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Products & Services
Foundation Repair Services & Products
Push Pier Underpinning for Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-Lock Wall Anchors
Geo-Lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
PolyLevel Commercial Concrete Lifting
EZ Post Deck Repair
ShotCrete Wall Restoration
Bowing Wall Repair Solutions
Cracked Wall Solutions
Buckling Wall Repair

Basement Waterproofing Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement to Beautiful Pre-Finishing Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
SaniDry Dehumidifier
Sump Pump Systems

Basement & Crawl Space Insulation
Basement Insulation Wall Panels
Basement Insulation Flooring
Basement Floor Tiles
Crawl Space Insulation
Crawl Space Insulation Panels
Crawl Space Encapsulation
Crawl Space Vapor Barriers


Before and After Pictures from Coos County
Crawlspace Repair in Groveton, New Hampshire, by Matt Clark's Northern Basement Systems.

Crawlspace Repair in Groveton, New Hampshire, by Matt Clark's Northern Basement Systems.

Before After
Crawlspace Repair in Groveton, New Hampshire, by Matt Clark's Northern Basement Systems. Crawlspace Repair in Groveton, New Hampshire, by Matt Clark's Northern Basement Systems.

When a homeowner in Groveton, New Hampshire, wanted to repair their home's crawlspace, they hired the experts at Matt Clark's Northern Basement Systems.

Company Awards
Better Business Bureau Certificate of Customer Satisfaction Excellence- 2016 Award
We are proud to recive the Better Business Bureau Certificate of Customer Satisfaction Excellence- 2016 Award. We recived this our... [Read more]
Better Business Bureau Certificate of Customer Satisfaction Excellence
Better Business Bureau Certificate of Customer Satisfaction Excellence. Customer loyatly score of 100% and any customer complaints filed with... [Read more]
Better Business Bureau Certificate of Accreditation
We proudly became accredited with the Better Business Bureau on August 5th, 2011... [Read more]
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Coos County's Trusted Basement Waterproofing Company

Happy Customers Surrounding Coos County, NH
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For FREE, no cost or obligation basement waterproofing, foundation repair, crawl space repair, or sump pump installation estimate in Coos County, NH, please fill out the form to the right completely. Northern Basement Systems will contact you shortly.

Certified, Highly Trained Professional Basement Waterproofing, Foundation Repair, Crawl Space Repair Company Serving Coos County, New Hampshire 05667

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement and basement repair related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems and Foundation Supportworks dealer in Coos County, NH.

Services we offer in Coos County:

  • Wet/flooded basement waterproofing solutions.
    • Sump pump installation
    • Leaky and damp basement repair
    • Basement seepage repair
  • Lifetime warranty on perimeter & french drain waterproofing systems.
  • Foundation & structural repair solutions by foundation specialists
    • foundation crack and slab repair
    • helical and foundation pier installation
    • foundation stabilization
    • foundation underpinning and leveling
    • Commercial Concrete Lifting & Leveling
  • 25-year warranty against manufacturing defects on Foundation Repair products.
  • Crawl space sealing with CleanSpace vapor barrier.
  • 25-year warranty on crawl space encapsulation systems.
    • Crawl space humidity control & insulation
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Job Stories From Coos County, NH
Getting Rid Of That Annoying Basement Water in Berlin, NH

Steve lives in a house that’s nearly one hundred years old. The foundation is in good shape yet he experiences water in his basement every time a heavy rain comes through and also during the spring season. He believes that the problem is due to a few cracks in the wall. He wasn’t sure what to do but after some searching he found Matt Clark’s Northern Basement Systems.

Matt Clark and his team of experts have seen this problem again and again in their line of work. They installed a SuperSump pump system, their Waterguard system, a LawnScape outlet and a discharge line. The Waterguard system runs along the base of the walls, collecting the water from the exterior soil and pushing it to the pump. From the pump, the water is channeled through the discharge line and released through the outlet, at a safe distance from the house. With all these installations in place, Steve’s basement will be much drier during storms and the spring season.

Steve had a very common problem. Many homeowners experience basement water. The problem may seem overwhelming but for the experts, the solution is straight forward. Give Matt Clark a call for a free estimate. He’s happy to help the Berlin community stay safe and dry.

Keeping The Basement Humidity Levels Healthy & Low in Berlin, NH

Eric wanted to keep his basement dry. The basement would experience leaking regularly. Eric was concerned that the water coming into his basement may lead to mold problems. He wanted to know what options were available to him. So he reached out to Matt Clark's Northern Basement Systems for advice.

Matt Clark and his team of experts told Eric about the premier quality products that they offer. This included their sump pump systems and their waterguard system that could address the leakage problems along with their SaniDry Upright system. The problem Eric wanted to address first was the potential for mold to grow and thrive in the basement. Among the options listed, Eric decided to have the experts install the SaniDry Upright system. This dehumidifier system was designed specifically with basements and crawlspaces in mind. It contains a powerful 300CJM Fan, a self-draining (optional) condensate pump, a MERV-11 air filter and is capable of removing up to 109 pints of water per day. Once this system was installed, Eric was at ease knowing that the humidity level in his basement wouldn’t allow mold to grow.

Even though Eric only elected to go with one step of the waterproofing process, he took the right steps and did what he felt was best. Matt Clark may be an expert regarding all things in the basement, but he knows that it is ultimately the homeowner’s choice. Matt and his team of experts don’t know any phony gimmicks, they want to give you their experience and knowledge to help you make the best decision for your basement.

Basement Finishing in Milan, NH

    The homeowners reached out to Northern Basement System and explained their hopes for their finishing basement project.  The homeowners don’t have flooding concerns but were looking to make the space more useable and clean to really expand the living quarters of the home.                                                                                                                 To transform the concrete walls we installed our Everlast Wall Panels to give it a real finish while also being waterproof, mold resistant and durable. The team then installed our ThermalDry Tile Flooring System to reduce the cold and damp feeling of the floor, while also providing a finished look with a waterproof and mold resistant solution. The homeowners are thrilled with the project outcome and are excited to use their new space!

Water Leaking Through Basement Seams in Randolph, NH

After a home addition, the owners started having leaking through the floor and wall seams of the new basement. The homeowners are consistently having to wet vacuum to eliminate the standing water in the basement. They called for a FREE estimate from our system design specialist. 

Our installation specialists installed our most reliable pump, the TripleSafe. This pump system includes three levels of protection; a primary pump, secondary pump, and a battery backup pump, to ensure a dry basement regardless of power outages or pump failure. They also installed a WaterGuard System on all outside walls, and a CleanSpace Wall System. With all of these elements in place, the homeowners can now enjoy their home addition without worrying about vacuuming water or water damage in their home! 



Water Leaking Through Basement Seams in Randolph, NH - Photo 1
Basement Waterproofing and Remodel in Lancaster, NH

Bill in Lancaster, New Hampshire has been battling water in his finished basement and the bulkhead in specific is chronically leaky. Bill worries about flooding, especially during the winter months and times of snowmelt. He also was concerned with leaks developing in other areas of the basement as well. He wanted to find a fix to the problem so that he didn't have to worry anymore and he called the right people to help! 

Northern Basement Systems visited the space, provided a FREE ESTIMATE, and proposed a solution to fix Bill's concerns! 

First, our team removed the existing walls and framing that were damaged from the water. Once the basement was empty they were able to start installing the waterproofing system. To ensure that no water enters the basement, they installed a full perimeter WaterGuard Drainage System, and a SuperSump Premier Sump Pump System. With these systems in place, the water outside the foundation will be collected and pumped out before it is able to enter the basement.

To turn this basement into a finished space, our team installed EverLast Wall Panelling on the perimeter walls with TheramalDry Carpeted Basement Flooring and finished with PVC trim board. These products are much different than traditional building materials because they are waterproof and mold resistant, making them the best product to put in a basement! 

With all of these systems in place, this basement will remain dry and beautifully finished for years to come! Call 855-DRY-TIME to find the BEST solution for your basement! 

Basement Wall Repair in Gorham, New Hampshire, by Matt Clark's Northern Basement Systems.

The Smith family lived in a beautiful home in Gorham, New Hampshire, with a spacious basement they used as a playroom for their children. One day, they noticed that their basement walls were beginning to lean inward, causing cracks in the ceiling and at the top of the walls. They were worried their home was in danger of collapsing and didn't know what to do.

One of their friends recommended contacting Matt Clark's Northern Basement Systems, a company specializing in basement waterproofing and structural repair. They called the company and scheduled a free estimate, and soon a team of experts arrived at their home to assess the situation.

The team consisted of a system design specialist and a structural engineer, who worked hand in hand to identify the cause of the wall failure. They discovered that the walls were not correctly supported and were at risk of collapsing. They recommended installing a Power Brace Wall Support System to keep the walls and prevent further damage permanently.

Matt Clark's Northern Basement Systems quickly emerged and installed the Power Brace Wall Support System. The system consisted of steel beams attached to the walls and anchored to the floor and ceiling, providing the walls with the support they needed to stay upright. The installation process was completed in a few days, and the Smiths were impressed with the speed and efficiency of the work.

With the Power Brace Wall Support System in place, the Smiths were relieved that their home was safe and secure. They were also happy that they could save their beloved basement, which they had turned into a playroom for their children. The children could now play and have fun in their basement without any worries.

The Smiths were grateful to Matt Clark's Northern Basement Systems for saving their home and providing peace of mind. They recommended the company to their friends and family, and they continued using the basement as a playroom for many years.


Basement Wall Repair in Gorham, New Hampshire, by Matt Clark's Northern Basement Systems. - Photo 1
Crawlspace Winterizing & Waterproofing in Whitefield, New Hampshire, by Matt Clark's Northern Basement Systems.

A homeowner in Whitefield, New Hampshire, was dealing with a damp and smelly crawlspace. The moisture made their home smell terrible and caused cold drafts. They were at their wits' end, unsure of what to do.

Then, they heard about Matt Clark's Northern Basement Systems and their basement and crawlspace waterproofing expertiseg. So they decided to give them a call, hoping for a solution to their dampness problem.

Matt and his team arrived at the home and quickly assessed the situation. They listened to the homeowner's concerns and explained how they could waterproof and encapsulate the crawlspace to keep it dry and free of odors.

The team got to install a state-of-the-art sump pump and a clean space vapor barrier to keep the moisture out. They also added a Sani Dry Sedona dehumidifier to keep the air clean and dry and insulated the area with closed-cell spray foam to winterize it.

The result? The homeowner no longer had to deal with a damp and smelly crawlspace. Instead, their home was dry, warm, and smelled fresh, even during the wettest of storms. The added insulation also made their home more energy-efficient, saving them money on heating and cooling costs.

In the end, the homeowner was highly grateful for the excellent service and quality workmanship Matt Clark's Northern Basement Systems provided. They would highly recommend them to anyone needing basement or crawlspace waterproofing services.

Crawlspace Winterizing & Waterproofing in Whitefield, New Hampshire, by Matt Clark's Northern Basement Systems. - Photo 1
Crawlspace Winterizing & Waterproofing in Colebrook, New Hampshire, by Matt Clark's Northern Basement Systems.

A homeowner in Colebrook, New Hampshire, had lived in their home for many years and loved it, but one problem made it miserable - a nasty crawlspace. The crawlspace had been causing the entire house to smell bad and have cold drafts and floors during the winter. They tried everything they could to solve the problem, but nothing seemed to work.

They heard about Matt Clark's Northern Basement Systems and their expertise in winterizing, encapsulating, and waterproofing crawlspaces. They reached out to them, and they quickly scheduled a consultation. During the consultation, Matt and his team inspected the crawlspace and determined it was in dire need of attention. They presented the homeowner with a plan to winterize, encapsulate, and waterproof the area and also suggested installing a dehumidifier to keep the air dry.

The team worked efficiently, and the crawlspace was transformed within a week. The smell was gone, the floors were warm, and there were no more cold drafts. The homeowner was thrilled with the results and was happy to have a clean and healthy living environment.

Matt and his team also installed a dehumidifier to dry the air and prevent mold growth. The homeowner was amazed at how well the dehumidifier worked. They no longer had to worry about the smell or the cold drafts. Their home was now a comfortable and healthy place to live.

The homeowner was grateful to have found Matt Clark's Northern Basement Systems. Their expertise and dedication to solving her problem transformed her life and made her home a comfortable and healthy place to live.

Crawlspace Winterizing & Waterproofing in Colebrook, New Hampshire, by Matt Clark's Northern Basement Systems. - Photo 1
Basement Waterproofing in Groveton, New Hampshire, by Matt Clark's Northern Basement Systems.

The Smith family's basement, located in Groveton, New Hampshire, was constantly plagued by dampness, rendering the space virtually unusable. Concerned about potential damage to their property and health risks associated with mold and mildew, they reached out to Matt Clark's Northern Basement Systems for help. Recognizing the urgency of the situation, Matt Clark's team quickly assessed the basement's waterproofing needs and implemented a comprehensive solution tailored to the Smiths' home. Utilizing state-of-the-art techniques and high-quality materials, they installed a combination of interior and exterior waterproofing systems, including drainage channels, sump pumps, and moisture barriers.

With the waterproofing measures in place, the Smiths witnessed a dramatic transformation in their basement. Gone were the musty odors and damp patches, replaced by a dry and comfortable environment. They were thrilled to reclaim their basement as usable living space for storage, recreation, or additional living quarters. Thanks to Matt Clark's expertise, the Smith family could now enjoy peace of mind knowing their basement was protected against future water intrusion

Basement Waterproofing in Groveton, New Hampshire, by Matt Clark's Northern Basement Systems. - Photo 1
Serving the following Coos County, NH zip codes
Groveton 03582, Berlin 03570, North Stratford 03590, Lancaster 03584, Gorham 03581, Whitefield 03598, Colebrook 03576, Twin Mountain 03595, Milan 03588, Jefferson 03583, Pittsburg 03592, West Stewartstown 03597, Bretton Woods 03575, Randolph 03593, Errol 03579, Mount Washington 03589

our service area

Northern Basement Systems service area