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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 Cornish
Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.

Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.

Before After
Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems. Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.

When a homeowner in Cornish, New Hampshire, wanted to make their wet basement dry all of the time, they hired Matt Clark's Northern Basement Systems.

Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.

Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.

Before After
Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems. Basement Waterproofing in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.

When a homeowner in Cornish, New Hampshire, wanted to waterproof their basement, they contacted 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]
More Awards

Northern Basement Systems serving Cornish, NH

Happy Customers Surrounding Cornish, NH
Testimonials
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Certified, Highly Trained Professional Basement Waterproofing, Foundation Repair & Crawl Space Repair Company Serving Cornish, NH

Northern Basement Systems not only adheres to the highest industry standards, but we also strive to be an industry leader in the field of home improvement and basement repair. To set ourselves apart from our competition we only use state-of-the-art products and technology which are designed to fix your home in the most efficient and reliable way. We are an authorized Basement Systems and Foundation Supportworks dealer in Cornish, NH with the experience and dedication to getting the job done right the first time. We believe in our work and stand behind everything that we do, we have several warranties to prove it; a 25-year warranty against manufacturing defects on Foundation Repair products, crawl space encapsulation systems, French drains & perimeter drains. And to get the ball rolling we also offer financing options and provide FREE written estimates and inspections!

Cornish, NH’s Leading Basement Waterproofing Company

Regardless of how you use your basement, having a safe and dry space is critical for you and your family. We understand that having a wet basement is incredibly frustrating and can often make you feel helpless. There are usually many factors that lead to a basement being wet and the sheer number of issues may make your head spin. However, because we understand how important your basement is to you and your family we have devoted ourselves to providing solutions that you can rely on. We have a staff full of certified technicians that are each experienced, professional and are guaranteed to give you the results you want in a quick, effective and permanent way. We also offer a transferable lifetime warranty on perimeter & French drain waterproofing systems!

To learn more about basement waterproofing cost, call or click today!

Schedule a Free Basement Waterproofing Estimate

Foundation Repair to Keep Your Home Safe

The foundation of your home is the building block that the rest of your home depends on. Even the smallest foundation issue needs to be addressed seriously because even the most basic issue can lead to a major problem down the line. Even if you don’t think the issue is a big deal call Northern Basement Systems, a company that specializes in foundations, to truly determine the cause of the issue. Northern Basement Systems uses the best products in the industry and has the experience and knowledge to use them efficiently. To learn more about our services such as foundation leveling, basement wall repair, foundation wall repair or foundation underpinning, contact us today!

Crawl Space Repair & Encapsulation Expert

Your home’s crawl space is often neglected. It’s usually too small to be seen as valuable and most people dread going into their crawl spaces because they are often damp and dark spaces that are so low they hurt your back. However, we feel like crawl spaces can be more valuable than that. We offer a variety of crawl space services that are guaranteed to turn your crawl space, regardless of the condition that it’s in, into an inviting and safe storage space. We can make any repairs that are needed and also encapsulate the space with a durable white plastic that brightens it up and creates a barrier from moisture.

Schedule Your Free Estimate

Case Studies From Cornish
Basement
A homeowner in Cornish, New Hampshire, faced ongoing issues with water seeping into their basement during heavy rains and snowmelt. Over time, the...
Job Stories From Cornish, NH
Crawlspace Repair in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems.
  1. Matt Clark's Northern Basement Systems didn't just repair the Smiths' crawlspace; they transformed it into a functional storage area. With precision and expertise, Matt Clark's team encapsulated the crawlspace to seal it off from external threats and maximize usable space in the home.

With the crawlspace transformed into a usable storage area, the Smith family could finally make the most of their home's square footage. Matt Clark's team's professionalism and dedication not only resolved their immediate concerns but also enhanced the functionality of their home.

Crawlspace Repair in Cornish, New Hampshire, by Matt Clark's Northern Basement Systems. - Photo 1
Work Requests From Cornish, NH
Project Location: Cornish, NH
Water leaks through a crack in wall, in the basement, when it rains.
Project Location: Cornish, NH
Active seepage and dampness in basement corner.
Project Location: Cornish, NH
I have three vertical foundation cracks measuring approximately 1" wide by 7' tall in a 45-year-old poured concrete foundation that require concrete injection repair.
Project Location: Cornish, NH
I have some cracks in the basement and some minor water seepage in certain areas in heavy rain. We a sub pump that works well. Would like a professional to look at it and go over options for keeping water out and maintaining our foundation. Thanks!
Project Location: Cornish, NH
Bought a 4 unit rental built back around 1840ish. Has a dirt floor which needs to have something done to it causing mold issues to upper floors.
Project Location: Cornish, NH
Need work in crawl space. The floor insulation will have to go under all pipes and wires. Can insulation be crawled on? Would falling fiberglass insulation be replaced? With what? Would the dehumidifier drain outside? Would it be big enough for a double wide space? Contact via email - not phone.
Project Location: Cornish, NH
We wish to improve our dirt floor and field stone walled basement. Our reasons are to control foul odors, stop wood rot, stop dirt tracking, and control moisture for equipment storage. The basement is approximately 900 sq. ft. and 6.5-7 ft deep. We would like a cement floor. and sump pump system installed, This will require excavating up to a foot of soil, so that the new cement floor will match the height of existing cement pads where the boiler and oil tank sit. We are considering whether the field stone walls will need to be sealed to accomplish our goals.
Project Location: Cornish, NH
I have water leaking into my basement from a crack in the bottom of a corner of the foundation. There is also water coming coming in from a pipe that has an electrical wire in it.
Project Location: Cornish, NH
I have a garage that is on a slab. it is connected to the mudroom of our house which is on frost walls. The slab is cracked from the middle to all four sides. frost causes the crack to lift. I am concerned eventually the garage will begin to move from the house. I am looking at other options of securing a new or existing but repaired slab without having to jack up the garage and install a new slab with frost walls. Thanks, Mark
Project Location: Cornish, NH
Need a estimate to repair cracks in poured concrete foundation. Thanks
Project Location: Cornish, NH
Wet basement ground water running through the basement area. A drain was installed years age.

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