I called several service providers in Toronto to replace my tankless water heater, but, because the unit was in a small closet most said they couldn’t do it; only one submitted an estimate. Infiniti-air not only identified two replacement units that were compatible with the space limits, but came in with a quote 20% lower than the only other offer. Their technicians did an excellent job removing the old unit and installing the new one. I was prepared to accept some cutting of the closet to facilitate the installation but the technicians were able, with great difficulty, to install it in the confined space without any damage to the existing structure. I would unreservedly recommend Infiniti-air for any plumbing or HVAC issues.