*The Angi rating for Foundation Repair companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.
*The HomeAdvisor rating for Foundation Repair companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.
Last update on June 22, 2026
Serving Cornwall, CT and surrounding areas
Approved
In business since 1987
Free estimates
Warranties offered
"Great. Service technician arrived on-time. He performed the work as requested. He informed me of a leak in our downspout. He provided a repair suggestion. He was not pushy at all."
+12
Serving Cornwall, CT and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Leonard and his crew did a magnificent job rebuilding a set of stone steps topped with concrete slab and repairing a field stone foundation wall that water had damaged. He and his crew are both skilled artisans and artists. He is polite, honest, and hard-working, and his services, quite reasonably priced, are worth every penny spent. Hire this man."
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Efraim Perez is the best I've ever hired for crack repair and filling. He responded quickly, arrived exactly on time, stood behind his work, was pleasant and professional. He's great, insured, and solid. I would hire him for other projects too. Highly recommend."
+20
Serving Cornwall, CT and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 2025
Free estimates
Warranties offered
"Aaron Lenker add Corbin Gillichbauer of Groundworks leveled concrete walks around my corner lot in Montoursville Pa. They arrived around noon time and were finished about 5 1/2 hours later. They did their work very professionally. They did an excellent job. I would rate their work 5 of 5 stars."
+16
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Small jobs welcome
"Listened to my needs, offered options. Worked hard, left project area clean when done."
+74
Serving Cornwall, CT and surrounding areas
Approved
In business since 1997
Free estimates
Credit card accepted
"So happy I shopped around before finding American Dry Basement Systems. Not only were they affordable, but were extremely knowledgeable and helped me make an informed decision about the integrity of my home's foundation."
+7
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
Free estimates
Customers say: True professional
"Outstanding! John took our vision and brought it to life in a way that went beyond anything we could have imagined. What could have been a simple repair turned into a complete transformation. The stonework they created not only improved the look of our home but made it stand out in the neighborhood. People keep stopping in front of the house to admire it. The quality, craftsmanship, and attention to detail are second to none."
+17
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"They did a great job installing a new basement hatchway and repairing the foundation. They did an excellent job and delivered their services on time and on budget with no surprises. We were charged exactly what we were quoted. I would highly recommend them."
+37
Serving Cornwall, CT and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"Leo Construction LLC called ahead, showed up on time, located and searched my concerns and fixed on the spot without hesitation. The father and son team were courteous and professional. I am very happy with their work and will hire them again when the need arises. Thanks guys!"
+10
Serving Cornwall, CT and surrounding areas
Approved
In business since 2021
Free estimates
Customers say: True professional
ERVIN H CONSTRUCTION LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!
+31
From average costs to expert advice, get all the answers you need to get your job done.
Foundation repair costs can be tricky when you have a large repair on your hands. This guide walks through costs from small cracks to total replacement.
Worried about pier and beam foundation repair costs? Get a better understanding of how to budget by learning about the repair methods available to you.
Unstable or sinking foundations require comprehensive and expensive solutions. Learn about foundation underpinning costs in this guide to set your budget.
Foundation issues are critical, so knowing how to manage them is too. Use this guide to learn who to call for foundation repair.
Minor foundation issues should be repaired before they become a major problem. When hiring a pro, consider these concrete foundation repair questions.
A house’s history of foundation repairs doesn’t always mean you shouldn’t buy it. Learn what to consider when purchasing a house with an unstable past.
