Air conditioning · Heating · Heat pumps
Year-round comfort, explained by people who know HVAC.
Straight answers on AC and heating repair, honest cost guides, and buying advice that helps American homeowners make confident decisions.
What we cover
Every part of your home comfort system, explained
From a warm-blowing air conditioner in July to a furnace that won't light in January, our guides help you understand what's going on, what it should cost and when to call a pro.
AC repair
Diagnose warm air, short cycling, ice on the lines and noisy condensers, and see what common fixes cost.
Explore AC repair →
Furnace & heating repair
Ignition faults, cold air from the vents, tripped limit switches, and the safety checks that matter most.
Explore heating repair →
Heat pumps
How cold-climate heat pumps work, how they compare with a furnace, and what to expect from them in winter.
Explore heat pumps →
AC installation & replacement
Sizing, SEER2 ratings, the new A2L refrigerants, and how to compare quotes fairly.
Explore installation →
Ductless mini-splits
Room-by-room comfort for additions, garages, older homes and hard-to-cool bedrooms.
Explore mini-splits →
Ductwork & indoor air quality
Leaky ducts, filtration, humidity, and which air-quality upgrades are worth paying for.
Explore air quality →
Our approach
Honest answers before anyone opens a toolbox
Most homeowners only think about their HVAC system when it stops working. By then you're hot or cold, stressed, and being asked to make a decision worth thousands of dollars in a single visit.
AC Heating Service exists to change that. We explain how your system works, what typically goes wrong, and what fair repair and replacement prices look like across the US, so you can ask better questions and avoid paying for work you don't need.
- Plain English, not jargon
- National cost ranges, with the factors that push prices up or down
- Safety first: we tell you clearly when a job is for a licensed pro
Know the numbers
Typical US price ranges at a glance
These are broad national estimates, shown to help you plan. Your actual quote depends on your home, region, equipment and season.
Before you call
Six checks that solve a surprising number of "broken" systems
Thermostat settings
Make sure it's set to Cool or Heat, the set point is past room temperature, and the batteries aren't dead.
Breakers and switches
Check the breaker panel, the outdoor disconnect, and the light-switch-style service switch near the furnace.
Air filter
A clogged filter can freeze an AC coil or overheat a furnace. Replace it if it looks gray.
Condensate drain
A full drain pan or a tripped float switch will shut the system down. Look for water around the indoor unit.
Outdoor unit
Clear leaves, grass clippings and anything stored against the condenser. It needs about two feet of clearance.
Furnace door
Furnaces won't run with the blower door off. Never bypass a safety switch, and call a pro if it keeps tripping.
From the advice blog
Latest in-depth guides
AC running but not cooling? 9 causes and fixes
A step-by-step guide from simple checks to refrigerant and compressor problems.
Read more →Heat pump vs. furnace: which is right for your home?
Climate, fuel prices, comfort and dual-fuel setups compared honestly.
Read more →R-410A to R-454B: what the refrigerant change means
Why new AC systems use A2L refrigerants and what that means for repairs.
Read more →Safety first
When to stop and call a professional
Some jobs are fine for a homeowner: changing filters, clearing the outdoor unit, flushing a condensate line. Others aren't. Anything involving gas lines, refrigerant, high-voltage wiring or combustion venting belongs with a licensed, insured technician.
