This was a routine check-up and maintenance on our boiler. He arrived on time and performed the necessary cleaning and maintenance. Very knowledgeable and professional.

John, is a very good technician and a very nice and helpful guy.

Very nice guy. Fixed problem quickly.

John servicd our furnace He was on time, very nice , went over placement of Carbon Monoxide detector. He went above and beyond

We were extremely pleased with today’s boiler installation. The guys were prompt and very nice to work with. They got the job done quickly and answered all of my questions. Most importantly, we avoided a potential disaster from my old faulty boiler. Looking forward to working with Keil for many years to come. Thank you!

The guys got here at 7:15 am- as I expected. They worked hard throughout the entire day -never took a break till 3:30- when they finished. They were careful carrying the water tank and furnace parts down the stairs and around tight corners and put down protective carpets to protect the wood floors.They were polite whenever asking me for anything. All this and there was no heat the whole day- it was 50 degrees! It’s still warming up in my house.

yang explained to me everything he performed from the check list and the conditions of each. i have uses keil since 1979 and excellent response for problems and service contracts

The tech was very efficient and personable. I believe he did a great job and fully explained what he was doing. I an extremely pleased with his work.

Friendly and efficient.

He was very thorough and efficient. Very careful about bring ladder and putting on protective shoes as to track in dirt, etc.

Competent and personable service man