Who We Are

Certified Licensed HVAC & Plumbing Services

Summers & Zim’s has been serving Chester County and Lancaster County for Over 85 Years. We are your Good Natured HVAC Technicians to help with your plumbing, heating, air conditioning and home services needs.

Our History

Old Summers & Zim's Signs

Our modest beginnings date back to 1930, when Summers Brothers Plumbing and Heating opened its doors. In 1973, Summers Brothers merged with Zim’s Sales and Service, forming Summers & Zim’s. Since then, we go to great lengths to put your safety and comfort first.

A Special Story from Summers & Zim’s President Joe Zimmerman

Listen to Joe Zimmerman tell the story of how he was faced with a disaster, and how the generosity of the south-central PA community transformed the way he serves the community through business.


Certified HVAC Technicians and Certified Plumbing Repairmen

At Summers & Zim’s, our history in this part of Pennsylvania dates back to 1930, when Summers Brothers Plumbing and Heating first opened for business. In 1973, Summers Brothers merged with Zim’s Sales and Service, and today Summers & Zim’s is proud to be the certified, licensed plumber in Quarryville, PA, as well as Downington, Gap, Strasburg, Exton and the surrounding communities. We put our customers first, and we deliver outstanding services in your home — plumbing as well as HVAC maintenance and repair. We understand that plumbing and HVAC issues in your home are often urgent issues that need a fast response. That’s why we respond quickly when you call, delivering a team of friendly, knowledgeable and experienced service professionals to work in your home. When you need HVAC maintenance or a certified, licensed plumber in Downington, PA, or the surrounding areas, call on the team at Summers & Zim’s.

Comprehensive Plumbing and Heating Services for Your Home

No matter how well you take care of your home, situations come up. The water starts to leak or the air conditioning goes out or the heater stops blowing hot air. That’s when you call Summers & Zim’s. We serve as a certified licensed plumber in New Holland, PA, as well as surrounding communities like Gap, Strasburg, Quarryville, Downington and Exton. We also provide heating and cooling technicians who can deliver preventative maintenance as well as emergency repairs. An emergency is no time to start searching for a certified, licensed plumber in Gap, PA, which is why we’re here as the plumber and Good Natured HVAC service providers you can trust now and for as long as you call South Central and Southeast PA home. We’re proud of the many long-term relationships we’ve built since we first started serving as a certified, licensed plumber in Strasburg, PA, as well as nearby cities and towns. And we’d value the opportunity to develop a long-term relationship as your home service provider of choice.

Your Source for Good-Natured Service

We have a unique approach to serving as the certified licensed plumber in Kennett Square, PA, as well as other communities throughout the area. We are the good-natured guys — the plumbers and Good Natured HVAC technicians who are deeply knowledgeable and thoroughly experienced, but who also treat your home with a friendliness you don’t often find in this industry. We believe in doing a great job and keeping or returning your home to full working order. But that doesn’t mean much if there’s no sense of service excellence. When you call on Summers & Zim’s for service at your home, know that you’ll get certified Good Natured HVAC technicians and certified plumbing repairmen — professionals who can get the job done. But know also that you’ll get passionate and helpful service professionals who want to gain an understanding of your needs and then go above and beyond in meeting them. Contact us today for certified, licensed plumbers in Exton, PA and the surrounding communities — as well as service excellence you won’t find anywhere else.


  • Air Conditioning Contractor of America (ACCA)

  • Better Business Bureau (BBB)

  • Lancaster County Chamber of Commerce

  • Chester County Chamber of Commerce

  • Western Chester County Chamber of Commerce

  • Philadelphia Suburban Gas Company

  • The Electrical Association


  • Master Plumbing License

    We have more master plumbers than any other service provider in Chester County. Master HVAC License.

  • North American Technician Excellence, Inc. (NATE)

    Summers & Zim’s is part of the NATE QUALITY CIRCLE, over 75% of our technicians are NATE-Certified.

  • EPA (Environmental Protection Agency)

    100% of our HVAC technicians are EPA certified.

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