My home gas bill recently increased significantly compared to previous winters. Technician quickly identified the problem and explained it to me. He ordered a needed part and returned to install it the following day. He fully explained why the efficiency went down over time and we discussed how to prevent future efficiency declines. The repair was completed quickly and efficiently. Clean up was very good. While working on the boiler, I asked various questions about proper operation of the heating system and those questions were completely answered and the technician offered useful suggestions. I was completely satisfied with the work that was done. Time will tell if my natural gas consumption will return to historical averages. I did enroll in the continuing PM maintain program offered by Armstrong/ McDonald. If past efficiency does not return, I will contact Armstrong for additional review. in closing, we were very satisfied with the service we received from Bob P
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