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Avatar for Groundworks
Groundworks
4.6(
26
)

Serving Bow, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Everything completed as rescheduled after a weather delay. The crews arrived on time, did the project (2 foundation Cracks, and cleaned up"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
195 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Erickson Foundation Solutions
Erickson Foundation Solutions
4.6(
10
)

Serving Bow, NH and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"I got great service from Erickson. Nate Erickson was very responsive and spent a lot of time with us answering all of our questions. Although we did not decide to go with Erickson for our work, I would highly recommend them for their knowledge and customer service."
View of the cracked and bowing field stone foundation wall.
PowerBrace wall supports are installed, and the new steel reinforced concrete wall is formed around them to fully stabilize the bowing foundation wall.
The auxiliary wall is anchored to the floor below and joists above and stabilized with PowerBrace wall supports.
Additional Photos
Additional Photos

+54

Response time2 days
Response rate92%
7 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)

Serving Bow, 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 Sam's Masonry
Sam's Masonry
5.0(
43
)

Serving Bow, NH and surrounding areas

In business since 1986

Free estimates

Credit card accepted

"Sam was a pleasure to work with. He was friendly, prompt, and courteous. He even remembered that, if at all possible, to squeeze me in so that I would be able to complete a new garage door installation. Very much appreciated!!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+100

Recommended by100%of homeowners
Avatar for St. John enterprise
St. John enterprise
5.0(
6
)

Serving Bow, 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
)

Serving Bow, NH and surrounding areas

In business since 2019

Free estimates

Warranties offered

"Stavros and his team were excellent professionals. They scheduled an inspection of a crack in a concrete retaining wall, evaluated my foundation, and were able to schedule the repair within the same week! I appreciated that they both kept me well informed of the process, took pictures of their work, and gave me recommendations for a longer term solution. They were very respectful of my property (I noticed they were even careful not to track dirt into my house and flattened the earth where they had to dig to make the repair). They were also very prompt, worked hard, and made sure that everything was a great experience."
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
Avatar for Nelson Sealcoating & Linestriping.
Nelson Sealcoating & Linestriping.
5.0(
5
)

Serving Bow, NH and surrounding areas

Free estimates

Emergency services offered

"Overall we are very happy with the workmanship that was preform. In the past we have had our driveway resealed and both times it required two coats. Not this time, it required only one coat, you can tell after a few days of it setting up if it's going to need additional coating. My neighbor inquired as to who sealcoated the driveway I think he was kind of impressed himself he wanted the phone number so I gave him the phone number I haven't checked back with him yet to see if he called but he might be getting his done. We will definitely recall when we need it sealcoated again."
Driveways - Asphalt Project (seal coat )
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Recommended by100%of homeowners
Avatar for Bottom Line Basements
Bottom Line Basements
3.6(
49
)

Serving Bow, NH and surrounding areas

Free estimates

Emergency services offered

"While he answered my questions he indicated he would get me an estimate but I have not heard from him since.  When he was here, he was very courteous and was on-time for the appointment."
Additional Photos
Recommended by88%of homeowners
Showing 1-10 of 33
Concrete Leveling questions, answered by experts

Mudjacking typically takes 24 to 72 hours (one to three days) to dry and cure completely before you can resume normal use. The total drying time can vary depending on the size of the project. Because the slurry mixture contains cement, it needs to harden fully to prevent the concrete slab from shifting under added weight. You should avoid walking on the concrete or placing heavy items like furniture or vehicles on the surface until it has fully set. Your concrete contractor can provide a precise timeline. As a point of comparison, if you opt for polyjacking, the polyurethane foam can dry in minutes, but it's recommended to wait about an hour before use.

The average cost for mudjacking is around $1,200, though prices can range from $300 to $3,400. On a per-square-foot basis, you can expect to pay between $3 and $8, with an average of about $5 per square foot. The final cost depends on several factors, including the square footage of the concrete, the type of slab, its accessibility, whether it is load-bearing, and the type of material used to lift it. Generally, lifting a driveway, small patio, or sidewalk is less expensive than lifting a slab foundation or garage floor.

Polyjacking and mudjacking can both be effective solutions for sinking concrete, but they have key differences. Polyjacking, which uses expanding polyurethane foam, is often considered a better option because the foam is significantly lighter than the cementitious material used for mudjacking. This reduced weight puts less pressure on the underlying soil and lowers the risk of future sinking. Polyjacking is suitable for any sinking concrete slab, while mudjacking is typically only recommended for non-structural concrete, such as sidewalks, patios, pool decks, and driveways. The primary drawback of polyjacking is its cost, which can be up to four times higher than mudjacking—as much as $25 per square foot compared to a maximum of about $6 per square foot for mudjacking.

Most projects take 1-3 hours, with immediate usability after completion.

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.

The Bow, NH homeowners’ guide to concrete leveling services

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