About Horizon Services

About Horizon Services - The Premier Plumbing, Heating, Air Conditioning, Drain Cleaning and Sewer Company in DE, PA, NJ, and MD.On-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED!

Horizon Services is the Delaware Valley’s largest and most referred home services company, ready to meet all of your service needs for heating, air conditioning, plumbing, drain cleaning and sewer and water line replacement and repair. We are also the region’s premier seller and installer of energy-efficient heating and cooling systems.

Thousands of satisfied homeowners throughout Delaware, Southeastern Pennsylvania, South New Jersey, and Northeastern Maryland have relied on Horizon Services for over 20 years to service and install the right plumbing, heating and air conditioning systems and equipment for their family, to be there when we promise and to guarantee everything we do in writing.

Horizon Services

From routine maintenance to emergency repairs to quality installation of home comfort systems, Horizon Services works hard all day, every day to ensure that your needs are met and that you and your family can enjoy your home comfortably and worry-free.


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Employee Infographic Summary

  • 676 Dedicated Horizon Services Employees: DE-304, PA-211, NJ-121, MD-40
  • 143 HVAC Installers: DE-49, PA-54, NJ-32, MD-8
  • 120 HVAC Service Technicians: DE-46, PA-45, NJ-23, MD-6
  • 44 HVAC Sales Technicians: DE-15, PA-15, NJ-9, MD-5
  • 91 Plumbing and Drain Cleaning Technicians: DE-30, PA-36, NJ-22, MD-3
  • 17 Dig Technicians: DE-10, PA-7
  • 370 service and support vehicles covering
    Delaware (Wilmington, New Castle County and Kent County)
    Southeastern Pennsylvania (Delaware County, Chester County, The Main Line, Montgomery County, and Bucks County)
    Southern New Jersey (Gloucester County, Camden County, Burlington County, and Mercer County)
    Northeastern Maryland (Baltimore County, Carroll County, Harford County, Cecil County, Howard County)
  • 24-hour, 7-days-a-week call center and dispatch system


Extended Service Hours

Our team of Customer Service Representatives are available to speak with you to schedule service or answer your questions during the following hours:

  • Monday – Friday: 6:00 am to 11:00 pm
  • Saturday – Sunday: 8:00 am to 10:00 pm
  • After Hours: All calls will be taken by an On-Call Manager


Additionally, we will expand our weekend hours of operation anytime a weekend weather forecast calls for extreme heat or cold.

Home appointments — routine or emergency — can be made for any hour of the day, any day of the week. When you need us to be there, WE WILL BE THERE.

Office Locations

Horizon Services, Inc.
320 Century Blvd.
Wilmington, DE 19808

Fax: (302) 762-9036

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Horizon Services, Inc.
900 Adams Ave.
Audubon, PA 19403

Fax: (610) 728-6325

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Horizon Services, Inc.
17 Roland Ave.
Mount Laurel, NJ 08054

Fax: (856) 234-4513

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Horizon Services, Inc.
2607 N. Rolling Road, STE. 201
Windsor Mill, MD 21244

Fax: (410) 944-1777

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We’re so confident you’ll be pleased with our fast, friendly and professional service, we know you’ll become a customer for life!

More About Horizon Services…

Horizon Difference

Horizon Services has set a new standard for plumbing, heating and air conditioning service excellence. We focus on things that are important to you: Quality, Value, and Accountability. Bottom line: Horizon Services delivers an experience that no other plumbing, heating and air conditioning company in DE, PA, NJ, or MD can come close to matching.

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Locations and Hours

Horizon Services has offices in Wilmington, Delaware, Audubon, Pennsylvania, and Mount Laurel, New Jersey with extended services hours seven days a week.

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Pricing and Payment

Nobody wants to pay too much for heating, air conditioning or plumbing service. Horizon Services offers competitive, up-front, flat-rate pricing and a variety of payment plans to meet your budget needs.

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No plumbing, heating or air conditioning company in Delaware, Southeastern Pennsylvania, South New Jersey, and Northeastern Maryland gives its technicians more ongoing training and education than Horizon Services.

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Horizon has thousands of satisfied customers throughout Delaware, Southeastern Pennsylvania, South New Jersey, and Northeastern Maryland. Read what our customers have to say about our heating, plumbing and air conditioning services.

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Awards & Honors

Year after year, Horizon Services has been recognized by the industry, by the media and by our customers for service excellence and professionalism.

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Community Involvement

Horizon Services is an active participant and contributor to charities and civic organizations in the communities in which we work and live.

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Service Partner Plan

Sign up for Horizon’s Service Partner Plan and enjoy priority service, more convenience, more discounts…and less worry.

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Thousands of satisfied homeowners throughout DE, Southeastern PA, South NJ, and Northeastern MD have relied on Horizon Services for over 20 years for the installation of their heating and air conditioning systems.

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Horizon Services is a great place to work! Learn about current openings, benefits or submit your resume.

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Horizon Helps!

Horizon Helps! is an organization made up of Horizon Services employees who give their time and energy to dozens of worthwhile causes, charities, local organizations and community events throughout the Delaware, Pennsylvania and Maryland region. Learn more about our activities, upcoming events and how Horizon Helps! can lending a helping hand to your organization.

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Horizon Services has been proudly meeting the plumbing, heating, and air conditioning needs of customers since 1989. Discover more about Horizon Services by viewing our historic timeline.

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Corporate Wellness Program

At Horizon Services, we believe that overall wellness is a lifelong journey toward optimal health. This means treating the whole person, including their physical, mental, emotional, and spiritual well-being.

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Horizon News

Get up to date with the latest Horizon Services news releases and company announcements.

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Site Map

Lost? Having difficulty navigating our website? Here you'll find a bird's eye view of the entire Horizon Services website.

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Weather Conditions

Horizon Supports Local Sports Teams

Horizon Services is a Proud Partner of the Wilmington Blue Rocks, Philadelphia Union and the Camden Riversharks.

  • Better Business Bureau
  • Delware Best in the Businesss Award 2009
  • North American Technician Excellence