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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.

★ ★ ★ ★ ★

Always on time, always professional and friendly and gets the job done. Have used them for years and years!!!!! Andrew was great

Lisa Mackell

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 (10yr), hot water heater tank (6yr), or well pump (5yr) fails prematurely, 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.