Residential HVAC
SRGI offers the most innovative and highly efficient heating and air conditioning products, accessories, and controls.
Airex Wall Sealing Kits and Line Set Protection
Airex provides a complete system for properly sealing wall penetrations and protecting refrigerant line sets from damagin UV radiation. Benefits of installing an Airex system with a mini-split or unitary AC system are:
- Neat and clean installation
- Meets building energy codes
- Protects from lineset insulation degradation
- Most effective solution to prevent rodent or insect infiltration
- Made in the USA
Fujitsu Inverter-Driven Heat Pumps and Unitary Cooling and Heating Systems
Through advanced technology, Inverter air conditioners are more economical to operate and quieter to run than conventional units. They can handle greater extremes in temperature, are smoother and more stable in operation, and reach the desired temperature more quickly than conventional air conditioners. With ratings as high as 31-SEER (Seasonal Energy Efficiency Ratio), Fujitsu mini split systems are among the highest rated efficiency equipment available anywhere!
Pro1 Thermostats and Controls
Pro1 Thermostats and controls offer a full line of thermostats including wireless, WiFi, PTAC controls, and more. Their free private label program and commitment to stay out of big box retail make Pro1 the #1 choice for plumbing, heating and HVAC contractors.
Electro Industries Make-Up Air Units & Electric Duct Heaters

SRGI has the Experience
With decades of experience in boiler systems, hydronics, and HVAC, our inside or field design staff can help with any application you are considering. Let us help you decipher your choices and make the ideal product choice for your application.