4.7 
78 *The Angi rating for Heating And Air Conditioning Service companies in Diamond, 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 Diamond, 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 July 09, 2026
Serving Diamond, IL and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"John does a great job. I always will recommend him."
+24
Serving Diamond, IL and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Came out right away and resolved my issue with my furnace. Was curtious, honest and fair. Will call in fall for furnace to be cleaned."
Serving Diamond, IL and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Assessed all outlets and changed those that were improperly installed and could damage things plugged into them, and grounded the outlets that were not grounded. 19 recepticles in all. Price was good and arrived on time, and clean."
Serving Diamond, IL and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"Anthony did a.great job repairing my roof top unit very good service."
Serving Diamond, IL and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
I take pride in delivering high quality services and solutions
Serving Diamond, IL and surrounding areas
Approved
In business since 2014
Free estimates
Warranties offered
"Mike came out to the measurement got a new air handler replaced the old furnace/air handler put in a new Goodman for us and made sure the air was working before he left for the day. Took more time as it was a 4th of July weekend. But one man doing the job wasn't bad, cleaned up everything, took the old junk and he even bought his own wasp spray to use on the outside air wasp are really mean you know) Yes, I would use him again."
+2
Serving Diamond, IL and surrounding areas
Approved
Looking to use my 12 years experience in heating and air conditioning to help home owners repair or replace equipment.
Serving Diamond, IL and surrounding areas
Approved
In business since 1997
Free estimates
Emergency services offered
JB Refrigeration, Heating & A/C, Inc., was started to give local home owners the choice of a local highly trained professional service tech. We use the latest material to give you satisfaction plus. Call today.
Serving Diamond, IL and surrounding areas
Approved
Free estimates
Emergency services offered
Credit card accepted
Bateman Built Services\nVeteran-owned and operated, Bateman Built Services provides reliable HVAC, electrical, and home repair solutions throughout Will County and the surrounding areas. With experience in residential and commercial HVAC systems, we specialize in furnace and air conditioner installations, repairs, maintenance, water heater replacements, electrical repairs, and general home improvements. We take pride in honest communication, quality workmanship, and treating every home as if it were our own. Whether you need a quick repair, system replacement, or help with a larger project, we’re committed to getting the job done right the first time.\n\nServices Include:\n• HVAC Installation & Repair\n• Furnace & Air Conditioning Service\n• Water Heater Replacement\n• Electrical Repairs & Upgrades\n• Thermostat Installation\n• Preventative Maintenance\n• General Home Repairs & Improvements\n\nWhy Choose Us?\n✓ Veteran-Owned & Operated\n✓ Licensed & EPA Certified\n✓ Honest Pricing\n✓ Quality Workmansh
Serving Diamond, IL and surrounding areas
Approved
"After troubleshooting we decided to go a different route, But everything worked out ok"
From average costs to expert advice, get all the answers you need to get your job done.
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
Try these 12 top tips to keep your air conditioner working at maximum efficiency. Stay cool, and minimize energy costs with this expert air conditioning advice.
Learn how to save money on air conditioning costs this summer by following this handy guide all about your favorite cooling system.
Is it time for a new cooling system for your home? Check out this guide to get a head-to-head comparison of heat pump vs. air conditioner systems.
Air-source heat pumps are an energy-efficient way to heat and cool your home. Learn the pros and cons of this heating method.
Retrofitting your house for AC is, surprisingly, not too hard. Here’s what you’ll need to consider to make it happen.
