DML & S Air Conditioning & Heating

Donny and Russ are the most impressive professional — trustworthy people— to have ever done any work in our home. I can recommend them easily —and highly— they are incredibly knowledgeable and so honest and you will feel like all of your most serious home-related HVAC issues are in the best of hands. And for sure, they are completely reliable-and very nice as well!! I have been using this company for years and tell everyone I know how lucky we are to have found them.

Don is a true professional and has been serving Suffolk and Nassau for years!!! About 13 years ago he and his dad did a major repair and today Don returned to provide timely, honest and fair service to get my system up and running. Less than 24 hours I went from hot and sticky with my wife complaining, to cool and comfortable. Well done and thank you Don.

I have been working with Donny from DML&S for close to 10 years. He is very good. Punctual, reliable and when his team leaves my house it's like they were never there. Very clean work. His prices are always fair and they stand by their work. I have recommended him to 4 of my friends and they are all very happy.

Donny from DML&S inspires confidence and trust. Made a great first impression when he serviced my mother-in-laws A/C ~5 years ago. I have used him since and recommend him to others without reservation. Why? Reliability, competency / quality of workmanship, neatness, and INTEGRITY. The icing on the cake is that Donny is a really nice person.

Donny and Mike have always been extremely honest, on time, and have done right by me for my heating and A/C needs. When I have an emergency, they always come quickly and are pros at what they do . Highly recommend DML&S!