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Avatar for Groundworks
Groundworks
4.6(
26
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Andover, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"After meeting with Bob, and being shown and explained the project necessary to take care of our crawl space issue, I was convinced they were the guys for the job, They arrived when they said they would, and finished in the time estimated. A job well done and highly recommended !!!"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
222 neighbors recently requested a quote
Recommended by56%of homeowners
Sonart Construction Corp.
2.3(
7
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Andover, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
Avatar for Green Mountain Basement Solutions LLC
Green Mountain Basement Solutions LLC
4.0(
30
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Andover, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Mike was able to fit me in the same day for an estimate which surprised me because I'm sure a lot of people are needing his services with all the rain lately but he was in the area that day and came by. Although the company is a nation wide chain, its a franchise and a small business. He is an honest Vermonter with Vermont values which I appreciate. He gave me options but didn't try to talk me into something I couldn't afford and is doing the work within two weeks which I was also happy about being a very busy time for this type of thing."
Recommended by75%of homeowners
Avatar for St. John enterprise
St. John enterprise
5.0(
6
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Andover, NH and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"St John Enterprise provided a professional service at an affordable price. Their communication and customer skills are excellent. They showed up on time and worked efficiently to deliver high quality work. The patio and front step have received many compliments, and truly exceeded my expectations. I will definitely hire these guys again any time I need concrete work done!"
Sidewalk
Basement garage duo
Sidewalk/apron
Concrete - Stamped & Decorative Project
Concrete - Stamped & Decorative Project

+73

Recommended by100%of homeowners
Avatar for Arta Foundation Repair
Arta Foundation Repair
4.6(
13
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Andover, NH and surrounding areas

In business since 2019

Free estimates

Warranties offered

"When I first met Stavros, he discovered damage that another company completely missed. His inspection was thorough and he explained the situation so we could easily understand what was happening and what we needed to do to repair it. He and his crew then did a very thorough job repairing our concrete foundation that had cracked and was sinking due to problems with the subsoil, as well as leveling the concrete slab in our basement. He took care not to damage our property, and even maneuvered his equipment under our deck so we didn't have to remove it to complete the repair. He and Athena genuinely care about their customers, and were empathetic and kind throughout what was a difficult experience for us as homeowners. I would not hesitate to recommend Arta to anyone who needs foundation work."
cement block foundation wall
cement block foundation wall
cement block foundation wall
cement block foundation wall
cement block foundation wall

+60

Response time1 day
Response rate91%
Recommended by91%of homeowners
M2 Construction & Masonry
3.9(
8
)
Concrete - Injection Leveling - Mudjacking

Serving Andover, NH and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"Mike did a great job fixing my chimney and replacing some of the bricks. He also waterproofed the whole thing. While he was up there he noticed a crack in the inside liner. He fixed that also. He showed me all the work before and after using a drone. Did a great job and didn’t have to wait long to get it done. He also fixed all the caps on my stone wall that had come loose. Everything looks great. May have a leak in the roof and if so will certainly hire him again."
Repairs
Repairs
Repairs
Repairs
Repairs

+29

Response time1 day
Recommended by75%of homeowners
Avatar for M1 Construction and Masonry
M1 Construction and Masonry
3.8(
4
)
Concrete - Injection Leveling - Mudjacking

Serving Andover, NH and surrounding areas

In business since 1997

Free estimates

"We needed some foundation work and it was holding up another project we wanted to start. I needed someone immediately. M1 C&M came on the same day I posted the project. They showed up the next day with a crew 0f 6 and completed the project that day."
Repairs
Stamped concrete
Stamped concrete
Stamped concrete
Stamped concrete

+13

Response time2 days
Recommended by66%of homeowners
M3 construction and masonry
2.6(
8
)
Concrete - Injection Leveling - Mudjacking

Serving Andover, NH and surrounding areas

In business since 1963

Free estimates

Offers commercial services

"Price seemed a bit high for such a small job, but they could do it the same day. They did come down on the price when I agreed to get it done today. However since then Iâ ve noticed that the mortar in the patched area is nearly flush with the brick face, whereas the other mortar (the whole rest of the wall) is set quite deep in. The patched area really stands out as a patch. They didnâ t match the mortar depth to the rest of the wall. Iâ ve repainted the entire hearth to see if that helps, but itâ s still quite noticeable. Not impressed. Lesson learned."
Walkway
Stamped concrete
Work
Work
Work

+7

Response time2 days
Recommended by42%of homeowners
Showing 1-10 of 15
Concrete Mudjacking questions, answered by experts

Yes, you can mudjack cracked concrete, but the cracks will need to be repaired once the concrete has been leveled. If the concrete is severely cracked in multiple places, replacement may be a better option, but for less severe cracking, mudjacking is a good solution as long as cracks are correctly caulked and sealed.

A good slump height really depends on the project, but there is a use for nearly all slump levels. For example, low slumps are best in projects that require structure, such as curbs and roads. High slumps often require additional reinforcement, but they flow more freely into hard-to-reach spaces.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer polyjacking over mudjacking for more damaged and delicate slabs.

It’s best not to perform mudjacking in the winter unless the ground temperature remains above freezing. Freezing temperatures can cause the slurry to harden too quickly, compromising its strength and longevity. Concrete is also more susceptible to cracking and splitting in cold temperatures, so there’s a higher risk of damaging the slab during the drilling and lifting process in winter.

The Andover, NH homeowners’ guide to concrete mudjacking services

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