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Quality, Friendly Service in Central & Eastern PA

Our Certifications in PA

With our NATE-certified technicians, know that the services you’re receiving are the best in the business. NATE’s certification tests represent real world working knowledge of HVACR systems. North American Technician Excellence (NATE), headquartered in Arlington, VA., was founded in 1997 and is the nation’s largest non-profit certification organization for heating, ventilation, air conditioning, and refrigeration technicians. NATE is the only technicians certification organization governed, owned, operated, developed, and supported by the HVACR industry.

Haller is proud to be a part of the Pearl Certification Network (PCN). Pearl certifies an elite network of contractors, builders, and real estate professionals that empowers homeowners to not only increase the efficiency, health and comfort of their home but also maximizes the value of their high-performing home at the time of refinance or sale.

As much as we recognize the quality of work stemming from years of experience, we also know that you have to start somewhere. That’s why we invest in education initiatives to support aspiring technicians early on.

Education & Training in Central & Eastern PA

  • Certified Apprenticeship Program through Associated Builders & Contractors
  • Career Day Site for Thaddeus Stevens College of Technology
  • Cooperative Education Employer for Lancaster County Career & Technology Center


At Haller, we’re not just in it to win it. We’ve always been committed to providing our customers the best home service in Central and Eastern Pennsylvania. While we don’t anchor our vision around gaining the most awards possible, we’ve worked hard to make a recognizable impact in the communities we serve, from Harrisburg to York. 

2023 Carrier HVAC presidents award

The Carrier Presidents’ Award 2023

The Carrier Presidents’ Award is presented annually to dealers who meet strict criteria for customer satisfaction, business management, and operational expertise. This award is not easy to win – we are thrilled to have received it, and we are grateful for the support of our customers, team, and local communities.

2023 neighborhood fave award by Nextdoor

Nextdoor ‘Neighborhood Faves’ 2023

Nextdoor ‘Neighborhood Faves’ celebrate the most beloved local businesses and professionals, as voted by Nextdoor neighbors across the United States.

Susquehanna Style – “Best of Lancaster” 2020 & 2021

Voted as the #3 Electrical Company in 2021, and #3 Heating & Cooling, Plumbing, and Electrical Company in 2020 by the local readers of Susquehanna Style.

Morning Call – Readers’ Choice 2020

Voted as the Best Electrical Contractor in 2020 by local readers.

LNP/LancasterOnline – Readers’ Choice Award 2020 & 2021

In 2021, Haller was voted a favorite in the following categories by local readers:

  • #1 Electrician
  • #2 Plumbing Company
  • #2 Kitchen & Bath Remodeler
  • #3 Heating & Cooling
  • #3 Water Treatment Company

Additionally, readers voted Haller a favorite in 2020 in the following categories:

  • #1 Duct Cleaners
  • #2 Electrician
  • #3 Plumbing Company

Other Awards

  • Excellence in Construction Safety Award – ABC Keystone
  • S.T.E.P. Award (Safety Training & Evaluation Process) – ABC Keystone
  • 2014 ACCA Contractors of the Year