Welcome!

Al's Septic & Excavation has been offering affordable  septic system installations and septic design services in the greater Derry,  NH area for over 25 years. We have a proven record of excellence and reliability as a septic and excavation contractor. We are a fully insured company licensed by the state of New Hampshire Department of Environmental Service.

We service both commercial and residential properties offering you the best in quality and service at the most competitive rates in the area. Whether you are buying or selling a home, a property investor making repairs, building a new house or a Realtor trying to satisfy your clients needs we are here to help.

We are a family owned and operated business available 7 days a week.

Serving Greater Derry For Over 25 Years

Services Offered

• Septic Systems

• Septic Designs

• Septic Installation

• Septic Inspections

• Baffle / Pipe Repairs

• Tree / Stump Removal

• Drainage

• Water / Sewer Lines Grading

• House Lots Site Work

• Yard Expansions

• New Lawns

• Demolition

• Retention Ponds

• Swales

• Pool Prep