About Us

E.W. Mainhart, LLC is a growing business dedicated to its customers. We focus primarily on plumbing, heating and air conditioning and excavation. In addition, we also have our ductwork metal fabrication shop that houses all the tools and materials needed to supply sites with custom ductwork. In May of 2020 we added a new trommel to screen topsoil.


Our plumbing department focuses on new construction residential and commercial sites, as well as remodels and small projects as requested by clients. This can include replacing sinks and faucets to unclogging toilets and repairing leaks.


Our HVAC department encompasses many of the same jobsites, such as new construction to remodels. Our in house ductwork metal fabrication shop is used to customize ductwork for homes or businesses. Our employees install new systems that are energy efficient from heat pumps to geothermal systems to mini-split AC systems.


Our excavation department works hard to install sand mounds per drawings, dig electrical ditches as needed, finish grade at new constructions, excavate basements, footers, install new driveways, haul screened topsoil and stone to sites as needed, install drainage pipes, and much more.

E.W. Mainhart, LLC strives to maintain a strong excavation fleet to eliminate the need to rent equipment and also to assist with optimizing our time on jobs to be as efficient as possible and get the job done as best as possible. Our fleet consists of a trackhoe, backhoe, skidloaders, highlift, mini excavator, dump trucks, rock hound attachment, tamper, rock breaking attachment, and roller.

EW Mainhart Building - Front
EW Mainhart Building - Rear

Our location:
2815 Ritner Highway Carlisle, PA 17015