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Since 1976, when something isn't working in Central Illinois, home and business owners have consistently made one call -- Wm. Masters. We provide commercial and residential services to our family, friends, neighbors and community right here in Central Illinois. Whether you need residential or commercial services, with a team of 80 employees, rest assured that we will take care of you. Our expert technicians are equipped with the most up-to-date training and tools to provide you with prompt and dependable service 24 hours a day, 7 days a week.
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We perform ALL types of jobs; from the installation of a single electrical receptacle or an additional heat run in your basement, to rewiring your entire house, installing an entirely new bathroom, or providing new Electrical, HVAC, and Plumbing systems to large commercial and industrial buildings!
Masters takes pride in building lifelong relationships with our customers and community, and are grateful for the loyal customer base that has kept us in business for over 40 years. Masters is an A+ rated and accredited business with the Better Business Bureau. To help us spread the word about the service we provide and to continue to assist us in our efforts to improve the service we provide, we welcome customers to give us feedback and review our business and technicians.View Wm. Masters on Yelp and view and post reviews for Wm.
Don't get overheated due to a bad service experience or freeze waiting for help to arrive. Wm. Masters experienced team and quality products have been organized crafted to make your life easier and home or business function properly. The temperature and air quality in your home will have a direct impact on you and your family.
At Wm. Masters, everything we do is focused on providing outstanding customer service and caring for each customer. Our phone line is open, and we're ready to help 24 hours a day, 7 days a week, making sure you have access to a professional customer service representative at any hour for any reason.
Reviews (10)
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Joe Hack
Jun 11, 2022
Thanks to Buster and Gage for their excellent and efficient work installing our HVAC system. They were pleasant, hard working, and provided what they were going to do clearly and updated as they went along, and also how a problem discovered will have a followup from the office. They also were very careful with their movements in and out of the house and mindful to not cause any damage or mess. Their cleanup after installation was very well done. Overall very pleased. One possible problem discovered later with the system was called into the office for a review.
Pam Arreola
Jun 06, 2022
My AC went out at the same time as my furnace! Todd came out looked it over and was super quick (same day) getting me a quote. It had been in the 90'S that week and I have a sick elderly person in the home. There quote was great, he was not only professional, but understanding and worked with me to get my equipment installed in a timely manner. Hunter and Shane were here with-in a week and not only installed my system, but were super informational and made sure I understood how to properly care/run my new system! McMasters will continue to be my go to company! Thank you so much!
E. R.
May 29, 2022
Recently had my A/C died and contacted Wm. Masters for estimate and install. About 4 years ago they installed my furnace and was very happy with the furnace and service. Last week Tanner and Zac installed my new A/C in record time, they were very professional and courteous throughout the process. I will use Masters again for any future needs. Thanks!
Meg Bottorff
May 23, 2022
When our AC went out after 31 years, we called Wm Masters to determine what our options were. We initially worked with Shawn who looked things over and provided us with options to replace just the AC, or both the AC and the furnace (also 31 yrs old). After deciding to replace both, Barry helped with scheduling and signing documents to move forward. Buster and Gage completed the install on the scheduled day.

They were on time, courteous, completed the replacements in a timely manner, cleaned up everything, and answered any questions that we had. The entire process went very smoothly from start to finish. Thanks to the entire team that we worked with. Shawn, Barry, Buster and Gage!
John Shaver
May 23, 2022
Zac and Tanner did an outstanding job installing our new HVAC system, completing the project in approximately six hours, providing superior workmanship throughout the entire process. They were knowledgeable, courteous, professional, and showed remarkable respect for our home, lawn, and landscaping. We have used Masters for our HVAC, plumbing, electrical, and duct cleaning needs and every interaction with the company has exceeded our expectations. Highly recommended for anyone seeking quality work at a reasonable price.
Sheila Robles
May 05, 2022
We replaced our 30+ year old heating and cooling system with Wm Masters. They made it rather easy. Their technicians (Zac and Tanner) were great, they were knowledgeable and helpful. The install was scheduled in less than a week and completed in less than a day. We highly recommend Wm Masters! Services: Heating system installation, HVAC system maintenance, Install AC
Jennifer Maloy
May 01, 2022
Buster and Gage did a wonderful job with the furnace and AC replacement/installation. They arrived on time and got the job done sooner than I had expected. The sales person did a wonderful job as well getting us set up with the best system for our needs. Thanks Services: Heating system installation, Install AC
Angela Sweet-Thornton
Apr 12, 2022
Jonathan and Zac were timely, professional and we were very confident in their work. We had a full HVAC replacement. They took the time to protect our flooring and were very cautious in both the removal and installation. The job site was meticulously clean when they were finished and they even took the time to explain the digital thermostat and what to expect with a high efficiency system. We could not be happier or feel more confident in our decision to choose Wm Masters. Hire the yellow truck guys- they are awesome!
Jaci M.
Dec 09, 2021
I've always had great experiences with Wm. Masters so I call them with whatever I need (HVAC, plumbing, and electrical). This time I needed to finish getting the hot tub set up. My husband is deployed and I wanted to have it set up for him as a surprise before he comes home for Christmas. Leslie and Josh were amazing for squeezing me in. Josh did great work and was so professional.

He was so accommodating fitting me in around the rain and his really busy schedule. The work is perfect! I'm so pleased and I know my husband will be too! I appreciate it so much!
Sandra Leman
Dec 07, 2021
My A/C went out last summer, and I knew it was time to replace the furnace as well. I've waited to review until both were used, and I've found that both work well. Wm. Masters, Inc, responded quickly to my need for a new system. They were helpful in answering my questions about various models and helping me choose the one that is best for me. They set up the installation quickly, came on time, and did a great job. I am very happy with the system and their service.