Serving Connecticut, Westchester and Putnam Counties

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Reviews From Fitzwilliam
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 Fitzwilliam
Fixing a Bowing & Cracked Wall in Fitzwilliam, New Hampshire, with Matt Clark's Northern Basement Systems.

Fixing a Bowing & Cracked Wall in Fitzwilliam, New Hampshire, with Matt Clark's Northern Basement Systems.

Before After
Fixing a Bowing & Cracked Wall in Fitzwilliam, New Hampshire, with Matt Clark's Northern Basement Systems. Fixing a Bowing & Cracked Wall in Fitzwilliam, New Hampshire, with Matt Clark's Northern Basement Systems.

Matt Clark's Northern Basement Systems came to the rescue for an elderly couple in Fitzwilliam, New Hampshire, when her cracked and bowing basement wall was deemed unsafe by a structural engineer.  Northern Basement Systems installed a PowerBrace System to ensure the wall was properly supported and safe for the owner. 

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

Locally Proven Basement Waterproofing & Foundation Repair Company in Fitzwilliam

Happy Customers Surrounding Fitzwilliam, NH
Work Requests

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

Fitzwilliam, 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.

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Work Requests From Fitzwilliam, NH
Project Location: Fitzwilliam, NH
Basement window frames are corroded and difficult to insulate
Project Location: Fitzwilliam, NH
I own a farmhouse built in the 1850's which has had insulation installed in the attic, walls and basement. The kitchen, however, which is over a crawl space has not been fully insulated and with these frigid days I can definitely feel the cold air around the baseboards and when I open cabinet doors.I would love to have an estimate as to how much it would cost to insulate the crawl space area. Thank you.
Project Location: Fitzwilliam, NH
Hello, my husband and I recently bought an old house in Fitzwilliam, NH and wanted to have a dehumidifier and insulation installed in the basement and vapor barrier and insulate the crawl space. Would love to schedule a time for someone to take a look and give us a quote. Thanks, Amanda
Project Location: Fitzwilliam, NH
I have a crack running from a basement window down to the floor. It has been there since my house was put in and never got fixed properly by the contractor. Water leaks in when it rains or in the spring when the snow starts to melt. Sand seems to be coming in now.
Project Location: Fitzwilliam, NH
Water in the basement
Project Location: Fitzwilliam, NH
I have a small area (about 3 ft) where ground water enters. It seems to be the cold joint between the footing and the wall. The wall above the leak was repaired in the past.
Project Location: Fitzwilliam, NH
We recently moved into an older home in Fitzwilliam and realized we have a few leaks in the basement when it rains/snow melts. One is coming through the stone and there is another coming down from the side of the wall in the basement. We were wondering if this is something you might be able to help us with? We do have a sump pump currently but the water levels have been rising well above it and I'm not sure how old the pump is. Please let me know. Thank you!
Project Location: Fitzwilliam, NH
Wet basement, sill work-150 year old house.
Project Location: Fitzwilliam, NH
Basement flooding hydrostatic pressure pushes water up through cracks in the floor. Small ranch.
Project Location: Fitzwilliam, NH
15x15 dirt floored basement area. Used to be only a bit damp, now taking on considerable water after melt off and rain. Old well there but water appears to be from runoff. Did some regrading in the fall but that doesn't seem to have done much. Field stone walls need hydraulic cement, sump pumps needed, perhaps drainage pipes. I'd love a temporary solution to make it better through the winter since I'm presently carrying buckets. Perhaps schedule full job in the early spring.
Project Location: Fitzwilliam, NH
I have cracks in basement floor, white and black mold.

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