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Radon Mitigation
Radon Testing
Radon Detection
Radon Abatement
Radon Mitigation System

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 Londonderry
Crack Seal Repairs, Londonderry, NH

Crack Seal Repairs, Londonderry, NH

Before After
Crack Seal Repairs, Londonderry, NH Crack Seal Repairs, Londonderry, NH

This homeowner in Londonderry, NH had a number of cracks in his foundation which were leaking water and causing damage. Erickson Foundation Supportworks permanently sealed them with polyurethane crack injection and an epoxy top coat.

Crack Seal Repair Londonderry, NH

Crack Seal Repair Londonderry, NH

Before After
Crack Seal Repair Londonderry, NH Crack Seal Repair Londonderry, NH

A homeowner in Londonderry, NH had a crack in their foundation that needed to be sealed because of a leak. Paul Magowan looked at the affected area that was leaking and came up with a plan of repairing the leak. Scott Crandall repaired the leaking area by injecting polyurethane into the crack to seal the inside and then an epoxy coating is placed over the affected area for a permanent fix. The first picture shows the area with the crack and leak. The second picture shows Scott's work of using polyurethane and epoxy to permanently seal the leak. 

Radon Mitigation System, Londonderry, NH

Radon Mitigation System, Londonderry, NH

Before After
Radon Mitigation System, Londonderry, NH Radon Mitigation System, Londonderry, NH

This homeowner located in Londonderry, New Hampshire tested their home for radon. The reading they got from the test came back at 3.9 pCi/l. The homeowner wanted to lower this number as much as they can. Design Specialist Paul Magowan came to the home to talk to the homeowners about their options. They settled on installing a radon mitigation system into the home to lower the radon levels. Scott Crandall and his team installed the radon mitigation system into the home and lowered the radon levels to a comfortable level.

Trusted Radon Mitigation & Dry Basement Pros serving Londonderry, NH

Excellent job from start to finish. Very happy with the results and the use of a new technology to fix...
Happy Customers Surrounding Londonderry, NH
Work Requests

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Erickson Foundation Supportworks has been the trusted, local professionals to call in Londonderry, NH, for foundation repairs, concrete repair, and radon mitigation. Our in-house team of expert engineers knows how to properly determine and repair the structural issues you are going through. We provide a 25-year written warranty for all of our foundation products. With the professionals at Erickson Foundation Supportworks, you can feel safe knowing that your repairs are in good hands.

Case Studies From Londonderry
This home in Londonderry, NH had an addition added 10 years ago to the rear of the garage, which became a workshop area, as well as a full master...
The homeowner had bought this property in September 2016, and wished to transform the pool shed house in the back into an entertainment space. Before...
Work Requests From Londonderry, NH
Vicinity of Adams Rd in Londonderry
My 4 step precast concrete steps need to be leveled
Vicinity of S Parrish Dr in Londonderry
Large crack in basement wall. I have pictures.
Vicinity of Rockingham Rd in Londonderry
Radon air & water test results show high levels. I'm obtaining quotations for mitigation systems.
Vicinity of Ross Dr in Londonderry
Metal building need 12 piles for frost protection or tie down
Vicinity of Bartley Hill Rd in Londonderry
Cracked section of the garage, tried to have it repaired by someone else and it opened up again.
Vicinity of HIGH RANGE RD. in Londonderry
Vicinity of Edward Circle in Londonderry
We built our home 2 1/2 years ago and we were told there's a possibility of radon. We have yet to have it tested. We would like to have a test done to measure levels if radon(if any)
Vicinity of Victoria Drive in Londonderry
We have a wooden retaining wall that got pushed back and a piece of wood pulled out by someone that was mowing our lawn. Would like an estimate to repair it please. thanks!
Vicinity of Nashua Rd, in Londonderry
Hi, I found you while searching Google for "concrete floor repair near me" from Londonderry. I recently leased a double unit in the Crossroads Mall in Londonderry. I am in the process of ripping up the carpet and found some sections that need leveling repairs because the top half inch of concrete is smashed. I _think_, so far, that the required repairs are fairly minor and will just involve leveling compound, but it's not something I want to do myself. If this is something you do, would you be able to send someone over to take a look and provide a quote for repairs? Or, if the project is too small, would you be able to provide a referral? Regards, --Erika Stokes
Vicinity of White Plains Ave in Londonderry
Walkway uneven and old. Needs to be leveled.
Vicinity of Alexander Rd in Londonderry
We would like to have some foundation cracks looked at as well as cracks in the chimney and the cracks in the drywall around it. Thank you.
Vicinity of King Arthur Drive in Londonderry
We have a cracked pool deck that needs repair
Vicinity of High Range Rd in Londonderry
I think I have to add a lally column to support a damaged support beam
Vicinity of Mammoth Road in Londonderry
I have a bulkhead that is part cement blocks and fieldstone and the stones on the bottom are falling down causing a problem to open the inside door.
Vicinity of Rolling Ridge Rd in Londonderry
There is a crack in the foundation at the back corner of the garage that causes water issues when it rains. I also get water in the basement but am not sure if it is from the same place.
Vicinity of High Range Road in Londonderry
Hi Matt, My wife and I just had a home inspection done on a house we're purchasing in Londonderry. The radon was somewhat high (3.2) and we'd like to know what the cost will be to have some mitigation done. The basement is about 75% finished which leaves two rooms (on opposite corners of the basement) unfinished. The house is a 1999 colonial with a walk-out basement in the rear and a 43x26 foorprint. I can send a floor plan of the basement if needed. If you could give me a rough estimate on the price and an idea of how effective at radon reduction that design will be, if would be greatly appreciated. Thanks, Evan

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