Lincoln Air came out originally to help with a NEST thermostat install after another installer said it could not be done- they got it working no problem. A year later when it was time to replace my entire HVAC system they responded to my RFP and against several other companies won my business with the best price offer. Their service during and after the install has been simply excellent. They continue to provide seasonal maintenance checks per the contract and proactively reach out to schedule these and remind me. Curtis, the technician who has worked with us, is really good, and a man of his word. Highly recommended.