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"Williams & Associates replaced an ancient, very large old boiler in my very large house. Bruce calculated the necessary size and found a suitable boiler. He and his crew thoroughly cleared the radiators and lines before removing the old boiler and installing the new one. They checked all the radiators and added new valves as needed during a lengthy checkout. It took several days to do all the work. Throughout, Bruce explained what they were doing and why as well as recommending changes/additions to the original proposal. They were even cheerful about removing the original "Mary Jane" from the basement. I would definitely recommend them to anyone using steam heat. Great job!"

"Timely, accommodating, and professional. Highly recommend Mull Bros. 75 years in business says it all! Wonderful staff and installers!"

"This company responded quickly to my emergency call faster than calling cng with an emergency. He was very personable and diagnosed the problem with proficiency. Serviced my home and restored the heat which warmed not only my home but my heart. Definitely Recommend this Company! Excellent!"

"Technician arrived on time for appointment. Greg was wonderful!!!! Explained his process and patiently answered all my questions. Excited to have local business to maintain our boiler services."

"Thetechnician was friendly and did a great job of servicing my boiler and mini splits"

"It got done, unfortunately required a full system replacement."

"The customer response is exceptional. The installation of my heat exchanger was done in a timely, professional way. I am very happy."

"Tech found that thermostat had hidden switch under cover. He suggested a better quality programmable thermostat which he installed & is running great."

"They showed up early. I needed some work on my boiler that had to be schedule for another day. The person who came called the office to schedule the appointment they gave him the ok to fix it the same day. They ended up servicing both boilers. The work was great and I would use them again."

"Never received quote for the service. They contacted me ask for a picture of the old boiler which I sent but never was contacted by them again."