Septic Systems

A malfunctioning septic tank can present a health issue

Water Mains

Water line installation, replacement and repair


Sub-surface water and leaking foundations need to be fixed


Talk to an expert to discuss your project with a profionaless

Septic System Installation Experts in Your Area

Free Quotes on all excavation projects or services

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Recent Projects

Here are a few excavation projects we are working on for our customers. Let us dig into your next project or repair around the yard.


Drainage System


septic system installation

Septic System


Septic System Installation and Repair

Look no further. You have come to the right place. Sioholm Excavation is a locally owned and operated septic system installation and repair company. We are located in Wallingford CT and service the State of Connecticut.

Our excavation company has been in business for over 30 years and we have a great reputation in the community. We also give free estimates. Give us a call to set up an appointment so we can discuss your septic tank and septic system options.