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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon10
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Lincoln - Updated Nov 2026

Avatar for Healthy Homes, LLC
Healthy Homes, LLC
4.5(
32
)
Air Ducts & Vents - Clean

Serving Lincoln, IL and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"Everyone was very efficient and courteous - even discovered an issue with our electrical wiring that may have caused issues in the future. Would definitely recommend Healthy Homes!"
Justice Project
Justice Project
Justice Project
Justice Project
Justice Project

+36

Response time2 days
Response rate92%
2 neighbors recently requested a quote
Curtis Home Solutions
New to Angi
Thermostat - Install or Replace

Serving Lincoln, IL and surrounding areas

Approved

I am a jack of trades independent contractor/ handyman with 10+ years experience. I am not a licensed plumber, licensed electrician, or licensed roofer. With that said it's easier to just tell you the things that I don't do. I do not do drain work, I do not replace electrical lines or panel boxes, I do not replace plumbing lines which includes water and gas, and I do not replace roofs. Aside from that I can do everything else, and have the tools to do so.

Avatar for Abbott HVAC
Abbott HVAC
4.7(
32
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Lincoln, IL and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"When my HVAC unit went out I called A n 1 at 12:30am, as I have gotten home from work not too long ago. He answer and said he be right there. He came through check it all out and let us know exactly what needed to be done. He quote us too on the price if we decide to stick with him. Since he is a smaller personally owned company he didn't have financial options. So we had to think if over. Anyways I offer to give him some cash for coming out here so late and he kindly refuse, which was very kind of him. Even though it was already 2am by the time he was done checking it all out. After a few calls to other companies we realize we rather pay a hard working, honest man and help smaller local business. Also his price was unbeatable and the quote he quoted us was what we pay no hidden cost or anything. Needless to say we were highly satisfy with his work and his honesty. He was upfront with what was needed and didn't not try to sell us on anything else. Highly recommend his service! And the price was very reasonable!!!"
Additional Photos
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+37

Recommended by93%of homeowners
Avatar for Deputy Duct, Inc.
Deputy Duct, Inc.
4.6(
28
)
Air Ducts & Vents - Clean

Serving Lincoln, IL and surrounding areas

In business since 1993

Free estimates

Credit card accepted

"Doug and his assistant (don't remember his name) were very professional. They were nice to my "scaredy" dog too. They showed me the before and after pictures of my duct work when they were done and it was the difference between night and day."
 Job done near Peoria, Illinois
  Job done near Peoria, Illinois
  Job done near Peoria, Illinois
  Job done near Peoria, Illinois
 ATC Insulators

+1

Recommended by92%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

You should know the main components of an air conditioner: the condenser coils, evaporator coils, drip pan, AC filter, ducts, and refrigerant. Each part plays a key role in the performance and safety of your AC system. When tracking the source of AC issues or odors, it helps to know where to look. Your outdoor unit houses your condenser coils, fan, and compressor. Your indoor unit houses your evaporator coils, drain lines, and filter, and it connects to your ductwork. 

The average life span of an HVAC system is 15 to 20 years. Even if your old air conditioner is still functional, it isn't as energy-efficient as a newer system (especially one with an Energy Star designation). Older HVAC systems aren't as efficient, and the 10-year mark is when you should start making full system replacement plans. Twenty years in, that plan should be well underway rather than waiting for the unit to die.

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

A frozen coil can cause permanent damage to your HVAC system and lead to costly repairs if not fixed. It can cause the unit to overheat and also cause the compressor to fail. It’s vital to turn the unit off if the coil is frozen and address the issue as soon as possible. 

The Lincoln, IL homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.