Evergreen Eastside Heat & AC

Purchased a new Trane Furnace and Tankless water heater. The furnace was installed gas regulation was not set by the installer. PSE came out and identified the problem. The furnace has not worked properly since installation. The furnace waste vent was installed too close to the gase meter in violation of code. The Navien tankless was also installed incorrectly. The plumbing for the service valves was installed upside down, preventing it from being serviced. Called Evergreen several times, they apologized and said their manager was out of town on a company retreat. Weeks later they agreed to send someone out. They no-showed and refused to answer my phone calls since. I paid a plumbing company to fix their plumbing failure and hired a different heating AC company to fix their furnace install failure. Would not use this company again.