Diamond Excavating and Construction, Inc.

About Us

Professional Septic Installers

Over 25 years of experience with customer satisfaction at the forefront of our goals. 

We want to handle your septic system because we know sh$$! 

Prompt and Reliable

Septic Inspections, Repair, Design and Installation

Satisfaction Guaranteed

Site Work, Foundations, Drainage, General Construction, Renovations & Disaster Recovery 

Serving customer throughout NJ and NY

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Send us a message, or call us for a quote. Use our contact form to tell us more about your project, and we will connect you with the services to fit your needs. 

Diamond Excavating and Construction, Inc.

Andover, NJ

(973) 995-8301


Monday - Friday: 8am - 5pm

Saturday - Sunday: Closed