Excavation & Septic Services You Can Trust

PKM Contractors, Inc. was started in 1993 by Patrick K. McDowell of Dennis, Massachusetts. For more than 30 years, Patrick has operated the company and built its reputation through excavation, site development, septic, and construction work throughout the Cape Cod community. PKM remains a privately owned, Dennis-based company.

Today, the company works on residential, commercial, and infrastructure projects. PKM handles everything from preparing a property for construction to underground utility work, roadwork, material hauling, and related site services. The company’s long history on Cape Cod is a central part of how it serves local property owners and contractors today.

PKM is based in Dennis and serves Cape Cod, South Eastern Massachusetts, Nantucket, and Martha’s Vineyard. Its services are available for residential properties, commercial developments, and infrastructure-related work, depending on the needs and location of the project.

The scope can range from individual tasks, such as excavation for a home addition or a sewer line installation, to broader site-development work involving grading, drainage, utilities, and material hauling. If you have a project outside the immediate Dennis area, the best next step is to contact PKM with the location and an outline of the work so the team can discuss the specifics.

PKM provides site preparation, site grading and leveling, earthmoving and earthwork, foundation excavation, foundation development, building addition excavation, and pool excavation. The company also handles demolition, pre-construction planning, and site management. These services support the early stages of projects where the ground needs to be cleared, shaped, excavated, or prepared for new construction.

For example, a home addition may require excavation for the new foundation, while a larger commercial site may need earthmoving, grading, and coordination with utility and drainage work. PKM can discuss which site services fit the property and the planned construction before work begins.

Yes. PKM offers septic system installation, septic system pumping, advanced and alternative septic system installation, drain cleaning, and Title V inspections. The company also provides interior and exterior grease trap services, including work associated with the drainage and wastewater needs of residential and commercial properties.

Beyond septic work, PKM handles drainage installation and drainage repairs, culvert installation, and erosion and sediment control. These services can be important when a site needs to manage water movement or prepare for other construction work. The appropriate approach depends on the property, existing systems, and the work being proposed.

Yes. PKM performs water main installation and replacement, sewer line installation, and underground utility installation for residential, commercial, and infrastructure projects. Related services include drainage installation and repairs, culvert installation, and excavation or site preparation needed to access or install below-ground utilities.

PKM also offers road construction, road repairs, sidewalk construction, sidewalk repairs, curbing, and parking lot construction. These projects may involve several stages of work, such as earthmoving, grading, utility preparation, and surface construction. Contact PKM with the project location and requirements to discuss the services involved.

PKM provides excavation, land-based site preparation, grading, earthmoving, and site management for residential and commercial projects. Each job is reviewed based on access, ground conditions, and the scope of work needed before construction begins.

PKM also provides material hauling and trucking, construction equipment rentals, and the supply of materials such as loam, stone, and fill. These services can complement excavation, site development, roadwork, and other construction jobs, or be discussed individually when a project needs transportation, materials, or equipment.