*The Angi rating for Heating And Air Conditioning Service companies in Fairfield, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Fairfield, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on January 26, 2026
Serving Fairfield, IL and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Great guy, years of experience. It was cheap buy great quality work done in a timely manner"
Serving Fairfield, IL and surrounding areas
Approved
Looking to make a difference big or small!
Serving Fairfield, IL and surrounding areas
Approved
In business since 2002
Free estimates
Credit card accepted
Service Tek, Inc., provides full-service heating and AC installations and repair work to the Olney area. We are highly trained in today's efficient product lines. We also install thermal units.
Serving Fairfield, IL and surrounding areas
Approved
My name is David Michl, and Next Phase Power LLC is built on 20 years of hands-on electrical experience across residential, commercial, and industrial work. From home wiring to underground PVC trenching for services, fuel stations, and farms, I understand how important reliable power is to everyday life.\nProudly serving Jasper County, Effingham, and surrounding communities with dependable service, honest work, and quality craftsmanship. Fully licensed and insured, competitive pricing, and free estimates. Feel free to call or text anytime, and don’t forget to leave a review here or on our Facebook page. Thank you for your support!
Serving Fairfield, IL and surrounding areas
Approved
I’m a hardworking person who doesn’t like to leave projects half finished or looking sloppy, I can be a bit of a perfectionist. I’ve always fixed and built almost everything I needed myself and I take pride in being self sufficient. I’ve been an electrician for a year and half now and before that I was fabricating aerators for private residences. I have a wife and two children, so I can handle the chaos of a whole house remodel even if you decide to alter any details halfway through.
Serving Fairfield, IL and surrounding areas
In business since 2017
Free estimates
Credit card accepted
"They installed a HVAC unit in a new building/office."
+1
Serving Fairfield, IL and surrounding areas
In business since 1970
Free estimates
Emergency services offered
"He was very prompt, he cleaned up after he was done. Very thorough on explaining what he did."
Serving Fairfield, IL and surrounding areas
Free estimates
Emergency services offered
Credit card accepted
"He was very professional and clearly explained what the problem was."
Serving Fairfield, IL and surrounding areas
In business since 1893
Free estimates
Warranties offered
"The team from A-1 Interstate Mechanical were great they did a good job were on time and showed respect for my home and me."
Serving Fairfield, IL and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Mr. Ferrell worked with my husband over the phone to fix the problem. It was surprisingly fast and stress-free. To have the work done remotely in less than an hour was wonderful."
From average costs to expert advice, get all the answers you need to get your job done.
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