I had a deal from a website which closed, so I was afraid I won't even be able to redeem it... Not only I was able to redeem it I was extremely pleased with the service.
All reviews seem positive
Air Doctor Duct Cleaning & Lining improves cleanliness and air flow, reduces dust and allergies, and saves energy. In fact, air duct system cleaning increases the flow of warm or cool air through your system, allowing it to run more economically and efficiently. A clean air duct system can operate more efficiently than a dirty one, allowing you to save up to 30% on your utility bills. Clean systems are also less likely to break down and will have a longer life span.