Heating and Cooling for Less

What do common heating and cooling repairs cost?

The parts behind most no-heat and no-cool calls cost less than the visit. Penny Damper prints supply-house prices with the date they were read: on October 27, 2026, a round dual run capacitor for a central air conditioner was $8.96 to $19.21, and universal PSC blower motors up to 1/2 hp were $130.71 to $146.77, in each case without labor. The rest of an invoice pays for the trip, the diagnosis and the technician's hours.

Labor is never guessed here. The wage is quoted instead: the Bureau of Labor Statistics reports that half of HVAC mechanics earned more and half less than $29.33 an hour in May 2025. A company bills above that because the same rate keeps its vans, insurance and tools going. The repair costs hub carries the full dated price table, and each part has its own page, starting with the AC capacitor and the furnace igniter.

Should you repair or replace an old system?

Start with age. ENERGY STAR's replacement page suggests looking at a new air conditioner or heat pump once yours passes 10 years, and a new furnace or boiler after 15. The "$5,000 rule," which multiplies age by the repair quote, is a trade habit that no agency backs.

Then weigh efficiency, which depends on the installer as much as the box. ENERGY STAR credits correctly installed high-efficiency units with savings of up to 20 percent on heating and cooling. Collect a repair quote and a replacement quote in writing, then apply the repair-or-replace test. If the diagnosis is a failed compressor, read what a compressor swap involves before signing.

Where the money goes

• Nearly halfPortion of household energy that heating and cooling useENERGY STAR
• 20–30%Duct air lost to leaks, holes and loose connectionsENERGY STAR
• 18.16¢What U.S. homes paid per kWh on average in August 2026EIA
• $372Yearly savings DOE reports for weatherized households, on average or moreDOE
• $29.33Midpoint hourly pay for HVAC mechanics in May 2025BLS

Which upkeep is safe to do yourself?

Filters, thermostat batteries and settings, one breaker reset, a clear outdoor unit and a flushed condensate drain are yours to handle. Shut the system off at the thermostat, then at the breaker or outdoor disconnect, before touching anything. ENERGY STAR asks you to look at the filter every month and never leave one in longer than 3 months, since a clogged filter chokes airflow and can harm the equipment.

For filters, EPA's target is MERV 13 or the highest rating your system's fan and slot can handle, with a technician's advice if in doubt; the MERV ratings page weighs it up. Outdoors, rinse the coil gently with a garden hose and the power off; a pressure washer is not safe for the fins. Leaky ducts in an attic or crawl space are sealed with mastic or metal-backed tape rather than cloth duct tape (duct leaks). The whole routine sits on the safe upkeep hub.

Which thermostat settings save money?

Cooler in winter, warmer in summer, and a schedule for the hours nobody is home. DOE's numbers are 68°F as a winter ceiling and 78°F as a summer floor, and the 2022 Energy Saver Guide puts the payoff of turning it back 7–10°F for 8 hours daily at as much as 10% per year. Heat-pump owners should skip deep setbacks unless their thermostat is a smart or programmable model built for heat pumps, since backup resistance heat is the expensive kind.

A certified smart thermostat can save approximately $100 a year, ENERGY STAR says, in homes that sit empty for long stretches. In summer a ceiling fan lets you nudge the setting up about 4°F without feeling it, per DOE; in winter, switch it to clockwise. Setting by setting, the thermostat settings page and the heat pump settings page go further.

Where can you get help with heating and cooling bills?

LIHEAP and the Weatherization Assistance Program are the two large federal programs, and states and local agencies run both. LIHEAP covers heating and cooling bills, energy emergencies, weatherization and small energy-related repairs, and charges nothing to apply. The LIHEAP budget for FY2026 totaled $4.13 billion, and the first FY2027 money went out on October 9, 2026 (LIHEAP page).

Weatherization serves households at or below 200% of the poverty guidelines, and some states use LIHEAP's criteria instead; DOE reports that those homes save "on average $372 or more every year." Home Energy Rebates, renamed HOMES and HEEHR in 2026, operate only in select states, so ask your State Energy Office. The bill help hub gathers all of it, along with financing red flags.

What should you never do yourself?

Leave refrigerant, gas parts and capacitors to a professional. Refrigerant can be bought and handled only by technicians certified under EPA Section 608, and a low charge means a leak to find and fix (refrigerant leaks). Gas valves, burners, igniters and heat exchangers stay closed to homeowners, and no safety switch (limit, rollout, pressure, float or door) should ever be bypassed. A capacitor can store a dangerous charge after the power is cut. If you're unsure, call a licensed technician.

Two situations call for leaving, not diagnosing. Smell gas? Get out of the house first, skip every light switch and phone indoors, and reach 911 or the gas company once you're outside. A sounding carbon monoxide alarm means everyone goes out to fresh air before anyone calls 911 or the fire department; CPSC wants CO alarms on each level and near bedrooms (carbon monoxide). Ovens, stoves and grills are never heaters. A space heater labeled 1,500 watts runs about 27¢ an hour at EIA's August 2026 average (1.5 kW × 18.16¢), and CPSC asks for 3 feet of clear space around it (space heaters).

More questions

Start here

• What heating and cooling repairs costSection
• HVAC upkeep you can do safelySection
• Help paying heating and cooling billsSection