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Groundworks

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If you hire this pro, you’re covered by a money-back guarantee. Learn more

About
Groundworks is North America’s leading and fastest-growing foundation repair and basement waterproofing company. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect, and improve their home.
Overview

Hired 20 times

Serves South Plainfield, NJ

Background checked

100 employees

22 years in business

Business hours

Sun10:00 am - 11:00 pmMon7:00 am - 11:00 pm

Payment methods

This pro accepts payments via Cash, Check, and Credit card.

Social media

Facebook, Instagram, Twitter

Services offered
Existing foundation

Crawl space

Full basement

Slab on grade

Pile and grinder

Property type

Residential

Commercial

Projects and media
Projects and media
Reviews

Customers rated this pro highly for work quality, punctuality, and professionalism.

Exceptional 5.0

51 reviews

5

98%

4

0%

3

2%

2

0%

1

0%

Your trust means everything to us. Learn about our review guidelines.

Read reviews that mention:


pro avatar
Phyllis R.

Aug 6, 2026

•

Hired on Thumbtack

Groudworks Field Inspector Mark Ulassin , a stand-up guy , has a great personality sense of humor, a great additude , was very respectful of my home , very professional , very thorough and knowledgeable. He visited in response to a request I made with thumbtack for a free quote to replace and install a brand new sump pump I already own. This was a very important detail which should not have been overlooked.
There was a thorough exterior and interior inspection upon Mark’s arrival, drawings of his findings were drawn up , solutions were offered and really there was no stone was left unturned. At this , there’re aren’t any issues that need to be urgently addressed . If in the future we do decide to move forward, definitely would want to work with Mark. Thanks for the excellent customer service .
Phyllis

Details: Replace existing sump pump • Submersible pump located inside basin • No, the building is not currently flooded • Residential

Sump Pump Installation or Replacement
pro avatar
Justin G.

Jul 20, 2024

•

From Google

Rich spent 3 and half hours with us to go over all details of issue and how they would fix it. Was extremely helpful, honest and personal. Even crawled into very tight spaces for his size. Highly appreciated
Groundworks's reply
Hello Justin! We're glad you had a great experience and appreciate your review. -Groundworks
pro avatar
Victor K.

Aug 22, 2024

•

From Google

David was very detailed and thorough. He took his time to examine the situation, consult with his back office and come up with a solution. He explained the solution and the payment options. David was very personable and pleasant. Thank you
Groundworks's reply
Hi Victor! We're glad our team was able to show you an awesome experience and appreciate your review. We'll be sure to share with each team member! -Groundworks
pro avatar
Carolyn S.

Jul 18, 2024

•

From Google

David visited our residence and conducted a comprehensive inspection. He demonstrated a friendly demeanor and provided valuable information throughout the process. I highly recommend him!!
Groundworks's reply
Hi Carolyn! We're glad our team was able to show you a great experience. -Groundworks
pro avatar
Howard H.

Aug 16, 2024

•

From Google

Groundworks did a terrific job. James and his team, Jose and Izzy, were so easy to work with. The scope of the job changed and James was able to diagnosis and explained every step along the way. Which made is simple to follow and not only did they solve the problem, the work they did looks great as well. Highly recommend!
Groundworks's reply
Hi Howard! We're glad our team was able to show you an awesome experience and appreciate your review. We'll be sure to share with each team member! -Groundworks
Credentials
Background Check

John Thornton

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