Contact Us For
A Free Estimate!
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
Crawl Space Wood Rot Repair

 

Before and After Pictures from Gilsum
Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems

Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems

Before After
Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems

Before this project in Gilsum, New Hampshire, water was slowly seeping through the stone foundation, leaving behind dark staining and damp conditions along the basement floor; after installing a full perimeter waterproofing system with a sump pump and proper discharge, the water is now captured and redirected before it can reach the space, keeping the basement dry and consistent through changing weather conditions.

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 Gilsum, NH

Happy Customers Surrounding Gilsum, NH
Testimonials
Reviews
Work Requests

Click the icons to see what our customers had to say.

Certified, Highly Trained Professional Basement Waterproofing, Foundation Repair & Crawl Space Repair Company Serving Gilsum, 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 Gilsum, 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!

Gilsum, 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. If moisture has already compromised your crawl space, we can offer complete wood rot repair for your crawl space.

Schedule Your Free Estimate

Case Studies From Gilsum
Basement
A homeowner in Gilsum, New Hampshire, was dealing with persistent moisture along the base of their stone foundation. Water intrusion had been...
Job Stories From Gilsum, NH
Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems

A homeowner in Gilsum, New Hampshire, reached out after noticing dark staining and dampness along the base of their stone foundation. Water had been slowly seeping through the wall and onto the basement floor, especially during periods of heavy rain and seasonal thaw. Over time, the moisture left behind visible mineral staining and created an environment that felt consistently damp.

During the inspection, it was clear that this wasn’t a one-time issue but an ongoing water intrusion caused by pressure building up outside the foundation. The original stone walls, while solid, were never designed to keep water out, allowing moisture to pass through joints and low points where the wall meets the floor.

To address the problem, a full perimeter waterproofing system was installed to capture water at the point of entry and direct it safely away from the basement. A sump pump system was added to handle discharge, along with a clean, durable wall system to help manage moisture coming through the foundation. The combination works together to relieve pressure and control water before it reaches the basement floor.

 

Once completed, the space was noticeably drier and more consistent, eliminating the ongoing seepage that had been affecting the basement. The homeowner now has a system that proactively manages changing conditions year-round, instead of responding to water issues after they arise.

Basement Waterproofing in Gilsum, New Hampshire | Matt Clark's Northern Basement Systems - Photo 1
Work Requests From Gilsum, NH
Project Location: Gilsum, NH
I have a step-cracked and bowing wall along the rear of my garage that I need repaired. It is mostly above grade, and the issue is probably caused by settling.

our service area

Northern Basement Systems service area
Top OTT Tracking Code