McConkey Construction

(603)520-8275

"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

"We are in the process of having our septic system replaced and Mr Mark McConkey is our agent  as Septic System Designer. He has been professional and timely in updating us on the requirements of the New Hampshire Department of Environmental Services for subsurface sites. In addition to designing the system, he also coordinated the process of having it presented to the NHDES for acceptance for our site. He made the process go smoothly and easy for us. We are completely satisfied with the outcome and acceptance of his design by the NHDES. Thank you for all your good work for us."


Robert and Virginia Leyland

"Mr. McConkey's experience and knowledge was critical in obtaining the town and state septic system permits I needed to proceed with the sale of my property in Freedom, NH. His design of a new septic system for my small lot considered all town and state regulations, possible variances thereof, on site testing, addressing neighbor concerns, and included representing me at town board hearings. He produced professional work in the short time available and I'm happy to recommend him."


George Hecker

What Realtors Say About Us

What Clients Say About Us

"Mark provided expert service for me the next day from talking with him and completed a detailed report which explained my septic system. Beyond this job, I've known Mark for over ten years, and have always known him to have the highest ability and integrity in his work. I recommend anyone needing septic work performed to hire Mark."


Scott Carr

As a Realtor with one of the largest Real Estate brokerages in the state of New Hampshire that works with buyers and sellers from all over the Northeast, specializing in property in New Hampshire's White Mountains and the Lakes Region. It is essential that are partner vendors have a commitment to excellence and exceptional service as well as accountability and professionalism. I have been working with Mark McConkey for over 8 years in every capacity from digging a test pit to complete septic designs and installs, site assessments as well as random issues of tree roots in septic lines, docks and all permits for each job. Every situation starts out the same, once the client has a request for a service, the phone call to Mark is placed and the process begins. Mark promptly answers the phone, the task is assessed, with in a 24 to 48 hour time line, Mark and his crew are on the site in person for an evaluation of the job, followed by an emailed quote outlining the fees, the amount of time and job cost. The dates are set and the task and job costs are completed on task on time and on budget. Depending on the year Mark and his crew handle 5 plus jobs a year for clients of Nicole Martinez Homes of KW MTRO, in addition the homeowners and or buyers of these properties continue utilize the services of McConkey Construction for future jobs and do so with confidence.  Mark and his crew are prompt, attentive and very trustworthy. Mark's family has made this community their home and work hard to ensure that each client is fully satisfied. Mark and his family have been in this community a long time. The benefit of that to his clients is that takes the guess work out of many situations, since he knows the history of many properties and who has been there before him as well, town codes and regulations as they have evolved over the years. Mark is a member of the NH legislature and works well with all of the town offices to get permits, meet with the planning boards and code officers regarding each job. The best news from McConkey Construction to date is, that he is now passing his expertise on to his son Dale who is working in various capacities in the firm, alongside is long time crew member Toby. These gentleman are prompt and professional and represent McConkey construction well. My clients own homes and land valued from $20k to $800k and each time we have entrusted their property to McConkey Construction.

Nicole L Martinez Broker Associate
Keller William Metropolitan

"When I decided to place my lakefront home up for sale at the end of May this year, my local realtor suggested that I expand my septic system.  While the reasoning for this made sense, I dreaded the idea of a major project and the accompanying headaches that would involve.  Fortunately, my agent strongly recommended McConkey Construction for the job, and I heeded his advice.
            Mark McConkey designed and installed the new system, and I cannot overstate how pleased I was with the work.
            Mark quickly and efficiently secured the necessary permits for the proposed plan, provided me with a clear and precise estimate, and began work on time as promised.
            His crew was outstanding; a friendly and courteous group of guys with great attitudes and work ethic despite the oppressive heat and blackflies.  A refreshing change from past experiences.  While excavating the site, they took special pains not to disturb my extensive landscaping without my having to ask.  And, upon my request, they even delayed reseeding the sod until I would be back from a business trip and able to water properly.
            In short, the septic design and installation went seamlessly, the entire McConkey team was a pleasant bunch to have around, everything passed inspection, the project stayed on budget, and the house sold the first week on the market.  There was absolutely no reason for my initial misgivings about undertaking the expansion of my septic system.  I feel fortunate to have known to hire McConkey Construction for the project.

Katherine Christman
Long Sands Rd.


"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‚Äôs 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

"We were selling our house and had a closing date that we had to meet. During the buyers inspection it was discovered that our septic system was in failure. We were referred by our realtor to Mark McConkey. We informed Mark of our situation and the time frame that we were under in order to sell our house. He came to our house right away, decided what was needed and got right on it. Unfortunately, during his surveying process, Mark was attacked by a swarm of bees. He had a reaction from the stings and ended up in the hospital. Through all of this he still made sure our deadline was met. Mark and his crew did an excellent job. We could not thank him enough for all that he did for us."


Charlie & Linda Wakefield

"I Contacted Mark McConkey to quote me a price on a septic system installation. After reviewing the design plan, Mark found an error in the layout and had it corrected at no additional cost. His workmanship was professional, fairly priced and completed on the agreed time.

I would highly recommend Mr. McConkey for any septic related project."


Warren Seavey

"Mark is one of the first persons i consult with for septic design and state regulations with regard to property development. He is co-operative, knowledgeable, and willing to meet with the clients and spend time researching solutions to issues."


Real Estate Broker Susan Perron

"Thank you Mark For your help on the Scotch Pine Lot. I really appreciate the extra effort."


Denise Williams

Real Estate Broker for Maxfield Real Estate