
HVAC, Plumbing & Electrical Services in King of Prussia, PA
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NATE certified, award-winning, expert technicians providing you with unparalleled service.

“We used Haller for several projects including the installation of a mini split. They are super professional, helpful, and friendly. They do great work and take the time to explain everything and answer any questions you may have. I will continue to use them!!”
— Madeline, Lancaster

Reliable Home Services Since 1981
Now Offering Same Day Appointments Afterhours and On Weekends. Just Book It!
You depend on your HVAC, plumbing, and electrical systems to keep your home functioning and comfortable. Issues with these systems are a major inconvenience and, sometimes, a health risk. If your air conditioner breaks down, a pipe bursts, or outlets spark, turn to Haller Enterprises for comprehensive service. For over 40 years, we’ve been a leading heating, cooling, plumbing, and electrical services provider in Pennsylvania, promising superior service backed by a 100% satisfaction guarantee.
Has your HVAC system failed? Is it time to replace your water heater? Haller Enterprises offers special financing options to make scheduling the services you need stress-free. Request a free replacement estimate for your HVAC system from our team, or apply for financing to see if you’re eligible for a plan with zero interest and zero payments for up to 18 months.
Since 1981, Haller Enterprises has strived to deliver exceptional home services to Pennsylvania residents. Our team can meet your needs, from air conditioning and heating to plumbing and electrical services. If it’s time to upgrade your electrical panel, repair your HVAC system, update your plumbing system, or anything in between, Haller Enterprises is your partner in top-rated home services.

“I can’t say enough about how pleased we are with Haller. The guys were personable and clear with instructions for our newly installed system. Special thanks to Adam, Austin, and Jared. Best tip for those looking for HVAC service or new installation? DON’T GO ANYWHERE ELSE!”
— Vickie, Lancaster

Quality You Can Trust
Forty years ago, we began providing best-in-class HVAC service with unparalleled customer service. Today, our NATE-certified technicians are the best in the business. These licensed and insured experts perform timely installations with care and respect. You receive extraordinary mechanical and electrical services, world-class solutions, and unquestionable value—with a 100% satisfaction guarantee. Schedule a visit with our experts for unmatched customer service and a flawless climate solution that meets your family’s comfort needs.
We strive to earn the trust of every homeowner, provide the best solution and value, and offer the best in mechanical and electrical services—without compromise.
Serving Central & Eastern PA

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