Business Details
18 Years
experience
Emergency
services
Trusted HVAC Services in Orlando, FL
Founded in 2008, Duncan's Air Conditioning & Heating is a family-owned and operated HVAC contractor serving Central Florida. As a BBB A-rated business since 2009 and a Trane Comfort Specialist dealer, we combine over two decades of industry expertise with factory-trained technicians to deliver reliable residential and commercial HVAC solutions. Our commitment to quality service and installation has earned us a reputation for resolving complex heating and cooling challenges while maintaining transparent communication and competitive pricing. We prioritize long-term customer relationships through 24/7 emergency support, customizable maintenance plans, and energy-efficient system upgrades.Our team, led by owner Mark Duncana 20-year HVAC veteranservices all major brands while offering specialized Trane product expertise. With service technicians strategically located across Orange, Lake, Seminole, and Osceola Counties, we ensure prompt response times and comprehensive system diagnostics. Our preventative maintenance programs reduce energy costs by up to 10% while preserving equipment warranties, and our financing options make modern HVAC technology accessible to every budget.
Services
AC Service/Repair
AC Installation
Residential Sales
Commercial Sales
Installation
Maintenance
24/7 Emergency Service
Maintenance Plans
Filter Replacement
Air Quality Improvement
Details
- Year established: 2008
Highlights and features
- Family-owned since 2008 with 20+ years of HVAC expertise
- BBB A-rated with no filed complaints
- 24/7 emergency service available
- Factory-trained Trane specialists
- Customizable maintenance plans reduce energy costs by 10%
Associations and certifications
- BBB Accredited Business
- Trane Comfort Specialist
What people say
24/7 emergency support
Professional technicians
Transparent pricing
Effective problem resolution
Energy savings
Services
AC Service/Repair
Our factory-trained technicians diagnose and resolve heating and cooling system issues for residential and commercial properties. With 24/7 emergency availability and 20+ years of combined experience, we restore system functionality while maintaining manufacturer warranties. Our diagnostics identify root causes to prevent recurring problems.
AC Installation
We install energy-efficient Trane and other brand HVAC systems tailored to property size and climate needs. Our NATE-certified technicians ensure proper sizing and installation for optimal performance. We provide detailed product comparisons and financing options to match budget requirements while maintaining system longevity.
Maintenance Plans
Our 16-point inspection program includes electrical component checks, coil cleaning, and refrigerant analysis to maintain peak efficiency. Annual/bi-annual plans reduce energy costs by 10%, extend equipment lifespan, and preserve warranties. Maintenance customers receive priority scheduling and 10% parts discounts.
Commercial HVAC
We service commercial HVAC systems with customized maintenance programs and emergency response protocols. Our team handles multi-unit properties, office buildings, and retail spaces with scheduled maintenance visits and energy optimization recommendations. Commercial clients receive dedicated account management and service level agreements.
Air Quality Improvement
We install REME HALO purification systems that reduce airborne contaminants by 99% while integrating with existing HVAC systems. Our solutions address mold, bacteria, and allergens without sacrificing living space. We provide air quality assessments and recommend filtration upgrades for healthier indoor environments.
People
Mark Duncan
Owner
With HVAC industry experience since 1997, Mark founded Duncan's Air Conditioning in 2008 after working as a service technician and installer. He oversees daily operations while maintaining hands-on involvement in complex installations and customer consultations.
Questions
What HVAC services do you offer?
We provide AC repair, installation, maintenance plans, commercial HVAC services, and indoor air quality solutions for residential and business clients.
Are you available for emergencies?
Yes, our technicians are available 24/7 for HVAC emergencies with no overtime charges for maintenance plan members.
Do you service all AC brands?
We service all major HVAC brands, though we are certified Trane Comfort Specialists offering specialized expertise for Trane systems.
What areas do you serve?
We primarily serve Orange, Lake, Seminole, and Osceola Counties in Central Florida with extended service availability.
Do you offer financing options?
Yes, we provide financing options for HVAC installations and major repairs to qualified customers.
What maintenance plan benefits exist?
Our plans include priority scheduling, 10% parts discounts, energy efficiency optimization, and warranty preservation through regular system inspections.
Reviews (4)
Lee Peyton
Oct 27, 2021
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Positive:Professionalism,Punctuality,Responsiveness
I called this morning and they had someone out by early afternoon. George was fantastic! He identified the problem, made the repair and stayed until he was sure it was working properly. I highly recommend Duncans for all of your AC and heating needs.
Services:Repair AC,Install thermostat
I called this morning and they had someone out by early afternoon. George was fantastic! He identified the problem, made the repair and stayed until he was sure it was working properly. I highly recommend Duncans for all of your AC and heating needs.
Services:Repair AC,Install thermostat
Sybil Duncan
Oct 21, 2021
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The worker was cordial and explained exactly what he was doing. My garage was flooded after a previous repair man came to do the routine maintenance service on my AC. Your technician asked me about the location of an exit pipe outside of the house. He stated that he lo
oked outside and was unable to find it. He stated that he could attach a temporary drain pipe to the AC unit in the garage. This would stop the water from flooding my garage. I agreed. A bucket was placed under the pipe. He stated that I would have to periodically empty the bucket so that it would not overflow. It's now 9 am, almost
oked outside and was unable to find it. He stated that he could attach a temporary drain pipe to the AC unit in the garage. This would stop the water from flooding my garage. I agreed. A bucket was placed under the pipe. He stated that I would have to periodically empty the bucket so that it would not overflow. It's now 9 am, almost
Bruce Woloshin
Aug 29, 2021
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I called about 9pm last night talked with the answer service and got a call back from Jacob less than 15 minutes later. Jacob set me up for first thing in the morning, came out and got my ac running by replacing the capacitor fairly quickly. Jacob was very knowledgeable and friendly and now I will call Duncan for all my AC issues. Thanks again.
Shaydey
Aug 21, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Ruddy was professional, knowledgeable, and explained everything he did or was doing. Prices are reasonable and the repair and service was quick and efficient. Great job!
Services:Repair AC,AC maintenance
Ruddy was professional, knowledgeable, and explained everything he did or was doing. Prices are reasonable and the repair and service was quick and efficient. Great job!
Services:Repair AC,AC maintenance
