Highly recommended. David and his team are all very professional and knowledgeable. From the virtual review of my project all the way through to completion, everyone was helpful as I navigated the very complex topic of electrifying my hot water and heating system. All members of the team were friendly and patient with my numerous questions. They also were responsive every time I reached out and they completed the project within the timeframe they estimated. If you are doing any energy upgrades or electrification projects, I highly suggest you reach out to Building Efficiency.