A-1 Refrigerationstarstarstarstarhalf star4.5 / 5

19 Total Reviews A-1 Refrigeration

A1 Mechanical Contractors is Kalamazoo, MI's local heating system specialists! Our team of highly trained heating experts is ready to help you get comfortable again in your home this winter.

We provide service, repair, replacement and installation of furnaces, boilers, heat pumps, and ductless mini-splits.

The technicians and installers at A1 Mechanical Contractors are ready to get your existing heating system running again or replace it with a high-efficiency furnace, boiler, air-source heat pump, and ductless split system.

  • Furnace Services
  • Boiler Services
  • Heat Pump Services
  • Ductless Mini-Split Services

Heating Systems We Service


Energi Air Systems Furnaces

  • Furnace Pre-Season & Preventative-Maintenance
  • Furnace Repair
  • Furnace Replacement
  • Furnace Installation


Lochinvar Boilers

  • Boiler & Radiant Pre-Season & Preventative-Maintenance
  • Boiler & Radiant Repair
  • Boiler & Radiant Replacement
  • Boiler & Radiant Installation

Heat Pumps

Energi Air Systems Heat Pump

  • Heat Pump Pre-Season & Preventative-Maintenance
  • Heat Pump Repair
  • Heat Pump Replacement
  • Heat Pump Installation

Ductless Mini-Splits

Mitsubishi Ductless Mini-Splits

  • Ductless Mini-Split Pre-Season & Preventative-Maintenance
  • Ductless Mini-Split Repair
  • Ductless Mini-Split Replacement
  • Ductless Mini-Split Installation