4.6 
111 *The Angi rating for Heating And Air Conditioning Service companies in Highland, 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 Highland, 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 May 17, 2026
Serving Highland, IL and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Excellent job thank you. Will use them again for certain."
Serving Highland, IL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Tim and Jeff were very fastidious in setting up, cleaning, and making sure the house was in good order when they left . We also had an Aeroseal treatment which followed with James and Connor. It did take some time to set up after the vents were cleaned and blown out, but the application of this polymer to close gaps in lthe galvinized steel ducts was remarkable."
Serving Highland, IL and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Phil has great knowledge of our radiator and furnace and we always call him to fix it. Itâ s an old heating and cooling system because our house is old and he knows how to fix the issues every time."
+2
Serving Highland, IL and surrounding areas
Approved
In business since 2006
Emergency services offered
Small jobs welcome
"They were the only one that were able to come out on a Sunday. Found the problem and got our ac working during a heat advisory. Very satisfied with the results and will continue to use them again. Will recommend them to friends and family."
Serving Highland, IL and surrounding areas
Approved (Corporate)
In business since 1990
Free estimates
Emergency services offered
Your home's plumbing, HVAC, and electrical systems keep your family comfortable and safe. When something goes wrong or you're ready to upgrade, Morrison Plumbing, Heating, Air & Electrical is the Metro East team that delivers same-day service, upfront pricing, and work you can count on.\n\nWe serve Caseyville and surrounding communities through hot, humid summers and cold Illinois winters. Our technicians are licensed, insured, and trained to repair and install heating, cooling, plumbing, and electrical systems so your home stays reliable year-round.
+6
Serving Highland, IL and surrounding areas
Approved
In business since 2000
Warranties offered
Small jobs welcome
"It went fast, clean and great."
+5
Serving Highland, IL and surrounding areas
Approved (Corporate)
In business since 1993
Free estimates
Emergency services offered
"My technician Keith was great. Friendly and super informative. Also too a quick look at the entire drainage system and gave my an idea of where problems will pop up the future without preventative measures (my home was built in the 50s and while the previous owners took really good care of the house nothing has been gutted and replaced yet)."
+5
Serving Highland, IL and surrounding areas
Approved
Customers say: True professional
"Very prompt, courteous, reliable, kept me informed. Fair pricing and good work."
Serving Highland, IL and surrounding areas
Approved
In business since 1963
Free estimates
Warranties offered
For more than 60 years, ARCO Heating & Cooling has been the local HVAC company that residents and businesses turn to for their heating and cooling needs. What began as a small business has grown into a cornerstone of the St. Charles, St. Louis, & Illinois communities, providing dependable service designed to keep our neighbors comfortable year-round. As a family-owned, local HVAC company, we’re more than just a service provider—we’re part of the community. We live and work right here in the St. Charles, St. Louis, & Illinois Metro areas, so we understand the unique climate challenges our neighbors face. This local connection fuels our dedication to providing personalized service and dependable solutions that make life easier for our customers.
+20
Serving Highland, IL and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
C-MAC Development, LLC offers quality services to clients at reasonable prices. Our courteous staff has the professional tools and experience necessary to help with all your needs. We specialize in interior and exterior painting, kitchen and bath remodels, flooring, window installations, fences and decks. Call today to get in touch with our staff, and to learn more about what we have to offer!
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