take before-and-after photos so you know what worked.

1. Seal the Big Air Leaks First

attic
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Hit the obvious gaps around the attic hatch, plumbing penetrations, and chimney framing with foam and caulk. A quick primer on air sealing basics shows what to target and what to leave to pros. Start upstairs and along exterior walls, where leaks cost the most.

2. Weatherstrip Your Exterior Doors

exterior door
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If you see daylight or feel a draft, replace the foam or rubber around the jambs and add a door sweep. Adjust the strike plate so the latch pulls the door tight. Close on a dollar bill; if it slides, the seal is weak.

3. Swap Your Most‑Used Bulbs to LEDs

white light bulb near three yellow clips
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Change the five fixtures you use daily. Look for ENERGY STAR LEDs so you get long life and steady color. Choose warm white for living areas and daylight for task spaces.

4. Set a Real Thermostat Schedule

a digital thermometer on a white wall
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Create weekday and weekend schedules you can live with. Program sleep and “away” periods, then leave it alone. If you upgrade later, smart thermostats make this even easier.

5. Change the HVAC Filter on a Schedule

a white computer fan sitting on top of a yellow surface
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A clogged filter chokes airflow and makes the blower run longer. Check monthly at first, then learn your home’s rhythm. Write the change date on the frame so you don’t guess.

6. Clean Refrigerator Coils and Door Gaskets

A kitchen with white cabinets and stainless steel appliances
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Unplug, pull the unit out, and vacuum the coils. Wipe the door seals and test them with a paper strip so cold air stays put. Give the fridge a little breathing room so heat can escape.





7. Lower Water Heater Temperature

selective focus photography of turned-on faucet
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Scalding is risky and overheated water wastes fuel. Most homes can set to 120°F and be comfortable. Insulate the first few feet of hot‑water pipe coming out of the tank while you are there.

8. Add Faucet Aerators and a Better Showerhead

shower head
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Screw‑on aerators cut flow without killing pressure. Look for WaterSense‑labeled aerators and a matching showerhead so you save hot water every day. Keep the old parts in a bag in case you need them later.

9. Tame Standby Power With a Smart Strip

tv on standby
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TVs, consoles, and chargers sip power when “off.” A quick standby power guide shows where it goes and how advanced power strips fix it. Put the TV on the master outlet and the extras on controlled outlets.

10. Insulate the Accessible Hot‑Water Pipes

hot water pipes
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Slide foam sleeves on the hot line under sinks and near the water heater. It is a cheap upgrade that keeps water hotter on the way to the tap. Tape the seams where elbows meet.

11. Seal Duct Seams You Can Reach

a white wall with a hole in it
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In a basement or garage, brush mastic on visible joints and around boots. Skip the “duct tape” and use foil tape where mastic is messy. Better seals mean more air to rooms and less to crawl spaces.

12. Clean the Dryer Vent

a white washing machine
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Lint clogs make the dryer run longer. Follow dryer‑vent safety tips and pull the vent to vacuum the run to the outside. Replace crushed flex duct with a smooth metal section if you can.

13. Add Window Film on the Draftiest Panes

a close up of a window with a blue sky in the background
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Clear interior film kits tighten up old single‑pane windows for one season. Work on a calm day, stretch the film, and finish with a hair dryer. Label each sheet for easy removal in spring.





14. Use Heavy Curtains the Smart Way

heavy curtains
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Close at night and on cold, windy days. Open sun‑facing windows during the day in winter to warm rooms for free. In summer, keep blinds down during the hottest part of the afternoon.

15. Grab Rebates and Credits

rebates
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Before you buy anything, check the DSIRE database for local rebates from utilities and states. If you upgrade bigger items, review IRS guidance on the Energy Efficient Home Improvement Credit so you do not leave money on the table. Save invoices and model numbers for proof.