Contact Us For
A Free Estimate!
Products & Services
Radon Mitigation
Radon Testing
Radon Detection
Radon Abatement
Radon Mitigation System

Basement Repair 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

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 Concrete Lifting
EZ Post Deck Repair
Shotcrete Wall Restoration

Before and After Pictures from Windham
Crack Seal, Windham, NH

Crack Seal, Windham, NH

Before After
Crack Seal, Windham, NH Crack Seal, Windham, NH

This homeowner in Windham, NH had a crack in their foundation wall, which had been patched over the years, but still let in moisture. They needed a more permanent fix. We sealed the crack with a polyurethane injection, which expands inside the crack as a foam and reaches far into the cravice to prevent the water from coming through. The surface of the crack is then coated with an epoxy to add an extra layer of protection. This two part system guarantees no further moisture will come in through the foundation crack.

Sinking Lake Home on Piers, Windham, NH

Sinking Lake Home on Piers, Windham, NH

Before After
Sinking Lake Home on Piers, Windham, NH Sinking Lake Home on Piers, Windham, NH

This seasonal cottage on Cobbetts Pond in Windham, NH was suffering from sagging floors, settlement, and unstable soils. Water was constantly running down a hill toward the home and the lake just beyond it. As water flowed through the soil beneath the home, the concrete piers and wood posts settled over time. The home needed more permanent stabilization if it was going to last.


Erickson Foundation Supportworks installed EZ Post helical piers around the perimeter of the home. SmartJack columns were also installed beneath to replace concrete piers and rotten wood posts.

Garage Slab Resurfacing, Windham, NH

Garage Slab Resurfacing, Windham, NH

Before After
Garage Slab Resurfacing, Windham, NH Garage Slab Resurfacing, Windham, NH

The concrete surface of this garage slab in Windham was in need of some resurfacing to look new again.

Company Awards
Angi Super Service Award
Angi Super Service Award - 2023... [Read more]
Large Business of the Year - Gr. Hudson Chamber of Commerce.
We're proud to be recognized by the Greater Hudson Chamber of Commerce as Large Business of the Year for 2021!... [Read more]
Best of HomeAdvisor - 2020
Best of HomeAdvisor - 2020... [Read more]
More Awards

Local Wet Basement Repair & Concrete Specialists

Overall, for a problem my wife and I were very concerned about, we could not be happier with the outcome....
Happy Customers Surrounding Windham, NH

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

Reviews From Windham
Testimonials From Windham
I was very happy with quality and pricing of the repair of the crack in my foundation.
Testimonial by Anna K. from Windham, NH
The team did a great job. Very helpful and knowledgeable!
Testimonial by Alex T. from Windham, NH
The job was done on time and professionally. Workers were courteous and helpful.
Testimonial by Rick T. from Windham, NH

Windham’s Go-To for Foundation Repair, Concrete Repair & Basement Waterproofing

Contact Erickson Foundation Solutions for top-notch service from local experts when your home needs repairs and maintenance. Trust them to provide proven-effective solutions to foundation problems, cracked concrete, leaky basements, and more in and around your home. They offer free estimates on all of their services listed below.

Services offered in Windham and nearby:

  • Basement waterproofing
  • Foundation repair
  • Concrete repair
  • Crawlspace encapsulation

Get started by scheduling a free service estimate today. Call or click below to fill out a simple online form.

Reliable Foundation & Concrete Repair in Windham

Water doesn't just enter your home through a leaky basement. It can also enter through a compromised foundation or any damaged concrete slab. This can include garage floors, driveways, pool decks, steps, and sidewalks. Cracked, heaving concrete can cause fall risks and allow water to pool due to the unevenness, potentially making your home unsafe. Erickson Foundation Solutions will repair and level sagging, cracked, crumbling concrete in and around your home with efficient, durable solutions.

Concrete repair solutions offered:

  • Concrete lifting and leveling with lightweight PolyLevel®
  • Concrete sealing with one application of SealantPro™
  • Tinted concrete sealer with DecoShield™

Poor soil quality can contribute to foundation damage. Softening soil, shrinkage, and poorly compact soil can cause your foundation to shift and crack, leaving your home susceptible to damage. Even newly constructed homes are vulnerable to foundation resettlement as housing developments loosen dirt and expand roads that cause the street to creep, putting pressure on your driveway, yard, and foundation. If you are experiencing any of the following signs, call the experts at Erickson Foundation Solutions today before the problem worsens:

  • Cracked brick
  • Sticking windows & doors
  • Cracked or bowing walls
  • Sagging floors
  • And more!

Erickson Foundation Solutions offers long-term solutions to waterproof your foundation, fix cracks and support bowing walls. Backed by the Supportworks Network- They use only the strongest industry products to protect your foundation from the inside out, reinforcing your basement against exterior pressures and inward movement.

Keep your home's concrete looking great to preserve curb appeal and value. Get a free foundation or concrete repair estimate in Windham today.

Crawl Space Encapsulation, Dehumidifiers & Waterproofing

Poorly constructed or sealed Crawl spaces leave them and your home vulnerable to moisture problems, mold growth, pest infestations, and poor air quality. Erickson Foundation Solutions offers complete encapsulation and waterproofing services to keep water, spores, and creatures out of your crawl spaces for good. These solutions create safer, dryer crawl spaces, saving you money on HVAC bills and improving your home's air quality.

Crawl Space Solutions in Windham

  • Vapor barriers
  • Dehumidifiers
  • Drainage systems
  • Insulation
  • Vent covers
  • Doors and access wells
  • Support posts
  • And more!

Improve the air quality in your home while keeping your crawl space dry and efficient. Call today to book your free estimate!

Trusted Basement Waterproofing Solutions

Basements that are not properly sealed can cause foundation problems, rotting columns or joists, excessive dampness in your home, and other issues that impact your home's safety and health. Though having water in your basement can be costly, it is preventable. As your local Basement Systems Dealer, you can put your trust in our experts to identify the issue and come up with a long-term solution to remove the water, then dry and filter the air using proven basement waterproofing products.

Basement Solutions

  • Basement Crack Repair
  • Egress Windows
  • Dehumidifiers
  • Wall Paneling
  • Vapor Barrier
  • Sump Pumps

It's crucial to the health and safety of your home to clean up water in your basement before it causes significant damage. Call the experts at Erickson Foundation Solutions before the next big rain. Click below to fill out a simple online form.

When your home requires home improvement or maintenance services in Windham, trust the experts at Erickson Foundation Solutions to get the job done right the first time.

Case Studies From Windham
The owners of this summer home in Windham, NH were looking for solutions to address the piers supporting their home. Over the years, water had...
Job Stories From Windham, NH
Cracks Growing in Garage Foundation, Windham, NH

A homeowner in Windham, New Hampshire has owned their home for the past three years. After moving in, they noticed a crack in the foundation wall of their garage. Over the last six months, the crack has grown larger, and they feel like they should address the issue before they sell the home in a couple of months.


The homeowner researched companies in the area to repair foundations and found Erickson Foundation Solutions. They called us for a free inspection of their garage foundation, and our Design Specialist Bryan Barnard met with the owners to inspect the foundation and propose a long-term solution. 


During his inspection, we found that the foundation walls were bowing, which was causing the crack to grow larger. After the inspection, Bryan recommended installing eight Geolocks along the back and right of the garage to stabilize the foundation walls. We also suggested installing our Hide-A-Way Covers to conceal the anchors and installing a new garage slab afterward.


Our Installation Team, led by Eric Witham, began by chipping out all of the concrete inside the garage to create a trench for the Geolock Anchors. Once the two trenches were installed, the team drilled holes through the foundation wall so we could extend a rod from the foundation wall through the soil and into the trench. After the rods were driven into the trench, we installed plates on both sides of the rod, Hide-A-Way Covers to the outside, and began tightening them.


Tightening the rods began to pull the walls back in and prevent further bowing. After all of the Geolocks were tightened, we backfilled the trench inside the garage and leveled the dirt inside. Finally, we ordered a delivery of concrete to pour a new garage floor.


The homeowners had to wait for the garage to fully cure before placing all of their belongings back into the garage. However, they were very happy with the results of the project and were now confident in putting their home on the market.

Radon Levels Increasing in Home, Windham, NH

This homeowner in Windham, New Hampshire, has lived in their home for about 6 months. When they moved in the home inspector tested the radon in the home and the levels were around 4.6 pCi/L, now 6 months later the homeowner want to have a radon system installed and they tested the home again and the results came back at 7.7 pCi/L. The homeowners have their grandma stay over at their home up to 4 times a year so they would like to have a radon system installed in their home to lower the radon levels in their home. They called EFS for a free inspection and our Design Specialist Josh recommended and designed a radon mitigation system to be installed into the home. 

Our installation team began by creating an extraction point in the slab in the basement to pull radon-filled air from beneath the home. Next, the team installed a PVC pipe to carry the radon to the exterior of the home where we connect the PVC pipe to a fan. The team installed the fan to the side of the home and connected the PVC pipe to the fan so it can push the radon away from the home.

The homeowner was very pleased with the installation of the radon mitigation system.  

Radon Levels Increasing in Home, Windham, NH - Photo 1
Cracked and Sunken Pool Deck, Windham, NH

A homeowner in Windham, New Hampshire, had a pool deck that was 40 years old and was showing its age. The pool deck had become cracked and sunken since it was installed in the 1980s. The homeowners planned to use this home as their retirement home. They wanted to improve the appearance of the pool deck so they called EFS. Our design specialist Michael B. recommended installing PolyLevel and NexusPro around the pool deck to lift, level, and seal the cracks on the pool deck. 

Our production team first started by drilling small port holes in a grid pattern around the pool deck. The team used the port holes to inject PolyLevel under the pool deck. Short bursts of PolyLevel allowed the team to slowly and precisely lift each slab until they were level. After the team lifted and leveled all of the slabs around the pool, they then moved to use NexusPro to seal the joints and crack repair. The team had to use almost 500 feet of NexusPro to seal all of the joints and cracks on the pool deck.

The team was able to lift, level, and seal the pool deck to improve its appearance. The homeowner no longer has to worry about the pool deck sinking. 

Cracked and Sunken Pool Deck, Windham, NH - Photo 1
Foundation Cracks in a 6 Year Old Home, Windham, NH

This homeowner in Windham, New Hampshire moved into their home 5 years ago. Their home is only 6 years old but they have been noticing some cracks that had concerned them. The homeowner decided to call EFS for a free inspection.

Design Specialist Michael Bradley inspected the home. Michael had taken a deeper look at the cracks in the foundation. Michael found some settlement and a slight bow near the cracks in the foundation walls. Michael recommended having Geolocks installed on the foundation wall to stabilize the settlement issue. 

Crew Lead Ed Nadreau and his team installed Geolocks onto the foundation wall. 

Homeowner Works for Hours in Basement and is Concerned with Radon, Windham, NH

This homeowner in Windham, New Hampshire had recently learned of the harmful effects of radon. The homeowner would work for long periods in the basement and now they are concerned with how long they stay in the basement because of radon. They decided to call EFS for a free inspection. A representative from EFS came to the home before their scheduled appointment and dropped off a radon test. 

Design Specialist Michael LaMalfa inspected the home and then went over the results of the radon test with the homeowners. The radon levels in the home are 4.2 pCi/L which is slightly higher than recommended. Michael recommended installing a radon mitigation system in the home. 

Crew Lead Dillon Kingsbury and his team installed the radon mitigation system into the home and were able to lower the radon levels to a comfortable level. 

Damp Basement, Windham, NH

This homeowner in Windham was experiencing the basement of the home start to smell and feel damp. They decided to call EFS for a free inspection.

Design Specialist Stephen Caron arrived at the home and inspected the basement. Stephen confirmed that the basement had signs that mold might become a factor. Stephen recommended to the homeowner that installing a Sani Dry would help eliminate the moisture in the basement to help prevent mold from growing. 

Back Corner of Garage is Sinking, Windham, NH

This homeowner in Windham, New Hampshire was experiencing sinking in the back corner of their garage. They would like to lift and level that corner to match the rest of the garage. They decided to call EFS for a free inspection. 

Design Specialist Michael Bradley arrived at the home and inspected the garage and confirmed that the corner of the garage is sinking. Michael recommended to the homeowners that PolyLevel can lift the corner of the garage. 

Crew Lead Scott Crandall and his crew arrived at the home and injected PolyLevel into the back corner of the garage and were able to lift that cornerback to level. 

Radon System, Windham, NH

This homeowner in Windham, NH has a finished basement where their daughter and her boyfriend live. Recently they had a radon test performed in their basement and found that the radon levels are between 4-9 pCi/l. When they got these test results back they moved their daughter and her boyfriend into the main living area until the issue is resolved. Design Specialist Michael LaMalfa proposed that the homeowners install a radon mitigation system  Crew Lead Scott Crandall and his team installed the radon system into the home to return the radon levels in the basement to safe levels. After the system was installed the daughter and her boyfriend were able to return to living in the basement with no fear of radon in the air.

Concrete Wall Repair, Windham, NH

The owner of this property on Cobbetts Pond in Windham, New Hampshire knew when he bought the home that eventually the concrete walls of the boathouse would need to be repaired. There were visible, large cracks on the wall which faced the water. There was slight settlement, and the walls in general were shifting more and more each year. He reached out to a number of foundation repair contractors but in the end found only Erickson Foundation Supportworks had the right team and the right solution. And rather than wait for the situation to get worse, the time had come to fix it. 

Our inspection specialist David Cormier viewed the walls and designed a system utilizing 8 GeoLock wall anchors, as well as 6 Helical Piers. Together these anchors and piers would prevent the walls of the foundation from any further movement. The challenge for the production team was having to work in the frigid pond water in the late autumn months. With the right equipment and a 'can do' attitude, the crew worked diligently to install the system.

The concrete walls of this boathouse are now permanently stabilized, and the homeowner can now continue to preserve this small piece of New Hampshire history. 


Concrete Wall Repair, Windham, NH - Photo 1Concrete Wall Repair, Windham, NH - Photo 2Concrete Wall Repair, Windham, NH - Photo 3Concrete Wall Repair, Windham, NH - Photo 4Concrete Wall Repair, Windham, NH - Photo 5

our service area

Erickson Foundation Solutions Service Area