What Clients Say About Us

Our Team

Septic Application Status

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Quality Work



Shoreland/Wetland Application Status

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Choosing the right professional to help with home and property projects is as important as the materials you use. A contractor that is invested in protecting the lake is important, and making sure they are trained should not be overlooked.

As a LakeSmart Service Provider Partner we understand the value of clean and healthy lakes to our environment, our personal well-being, and our New Hampshire communities and economy. We are committed to doing work in a way that supports clean and healthy lakes in New Hampshire and help property owners live in a lake-friendly way.

We care about our lakes

McConkey Construction brings you the highest quality site work, septic designs and installs, Excavation and State and Local Permits acquisition.

Choosing a general contractor that you can trust could be difficult. McConkey Construction has a long track record of completing projects with the customers needs and budget in mind.  If you have any questions please don't hesitate to call us at (603)520-8275 or email at McConkey2@Hotmail.Com

Recently we moved our mobile home onto a private piece of land. We hired McConkey Construction as our General Contractor to handle a lot of the site work.  Because we are from out of State, we needed a company we could trust in getting the work done correctly.  The Company’s knowledge and professional crew solved problems that arise. The Company provided the test pit, septic design and installation, driveway excavation and cement slab. The crew worked well with other contractors on the job. We were very pleased with McConkey Construction Company and appreciate all the work the crew put into our project. This company went above and beyond to get this done for us.   Thanks again for all your hard work.

Gail & Fred Walley

Mark has been a Permitted Septic Installerfor 25+ years and Septic Designer for 20+ Years. His extensive knowledge of zoning is derived from his years of experience Chairing the Ossipee ZBA, and Executive member of the Lakes Region Planning commission.His son Dale is also a Permitted NH Septic Installer and Designer.

See more about us

  • Start to Finish Project Management
  • Site Planning & Design
  • Excavation
  • Septic Designs and Installations
  • Building and Zoning Permits
  • Shore land and Wetland Permits
  • Waterfront Assessments
  • Masonry Walls and Landscaping
  • Septic Inspections
“ I have had the pleasure of knowing and working with Mark McConkey and his crew for almost 15 years. He has been most instrumental in helping my buyer and seller clients with everything from septic design/installation., site assessments, shore land and dock permitting, town Zoning board permits and approval process as well as a host of other activities including but not limited to property cleanouts, demo, ect. Mark is always on time, on budget and very professional to deal with. His knowledge of these areas is outstanding  not to mention he is a  really great person,family man and multi business owner/operator who cares about the local communities and residents he services.  I feel incredibly lucky to have him as a local resource“ 

-Gerard Costantino of Costantino Real Estate