Dunn Plumbing, Heating & Air Conditioning LLC
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About Dunn Plumbing, Heating & Air Conditioning LLC
Dunn Plumbing, Heating & Air Conditioning LLC has served St. Louis homeowners since 2003, operating from 6068 Baumgartner Industrial Drive in the Baumgartner Industrial area. The company holds an HVAC ML15744 license from St. Louis County and maintains an impressive 4.8-star average across 53 customer reviews. Their service area encompasses the entire St. Louis metro region, including surrounding communities in Missouri. The business provides comprehensive heating, cooling, and plumbing solutions for residential properties, with 24/7 availability for emergency situations and same-day appointments for most standard services.
What distinguishes Dunn from competing contractors is their "Get it Dunn Right or Your Money Back" service guarantee, a rarity in the St. Louis market. They participate in the Ameren Missouri Heating & Cooling Program and Union Energy Rebate Programs, passing savings directly to customers on eligible equipment installations. The company provides free estimates on all new equipment and offers complimentary second opinions on condemned equipment, helping homeowners avoid unnecessary replacements. Their financing options make major installations accessible, while their commitment to servicing all major brands ensures technician expertise regardless of equipment age or manufacturer.
Customer reviews consistently highlight specific technicians who deliver exceptional service. Jason has earned multiple mentions for his thorough explanations and diagnostic skill, including a gas line leak repair that a reviewer called "a disaster turned positive." Shannon received praise for addressing multiple plumbing issues during a single visit and taking time to explain problems clearly. One reviewer noted Jason arrived at their refinished basement to fix an outdoor faucet through a ceiling, an unconventional access point that required creative problem-solving. The company's responsive, same-day emergency availability has converted callers into long-term customers who now trust Dunn for both plumbing and HVAC needs.
What Customers Say
Forty-seven of 53 reviews award 5 stars, with customers frequently praising technicians Jason and Shannon by name. Reviewers specifically mention same-day response times, thorough explanations of repair procedures, and the company's willingness to address multiple issues in a single visit. One review notes pricing exceeded initial quotes due to labor costs and outdated equipment complications, though the technician's honesty and diagnostic skill were still praised.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
AC Repair & Installation
Complete air conditioning repair, new system installation, and seasonal maintenance tune-ups for all major brands.
Furnace & Heating Services
Furnace repair, replacement installation, and preventive maintenance to keep your heating system efficient through winter.
Drain Cleaning & Leak Repair
Professional drain cleaning services and precise leak detection and repair for pipes, fixtures, and water lines.
Water Heater Services
Installation and repair of both traditional tank and tankless water heaters, plus water filter and softener systems.
Indoor Air Quality Solutions
Air cleaner installation and humidifier services to improve breathing air and reduce allergens in your home.