- Page 39 of 42 - Haller Enterprises

If my system is new and/or running well, why do I need preventative maintenance?

What equipment in my home should receive regular preventative maintenance?

How often should I be getting maintenance on my system(s)?

When should maintenance be performed?

Should I contact Haller to schedule my maintenance appointment?

Contact Haller Enterprises in Central & Eastern Pennsylvania

July 16, 2025

Get In Touch With Haller’s Customer Service Department Please call (717) 204-8120 or fill out the quick form and we’ll be in touch with you Corporate Office PO Box 375Lititz,…

Is my maintenance appointment guaranteed?

When are you available to perform my preventative maintenance?

What is EZPay?

When do I get billed each month?

What is Auto-Renewal?

May 11, 2021

How will I know when it is time to renew my One Call Club membership?

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