Call Now
Website
Call
Business Details
27 Years
experience
Your Trusted Atlanta HVAC Partner for Installation & Maintenance
Since 1999, D & L Heating & Air has been the trusted HVAC provider for residential and light commercial clients across Marietta and metro Atlanta, GA. Founded by industry veterans Mike Durden and Randal Lowe, our reputation is built on over 25 years of combined expertise, delivering reliable heating, ventilation, and air conditioning solutions. Recognized with multiple Lennox Circle of Excellence awards, we prioritize customer satisfaction through punctual service, well-stocked trucks, and technicians trained to address all HVAC needsfrom new construction installations to energy-efficient upgrades.

Our financial stability ensures competitive pricing, while our commitment to quality has earned us partnerships with top Atlanta homebuilders and a loyal client base spanning from apartments to luxury estates. We specialize in reducing energy costs through SEER-rated system upgrades, preventive maintenance programs, and tailored consultations that analyze system efficiency and airflow. With a focus on long-term relationships, we guarantee transparent communication, timely payments to suppliers, and a promise to remain a dependable HVAC partner for the Atlanta community.
Services
HVAC Installation System Replacement Preventive Maintenance Energy Efficiency Upgrades Emergency Repairs
Details
  • Year established: 1999
Highlights and features
  • We have over 25 years of combined HVAC expertise in the Atlanta market.
  • Our technicians arrive in fully stocked trucks for immediate repairs.
  • We are a top 1% Lennox dealer with Circle of Excellence awards.
  • Financial stability ensures competitive pricing and timely supplier payments.
  • Specialize in SEER-rated upgrades that reduce energy bills by 30-50%.
Associations and certifications
  • Lennox Circle of Excellence
Services
HVAC Installation
We install high-efficiency HVAC systems tailored to residential and light commercial properties. Our technicians ensure proper sizing and airflow for optimal performance. Clients benefit from reduced energy bills and enhanced indoor comfort through modern SEER-rated equipment.
Preventive Maintenance
Our biannual maintenance program inspects electrical components, filters, and condensate systems to prevent breakdowns. Regular servicing extends system lifespan and maintains manufacturer warranties. Clients receive priority scheduling and detailed efficiency reports during each visit.
Energy Efficiency Upgrades
We recommend SEER-rated system replacements that cut energy use by 30-50% compared to older models. Upgrades include programmable thermostats and air quality accessories. Clients see immediate savings on utility bills while reducing environmental impact through advanced HVAC technology.
System Replacement
We replace outdated HVAC units with energy-efficient models designed for Atlanta's climate. Our process includes load calculations and ductwork analysis. Clients receive free consultations to determine cost-effective replacement timelines based on system age and repair history.
Commercial HVAC Services
We service office buildings, retail spaces, and warehouses with customized HVAC solutions. Our team handles large-scale installations and retrofits for commercial properties. Clients benefit from scheduled maintenance plans and emergency repair availability during business hours.
People
Mike Durden
Co-Founder
With over 25 years in Atlanta's HVAC industry, Mike Durden co-founded D & L Heating & Air to deliver reliable residential and commercial solutions. His expertise in system design and energy efficiency drives our commitment to quality.
Randal Lowe
Co-Founder
Randal Lowe brings decades of HVAC and plumbing experience to D & L Heating & Air. As co-founder, he focuses on technical training and ensuring every client receives award-winning service from our Lennox-certified team.
Questions
What HVAC services do you offer for residential clients?
We provide installation, repair, and maintenance for residential heating and cooling systems, including energy-efficient upgrades and SEER-rated solutions.
Are your technicians certified and experienced?
Yes, our team includes certified HVAC professionals with over 25 years of combined experience in the Atlanta area.
Do you service commercial properties?
Yes, we handle light commercial HVAC needs including office buildings, retail spaces, and warehouse complexes.
What are SEER ratings and why do they matter?
SEER (Seasonal Energy Efficiency Ratio) measures cooling efficiency. Higher SEER ratings (minimum 13 today) reduce energy consumption by 30-50% compared to older systems.
How can I schedule maintenance for my HVAC system?
Call 770-423-3364 during our office hours (8:00AM-4:00PM Mon-Fri) to schedule biannual maintenance visits for optimal system performance.
What makes D & L Heating and Air different from competitors?
We combine 25+ years of local expertise, Lennox Circle of Excellence awards, and financial stability to offer competitive pricing and guaranteed on-time service.