Dunn Heating & Cooling: Your Trusted HVAC Experts in Saint Louis, MO
When your heating or cooling system needs attention in the St. Louis area, Dunn Heating & Cooling provides the reliable service homeowners and businesses count on. They handle everything from urgent repairs to complete system installations, backed by a team of licensed professionals. Available around the clock, their emergency service means help is just a phone call away, day or night. The company focuses primarily on residential HVAC needs, understanding the specific comfort requirements of local homes.
Business Overview
Dunn Heating & Cooling operates with a clear mission: put the customer first. They have built a team of skilled technicians who are not only experts in HVAC systems but also in clear communication and respectful service. Whether it's a historic home in Kirkwood needing a careful retrofit or a new build in Dardenne Prairie requiring an efficient installation, their crew is equipped for the job. Their 24/7 availability, as shown by their hours, provides real peace of mind during a Saint Louis heatwave or a sudden winter cold snap.
Key Services for Saint Louis Homes
The core services from Dunn Heating & Cooling address the most common needs for local property owners. They specialize in two major areas:
- HVAC Installation & Replacement: They help select and install the right heating and cooling systems for Missouri's variable climate, from humid summers to chilly winters.
- HVAC System Repair: Their technicians diagnose and fix issues quickly, minimizing discomfort and preventing small problems from becoming major expenses.
Their broader specialties, including energy audits and indoor air quality solutions, show a deep commitment to whole-home comfort and efficiency.
Areas Served with Local Knowledge
Dunn Heating & Cooling serves a wide area across Greater St. Louis. They work in Saint Louis MO, Saint Peters, Oakville, Kirkwood, Webster Groves, Affton, Arnold, Manchester, and dozens more communities from Fenton to Frontenac. This extensive service area means they have practical experience with the diverse housing styles and building codes found throughout the region. They know what works in a Clayton condo, a Valley Park ranch, or a large home in Ladue.
Company History & Growth
The company's story is built on a simple principle: exceed customer expectations. This focus has driven their growth from a local operation to an award-winning service provider recognized across the metro area. Their history is reflected in a long list of satisfied customers and industry accolades, proving that their customer-first approach delivers consistent results year after year.
Leadership & Local Commitment
For the owner and team at Dunn Heating & Cooling, HVAC is more than a job—it's in their DNA. This passion translates into a genuine customer service orientation combined with deep technical skill. The leadership ensures the company maintains the highest level of licensing and certifications required in Missouri. They are invested in the community, not just as service providers but as local residents who understand the importance of a comfortable home.
Specialties & Highlights
Several key points make Dunn Heating & Cooling stand out in the Saint Louis HVAC market:
- Award-Winning Service: Recognized by Ameren Missouri for energy efficiency, Angie's List with a Super Service Award, and Trane for excellence.
- Whole-Home Comfort Focus: Services extend beyond HVAC to include home energy audits, insulation, air sealing, duct cleaning, and advanced indoor air quality products.
- Unrivaled Customer Commitment: The company operates on the belief that no customer should go unhappy, backing it with proven service skills.
- Superior Credentials: They hold the top-level licenses and certifications needed to work on any system in the Greater St. Louis area.
Why Locals Choose Dunn Heating & Cooling
Residents and business owners in Saint Louis, MO choose Dunn Heating & Cooling for a straightforward reason: proven reliability. Their long-standing presence in the community, combined with a tangible history of excellent work and customer satisfaction, builds trust. They offer the technical expertise to handle complex HVAC challenges and the personal commitment to make every service call a positive experience. When you need an HVAC partner who treats your home like their own, Dunn Heating & Cooling in Saint Louis, MO delivers the quality and care you expect.
Contact Information
Dunn Heating & Cooling
: 638 Lemay Ferry Rd, Saint Louis, MO 63125
Business Services
- HVAC installation or replacement
- HVAC system repair
Business Location & Hours
| Mon: | 6:00 AM - 6:00 AM (Next day) |
| Tue: | 6:00 AM - 6:00 AM (Next day) |
| Wed: | 6:00 AM - 6:00 AM (Next day) |
| Thu: | 6:00 AM - 6:00 AM (Next day) |
| Fri: | 6:00 AM - 6:00 AM (Next day) |
| Sat: | 6:00 AM - 6:00 AM (Next day) |
| Sun: | 6:00 AM - 6:00 AM (Next day) |







