D-N-D Services has been servicing all brands of HVAC equipment in Rockwall and surrounding areas since 1997. Exceeding residential and commercial HVAC comfort needs is D-n-D Services business. We do it by having genuine concern for our customers’ needs and concerns and our team has years of experience repairing and replacing air conditioning/heating units. We also offer several other services to meet your needs such as Indoor air quality testing, duct cleaning/sanitization, whole home infrared imaging, digital load calculations, and whole home generators.
High efficiency systems? No problem. D-n-D Services has years of experience servicing and installing the latest high efficiency and communicating systems such as or Carrier Infinity and our Amana 18+ Seer lines of equipment. In addition, many affordable equipment and services are available to satisfy all of your heating and cooling needs while meeting your budget.
D-n-D Services is proud to be at the top of The Good Contractors List for air conditioning and heating contractors. If you do need a new air conditioning or heating system, we are proud of our premiere, new central air conditioning equipment installations and happy to give you an honest assessment and quote for a new HVAC system or repair. D-n-D Services is proudly serving Rockwall, Dallas, Plano, Wylie, McKinney, Greenville, and surrounding areas
Residential and Commercial HVAC
Professional technicians specialize in heating & ac repair and service.
Indoor Air Quality Services include air purification, dehumidifiers, humidifiers.
State licensed service for all makes and models air conditioners, gas furnaces, electric heat, and heat pumps.
Don’t panic if think you need a new heating or air conditioning system.
dnddfw does a professional analysis to find out if a repair will meet your needs.
In the event your system does need replacement, we offer competitive prices on premier installations and financing options for peace of mind on your budget.
Proper air duct cleaning does more than help heating and air conditioning systems operate more effectively – air duct cleaning also removes pollutants/allergens contaminating the air. D-N-D Services for a complete, professional air duct cleaning of your entire system to ensure the air you and your family breaths is fresh and clean!
My a/c went out at my house. DND came out and instead of telling me I needed a new unit (like every other a/c company), they found the problem, changed the part, and it's working great now. These guys are honest and very dependable. I highly recommend them!
The BEST a/c company! My restaurant a/c wasn't working very well. One of my friends mentioned D-N-D so I called them. Brian (totally awesome guy!) came out and cleaned my unit up on the roof. My a/c is working like a charm now! This company is dependable, honest, and didn't make me feel ignorant for not knowing why my a/c wasn't working. I HIGHLY recommend D-N-D.
We've used their company twice. They are friendly and fast! My central AC system failed yesterday. I called this morning. They fixed it today! He gave some pricing information on new systems and good advice also.
Awesome customer service very professional and excellent workmanship!