Business Details
28 Years
experience
Expert Excavation & Septic Services in Marlborough, NH
David O'Neil Construction is a fully licensed and insured excavation company serving Southern New Hampshire and the Monadnock Region. With over 20 years of industry experience and a combined 38 years of expertise in construction trades, we specialize in residential and commercial excavation projects. Our team operates a modern fleet of equipment, including excavators, dump trucks, and specialized tools for septic system installations and drainage solutions. We prioritize proper drainage techniques, durable materials, and precision in every project, from new home site preparation to driveway repairs.Our commitment to quality is demonstrated through meticulous cellar hole construction with 6-8 inch stone bases and silt paper-wrapped footing drains. We maintain transparent communication throughout projects, providing detailed estimates and explaining technical processes to ensure client understanding. Our equipment storage facility on Route 101 in Marlborough enables rapid response times for customer needs across the region.
Services
Excavation Services
Septic Systems
Driveway Repairs
Drainage Solutions
Trucking Services
Details
- Year established: 1998
Highlights and features
- 20+ years of excavation and construction experience
- Fully licensed and insured for septic installations in NH
- Proper drainage techniques with 6-8 inch stone bases
- Modern equipment fleet for efficient project completion
- Detailed explanations of septic system maintenance requirements
What people say
Top notch
Prompt service
Highly recommend
Durable solutions
Transparent pricing
Services
Excavation Services
We provide comprehensive excavation solutions for residential and commercial projects. Our services include site preparation for new construction, driveway installation and repair, and drainage system implementation. With a modern fleet including excavators, dump trucks, and specialized equipment, we handle projects of all sizes. Our team's 20+ years of experience ensures proper grading and drainage solutions that extend the lifespan of your infrastructure investments.
Septic Systems
Our septic system services cover complete design, installation, and repair processes. We collaborate with licensed soil scientists to create optimal system designs and use durable materials for long-lasting installations. We specialize in both conventional systems and advanced Enviro-Septic technology that reduces system size by up to 75%. Every installation includes proper sand fill coverage and hydroseeding for complete site restoration.
Drainage Solutions
We address water runoff issues with customized drainage solutions. Our expertise includes French drain installation with durable rubber lining, foundation drain systems, and culvert replacements. We construct drainage systems that prevent basement flooding by directing water away from structures through properly graded channels and stone collection systems. Our solutions consider New England's weather patterns to ensure year-round effectiveness.
Driveway Repairs
We repair and maintain driveways with proper base preparation and drainage considerations. Our process includes removing failed materials, installing compacted stone bases, and applying appropriate surface treatments. We address common issues like rutting, potholes, and water erosion through comprehensive repairs that extend driveway lifespan. We also provide yearly maintenance recommendations to maximize investment longevity.
Trucking Services
Our trucking division handles material transport for both residential and commercial projects. We deliver various construction materials including gravel, sand, and fill dirt to project sites. Our experienced drivers operate modern equipment to ensure timely delivery of materials needed for excavation, septic installation, and drainage projects. We accommodate both small personal projects and large-scale construction needs.
People
David O'Neil
Owner
With 38 years in construction trades since 1981, David founded the company in 1998 after managing construction projects for Belletetes. He transitioned from carpentry to excavation to control project timelines and now operates a fleet of specialized equipment. A lifelong local resident, he serves as Assistant Chief for Harrisville Fire Department and supports community hockey teams.
Matthew Janelle
Equipment Operator and Estimator
As David's son, Matthew brings hands-on expertise in equipment operation and project estimation. He works directly with clients to assess excavation needs and provides accurate cost projections. His field experience includes operating excavators, backhoes, and specialized machinery for septic installations and drainage projects.
Janelle Hodgman
Office Manager
Janelle manages administrative operations and client communications for the company. She handles project documentation, permitting processes, and customer inquiries. Her organizational skills ensure smooth coordination between field operations and client requirements throughout project lifecycles.
Questions
What excavation services do you offer?
We handle septic system installations, driveway repairs, drainage solutions, new home site preparation, and trucking services for residential and commercial clients.
How much does a septic system cost?
Septic systems typically range from $20,000 to $30,000 depending on design complexity and site requirements.
How often should septic tanks be pumped?
We recommend pumping septic tanks every 3 years, or more frequently with heavy usage to maintain system longevity.
Do you offer emergency services?
While we don't provide 24/7 emergency services, we prioritize urgent drainage and septic issues during regular business hours.
What areas do you serve?
We serve Southern New Hampshire including the Monadnock Region, with equipment based in Marlborough for quick response times.
