My experience: Gore Range Homes LLC had its start around 2010 and its agent and manager is Fred Niggeler. GRH, LLC, Fred Niggeler was hired to build a custom home in Silverthorne, CO in March of 2014. It was substantially completed in February 2016. Having built two other homes prior to this 1000 mile long distance build I am not a novice. This project experience, after the contract was signed, was one of the worst things I have ever come through. And there are still problems with GRH and Fred Niggeler to this day revolving around this house. Once the contract was signed Fred Niggeler became someone I didn't recognize and someone I wouldn't have chosen to know or work with had I known what was coming. Problems include failing to follow architects' plans, changing plans without approval, improper installation of siding, windows, house wrap, flashing and placing the sink, wall faucet, light off center in the powder room on a 31' wide wall, major invoicing irregularities. Fred also tried to make some costly design decisions not his to make and certainly not what he was hired for. The county this house was built in, Summit County CO, requires a house to pass a blower door test for tightness. My house failed the test but I was not informed of this by Fred Niggeler. He told me a test was not done but an energy company sent me the results of the test... it did not pass. Fred Niggeler has left this newly built house with a powder room that is not normal. He has refused to take responsibility. Fred and the cabinet maker changed the plan but did not tell me what was going on even with months of opportunity to do so. I saw the off centered items on my final inspection. I had to retain a Colorado attorney to enlighten Fred Niggeler that he had contract obligations to finish in 2016. You see, Fred tried to breach and abandon his own contract in 2016 and not finish his work. In Nov. of 2016 when it got cold here in Colorado, I noticed areas where cold air was blowing/leaking in. I sent Fred Niggeler, GRH, some videos in Nov. 2016 that showed the air blowing in but Fred Niggeler never responded to my reports thus violating the warranty portion of his contract. I hired an energy consulting company to do another blower door test but this time with an infrared scan. My house had failed the original blower door test in Dec. 2015 but Fred Niggeler told me a test was not done. It was. Numerous air leaks were observed in Nov. 2016 and the house again failed the Summit County mandated number on the blower test done in Dec 2016. My new construction is not tight but very leaky. The entire exterior building envelope designed to protect against the harsh Colorado weather (windows, house wrap, flashing) has been assembled incorrectly and against the architects' directives and the manufacturer's directions and we have had an expert inspection that verifies this. The air sealing on the interior is defective (proven by failed blower door tests) and a third party sealing certificate (that GRH holds up as the holy grail) that verified "correct" sealing in the home has been called into question and discredited. Their "rater verifications" were faulty and inaccurate. Things were checked off as rater verified when they were and are not sealed adequately and hence the failed blower door tests. As you can surmise this poorly delivered project by GRH is now in the legal arena. At the end of the day one has only their character and reputation that permanently remains with them. Why anyone would intentionally choose to put a black mark next to their name is not comprehensible.