Established in 1985

Kelly's Heating and air conditioning better business bureau

Furnace and Heating
repair & service

License # 496189    714-750-6583

For air conditioning repair or cooling service we can often be there within 2 hours.

We offer
10% off repair or service for new customers.

Furnace diagnosis and repair

You can count on Kelly's for proper heating system diagnosis to find out where your furnace or heating system needs repair or service.

We'll give you an accurate evaluation of your furnace's overall health and what repair, service or options are in your best interest.

You can depend on us for a quality furnace repair, good advice and good service, with a warranty we stand behind!

If a new heating system or furnace is needed Kelly's recommends the system best suited for your home, for dependability, efficiency and in keeping with your needs. Your home heating will be more dependable, efficient and comfortable after our job is complete.

Why Choose Kelly's

  • serving Orange County since 1985
  • we treat customers properly
  • we do quality work
  • we give flat rate estimates, with no hidden surprises
  • Fully licensed and insured
  • Our repair and service guarantee is a full year parts and labor.

Tom Kelly promises

My company will advise you properly, do quality work and guarantee it.

Tom Kelly

Furnace and heating repair Tips

Many furnace or heating system failures are caused by bad thermostats, defective contactors or tripped circuit breakers. If your furnace fails to start. Check these first before calling us for repair:

  • 1 Check that the thermostat is set to “heat” and above the current temperature.
  • 2 Check your homes main electrical panel and secondary circuit panels for tripped breakers or blown fuses. If you find the problem here, reset the breaker or replace the fuse. If the circuit blows again, something is wrong. Call us. You need a qualified furnace and heating repair technician.
  • 3 Make sure the furnace power is turned on.
  • If your furnace still fails to start, call us.

Furnace repair Tips - filters

If your furnace is working but not very well. First check the filters. Dirty filters restrict air flow. Low air flow causes the furnace to be overworked and run hot internally. A good rule to keep your furnace efficient is to change your filters often. That will save you energy and repairs. A dirty furnace will not work as well, be energy efficient nor last as long as a clean well maintained one will. If yours needs repair, service or preventive maintenance, give us a call.

Furnace repair Tips - pets

Pet fur will collect on filters and on your AC evaporator coil. We frequently see badly plugged AC coils because of pet fur. Often the evaporator coil must cleaned of fur to bring back proper air flow. Pet owners need to change furnace filters even more frequently. A plugged evaporator coil is usually not very easy for you to check yourself because you need to look up under the evaporator coil, which is often blocked by the furnace.

Furnace repair Tips - dirt

If your furnace is dirty it's efficiency is easily reduced by dirt. According to the EPA a build-up of .042 inches of dirt on a heating or cooling coil can result in a decrease in efficiency of 21%. We recommend to all our customers a yearly cleaning.

If your furnace has not been cleaned this year, get it done and save energy, and have better comfort. Plus your furnce will last longer and require fewer repairs. Give us a call!

Our job

Kelly's will determine the real cause of your furnace or heating failure and the parts or service required to bring your HVAC system to good, efficient working order.

We'll give you an accurate evaluation of your furnace and systems overall health and what repair, service or options are in your best interest.

Kelly's is a superior choice for furnace and heating repair.

Service area