Business Details
16 Years
experience
Emergency
services
Trusted HVAC Services in Dawsonville, GA
Founded in 2010, Duncan Heating and Air Services is a family-owned business built on decades of combined industry experience. Our team, led by third-generation HVAC professionals, specializes in residential heating and cooling solutions with expertise in Trane and Daikin systems. We serve North Georgia communities including Dawsonville, Cumming, and Gainesville, offering installation, repair, and preventative maintenance services. Our commitment to honest service, technical excellence, and customer satisfaction has earned us a trusted reputation in the HVAC industry.We maintain rigorous quality standards through comprehensive system evaluations, proper equipment sizing, and energy efficiency optimization. Our technicians receive ongoing training to stay current with evolving HVAC technologies while maintaining traditional values of integrity and workmanship. We guarantee reliable service delivery through structured maintenance programs and transparent communication with every client.
Services
Air Conditioning Installation
Air Conditioner Repair
Duct Installation
Duct Cleaning
Furnace Repair
Preventative Maintenance
HVAC System Replacement
Emergency Repairs
SEER Rating Consultation
Duct Sealing
Details
- Year established: 2010
Highlights and features
- Family-owned business with 15+ years of local HVAC expertise
- Specializes in energy-efficient Trane and Daikin system installations
- Provides 24/7 emergency repair services for critical HVAC failures
- Offers comprehensive preventative maintenance programs with seasonal checks
- Financing options available for major HVAC system replacements
What people say
Fast response
Personable service
Knowledgeable technicians
Fair pricing
Reliable repairs
Services
Air Conditioning Installation
We provide professional air conditioning installation services tailored to your home's specific cooling needs. Our technicians assess your property's square footage, insulation quality, and existing ductwork to recommend the optimal system size and SEER rating. Specializing in high-efficiency Trane and Daikin units, we ensure proper installation that maximizes energy efficiency while minimizing operating costs. Our installation process includes comprehensive system testing and personalized operation guidance for homeowners.
Preventative Maintenance
Our preventative maintenance program ensures peak HVAC system performance throughout the year. Technicians perform seasonal inspections covering thermostat calibration, electrical components, refrigerant levels, and safety controls. We clean critical components, lubricate moving parts, and identify potential issues before they become emergencies. Regular maintenance extends equipment lifespan, improves energy efficiency by up to 30%, and maintains manufacturer warranty validity. Clients receive detailed service reports after each maintenance visit.
Duct System Services
We offer complete duct system solutions including installation, repair, and sealing services. Our technicians evaluate existing ductwork for leaks, improper sizing, and insulation deficiencies. We repair damaged ducts, straighten crushed flex ducts, and seal leaks using mastic or metal tape. All repairs include R-6+ insulation in unconditioned spaces and airflow balance verification. We also install new duct systems with proper sizing calculations to ensure maximum HVAC efficiency and indoor comfort.
Furnace Repair
Our furnace repair services address heating system emergencies and performance issues. Technicians diagnose problems with heat exchangers, ignition systems, and gas valves while checking for carbon monoxide leaks. We perform emergency repairs for complete system failures and scheduled maintenance to prevent breakdowns. All repairs use manufacturer-approved parts and include safety testing. We service all major brands while specializing in Trane and Daikin systems with guaranteed workmanship.
System Replacement
We help homeowners select and install new HVAC systems when repairs become inefficient. Our replacement process includes load calculations to determine proper system size and SEER rating recommendations. We handle complete system removal and disposal while ensuring proper electrical and gas connections. Financing options are available for qualifying customers. New installations include programmable thermostat upgrades and comprehensive system education to optimize homeowner comfort and energy savings.
People
Cole Duncan
Owner/Operator
Third-generation HVAC professional with 15+ years of industry experience. Leads daily operations while maintaining hands-on involvement in complex service calls. Graduated from HVAC technical school and holds multiple manufacturer certifications. Oversees all installations and major repairs personally to ensure quality standards.
Raymond Duncan
Founder
Established the company in 2010 after 30+ year career in HVAC research and development. Provides technical guidance and quality control oversight. Specializes in system diagnostics and energy efficiency optimization. Mentors technicians on advanced troubleshooting techniques and equipment innovations.
Cathy Duncan
Office Manager
Manages administrative operations including scheduling, customer service, and financial oversight. Coordinates emergency service calls and handles client communications. Ensures smooth business operations through organized record-keeping and process optimization. Serves as primary client contact for billing and service inquiries.
Derek Duncan
Senior Technician
Certified HVAC technician with specialized training in Daikin and Trane systems. Handles complex installations and emergency repairs. Performs system diagnostics and recommends efficiency improvements. Maintains equipment certifications and trains new technicians on proper service procedures.
Spencer Duncan
Service Technician
Experienced technician focused on residential HVAC maintenance and repairs. Completes preventative maintenance programs and handles service calls. Specializes in duct system evaluations and indoor air quality improvements. Assists with emergency service response and client education on system operation.
Questions
What areas do you service?
We serve Dawsonville, Cumming, Gainesville, Dahlonega, Alpharetta, and Johns Creek in North Georgia.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency repair services for critical heating and cooling system failures.
What HVAC brands do you work with?
We service all major brands and install any major brand, with specialization in Trane and Daikin systems.
How often should HVAC maintenance be performed?
We recommend bi-annual maintenance with fall checks for heating systems and spring checks for cooling systems.
Do you offer financing options?
Yes, we provide financing options for qualifying customers needing major HVAC system replacements.
What's included in your maintenance program?
Our program includes seasonal system checks, component cleaning, safety inspections, and performance optimization for both heating and cooling systems.
