Commercial & Industrial HVAC, Refrigeration & Plumbing Solutions in Mifflintown, PA
Formerly Richard S. Mills, Inc., CSE’s Mifflintown office has been providing HVAC installation, maintenance and repair services to homes and businesses throughout the Mifflintown, PA area for more than 25 years. We are proud to carry on the Mills tradition of quality, reliability, and excellent service.
CSE provides reliable heating and cooling maintenance and repair services, equipment installations, geothermal heat pumps for both residential and commercial clients, and refrigeration services. We also offer service agreements to help you save money, maintain energy efficiency, and maximize the life of your HVAC equipment.
Commercial & Industrial Services
• Cooling
• Geothermal
• Refrigeration

Heating
Whether you need a new heating unit, or want to make sure your old one can still stand up to the cold, count on fast and efficient service to keep you comfortable. Services are available for all of your residential and commercial needs, including…
• Heat Pump Sales
• Installations
• Check-Ups & Tune-Ups (Featuring Digital Combustion Analysis)
• Inspections

Cooling
When the temperature starts rising, you want to be certain that your air conditioning system is up to the task. Before the heat gets to be too much, get an inspection for your AC unit and ask about our new preventative maintenance program. Whenever your AC unit needs work, you can count on a prompt response to return your home or business to comfortable temperatures. Call us anytime for…
• AC Installations
• Check-Ups
• Tune-Ups
• Inspections
• Emergency Service

Geothermal
You may have heard of the growing popularity of ultra high-efficiency geothermal heating and cooling systems. This smart upgrade is better for the environment, and it can save you money in the long-term. You can trust our experts to install and service your geothermal system properly to ensure optimal efficiency and life span. Our geothermal services include…
• Geothermal System Service
• Maintenance Agreements
• Manufacturer Brand Repairs

Plumbing
Our licensed plumbers are ready to help you with all your plumbing needs. Highly skilled and professional, CSE plumbers are available for…
• Maintenance of Existing Systems
• Installation of New Plumbing Systems
• Water Heater Sales
• Certified Backflow Preventer Testing

Refrigeration
Protect your food products (and your bottom line) from going to waste. You can count on CSE to keep your refrigeration equipment running efficiently and reliably. Call us for…
• Reach-In Coolers
• Ice Machines (Cleaning & Sanitation)
Contact Us
1717 William Penn Highway
Mifflintown, PA 17059
Monday – Friday
7:30am – 4:30pm