Top-rated foundation repair specialists.

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    Average homeowner rating
  • Verified reviews icon37
    Verified foundation repairs reviews

Find Foundation repair specialists in Unionville

Avatar for Diggs Building Technologies Corp.

Diggs Building Technologies Corp.

4.92(
39
)
Approved Pro

Diggs Building Technologies Corp.

4.92(
39
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
16 local quotes requested

Owner operated, our company has been serving the Greater Hudson Valley area for over 25 years now, giving us experience to address all of your structural issues. The longer the structural repair is needed, the larger the risk to you and your property. We will address your structural issues to ensure safety. No matter what caused the damage, we have the solution. Professional Engineer on staff.

"Tim and Jake replaced an old support beam and structural wall in our basement with new footings, posts, and steel beams through the length of the house. They handled the project from beginning to end with excellent communication and service. Before they could begin work, the engineer had to draw up plans and Diggs had to get permits approved. Tim worked in lockstep with the engineer and me - he stayed in touch so that I always knew where we were in the process. The work itself took them less than a week, and they left my house standing stronger than ever. If you have a structural issue in your home, these are 1000% the guys to call. Thank you, Tim and Jake!"

Lauren R on September 2025

Owner operated, our company has been serving the Greater Hudson Valley area for over 25 years now, giving us experience to address all of your structural issues. The longer the structural repair is needed, the larger the risk to you and your property. We will address your structural issues to ensure safety. No matter what caused the damage, we have the solution. Professional Engineer on staff.

"Tim and Jake replaced an old support beam and structural wall in our basement with new footings, posts, and steel beams through the length of the house. They handled the project from beginning to end with excellent communication and service. Before they could begin work, the engineer had to draw up plans and Diggs had to get permits approved. Tim worked in lockstep with the engineer and me - he stayed in touch so that I always knew where we were in the process. The work itself took them less than a week, and they left my house standing stronger than ever. If you have a structural issue in your home, these are 1000% the guys to call. Thank you, Tim and Jake!"

Lauren R on September 2025


Grady's Painting Plastering/Construction

4.56(
54
)
Approved Pro

Grady's Painting Plastering/Construction

4.56(
54
)
Approved Pro
Customers say: Quality work
56 years of experience
Free onsite estimate

WE SPECIALIZE IN THE HISTORICAL REPAIR AND RESTORATIONS FOR INTERIOR AND EXTERIOR. WE WORK THE WHOLE STATE OF NEW JERSEY, MARYLAND, WASHINGTON DC, CONNECTICUT, VIRGINA AND MASSACHUSETTS. WE ARE LICENSED AND INSURED IN ALL STATES. WE ARE WILLING TO TRAVEL, ANY JOB SMALL OR LARGE. CONSULTATION AND TRANSPORTATION FEES WILL APPLY. WE DO WINDOW REPAIR. PLASTER REPAIRS. AND ALL MASONRY REPAIRS

"We had cracks in the dyed mortar of the bricks above our garage. Grady took the time to match the color, even with the color having aged 10 years, and you would not even be able to tell that there was new mortar. If your project is anything like ours, you will not be disappointed."

Bradley S on August 2024

WE SPECIALIZE IN THE HISTORICAL REPAIR AND RESTORATIONS FOR INTERIOR AND EXTERIOR. WE WORK THE WHOLE STATE OF NEW JERSEY, MARYLAND, WASHINGTON DC, CONNECTICUT, VIRGINA AND MASSACHUSETTS. WE ARE LICENSED AND INSURED IN ALL STATES. WE ARE WILLING TO TRAVEL, ANY JOB SMALL OR LARGE. CONSULTATION AND TRANSPORTATION FEES WILL APPLY. WE DO WINDOW REPAIR. PLASTER REPAIRS. AND ALL MASONRY REPAIRS

"We had cracks in the dyed mortar of the bricks above our garage. Grady took the time to match the color, even with the color having aged 10 years, and you would not even be able to tell that there was new mortar. If your project is anything like ours, you will not be disappointed."

Bradley S on August 2024


Avatar for Jersey Pro Construction, LLC

Jersey Pro Construction, LLC

4.69(
140
)
Approved Pro

Jersey Pro Construction, LLC

4.69(
140
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
465 local quotes requested

We are locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of masonry,roofing and chimney projects and our services are customizable to each individual projects. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Great job. William was very professional "

Nathalie M on October 2025

We are locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of masonry,roofing and chimney projects and our services are customizable to each individual projects. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Great job. William was very professional "

Nathalie M on October 2025


"They were excellent on all counts-knowledgeable, Available to answer questions, efficient, on time, neat workers , and they did a very good job."

Regina R on September 2024

We are a locally owned and operated company with over 30 employees. Many of our products have warranties. We offer service visits. We will accept credit cards and financing is also offered.

"They were excellent on all counts-knowledgeable, Available to answer questions, efficient, on time, neat workers , and they did a very good job."

Regina R on September 2024


Avatar for The Home Transformer of NY

The Home Transformer of NY

4.08(
6
)
Approved Pro

The Home Transformer of NY

4.08(
6
)
Approved Pro
Customers say: Quick response
32 local quotes requested
9 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in basement remodels but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

""

Phil P on February 2024

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in basement remodels but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

""

Phil P on February 2024


Avatar for The Home Transformer

The Home Transformer

No reviews yet

The Home Transformer

No reviews yet
9 years of experience

The Premier Basement Specialists in the Hudson Valley. We only do Basements, From making them dry if they are wet to ALWAYS dry, all the way to finished space. We even work on Nasty Crawlspaces Too. That's why we say " from Basement to Beautiful." When you want to use that space below your feet that you already purchased give us a call.

The Premier Basement Specialists in the Hudson Valley. We only do Basements, From making them dry if they are wet to ALWAYS dry, all the way to finished space. We even work on Nasty Crawlspaces Too. That's why we say " from Basement to Beautiful." When you want to use that space below your feet that you already purchased give us a call.


Avatar for American Eagle Waterproofing

American Eagle Waterproofing

5.00(
4
)

American Eagle Waterproofing

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in basement waterproofing and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was very professionally done. Installed a very reliable French drain system. They work was completed in a very timely manner and was very neat. Jeffry is one of the most knowledgeable and trustworthy contractors that I have ever engaged. I couldn't recommend them more highly."

Allan M on May 2024

We specialize in basement waterproofing and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was very professionally done. Installed a very reliable French drain system. They work was completed in a very timely manner and was very neat. Jeffry is one of the most knowledgeable and trustworthy contractors that I have ever engaged. I couldn't recommend them more highly."

Allan M on May 2024


Avatar for Hudson Highlands Property Maintenance

Hudson Highlands Property Maintenance

5.00(
9
)

Hudson Highlands Property Maintenance

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We provide comprehensive property maintenance services to residential and commercial clients. At Hudson Highlands Property Maintenance we pride ourselves on being able to provide top tier quality of work, while also maintaining versatility in our service offerings. Our team maintains a diverse group of skills which we are able to leverage to provide superior service in a wide array of categories. Call today for a free quote.

"He was good. He was very professional. He explained everything thoroughly. He was very helpful."

Kevin P on January 2021

We provide comprehensive property maintenance services to residential and commercial clients. At Hudson Highlands Property Maintenance we pride ourselves on being able to provide top tier quality of work, while also maintaining versatility in our service offerings. Our team maintains a diverse group of skills which we are able to leverage to provide superior service in a wide array of categories. Call today for a free quote.

"He was good. He was very professional. He explained everything thoroughly. He was very helpful."

Kevin P on January 2021


Avatar for Alliance Enterprises Masonry & Waterproofing

Alliance Enterprises Masonry & Waterproofing

5.00(
7
)

Alliance Enterprises Masonry & Waterproofing

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Alliance A1 Enterprises, a family owned and operated basement waterproofing business for over 3 decades!! Alliance A1 Enterprises provides waterproofing services in Middlesex County, Union county, and surrounding communities in the tri-state area. Waterproofing is achieved with the interior and exterior application of sealing products, combined with the installation of French drains, sump pumps with battery backups and exterior drainage. These solutions will give you peace of mind whether you're home or traveling! Alliance A1 Enterprises also provides basement and foundation repair, crawl space solutions, exterior drainage and masonry services. With free estimates and a lifetime warranty on our basement waterproofing services, you can rest easy knowing that your project will be handled with the utmost care. Please call us today for more information. In the case of an emergency, there’s no need to panic! We offer same-day service to ensure that your home is safe and secure.

"The work was excellent, it went well and I'm going to use them to finish my basement, They were professional, courteous, and polite."

Karen C on October 2022

Alliance A1 Enterprises, a family owned and operated basement waterproofing business for over 3 decades!! Alliance A1 Enterprises provides waterproofing services in Middlesex County, Union county, and surrounding communities in the tri-state area. Waterproofing is achieved with the interior and exterior application of sealing products, combined with the installation of French drains, sump pumps with battery backups and exterior drainage. These solutions will give you peace of mind whether you're home or traveling! Alliance A1 Enterprises also provides basement and foundation repair, crawl space solutions, exterior drainage and masonry services. With free estimates and a lifetime warranty on our basement waterproofing services, you can rest easy knowing that your project will be handled with the utmost care. Please call us today for more information. In the case of an emergency, there’s no need to panic! We offer same-day service to ensure that your home is safe and secure.

"The work was excellent, it went well and I'm going to use them to finish my basement, They were professional, courteous, and polite."

Karen C on October 2022


Advanced Quality Builders

No reviews yet

Advanced Quality Builders

No reviews yet
39 years of experience

We are a family business that has been in business for over 30 years. We provide the skills and services to bring your ideas to life. We have many satisfied customers, and repeat customers. AQB LLC offers sub-contracting as well.

We are a family business that has been in business for over 30 years. We provide the skills and services to bring your ideas to life. We have many satisfied customers, and repeat customers. AQB LLC offers sub-contracting as well.

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Foundation Repair questions, answered by experts

Most building departments will require that a certified and licensed foundation repair professional or a structural engineer pull permits for foundation repair, so homeowners usually cannot pull them themselves. This helps ensure that an experienced professional completes all structural work on your home. Minor repairs that are technically DIYable often won’t require permits, but it’s still a good idea to hire a professional to carry out foundation repairs.

Barring extreme home foundation problems, most horizontal foundation cracks are fixable using one or more methods. Most of the repair methods require professional expertise to accomplish, and include plate anchors, steel reinforcement, soil anchors, reconstruction, or carbon fiber strip applications. Contacting a professional to diagnose the problem early can minimize repair expenses.

Yes, you can fill cracks in concrete if you’re a somewhat handy homeowner. It’s important to know which concrete patching method to use, as small cracks require different approaches than large ones. It might seem challenging to determine which product to use and the tools necessary for the project, but with a bit of background, homeowners can restore their cracked concrete easily.

Minor slab leaks normally take around three hours to access and fix, provided the leak is in an accessible location. However, a more extensive leak or a leak in a hard-to-reach location can take several days to fix, depending on the resulting damage. You might also want to consider the timeline for the build-back if the leak damages building materials like flooring or cabinets, which can take several weeks, including delivery of the materials.

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

The Unionville, NY homeowners’ guide to foundation repairs

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