Working with David, Sarai and SumZero was one of the best experiences I've had working with any home renovation comany! We hired SumZero to update our HVAC system with heat pumps. They replaced our existing ducted A/C system and installed supplementary ductless heads to help cover our heating needs. The things that impressed me most about SumZero was: 1. The estimate process. David talked to us about our goals and presented 4 different options are different price points and let us think about it and make adjustments with no pressure and quick responses! 2. Going above and beyond! SumZero completely handled the process of applying for relevant rebates and zero-interest loans offered by the state. They also coordinated removal of our old oil furnace and tank, even though they don't do that themselves! 3. The price was excellent. I got several estimates, and SumZero's price was very fair, and combined with state incentives, made it possible to completely update our system! We have been through the end of one winter and the hottest part of summer, and so far the system is working perfectly and we are very comfortable!
