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    Verified foundation repairs reviews

Find Foundation repair specialists in Merrimack

Avatar for Groundworks

Groundworks

4.85(
74
)
Approved Pro

Groundworks

4.85(
74
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
29 years of experience

Groundworks, previously Rescon Basement Solutions, specializes in helping homeowners with their foundation repair, basement waterproofing, and crawl space encapsulation needs. Our top priority is providing high-quality home repair solutions and personalized service across New Hampshire and Massachusetts. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement.

"Everything went very well. Josh, Dave and Tommy were very professional, efficient, and always willing to answer any questions I had. I can't recommend them highly enough."

Ken C on August 2025

Groundworks, previously Rescon Basement Solutions, specializes in helping homeowners with their foundation repair, basement waterproofing, and crawl space encapsulation needs. Our top priority is providing high-quality home repair solutions and personalized service across New Hampshire and Massachusetts. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement.

"Everything went very well. Josh, Dave and Tommy were very professional, efficient, and always willing to answer any questions I had. I can't recommend them highly enough."

Ken C on August 2025


Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

4.54(
51
)
Approved Pro

Erickson Foundation Solutions

4.54(
51
)
Approved Pro
Customers say: True professional
46 years of experience
Free onsite estimate

Erickson Foundation Solutions specializes in foundation repair and basement waterproofing systems. We have been helping homeowners in our community fix their homes since 1979. With the help of the Supportworks and Basement Systems dealer networks, we have access to the best materials and foundation solutions in the industry to efficiently and effectively solve any problem you might have in your basement. All of our technicians are professionally trained, so you can be sure that you’re receiving high standards of professionalism and courtesy at every turn. Do you have any foundation problems? We can help!

"The company is working with me."

Richard N on April 2025

Erickson Foundation Solutions specializes in foundation repair and basement waterproofing systems. We have been helping homeowners in our community fix their homes since 1979. With the help of the Supportworks and Basement Systems dealer networks, we have access to the best materials and foundation solutions in the industry to efficiently and effectively solve any problem you might have in your basement. All of our technicians are professionally trained, so you can be sure that you’re receiving high standards of professionalism and courtesy at every turn. Do you have any foundation problems? We can help!

"The company is working with me."

Richard N on April 2025


Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

4.56(
9
)
Approved Pro

Erickson Foundation Solutions

4.56(
9
)
Approved Pro
Customers say: True professional
46 years of experience
Free onsite estimate

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."

Chris T on November 2021

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."

Chris T on November 2021


Sonart Construction Corp.

1.50(
2
)
Approved Pro

Sonart Construction Corp.

1.50(
2
)
Approved Pro
12 years of experience
Free onsite estimate

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

"????? If I could give zero stars, I would Hiring this contractor was a nightmare from start to finish. The bathroom they delivered is so poorly done that I feel like I need to redo it entirely. They rely on subpar subcontractors with no professionalism or craftsmanship. ? Overpromise and underdeliver: I had to stay on top of every detail myself, doing the job the contractor was hired to manage. ? Unreliable: Never kept appointments or confirmed schedules. The only time they showed up on time was to collect payment. ? Unsafe practices: At one point, a subcontractor was cutting concrete inside the bathroom with a gas?powered tool, filling my entire home with smoke. I had to intervene to stop it and argue just to get basic protections like tarps in place. ? Poor management: Subcontractors openly complained about not being paid, and I even had to send one home myself because of unacceptable behavior. ? End result: Substandard work that does not reflect the money spent. Save yourself "

Kevork B on December 2025

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

"????? If I could give zero stars, I would Hiring this contractor was a nightmare from start to finish. The bathroom they delivered is so poorly done that I feel like I need to redo it entirely. They rely on subpar subcontractors with no professionalism or craftsmanship. ? Overpromise and underdeliver: I had to stay on top of every detail myself, doing the job the contractor was hired to manage. ? Unreliable: Never kept appointments or confirmed schedules. The only time they showed up on time was to collect payment. ? Unsafe practices: At one point, a subcontractor was cutting concrete inside the bathroom with a gas?powered tool, filling my entire home with smoke. I had to intervene to stop it and argue just to get basic protections like tarps in place. ? Poor management: Subcontractors openly complained about not being paid, and I even had to send one home myself because of unacceptable behavior. ? End result: Substandard work that does not reflect the money spent. Save yourself "

Kevork B on December 2025


Avatar for Sill Work & Structural Repairs

Sill Work & Structural Repairs

5.00(
64
)

Sill Work & Structural Repairs

5.00(
64
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Experienced professional - Over 35 years of professional contract work completed. I specialize in structural repairs including Field Stone Foundation - Sill Replacements, Lally Columns, Footings, Beam Replacements - Antiques Bought - that are being listed to be sold. I am fully licensed and insured. Services do not include crack or foundation repair.

"Rene is the best! We reached out to Rene about structural issues on our old home. He responded promptly and scheduled a visit within a few days. He knew just what to do to address some sagging floors and areas of the house that weren't correctly supported. He did all the work himself (he sometimes has his son work with him). I have no idea how he was able to complete all the work on his own, especially pouring new concrete footings in a very small crawl space! He is a machine!!! He is meticulous in his work and really goes above and beyond. He left our basement cleaner than when he started!!! He’s a super nice man and it was a pleasure having him work on our house."

Mary Ellen B on April 2022

Experienced professional - Over 35 years of professional contract work completed. I specialize in structural repairs including Field Stone Foundation - Sill Replacements, Lally Columns, Footings, Beam Replacements - Antiques Bought - that are being listed to be sold. I am fully licensed and insured. Services do not include crack or foundation repair.

"Rene is the best! We reached out to Rene about structural issues on our old home. He responded promptly and scheduled a visit within a few days. He knew just what to do to address some sagging floors and areas of the house that weren't correctly supported. He did all the work himself (he sometimes has his son work with him). I have no idea how he was able to complete all the work on his own, especially pouring new concrete footings in a very small crawl space! He is a machine!!! He is meticulous in his work and really goes above and beyond. He left our basement cleaner than when he started!!! He’s a super nice man and it was a pleasure having him work on our house."

Mary Ellen B on April 2022


Avatar for Northeast Hardscape & Masonry

Northeast Hardscape & Masonry

4.91(
99
)

Northeast Hardscape & Masonry

4.91(
99
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Northeast Hardscapes and Masonry is a one stop shop for all your masonry and hardscape needs. Justin pays meticulous attention to detail and offers quality, dependable, workmanship. He takes pride in every brick, paver and stone he lays. His focus is bringing your visions to life with quality work and exceptional craftsmanship. We offer free estimates and guarantee all our work.

"run for your life. This guy is completely unprofessional. He pitched it towards my house and now I have major water problems. He forgot to put stairs in. He refuses to fix anything and told me he is done doing business with me. He left the job completely unfinished. do not hire this company, I don’t know how this guy is still in business"

Lisa B on June 2024

Northeast Hardscapes and Masonry is a one stop shop for all your masonry and hardscape needs. Justin pays meticulous attention to detail and offers quality, dependable, workmanship. He takes pride in every brick, paver and stone he lays. His focus is bringing your visions to life with quality work and exceptional craftsmanship. We offer free estimates and guarantee all our work.

"run for your life. This guy is completely unprofessional. He pitched it towards my house and now I have major water problems. He forgot to put stairs in. He refuses to fix anything and told me he is done doing business with me. He left the job completely unfinished. do not hire this company, I don’t know how this guy is still in business"

Lisa B on June 2024


Bulkhead Doors Inc

4.92(
51
)

Bulkhead Doors Inc

4.92(
51
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Family owned, with 7 employees. Experts in Basement Bulkheads. 30 years experience in foundations & Steel bulkhead doors. Traditional "Bilco factory approved" installer for replacements. Custom steel sizes "Built to Fit" your needs.Old wood doors can be built into strong, secure steel for longivity and safety. Specializing in replacement of old, rusted, steel casing stair units & tops. These were commonly installed in the 1960s&70s.No excavation machines,cranes or heavy trucks needed that damage your yard and landscaping. Replaced all in one day! Finish Paint options also available. Custom applications to keep weather out of your Basement. Give us a call today! 508-947-0777

"Bulkhead Doors Inc. provided a reasonable estimate, were able to get to the job a few weeks sooner than expected, and did an overall great job. I would highly recommend."

Charlie D on November 2020

Family owned, with 7 employees. Experts in Basement Bulkheads. 30 years experience in foundations & Steel bulkhead doors. Traditional "Bilco factory approved" installer for replacements. Custom steel sizes "Built to Fit" your needs.Old wood doors can be built into strong, secure steel for longivity and safety. Specializing in replacement of old, rusted, steel casing stair units & tops. These were commonly installed in the 1960s&70s.No excavation machines,cranes or heavy trucks needed that damage your yard and landscaping. Replaced all in one day! Finish Paint options also available. Custom applications to keep weather out of your Basement. Give us a call today! 508-947-0777

"Bulkhead Doors Inc. provided a reasonable estimate, were able to get to the job a few weeks sooner than expected, and did an overall great job. I would highly recommend."

Charlie D on November 2020


"Very quick and professional response to initial inquiries and all follow up communication during the season. Work always done on schedule. Not only thorough in their work but very considerate replacing lawn furniture. First landscape contractor I’ve worked with who went a whole season without breaking something. Their ‘’Quickbook’ invoice system is very convenient and good for my record keeping."

Joseph R on November 2019

We are a growing landscaping company. We specialize in patio's, walkways, and retaining walls. We also offer weekly maintenance lawn care. call for a free estimate today.

"Very quick and professional response to initial inquiries and all follow up communication during the season. Work always done on schedule. Not only thorough in their work but very considerate replacing lawn furniture. First landscape contractor I’ve worked with who went a whole season without breaking something. Their ‘’Quickbook’ invoice system is very convenient and good for my record keeping."

Joseph R on November 2019


Avatar for R and G Contracting

R and G Contracting

4.76(
66
)

R and G Contracting

4.76(
66
)
Customers say: Terrific value
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

3-7 Employees. Cost is determined by the job. no travel charges. license # 205630 Construction supr. # 108080. Call 1-857-472-1941 for a free estimate. Remodeling and Building General Contractor. We are a committed all around service provider in the construction industry. Please call John at 18574721941 for a brief discussion about your next project. Thanks. www.buczoom.com

"John has done a lot of work on our house over the last 12 years. This latest project was the biggest one yet - replacing the wood clapboard siding on most of the house, plus trim, painting, and replacing two storm doors. The house looks great now."

David K on June 2020

3-7 Employees. Cost is determined by the job. no travel charges. license # 205630 Construction supr. # 108080. Call 1-857-472-1941 for a free estimate. Remodeling and Building General Contractor. We are a committed all around service provider in the construction industry. Please call John at 18574721941 for a brief discussion about your next project. Thanks. www.buczoom.com

"John has done a lot of work on our house over the last 12 years. This latest project was the biggest one yet - replacing the wood clapboard siding on most of the house, plus trim, painting, and replacing two storm doors. The house looks great now."

David K on June 2020


Avatar for Real Dry Waterproofing - Holyoke

Real Dry Waterproofing - Holyoke

4.92(
52
)

Real Dry Waterproofing - Holyoke

4.92(
52
)
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Family owned business since 1982. All long term employees, no salesman and an owner are on every job. We do not sub-contract unless it is a area of expertise outside of our field of business. We do offer financing and payment plans.

"Steve and his crew did an outstanding job!"

Kenneth L on July 2021

Family owned business since 1982. All long term employees, no salesman and an owner are on every job. We do not sub-contract unless it is a area of expertise outside of our field of business. We do offer financing and payment plans.

"Steve and his crew did an outstanding job!"

Kenneth L on July 2021

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Foundation Repair questions, answered by experts

Yes, you can fix a block foundation. It’s important to address the issue immediately and have a foundation repair professional understand the severity of the issue and determine the best course of action. If the wall collapses before the foundation is repaired, then you’ll have to reassess your entire foundation.

Efflorescence can damage a concrete slab for two to three years. After that, it resolves on its own once the surrounding salts are gone.

Yes, slab foundations can sink just like any other foundation type. Floating slabs are the most prone to differential settlement and foundation sinking because they sit directly on the surface of the earth. Slab foundations that have footings—including slab-on-grade foundations and monolithic slab foundations—get additional support from soil further down and are less likely to sink over time, especially under larger, heavier structures.

If your foundation repair claim gets denied, the first step is to carefully read over your policy and denial letter so you understand the reason for the denial. Then, gather evidence and documents that can support your case and appeal the denial with your insurance company. If your insurer does not eventually honor your claim, you may want to file a complaint with the insurance department in your state. In some cases, it may make sense to work with an attorney and file a lawsuit.

Foundation repairs cost about $5,000, on average. Typically, prices range from $2,200 to $7,800, depending on the type and extent of repairs needed. Cost factors include foundation type, home size, soil stability, accessibility, and the ultimate cause of the problem and what methods and materials are required to fix it.

The Merrimack, NH homeowners’ guide to foundation repairs

From average costs to expert advice, get all the answers you need to get your job done.

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