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Jones & Beach Engineers, Inc.

85 Portsmouth Avenue, PO Box 219, Stratham, NH 03885

(603) 772-4746

Open Monday - Friday 8:00 AM - 5:00 PM

Sanitary Sewer & Septic System Design

Jones & Beach Engineers  regularly designs residential and commercial systems for single-family homes, multi-family condominiums, mobile home parks, and commercial projects.  This involves meeting with the client to determine design parameters (such as number of bedrooms, size and use of the residential or commercial building), witnessing test pits, topographic field survey, design layout (including pump system, if necessary), and application preparation with submission to municipal and state agencies.  When needed, we provide construction bidding and inspection services to ensure proper installation to meet the client’s needs.


We have six NH Licensed Septic System Designers (two of whom are also Professional Engineers), one NH Licensed Septic System Evaluator, and three NH Licensed Septic System Installers on staff.  We are well-experienced to meet your needs.




* Residential System Designs

* Commercial System Designs

* Mobile Home Park System Design and Upgrade reconstruct

* Large Systems (Greater than 2,500 GPD, P.E. Required)

* Evaluation Inspections and Reports with Recommendations for Improvements to Existing On-Site System Infrastructure

* Test Pit Evaluations to Provide Recommendations for Development Potential

* Sewer Pump Station Design

* Individual Lot Site Assessments