Rated 4.3 of 5

Ensuring Your Comfort Relaxation Health All Year Round.

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.

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Carrier
Amana
About Us

Need to Schedule AC Maintenance or an Inspection?

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 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.

Air Conditioning Repair | Heating
Don’t panic if you think you need a new heating or air conditioning system. DND Services technicians will do a professional analysis to find out if simple repairs will solve your problem.
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Duct Cleaning
Your ventilation system could be a breeding ground for dust mites and home to millions of dust particles, pollen and mold and mildew – and when you breathe in air, you are inhaling those contaminants.
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Heat | AC Installations
Want to find out if your heat and air systems need to be upgraded to a more efficient, comfortable, environmentally friendly unit that can save you money? Upgrading now could reduce your energy bills. If so, give us a call today.
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Indoor Air Quality
Temperature, humidity, cleanliness, freshness, odors, and noise contribute to your home indoor air quality. Poor indoor air quality can impact your family and a businesses processes, and productivity.
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Commercial HVAC
Your customers and employees are as important to you as your HVAC systems are to us. We offer commercial and industrial hvac maintenance and installation of cooling and heating units.
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Maintenance
Don’t panic if you think you need a new heating or air conditioning system. DND Services technicians will do a professional analysis to find out if simple repairs will solve your problem.
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Retrofits
Don’t panic if you think you need a new heating or air conditioning system. DND Services technicians will do a professional analysis to find out if simple repairs will solve your problem.
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AC Repair Service
Whether you have a brand new HVAC system or a dependable relic from the past, Our professional technicians can keep them in top operating condition. We service all makes and models, old and new.
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Popular Services

Proudly Serving Rockwall and Surrounding Areas Since 1997

If your air conditioning system isn't functioning correctly, whether it's due to a broken A/F or condenser unit, an outdoor overflow valve leak, or simply not cooling, D-N-D Services Heating & Air Conditioning is here to help. Our team possesses the skills, expertise, and integrity needed to promptly resolve any A/C issues you may encounter.

Air Conditioning Repair
Air Conditioning Repair

A/C Maintenance
A/C Maintenance

Duct Cleaning
Duct Cleaning

Thermostat Installation
Thermostat Installation

At D-N-D Services Heating & Air Conditioning, we know heating problems can be a major inconvenience. Our experts are adept at quickly identifying and diagnosing nearly any issue with your heating system. We provide detailed quotes to help you make informed decisions about repairing your furnace and getting it back up and running efficiently.

Furnace Repair
Furnace Repair

New Installation
New Installation

Furnace Tune Up
Furnace Tune Up

At D-N-D Services Heating & Air Conditioning, the health and well-being of our customers is our top priority. We offer a wide range of indoor air quality products to help ensure your family remains healthy and comfortable.

IAQA Certification
Air Purification
Air Purification

Humidity Control
Humidity Control

Ventilation
Ventilation

#1 In Customer Satisfaction

Regular Maintenance: The Key To Preserving The Life Of
AC And Heating Systems

At D-n-D Services, we want to ensure that your home and/or business is always cool in the summer and warm in the winter – and that your heating and air conditioning systems are safe. Proper and regular maintenance is the key to extending the life of heating and air conditioning systems – and you can depend on our trained, professional technicians to take excellent care of all your heating and ac needs.

What's Included

Our Maintenance Services

Seasonal | yearly preventative maintenance plans
Top notch friendly service
Trained, certified HVAC technicians you can trust
Quality parts and service*
No afterhours/holiday fees for Maintenance Agreement customers
Priority service for Maintenance Agreement customers
Our Specialized Services

Complete Manual J load calculations for heating and cooling
Infrared imaging
Video duct inspections
Blower door testing
Duct cleaning and sanitizing
Indoor Air Quality testing
Particle element

Feel free to ask about our Indoor Air Quality products.

We want you to have the healthiest indoor air possible. For healthy indoor air quality you may need your ac systems duct cleaned , repaired, or replaced. Infilterents can get in leaking or damaged duct and into the air you breathe.
Service Areas

We're Just Around the Corner

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.

Caddo Mills
Rockwall
Garland
Dallas
Richardson
Plano
Carrolton
Allen
Mckinny
Princeton
Farmersville
Greenville
Amana HVAC

Amana central air conditioners are perfect for maintaining a cool and comfortable home, even during the hottest days. With Amana, you can enjoy exceptional performance, durability, and comfort without compromise. For optimal energy savings, select an Amana air conditioner with the highest SEER2 rating, as higher SEER2 ratings indicate more energy-efficient systems.
Up to 22.5 SEER2 efficiency
ComfortAlertTM diagnostics
Compressor sound cover
Efficient condenser motor
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Our Promise

Quality that is Guaranteed

We aim to exceed your needs and concerns. We do it by having a genuine concern for our customer’s needs and sending our service repair technicians routinely to Factory Training classes.

Our Promise

Exceeding expectations with Service

Our service technicians are NATE certified and D-N-D Services has an A+ rating with the Better Business Bureau and a Texas licensed HVAC contractor.

Our service repair technicians routinely attend Factory Training classes
A+ rating with the Better Business Bureau
NATE certified service technicians authorized to work on all brands of HVAC equipment
Specialists in high efficiency and foam insulated homes
Rated 4.3 Stars

What Customers Are Saying

At D-N-D Services Heating & Air Conditioning, we attribute our continued success to our unwavering commitment to customer satisfaction and unwavering integrity. We take great pride in delivering exceptional service and building lasting relationships with our clients. We would be honored to have you join our ever-growing list of satisfied customers and experience firsthand why D-N-D Services Heating & Air Conditioning stands out from the rest.

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D-N-D Services are the ones to trust for all your HVAC needs! I've used them for 3 years now and have had EXCEPTIONAL service experiences each time. The technicians (Brian) are knowledgeable, cost conservative, and thorough. The office manager, Kristin, is always friendly and prompt in addressing my service needs. It's never fun to have HVAC problems, but I have peace in knowing I will receive HONEST and educated advice along with kind and considerate customer service.

Misty Otto

We finally had some rain yesterday, Labor Day weekend.YEA! My air conditioning quit working during the storm. This morning I called DND SERVICES first thing and being a holiday I was surprised they answered and within 90 minutes Colten arrived checked it out and replaced the thermostat and my house is cool again. This is not the first time I called these folks (it was the furnace last time) and they have always shown up and completed the job in a timely and courteous manner.

Darlene Stinnett

These folks are courteous and professional in every way. They did a complete replacement of an older unit in just one day. They even took care of a few things that were not in the contract at no additional charge. I will certainly use them again and you should too!

Bill Stiles

Honest, responsive, talented technicians. No hard sells and more than one repair has come in UNDER estimate. Highly recommend. Colton is the man!

-Tim Allen

I have personally used D-N-D Services, Inc. for several years. In addition, I recommend them to all of my clients, family, and friends. They are a top-notch company, very responsive, and very professional. I trust them completely and can't recommend them highly enough!

Missy Karnes

Highly recommend DnD Services for your HVAC needs! Kristin got us scheduled ASAP when our A.C. Went out in 90°-100° weather!!! Technician, Chaz, was very kind & knowledgeable & got us up & running in about an hour! Will use their services again.

Tayler T