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TRUSTED BY GRANTHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon12
    Verified house leveling services reviews

Find House leveling pros in Grantham

Avatar for Northern Basement Systems
Northern Basement Systems
4.6(
21
)
Concrete Foundation - RepairConcrete Foundation - Raise

Serving Grantham, NH and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Paul Swann evaluated our foundation problem and referred us to an engineer who provided a detailed repair plan. Unfortunately, the nature and scope of the proposed repair plan was outside the parameters of what Northern Basement System's themselves could provide. We appreciated their honesty and have been looking for a contractor to take on the project."
Additional Photos
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+25

Response time1 day
7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Groundworks
Groundworks
4.6(
26
)
Concrete Foundation - RaiseConcrete Foundation - RepairConcrete - Injection Leveling - Mudjacking+1 more

Serving Grantham, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Joe,James and Bobby did an excellent job replacing the sump pump And drains. My husband and I were so impressed with their abilities and how hard working they were. I would highly recommend Ground works Manchester to anyone who needs the same work done. Thanks to all the gentlemen for their professionalism and work ethic"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
205 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Greater Northeastern Construction
Greater Northeastern Construction
5.0(
3
)
Find a Custom Home Builder

Serving Grantham, NH and surrounding areas

Approved

In business since 1979

Credit card accepted

Offers commercial services

Greater Northeastern Construction is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 35 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

My jobs
My jobs
My jobs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Sonart Construction Corp.
2.3(
7
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For BusinessConcrete Foundation - Raise+1 more

Serving Grantham, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

C&L Cass Construction
2.8(
2
)
Concrete Foundation - Repair

Serving Grantham, NH and surrounding areas

Approved

Small jobs welcome

Offers commercial services

Customers say: Quick response

"Chris worked with my schedule to get a foundation in and also fixed up my driveways, made great suggestions. He showed up and completed the work exactly as he promised and kept the site tidy all through the project. A pleasure to work with!"
9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Basement Solutions LLC
Basement Solutions LLC
New to Angi
Concrete Foundation - Repair

Serving Grantham, NH and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

We pride our company on reliability, integrity and quality work. We are experts in our trade. We look forward to earning your business! We specialize in concrete crack repair and injections, basement waterproofing, sump pump installations, basement and egress window installations, crawlspace repair, moisture control, foundation repair and so much more.\nCall us today for a free estimate.

Egress
Egress
Egress
Sump Pump
Perimeter System

+4

16 neighbors recently requested a quote
Avatar for Keegan Burnham Construction
Keegan Burnham Construction
5.0(
6
)
Find a Custom Home Builder

Serving Grantham, NH and surrounding areas

In business since 2021

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction!

Response time9 hrs
Response rate97%
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)
Find a Custom Home Builder

Serving Grantham, NH and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
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+2

Recommended by65%of homeowners
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House 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 exact time can vary depending on the size of the project. Because the slurry mixture contains cement, it must fully harden to ensure that added weight from walking, furniture, or vehicles won't shift the concrete slab. A professional contractor can advise you on when the surface is safe to use. For comparison, if you use polyjacking instead, the polyurethane foam can dry in just a few minutes, but it's best to wait about an hour before use.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.

A slurry of cement, sand, and water is injected beneath the concrete to lift and stabilize it.

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 Grantham, NH homeowners’ guide to house leveling services

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