Business Details
29 Years
experience
Emergency
services
Your Trusted HVAC Partner in Rockwall, TX
D-N-D Services has been a trusted provider of HVAC solutions in Rockwall and surrounding areas since 1997. Our team of NATE-certified technicians specializes in residential and commercial heating, cooling, and indoor air quality services, prioritizing customer satisfaction and integrity. With an A+ rating from the Better Business Bureau, we offer comprehensive solutions including system installations, emergency repairs, duct cleaning, and energy-efficient upgrades. Our commitment to ongoing factory training ensures our team remains at the forefront of industry advancements. We pride ourselves on transparent communication, competitive pricing, and delivering reliable service that exceeds expectations.Our preventative maintenance programs help extend system lifespans while ensuring optimal performance. Backed by decades of local experience, we serve both homeowners and businesses with personalized attention to their unique comfort needs. Our specialized services include Manual J load calculations, infrared imaging, and indoor air quality testing. We maintain strong partnerships with leading equipment manufacturers to provide trusted product warranties. Customer testimonials consistently highlight our prompt response times, honest assessments, and professional service delivery.
Services
HVAC Repair
Air Conditioning Installation
Furnace Maintenance
Duct Cleaning
Indoor Air Quality
Commercial HVAC
Emergency Service
Details
- Year established: 1997
Highlights and features
- 25+ years of local HVAC expertise since 1997
- NATE-certified technicians for specialized expertise
- A+ rating with the Better Business Bureau
- 24/7 emergency service availability
- Specialists in high-efficiency system installations
Associations and certifications
- Better Business Bureau (BBB) A+
- North American Technician Excellence (NATE)
What people say
Exceptional service experiences
Knowledgeable, cost conservative technicians
Prompt holiday service response
Professional and courteous manner
Repairs under estimate
Services
HVAC Repair
Our certified technicians provide prompt diagnosis and repair of all HVAC system issues, from minor malfunctions to complete system failures. We service all brands and models, offering same-day emergency repairs for critical heating and cooling needs. Our comprehensive repair process includes detailed diagnostics to identify root causes and prevent future issues.
Air Conditioning Installation
We specialize in proper sizing and installation of high-efficiency air conditioning systems tailored to your home's specific needs. Our experts consider factors like square footage, insulation, and local climate to recommend optimal solutions. We offer factory-trained installation for leading brands and provide detailed guidance on system selection and energy savings.
Furnace Maintenance
Our preventative maintenance programs ensure peak performance of heating systems through comprehensive inspections and tune-ups. Services include safety checks, component testing, and efficiency optimization to extend equipment lifespan. Priority service is available for agreement customers with seasonal maintenance reminders.
Duct Cleaning
Professional duct cleaning services remove contaminants from HVAC systems using advanced Rotobrush equipment. We clean supply and return vents, eliminating dust, allergens, and mold that affect indoor air quality. The process includes system sanitization and air quality testing to verify results and ensure healthy home environments.
Indoor Air Quality
We offer comprehensive indoor air quality assessments and improvement solutions including purification systems, humidity control, and ventilation upgrades. Our services address common pollutants and allergens through advanced filtration and air exchange technologies. We provide personalized recommendations based on professional testing and home environment factors.
Questions
What areas do you service?
We serve Rockwall, Garland, Dallas, Richardson, Plano, Carrollton, Allen, McKinney, Princeton, Farmersville, and Greenville.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service with no after-hours fees for maintenance agreement customers.
What HVAC brands do you service?
We service all major brands including Carrier, Trane, Lennox, Bryant, Goodman, and Amana.
Are your technicians certified?
All our technicians are NATE-certified and participate in ongoing factory training programs.
Do you offer maintenance agreements?
Yes, we provide seasonal maintenance plans with priority service, system checks, and filter replacements.
What HVAC services do you offer?
We provide installation, repair, and maintenance for heating, cooling, duct systems, and indoor air quality solutions.
