Call Now
Website
Call
Business Details
30 Years
experience
Emergency
services
Trusted HVAC Services in St. Louis Park
Air Quality Services, Inc. has been a trusted provider of heating, ventilation, and air conditioning solutions in the Twin Cities metropolitan area since 1996. Founded by brothers Brad and Bernie Von Ruden, our family-owned business combines over 29 years of industry experience with NATE-certified expertise to deliver comprehensive HVAC services. We specialize in furnace repair and installation, air conditioning maintenance, indoor air quality improvements, and emergency HVAC solutions for residential and commercial clients. Our commitment to technical excellence is demonstrated through rigorous technician certifications, adherence to manufacturer warranties, and personalized service approaches.

With a focus on customer satisfaction, we maintain an A+ rating with the Better Business Bureau and consistently earn top reviews for our transparent pricing, 24/7 emergency availability, and energy-efficient system recommendations. Our team's deep understanding of modern HVAC technology ensures optimal system performance while maintaining cost-effectiveness for homeowners across Hennepin County.
Services
Heating Repair AC Installation Air Quality Testing Furnace Maintenance Emergency HVAC Service Heat Pump Repair Ductless Systems Boiler Services Humidifier Installation Thermostat Upgrades
Details
  • Year established: 1996
Highlights and features
  • NATE-certified technicians with specialized HVAC expertise
  • A+ rating with the Better Business Bureau since 1996
  • 24/7 emergency service with same-day availability
  • Manufacturer-backed warranties on all installations
  • Energy-efficient system recommendations for cost savings
Associations and certifications
  • NATE Certification
  • BBB A+ Rating
What people say
24/7 emergency service NATE-certified technicians Same-day appointments Energy savings Professional staff
Services
Heating Repair
Our NATE-certified technicians provide comprehensive heating system repairs for furnaces, boilers, and heat pumps. With expertise in both older and modern systems, we diagnose and fix issues ranging from ignition failures to heat exchanger problems. Emergency repair services are available 24/7 to restore heating during Minnesota's coldest months, with same-day service prioritized for no-heat situations.
AC Installation
We specialize in proper HVAC system sizing and installation of energy-efficient air conditioning units. Our technicians handle complete system replacements including ductwork modifications and electrical upgrades. We offer ENERGY STAR-rated units with manufacturer warranties and provide detailed system performance explanations to ensure optimal cooling efficiency for Minnesota's summer climate.
Air Quality Testing
Our comprehensive indoor air quality assessments identify contaminants, humidity issues, and ventilation deficiencies. Using specialized equipment, we test for volatile organic compounds (VOCs), particulate matter, and microbial growth. Recommendations include HEPA filtration systems, whole-house humidifiers, and ventilation improvements to address specific air quality concerns in residential and commercial spaces.
Furnace Maintenance
Our annual maintenance program includes 21-point system inspections covering combustion analysis, electrical connections, and airflow optimization. Regular tune-ups improve system efficiency by up to 30%, reduce breakdown risks, and extend equipment lifespan. Priority scheduling is provided for maintenance agreement holders during peak heating seasons.
Emergency HVAC Service
Available 365 days a year, our emergency service responds to critical HVAC failures including complete system outages and refrigerant leaks. Trained technicians carry common replacement parts and use diagnostic tools to resolve issues quickly. Emergency service includes after-hours pricing transparency with no additional fees for weekend or holiday visits.
People
Brad Von Ruden
Co-Owner & Operations Manager
With NATE certification in sheet metal design and installation, Brad leads HVAC system installations and new construction projects. He oversees field operations and ensures compliance with industry standards while maintaining direct customer communication for project transparency.
Bernie Von Ruden
Co-Owner & Service Director
NATE-certified service specialist Bernie manages repair teams and equipment diagnostics. He focuses on maintaining system efficiency through preventive maintenance programs and provides technical training to service technicians to ensure up-to-date HVAC knowledge.
Questions
How often should HVAC systems receive professional maintenance?
Manufacturers recommend bi-annual maintenance for optimal performance. We suggest spring AC check-ups and fall furnace inspections to ensure seasonal readiness with 21-point system evaluations.
What are common signs of indoor air quality issues?
Frequent allergy symptoms, visible mold growth, persistent odors, and excessive dust accumulation indicate potential air quality problems. Our IAQ specialists can identify sources and recommend filtration or ventilation solutions.
Do you service all HVAC brands and models?
Our technicians work on all major brands including Carrier, Bryant, Trane, and Mitsubishi. We maintain technical certifications for both older systems and modern smart HVAC equipment.
What financing options are available for HVAC replacements?
We offer flexible financing through approved partners with terms up to 10 years. Special promotions and manufacturer rebates are frequently available for qualifying system replacements.
How quickly can emergency service be dispatched?
Our 24/7 emergency team responds within 2 hours for critical HVAC failures. Priority is given to no-heat situations during winter months with technicians carrying common replacement parts for immediate repairs.
What sets AQS apart from other HVAC contractors?
We combine family-owned personalized service with NATE-certified expertise. Our commitment includes upfront pricing, detailed system explanations, and manufacturer-backed warranties on all installations.