I would not recommend this company. 12 yrs after building our house, the new owners have massive plumbing issues. Pressure Valve has gone...a very rare occurrence but a costly insurance claim and in the middle of that claim a leaking membrane in our shower has them with more repairs. Biggest issue at time of Construction in 2005 was that they insisted they knew how to install a Viessmann system and they did not. Home Warranty and certified Viessmann professionals had to be called in but it was too late....system was already installed and couldn't be made right....only repaired.