Keep Your HVAC System Operating at Its Best with Our Guaranteed Professional Maintenance Program
Campbell offers a Guaranteed Professional Maintenance (GPM) program to help keep your HVAC system operating efficiently while delivering annual savings.
Our Guaranteed Professional Maintenance (GPM) program helps you plan for maintenance and keep your building operations running efficiently, while realizing annual savings.
Campbell customers can be confident in our:
- Fixed cost for HVAC maintenance and repairs with no surprises
- Extended equipment life
- Ensured equipment reliability
- Lower overall expenses
- Optimal air quality and comfort conditions
- Reduced system downtime
- Single source responsibility
We are committed to building long term customer service relationships with our clients. With more than 50 years of experience, our ability to deliver results on savings and equipment life through our Guaranteed Professional Maintenance (GPM) program sets us apart from our competitors.

The GPM program provides total responsibility for heating, ventilating and air conditioning (HVAC) systems. It may, in special situations, include other non-environmental mechanical equipment.
GPM Program Includes
- Test and inspect labor and expense
- Preventive maintenance labor and expense
- Repair labor and expense
- Trouble calls (emergency service) labor and expense
- Parts and components and labor for replacement
- All travel and living expenses
- Maintenance of filters, coils, water treatment, or other special equipment if specifically stated in the agreement
Customer Benefits
- Lower owning and operating costs
- Budget control
- Investment protection
- Extended equipment life
- Reliable system operation
- Reduced energy consumption
- Peace of mind