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H. A. THOMPSON & SONS
  • Home
    • The H.A. Thompson Story
    • Privacy Policy
  • Online Bill Pay
  • Schedule Service
  • Residential
    • Free Estimates
    • Financing
    • Forced Air Heating and Cooling
    • Mitsubishi Mini-Split Systems
    • Hot Water Heating
    • Controls & IAQ
    • Propane & Natural Gas Piping
    • Residential Plumbing
    • Residential Contract Maintenance
  • Commercial
    • Commercial Contract Maintenance
    • Repairs, Retrofits and Upgrades
    • Energy Conservation
    • Commercial Mechanical Construction Services >
      • Design Build
      • New Construction
      • Prefab Services
      • Repair/Remodel
  • Reline
    • Drain Pipe Rehab
  • Careers
  • Contact Us
    • Bismarck Office
    • Fargo Office

HVAC Equipment Repairs

H.A. Thompson & Sons has always been a service company and as such, our goal is to keep your existing equipment operating as long as it is safe and feasible.  We are able to repair and maintain nearly any manufacturers equipment you may have in your mechanical room, roof, ceiling or basement.  Boilers? Yes.  Rooftop units...absolutely.  Heat pumps in the ceiling?  Sure! Wherever your heating and cooling systems are located, we work on it.

Equipment Retrofits & Upgrade

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When the time comes to replace aging equipment, our skilled HVAC technicans and LINC account managers will make proper recommendations on equipment upgrades and replacements.  With access to a wide variety of HVAC equipment from manufactures such as Mitsubishi, TRANE, AAON, McQuay, Carrier, Copeland, B.A.C. and many others.

We can also assist you in adding additional functionality and cost savings to your HVAC system with control upgrades.

Corporate Headquarters:
911 South 9th Street
Bismarck, ND  58504
Phone: (701) 223-3393
Fax: (701) 223-1517
Email: [email protected]
Fargo Office
2601 12th St N, Suite 400
Fargo, ND  58102

© 2025 - H.A. Thompson & Sons
H.A. Thompson & Sons Privacy Policy
  • Home
    • The H.A. Thompson Story
    • Privacy Policy
  • Online Bill Pay
  • Schedule Service
  • Residential
    • Free Estimates
    • Financing
    • Forced Air Heating and Cooling
    • Mitsubishi Mini-Split Systems
    • Hot Water Heating
    • Controls & IAQ
    • Propane & Natural Gas Piping
    • Residential Plumbing
    • Residential Contract Maintenance
  • Commercial
    • Commercial Contract Maintenance
    • Repairs, Retrofits and Upgrades
    • Energy Conservation
    • Commercial Mechanical Construction Services >
      • Design Build
      • New Construction
      • Prefab Services
      • Repair/Remodel
  • Reline
    • Drain Pipe Rehab
  • Careers
  • Contact Us
    • Bismarck Office
    • Fargo Office