Matt in Cambridge

Customer service, and communication Is unparalleled. I continue to call these guys, especially after finding a leak in the kitchen while on a conference call. A quick emergemcy email had a plumber onsite, and repair effected, before I was off the phone. My experience of the folks at Cornerstone has been great.

My wife, and I finally decided to go ahead with our dream of a master suite addition above our garage. Based on our experiences with Delta Air at a couple of our rental properties we invited Scott to evaluate the existing HVAC system in our own home. He could have talked us into a new furnace, and AC unit but happily he reported that the furnace was adequate for the additional square footage (huge savings!). Unfortunately the existing AC unit would not be sufficient. Instead of installing a new AC on the furnace he suggested a ductless heat pump for just the addition. I doubted him but he educated us on the limitations of a system in the basement providing the comfort we want in our new master suite. I was worried the system would be loud (similar to unpleasant hotel experiences) but he assured me it would be very quiet, more efficient, and much better value for money than any other option. I had the privilege of meeting the professional install team of Steve, and Jeff who installed new duct work from the furnace to the new addition and did a great job (They were more than happy to to accommodate our ever changing minds!). However, the star of the show was the Dakin heat pump they installed above the ceiling of our walk-in closet that is ducted to our master bath and bedroom. We couldn’t be happier! It is hidden above the ceiling, quiet to the point we don't hear it, and allows us to keep our bedroom just as we want it. We can close the door and keep the house at one temperature and our master at another. No need to waste energy cooling the master suite during the day. For professional, and honest advice on how to deal with an addition or expansion, call Scott and Delta Air Systems.