This winter is expected to be warmer than normal thanks to the La Niña effect, bringing stretches of unseasonably warm weather. 

When cold fronts do roll in, temperatures could dip colder than normal, meaning heating systems could experience quite the swing. Those ups and downs can make homes less efficient and drive-up energy bills if not properly prepared.The good news is there’s still time to tackle a few easy projects that will make a home more efficient and comfortable before the chill sets in. Here are 10 weekend-warrior projects to help keep energy costs in check this winter:

Seal Air Leaks and Weather-Strip Doors and Windows
Drafts around doors, windows and outlets can waste up to 20 percent of a home’s heating energy. Use caulk or weather-stripping to seal gaps where warm air escapes. A few hours of work now can pay dividends all winter long.

Add or Upgrade Insulation
Many homeowners don’t realize that adding insulation can be a simple DIY project, especially in accessible spaces like attics. Exposed ceiling joists in an attic are a sure sign that additional insulation is needed. Proper insulation helps keep warm air in and cold air out, reducing heat loss and helping the HVAC system maintain even temperatures. With just a few tools and safety gear, new insulation can be rolled or blown in over a weekend and start saving energy right away.
Tip: United offers rebates for attic insulation upgrades. Visit ucs.net/rebates for details and eligibility requirements.

Clean or Replace HVAC Filters
A clean air filter is essential for efficient heating. Over time, dust and debris build up, restricting airflow and forcing the system to work harder, use more energy and wear out faster. Filters should be checked monthly during heavy use and replaced every one to three months for optimal airflow and efficiency. Regular replacement can reduce energy costs and extend the life of the system. 

• Tip: United offers rebates for HVAC tuneups. Visit ucs.net/rebates for details and eligibility requirements.

Install a Programmable or Smart Thermostat
A smart thermostat can automatically lower the temperature when the home is unoccupied or during nighttime hours. Even small temperature adjustments can trim energy use by 10 percent or more.

• Tip: United offers rebates on qualifying smart thermostats. Check ucs.net/rebates to check for models that qualify.

Check The Ductwork
Leaky ducts can lose up to 30 percent of heated air before it ever reaches occupied rooms, wasting energy and driving up costs. Inspect visible ductwork in attics, basements and crawl spaces for disconnected joints, holes or gaps. Use metal foil tape and mastic sealant to seal leaks properly. Sealing ducts can provide an immediate boost in heating efficiency and improve overall comfort throughout the home.

Switch to LED Lighting
As daylight hours shorten, lighting use climbs. Replacing old bulbs with LEDs can cut lighting costs by up to 75 percent—plus, LEDs last much longer, meaning fewer trips up the ladder.

Insulate The Water Heater and Pipes
Water heaters work harder in colder months, especially if located in unheated garages. Wrapping the unit with an insulating blanket can reduce standby heat loss by up to 45 percent. Insulating hot water pipes helps water stay warmer as it travels through the home, reducing the energy required to reheat it.

• Tip: United offers free water heater blankets to members during free energy audits (while supplies last). The water heater must be electric and in an unconditioned space. Check ucs.net/energy-audits to learn more. 

Use Ceiling Fans Wisely
Ceiling fans aren’t just for summer. Most models have a  switch to reverse the blade direction; setting them to spin clockwise in winter to gently push warm air down from the ceiling. This helps maintain even temperatures and allows the thermostat to be set a few degrees lower without sacrificing comfort.

Adjust Thermostat Settings for Maximum Efficiency
Fine-tuning thermostat settings can make a big impact on energy bills. In winter, aim for about 68 degrees when the home is occupied and lower it by 3-4 degrees during sleeping or away hours. This small change can reduce heating costs by as much as 5-10 percent annually. Programmable or smart thermostats can adjust temperatures based on daily schedules for consistent comfort and savings.

• Tip: Pairing efficient thermostat settings with a smart thermostat upgrade (see #4) can maximize both convenience and energy savings.

Install Window Treatments for Insulation
Thermal curtains or insulated cellular shades add a layer of protection against drafts and heat loss. Close them at night to keep warmth in and open them during sunny days to let in free solar heat. It’s a simple, affordable way to make a noticeable difference in comfort and energy use.

The Bottom Line
This La Niña-driven winter is expected to be warmer than normal overall, but if it does get cold, conditions could swing sharply. By tackling a few weekend projects now and taking advantage of United’s available rebates, homeowners can boost comfort, improve efficiency and keep energy bills under control no matter how wild the weather gets.