Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in St. Louis
AL-DON has been a trusted name in HVAC services for nearly 66 years, serving St. Louis and surrounding areas. Founded in 1955, we pioneered maintenance agreements and introduced cutting-edge technologies like the Infltrometer for air system diagnostics. Our team of certified technicians specializes in residential and commercial heating, cooling, and indoor air quality solutions. We pride ourselves on innovation, having launched the HEPA-AIRE purification system and Air Scrubber Plus technology. With a legacy of excellence, we transitioned to AL-DON Indoor Air Quality Specialists LLC in 2009, focusing on holistic air quality solutions.Our commitment to customer satisfaction is reflected in our 24/7 emergency services and personalized approach. We partner with leading brands like Daikin, Amana, and Armstrong Air to deliver reliable equipment. Generations of customers have trusted us for prompt, transparent service and expert guidance. Our family-owned business continues to grow under Jeff Millers leadership, prioritizing education and health-focused solutions. From furnace repairs to smart thermostat installations, we ensure comfort and safety for every client.
Services
Residential Air Conditioning
Commercial Cooling
Indoor Air Quality
Furnace Repair
HVAC Maintenance
Details
- Year established: 1955
Highlights and features
- 66 years of local HVAC expertise and innovation
- Certified technicians trained on state-of-the-art systems
- 24/7 emergency service for urgent heating/cooling needs
- Financing options available for system upgrades
- Pioneers in indoor air quality diagnostics and purification
Associations and certifications
- ISO 9001
- ISO 14001
What people say
Polite and professional
Excellent service
Prompt emergency response
Knowledgeable technicians
Family-owned reliability
Services
Residential Air Conditioning
Our residential AC solutions ensure optimal comfort through expert installation, maintenance, and repair. We handle ductless systems, heat pumps, and central air units. Customers benefit from energy-efficient upgrades and prompt emergency service.
Commercial HVAC
We provide tailored HVAC solutions for commercial properties, including large-scale system installations and preventive maintenance. Our technicians handle complex commercial equipment with minimal business disruption. Clients receive customized efficiency plans for long-term cost savings.
Indoor Air Quality
Our air quality specialists install Air Scrubber Plus systems and HEPA-AIRE purifiers to eliminate 99% of contaminants. Services include testing, filtration upgrades, and humidity control for healthier living environments.
Furnace Repair
We offer 24/7 furnace repair for all brands, with same-day diagnostics and transparent pricing. Our technicians perform safety checks and efficiency tune-ups to prevent future breakdowns.
Maintenance Plans
Our maintenance agreements include seasonal inspections and priority service scheduling. Plans extend equipment lifespan and improve energy efficiency through regular professional servicing.
People
Jeff Miller
Owner
Jeff Miller leads AL-DON as Indoor Air Quality Specialists, continuing his family's 66-year legacy. He focuses on innovative air purification solutions and customer education.
Toi Miller
Co-Owner
Toi Miller partners with Jeff to prioritize customer health and satisfaction. She manages operations and ensures personalized service delivery across all client interactions.
Questions
What HVAC services does AL-DON offer?
We provide residential/commercial AC, heating, furnace repairs, indoor air quality solutions, and maintenance plans.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service for urgent heating and cooling issues.
Are financing options available?
Yes, we offer financing for HVAC system installations and major repairs.
What areas do you serve?
We serve St. Louis, Creve Coeur, Town and Country, and surrounding Missouri areas.
How can I schedule service?
Call (314) 567-5585 or use our online form to schedule immediate assistance.
