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What defines O.L. Jacobs? It all depends on what you're looking for.

If you want a local, family-owned company with decades of experience -- We are a 3rd generation family-built and owned business based in Central Pennsylvania that has been proudly providing customers with commercial industrial mechanical services since 1945.

If you want a one-stop shop for all your residential and commercial HVAC needs -- Our partnership with Daflure Heating, Cooling & Solar provides customers with a full menu of commercial, industrial and residential HVAC capabilities.

If you want a company with values you can trust -- We are deeply committed to providing the highest level of service, advocating innovative solutions to technical challenges and providing ongoing professional development for our employees.

The best part is you don't have to choose -- when you work with O.L. Jacobs, you get it all!