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Use the Book Now button above to schedule service. For all other inquiries, please call 610-593-5129.

Summers & Zim’s

403 Valley Ave., PO Box 220
Atglen, PA 19310

We proudly serve southeastern Pennsylvania, including Lancaster County, Chester County, and parts of Delaware County and Montgomery County. View our service area to see if that includes your home.

★ ★ ★ ★ ★

My service today was thorough and very professional. The S & Z technicians are always excellent. I will stick with this customer service oriented company for all my water, heating and cooling needs. A++!

Jean Hughes

04/22/2026

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Design Guarantee

If our custom-designed HVAC or plumbing system doesn't meet your home's needs, we'll adjust or replace it at no cost.

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No Lemons Guarantee

If a boiler section, water heater tank or well pump fails within the first 10 years, we’ll replace it for free.

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$500 No Frustration Guarantee

If a new installation disrupts heating, cooling, or hot water for more than a day within the first two years, we'll pay you $500.

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Home Protection Guarantee

We'll repair or replace any carpets, walls, floors, or furniture damaged by our team during a service visit.

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100% Money Back Guarantee

If your installed system doesn't meet expectations, we'll remove it and refund your investment in full.