Best Gas Line Installation in Phoenix AZ

Great guy who came for estimate on 2 Navien Tankless heater units. Still deciding.

Great company. Gets the job done right the first time. They also are very friendly and clean up after themselves.

Amazing staff, Technicians and response time.

Steve was very good at providing us information on buying new units and also getting the installation done on time. We had a few issues with getting a roofer to expand the hole for the heating vent, but Steve stuck with it and made sure it got done.

Absolutely PHENOMENAL service. We had an issue where our smoke alarm went off and we called another company that came out and told us our whole unit needed to be replaced (after we had a maintenance plan and they had been there a month before and said everything looked perfect with the unit). We reached out to 911 heating and cooling as they did our home inspection and we trusted their opinion. Rob and Robert helped figure out the issue. It wasn’t an easy job but they were extremely helpful and we trusted their opinion. I really was so impressed with how hard the worked to make sure our unit was working well. We will always use this company and recommend them to everyone!!!!

My first experience with this company was very good. Then I called them back for another issue. Felt the assessment was very incomplete, was charged $79 for the visit and never received an estimate! When I called, she said the techs phone wasn’t working to send the estimate? They cashed my check anyway- not happy!