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New Cumberland: 717-774-2222 • Mifflintown: 717-436-9044

CSE-Mills: Formerly Richard S. Mills, Inc. - HVAC Mifflintown PA

HVAC Services - Heating & Cooling - Mifflintown, PA
Plumbing Installation, Maintenance & Repair Services - Mifflintown, PA
CSE-Mills Refrigeration Installation, Maintenance & Repairs - Mifflintown, PA

CSE-Mills – Mifflintown, PA
(Formerly Richard S. Mills, Inc.)

CSE-Mills (formerly Richard S. Mills, Inc.) has been providing HVAC installation, maintenance and repair services to homes and businesses throughout the Mifflintown, PA area for more than 20 years. During this time, the company has built reputation for quality, reliability, and excellent service. We’re proud to call them family! Plus, you’ll still find the same great technicians who you’ve trusted for years, available and ready to handle your needs.

CSE-Mills 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 equipment.

HVAC Services - Heating & Cooling - Mifflintown, PA

Heating Services


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!

• Oil, Gas & Propane Furnace Sales
• Heat Pump Sales
• Installations
• Check-Ups
• Tune-Ups (Featuring Digital Combustion Analysis)
• Inspections
HVAC Services - Heating & Cooling - Mifflintown, PA

Air Conditioning Services


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 repairs and emergency service!

• AC Installations
• Check-Ups
• Tune-Ups
• Inspections
Carrier Heating & Cooling Products & Service
Geothermal Heat Pumps

Geothermal Heat Pumps


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.

• Geo thermal-ultra high efficiencies.
• Geothermal Installation
• Geothermal System Service
• Maintenance Agreements
• Manufacturer Brand Repairs
CSE-Mills Refrigeration Installation, Maintenance & Repairs - Mifflintown, PA

Refrigeration Services


Protect your food products (and your bottom line) from going to waste. You can count on CSE-Mills to keep your refrigeration equipment running efficiently and reliably.

• Walk-In Refrigerators & Freezers
• Reach-In Coolers
• Ice Machines (Cleaning & Sanitation)
Plumbing Installation, Maintenance & Repair Services - Mifflintown, PA

Plumbing Services


Our licensed plumbers are ready to help you with all your plumbing needs. Highly skilled and professional, CSE-Mills plumbers are available to:

• Respond to Plumbing Emergencies
• Maintain Existing Systems
• Water Heater Sales
• Installation of New Plumbing Systems
• Provide Certified Backflow Preventer Testing

Contact CSE-Mills Today



1717 William Penn Highway, Mifflintown, PA 17059


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