Foundation Repair & Radon Mitigation Contractor in Belknap County, NH

Mark and Marianne of Laconia, NH purchased their home in 2019. About 6 months ago they were worried about clean air to breathe in their basement office. They thought about getting a test done for radon. They got a self-test machine and tested for radon themselves. After seeing that their self-test machine came back with an unhealthy pCi/l range of 4.1- 6.2, they decided to call the experts. A healthy range of pCi/l is under 4.0 pCi/l.

Mark and Marianne got in contact with Erickson Foundation Supportworks to set up a quote and an install of a Radon Mitigation System. Paul Magowan provided an accurate quote and designed a Radon Mitigation System for their particular home. Scott Crandall led the team that installed the Radon Mitigation System into Mark and Marianne's home. 

Mark and Marianne were pleased with how Erickson Foundation Supportworks completed the task timely and cleanly.

This homeowner of 2 months in Gilmanton, New Hampshire had an issue where the foundation under their two-car garage was beginning to crack and starting to become uneven. The homeowners are hoping to fix and flip the house. In the foundation, multiple cracks were greater than one inch and would likely suffer integrity issues in the future if this went unfixed. They want this fixed so that the garage is functional again to park their car inside and hopefully be able to flip the house. 

They called Erickson Foundation Supportworks because they wanted a company that communicates with them, delivers a quality product, and good pricing. After they called Erickson Foundation Supportworks, a Design Specialist, Paul Magowan came out to Gilmanton and looked at the house and inspected the customer's concerns. Paul inspected the garage and the area around and under the garage to get a broad overview of how the Erickson Foundation Supportworks team would fix the problem. He concluded that they would need to install PowerBrace into the basement under the garage to make the foundation stronger, then they would need to set up a second appointment to pour a new concrete floor in the garage and inject and seal all the cracks. Team Lead Scott Crandall was in charge of install for both appointments. He and his team were able to successfully install the PowerBrace into the basement beneath the garage. PowerBrace is a metal rod that is the height of the foundation wall that is secured at both the bottom and the top of the wall to keep the wall from bowing and also keeps the wall secure. During the second appointment, the team installed the new garage floor and sealed all the cracks. 

The homeowners were pleased with the way everything turned out. They are now able to park their car in the garage and also have the ability to now flip the house if they still want to. 

Robert B. of New Hampton, New Hampshire was continually dealing with water in his basement after rainstorms. After one too many rainstorms this summer, he decided to call someone to repair his basement. He called Erickson Foundation Solutions to ask if they could come out and inspect his basement about a possible solution.

Design Specialist Paul Magowan came to the home and inspected the basement for cracks in the part stone part concrete foundation. Paul found some cracks that are letting water into the basement so he recommended sealing the cracks, Poly Wall Restoration, and then a French Drain. 

Crew Lead Nick Melo and his team came to the home and started by sealing all of the cracks on the foundation wall. Then sprayed Poly Wall Restoration on the foundation walls to seal any cracks they cant see. Then finally, installed a French Drain to the perimeter of the basement to help with draining.

This homeowner in Center Barnstead, New Hampshire needed to have their supports looked at in their crawlspace. They had issues with their floors sagging so they were interested in calling Erickson Foundation Supportworks to see what they could do. 

Design specialist Paul Magowan confirmed the supports would need to be replaced, so he recommended they use SmartJacks in their crawlspace. Josh Provost was the Crew Lead on this project. He and his team installed the SmartJacks by digging out a hole under where each support would go and installed each over reinforced, engineered fill. The engineered fill is designed to spread the amount of weight the SmartJack is holding. The solution eliminated the sagging in the floor.

Michael B. of Northfield, New Hampshire had concerns about radon in their basement. They called Erickson Foundation Solutions to see if they could come to perform a radon test in their basement. After a 48-hour CRM test, the result came back at 31 pCi/L. 31 pCi/L is a high number for radon. 

Design Specialist Jason Vachon came to the home after the CRM test and proposed that Michael have a radon mitigation system installed with two extraction points to pull radon-filled air out from beneath the home. 

Crew Lead Branden Edwards and his team came to the home and installed the radon mitigation system with two extractions points into the basement. 

Wanakee is a youth summer camp that has been in operation since the 1960's. Over the years the property and camp program have developed and expanded. In 2017, the camp built a new shower and bath house on the side of a hill on the property. While the building itself was unique and well built, within a few years the foundation it sat on was cracked and severely bowing in due to pressure from the saturated soils on the exterior of the wall. As water flowed down the fill, it smacked directly into the structures foundation wall, threatening to complete push it in and destabilize the entire building. 

Erickson Foundation Solutions identified the problems with the situation, and installed a water drainage system within the soil along the foundation wall. The system diverted all the water around the building, and so the soil would no longer build up pressure and push against the wall with such high force. The other solution was to install 8 GeoLocks along the cracked and bowing wall, to fully stabilize it against further movement. Once these were in place, the production team also installed 8 Push Piers to permanently stabilize and slightly lift the foundation wall that settled.

Lastly, beneath the main beam of the bath house that ran directly down the center within the crawlspace, 3 SmartJack support posts were installed to lift and level the floor system. 

With the structure stabilized, the camp no longer has to worry about the building's foundation failing or putting any of the campers at risk. 

Alan O. of Laconia, New Hampshire had noticed that the walkway at his home was starting to sink. He had been doing repairs all over his home for the past 5 years and didn't want to do this one himself. Alan decided to call Erickson Foundation Solutions for a free inspection. 

Design Specialist John Merna arrived at the home and inspected the whole walkway. John confirmed that there are areas on the walkway that are sinking and uneven. John proposed that EFS come and inject PolyLevel under the concrete to lift and level it. 

Crew Lead Nick Melo and his crew arrived at the home. They lifted and leveled the concrete walkway to the way it was originally supposed to be. 

This homeowner in Gilford, New Hampshire was experiencing cracking in their garage slab. The homeowners plan to sell their home in about 5 years so they are trying to fix and update areas of the home that could help sell the home for a higher price. The homeowners decided to call EFS for a free inspection. 

Design Specialist Paul Magowan arrived at the home and inspected the cracks in the garage. Paul recommended to the homeowners that the best solution for them would be to use PolyLevel to lift the slab up and then seal the cracks with Crack Seal. 

Crew Lead Scott Crandall and his team arrived at the home and injected PolyLevel under the slab to lift and level the garage slab. After the slab was lifted and leveled, they sealed all of the cracks in the slab.

This homeowner in Meredith, New Hampshire was experiencing high radon in their home. They test their home with a charcoal test and the results from the test indicated that the radon levels in the home are 7.6 pCi/L in the basement and 5.5 pCi/L in the main living area. The homeowner decided to call EFS for a free inspection.

Design Specialist Jason Vachon arrived at the home inspected the home and recommended installing a new radon mitigation system and CleanSpace into the basement. 

Crew Lead Branden Edward and his team arrived at the home and installed a new radon mitigation system and Clean Space into the home. 

This homeowner in Laconia, New Hampshire was actively trying to sell their home. They had a potential buyer submit an offer and during the inspection process, the inspector found that there are some issues with the foundation, and the sale fell through. Now the homeowners that were actively selling are trying to repair the foundation issues. They decided to call EFS for a free inspection. 

Design Specialist Michael LaMalfa inspected the basement and found some cracks and water stains on the foundation walls. Michael recommended installing Geolocks, Water Guard, CleanSpace, Super Sump, and SmartJacks into the basement. 

Crew Lead Nick Carelli and his team arrived at the home and installed the Geolocks, Water Guard, CleanSpace, Super Sump, and SmartJacks into the basement. Now the homeowner will be able to pass the home inspection and potentially sell their home. 

This homeowner in Alton Bay, New Hampshire has a system that takes radon out of their water. The homeowners would like to stay in this home forever and are trying to make this home as healthy as possible. They wanted to look into installing a radon mitigation system into their home. They decided to call EFS for a free inspection. 

Design Specialist Jason Vachon dropped off a CRM test that will monitor the levels of radon in a home a day or so. When Jason arrived on the day of the appointment he went to the basement and collected the results from the CRM and found that the results of the test are around 7 pCi/L. Jason recommended installing a radon mitigation system.

Crew Lead Dillon Kingsbury and his team arrived at the home and installed a radon mitigation system. 

This new homeowner recently inherited the family home that she grew up in. When she purchased the home from her dad, he told her that the floors are sagging on the main level. She likes to entertain people so she sometimes has many people in her home. To make sure that the home can withstand the added weight, she decided she wanted someone to come to look at the home. She researched companies that repaired sagging floors and decided to call EFS for a free inspection. 

Design Specialist Michael LaMalfa inspected the home. Michael found that there was a .375"-1.375" dip in the floor. Michael recommended installing SmartJacks in the basement. 

Crew Lead Scott Crandall and his team installed 4 SmartJacks under one of the main beams in the basement. The team was able to reduce the sag in the floor and add the extra support that the homeowner needs to entertain her friends and family. 

This homeowner in Laconia, New Hampshire has been living in her home for just over a year. Her boyfriend and some of his friends have a band that plays in the basement. They have heard about radon and wanted to test their basement to see if the levels in their basement are anything to be concerned about. They purchased a continuous radon monitor to have an idea of the radon levels in their basement. The radon monitor came back with results of 5.2 pCi/L which is above the recommended amount. They decided to call EFS to see if they could have a system installed to lower the radon in their basement to a more comfortable level. 

Design Specialist Michael LaMalfa inspected the basement. He recommended installing a radon mitigation system in the basement to reduce the radon levels. 

Crew Lead Dillon Kingsbury and his team installed a radon mitigation system in the basement. They reduced the radon levels to a comfortable level. 

This homeowner in New Hampton, New Hampshire was experiencing cracks in their basement floor. The goal is to have the basement finished with tile floors for their daughter's apartment. The homeowner decided to call EFS for a free inspection.

Design Specialist Michael LaMalfa inspected the home. During his inspection, Michael was able to identify that the cracks in the basement were caused by the settlement of the foundation. Michael recommended installing Push Piers to the foundation of the home. 

Crew Lead Ed Nadreau and his team installed 4 Push Piers to the back left of the home. 

A Homeowner in Meredith, New Hampshire, uses their home as a boarding house for dogs during the weekdays. The homeowners would like to have a bulkhead installed coming out of the basement. The homeowner had reached out to a couple of companies but only one company responded; Erickson Foundation Solutions. 

A Design Specialist from EFS inspected the home and created a plan to install a bulkhead on a foundation that doesn't have a bulkhead. The design specialist and the homeowner agreed on a location of the bulkhead would be to the left of the front steps. 

An EFS Crew dug to expose the foundation. They then cut a door into the foundation wall. Then poured concrete into forms to create the walkout for the bulkhead doors. Finally, the crew capped off the concrete with the bulkhead doors. 

A homeowner in Laconia, New Hampshire had radon levels around 105 pCi/L which is very high. Our design specialist recommended installing a radon mitigation system with two extraction points. 

Our production crew installed the radon mitigation system in the home with two extraction points. The two extraction points will allow the radon fan to pull out radon-filled air from both sides of the foundation. The radon fan reduced the radon levels to a healthy level. 

A homeowner in Laconia, New Hampshire, had some concerns about their support in the basement. The home was built in the 1850s and has a dirt basement and a stone foundation wall. Our design specialist examined the basement and recommended installing SmartJacks to support the main beam in the basement. 

The team prepped to install the two support posts under the beam in the basement by creating a footing where they could insert the base of the post. Our production team installed 2 XT SmartJacks under the main beam in the dirt basement. 

A homeowner in Tilton, New Hampshire, had a previous contractor come out to their home and try to add additional support under their floors. Their solution fix the problem they were having. After they realized that their problem wasn't fixed, the homeowners reached out to EFS to see if they could propose a better solution to their problem. Our Design Specialist Chris Greenwood inspected the crawlspace beneath the home and recommended installing SmartJacks in their crawlspace to add support to the beams of the home. The previous contractor had tried to use supports that were supported by concrete sonotubes. The sonotubes upon installation sank and the supports slipped. Chris recommended installing 15 SmartJacks into the crawlspace along 3 of the main support beams that hold up the floor. 

Our production team began by removing the supports that were installed by the other contractors. After the old supports were removed the team then began setting up to install our SmartJacks. First, the team created a flat surface that our SJ footings will rest on. Once the team installed each footing and made sure they were leveled and then installed the supports and the top brackets. Once all connected the team attached the top brackets to the main beam above. The team installed 5 SmartJack under 3 different support beams in the crawlspace. Once all of the SmartJacks were installed to the beams the team proceeded to tighten the adjustable top bracket to lift and level the floor above. 

The homeowners were very pleased with the results of the project.

This homeowner in Center Barnstead, NH was concerned about the cracks in their garage concrete floor. The cracks were visible throughout the concrete slab, and even within some of the walls. There were clear signs of settlement in the garage section of this home. 

Beneath the slab, a large void had formed, which meant much of the slab was not supported or stabilized, leaving it at risk of further cracking and settlement. If left unfixed, the problem will only get worse over time. 

The ideal solution for a slab with void concerns like this is PolyLevel. This polymer foam product is injected beneath slabs to stabilize and lift concrete, and is a great alternative to the more costly approach of completely replacing the slab. 

A homeowner in Center Barnstead, New Hampshire, had a crack in their garage that they noticed 5 years ago and since then the crack has gotten larger. The homeowner was concerned with the crack getting bigger so they reached out to EFS. Our Design Specialist Jason inspected the garage and found that the right side of the garage was settling and had caused the garage slab to crack. Jason recommended installing 3 Helical Piers to the right side of the garage, then lifting the slab with PolyLevel, and then sealing the crack using NexusPro. 

Our Installation Team began by exposing the footing of the garage. The team then used a hydraulic drive head to send the Helical Pier beneath the garage until it reached sufficient pressure to hold it up. After the piers were pressurized, the team then fit a bracket to the foundation and secured the Helical Pier into the sleeve, and capped it. After all three of the piers were secured the team then use PolyLevel to lift the sunken side of the slab. After the slab was lifted with PolyLevel the team then used NexusPro to seal the crack in the garage. 

The homeowner was very pleased with the results of the project. 

A homeowner in Alton, New Hampshire, had lived in their home for an entire year. Before they moved into their home it was tested for radon. The levels were around tested 5.5 pCi/L in December 2021. Then in February 2023, the homeowner decided to test the house again to see if anything had changed. The test results came back at 7.1 pCi/L. With the radon levels increasing the homeowner decided to call EFS for a radon appointment. Our Design Specialist Jason recommended installing a Radon Mitigation System in the home's basement to collect radon air from beneath the house and push it out of the home and into the open air. 

Our Installation Team began by creating an extraction point in the basement. The team cut a circular hole in the corner of the basement so we could fit PVC pipe into it. The PVC pipe will carry radon-filled air to the radon fan. The team installed the radon fan on the exterior of the home. The fan will draw the radon from beneath the home and into the PVC pipe and then push it out above the roofline. 

The radon system we installed was able to reduce the radon levels in the home to below 4.0 pCi/L. The homeowners were very pleased with the results of the project. 

A homeowner in Alton, New Hampshire, was the first owner of their home that was built in 1987. A few months ago they had started to feel like their 1st and 2nd floors were settling. They decided to call EFS and get the foundation looked at by some experts. Our Design Specialist Jason inspected the home and recommended installing 7 Helical Piers to stabilize the foundation and chimney and NexusPro to seal any cracks. 

Our team began by exposing the footing of the foundation from the basement. Once the foundation was exposed, the team drove in our Helical Piers until they reached a predetermined pressure by project managers. Once our piers were at the correct pressure the team then inserted our bracket over our pier and then secured the pier to the footing of the foundation. Once capped and secured the team then covered the piers with dirt and repoured the concrete they chipped out. While the concrete was curing the team sealed 20' of cracks with NexusPro. 

The homeowner was very pleased with the results of the project.

A home in Center Barnstead, New Hampshire, had a pre-purchase inspection that revealed some foundation concerns. A buyer worked out a deal with the seller and agreed to buy the home after the foundation was repaired. To repair the foundation of the home, EFS was called and performed an inspection of our own. Our Design Specialist Victor was the one to inspect the home and recommended installing 11 Geolocks to the front and left of the home to stop the walls from continuing to bow inward. 

Our installation team began by marking where each of the 11 Geolocks will be installed in the basement. Then they created a trench 10 feet away from the foundation wall that will hold one end of our Geolocks that will allow us to straighten the foundation wall. To get our Geolock rod to the trench the team drove the rod from the inside of the basement through a small hole we made in the foundation wall. Once we drove all of the rods into the trench we then installed our Geolock Plates onto both ends of the rod and began tightening the nut on the rod to begin straightening the wall. The team will slowly tighten all of the rods until the wall was straightened. After the wall was straight, the team will then backfill the trench. 

The new and old homeowners were very impressed with the installation of the Geolocks. 

A Laconia, New Hampshire homeowner has been living in their home for ten years and has been experiencing periodic water entry into their basement. They are seeking a solution to prevent water from entering their basement so that they can make better use of the space. To address this issue, the homeowner contacted EFS for a free inspection of their basement. Our Design Specialist, Jared Pavluvcik, met with the homeowner and conducted a thorough inspection of the basement. Based on his findings, Jared recommended installing 130' of WaterGuard, a SuperSump, IceGuard, and a SaniDry Sedona to prevent water collection in the basement. 

After the homeowner accepted the recommendation, our Installation team, led by Branden Edwards, began by chipping out a 6-inch wide trench around the basement to install the perimeter drainage and sump pump below the slab. The team then laid the sump in the lowest corner of the basement and installed the perimeter drainage into the trench. The sump was plumbed to the exterior of the home, where it would be carried away by our drainage line. The team then mixed concrete and covered the perimeter drainage and sump pump to secure them in place. After the concrete was cured, the team installed the SaniDry Sedona dehumidifier to manage moisture in the basement. 

The results of the project were satisfactory to the homeowner, who no longer has to worry about water entering their basement. They can now proceed with finishing their basement.

A homeowner in Alton Bay, New Hampshire, had an existing TripleSafe that was installed in their basement before they purchased the home. Since owning the home they hadn't seen water in the basement until this past year. They decided to call EFS for a free inspection of their basement. Our Design Specialist Isaac Hernandez met with the homeowner and recommended adding a strip of WaterGuard into the basement to collect water from along the wall that was allowing water to seep into the basement. 

Our Installation Team led by Branden Edward began by chipping out a 6-inch wide trench stemming from the existing TripleSafe. The trench will extend a total of 13' and will hold our WaterGuard in place to collect water from the basement and guide it to the TripleSafe. After the WaterGuard was installed into the trench and integrated into the TripleSafe the team mixed concrete and poured it on top of the WaterGuard to lock it into place. 

The homeowner was happy with the installation of the WaterGuard installed into their basement.

A resident of Center Harbor, New Hampshire inherited their father's house, only to discover a crack in the foundation wall that was causing water to leak into the basement. The water was pooling on the floor, and as the homeowner planned to sell the property, they wanted to ensure the crack was sealed for the future buyer. Seeking a solution, the homeowner contacted EFS for a free inspection of their basement. Our Design Specialist, Jason Vachon, assessed the basement and recommended an effective solution to prevent water entry. The solution involved installing 24' of WaterGuard, a SuperSump, FlexiSpan, IceGuard, and an Exterior Drainage Line.

Our skilled Installation Team, led by Branden Edwards, began by chipping out concrete on the foundation wall at the back of the house. A 6-inch wide trench was exposed, stretching 24' feet from the basement corner to the foundation crack. The team then installed the FlexiSpan over the foundation crack, followed by the SuperSump and WaterGuard against the foundation wall. This system would collect and pump out any water that entered the basement. The drainage system was integrated into the sump pump and plumbed into the exterior of the house. An IceGuard and Exterior Drainage Line was installed to carry water away from the foundation. After testing the system, the team poured concrete over the WaterGuard and SuperSump to secure them in place.

The homeowner was delighted with the outcome, as the basement was no longer leaking. With the issue resolved, they were able to proceed with the sale of their home.

A homeowner in Northfield, New Hampshire, has lived in their home for the past 15 years. Over the last couple of years, they have noticed the bottom of their lally columns were corroding. Fearful that the columns could fail the homeowners decided to call EFS to have the supports looked at. Our Design Specialist Jason Vachon inspected the lally columns and recommended replacing them with two SmartJacks. 

Our Installation Team led by Nick Carelli began by setting up temporary posts and then removing the corroded lally columns. Once the old lally columns were removed the team then chipped out a small section of concrete so we could place the footings of our SmartJacks. Next, the team measured and cut the SmartJacks to size and installed them on the footing and the floor system. Once secured by using heavy-duty screws, we then adjusted the top bracket to add support to the floor system. After the bracket was tightened, we then mixed up concrete and poured the concrete over the footings to lock them into place. 

The homeowner was pleased with the installation of the two SmartJacks. With the installation of the SmartJacks, the homeowner will no longer have to worry about corrosion or rust on their supports.