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TRUSTED BY FREDERICK, PA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon25
    Verified house leveling services reviews

Top-Rated House leveling pros in Frederick - Updated Nov 2026

Avatar for Groundworks
Groundworks
4.2(
538
)
Concrete Foundation - RepairConcrete - Injection Leveling - MudjackingConcrete Foundation - Raise+1 more

Serving Frederick, PA and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"Their salesperson, Todd Van D*** was very honest and knowledgeable. He did a very thorough exam of our foundation and gave us an honest answer as to the best way to proceed and alternatives to that primary option. He patiently listened to all our questions and worked with us to come to the best solution for our situation. Looking forward to the work being done and having the peace of mind to know it's completed well. Thank you, Todd! To do the work we had Mike T., Brady W., and Chris S. They all three were very polite and professional. Mike explained everything they were doing and answered all of my questions. They worked really hard installing supports and sistering joists as well as putting down a vapor barrier. Mike stayed in the house and made sure things were going back to level while Chris and Brady made adjustments underneath the house. they cleaned up when they were done, and they cleaned up their workspace so well that you couldn't tell they were even there. We also have peace of mind knowing that we have a service plan with them so that if something goes wrong, AFS will be there for us. Definitely check AFS out for all of your foundation needs. I'm glad we did!!"
Protect Your Crawl Space
Protect Your Crawl Space
Protect Your Crawl Space
Correct Your Smelly Crawl Space
Protect Your Crawl Space

+16

60 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for '58 Foundations
'58 Foundations
3.6(
45
)
Concrete Foundation - Repair

Serving Frederick, PA and surrounding areas

Approved

In business since 1958

Free estimates

Warranties offered

"Were willing to work with budget, scheduling & any concerns I had. Once we agreed on cost, they had a crew out within 2-3 weeks. I had a full perimeter solution completed on a small house within 2-3 days."
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing

+10

Response time2 days
1 neighbors recently requested a quote
Recommended by80%of homeowners
Grady's Painting Plastering/Construction
2.0(
174
)
Concrete Foundation - Repair

Serving Frederick, PA and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"This was a very involved plaster repair and remediation job, in a very old house. Grady is the only person (or company) who was willing to take on the job and drive all the way from Pennsylvania to our home in Northern Virginia. There are very few people who do this kind of work anymore (we really searched) and he is an expert in his field. We needed to work around his schedule, because he is in demand in the tri-state area, so it took awhile to schedule the work to begin... but it was worth it."
Response time11 hrs
Response rate100%
Recommended by57%of homeowners
Avatar for Grays Masonry
Grays Masonry
New to Angi
Concrete - Injection Leveling - Mudjacking - For Business

Serving Frederick, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Gray’s Masonry is a fourth-generation, veteran-owned and operated masonry company built on decades of hands-on experience and pride in craftsmanship. We specialize in brick and stone masonry, chimney repairs and rebuilds, retaining walls, steps, patios, concrete work, and all forms of masonry restoration—from small repairs to full structural rebuilds.\n\nOur approach is simple: honest pricing, clear communication, and work done the right way the first time. With deep roots in traditional masonry and a modern understanding of today’s materials and building standards, we deliver durable, long-lasting results you can trust.\n\nProudly serving homeowners, property managers, and small businesses throughout South Jersey, Philadelphia, and surrounding areas, Gray’s Masonry is committed to quality, reliability, and craftsmanship that stands the test of time. Built on experience. Built to last.

Avatar for Merryfield Construction Group
Merryfield Construction Group
4.5(
125
)
Find a Custom Home Builder

Serving Frederick, PA and surrounding areas

In business since 2003

Free estimates

Warranties offered

"

It went great!!   For the estimate they worked around my schedule.  I knew how I wanted the deck to look but that was it. Lew was great in helping me decide all the details. The work was done in a few days and all the workers were very polite and helpful  with any questions I had along the way. I now have a gorgeous deck from the back of my house with new sliding doors up to my pool that has a locking gate for the safety of my children. They did a fantastic job!!

"
Mullica Hill
Checkerboard View
Master Bath Retreat
Additional Photos
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+1

Recommended by95%of homeowners
Keystone Exterior Solutions
4.9(
52
)
Find a Custom Home Builder

Serving Frederick, PA and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"The exterior of our house looks completely different. When I pull into the driveway I'm now proud to call it my house. Ron was a pleasure to work with and provided me with above and beyond explanations to my answers throughout the entire process. The project was unique and had many layers of difficulty but Ron was able to address all of the areas of concern. High quality materials were used in the project and Ron's quote beat other competitors who used material of sub-par grade. Overall the project took about a week and the crew did a good job considering the scale of work to be done. Communication was excellent considering I would text Ron multiple times a day leading up to/during the project and responses were always quick and informative. Throughout the entire process I never felt 'out of the loop' of what was going on and Ron would either call or text me with any small 'issues' that would arise so that we could both agree on a solution. Overall, top-tier materials and warranty for mid-tier pricing, you can't beat that. If you're looking for a genuine contractor that will look out for your needs and take care of you throughout the entire process then look no further, you won't regret hiring Keystone."
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+32

Recommended by98%of homeowners
Avatar for D. Sheerin General Contractor
D. Sheerin General Contractor
4.8(
19
)
Find a Custom Home Builder

Serving Frederick, PA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Desmond and his team were very professional, prompt, and easy to work with. My husband and I have had numerous workmen in our home over the years and they were by far the best. I came home every night to a house where I could immediately start dinner without having to clean up after workmen. They were very mindful of my 88 year old mother who lives with us, making sure she was not inconvenienced."
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+6

Recommended by100%of homeowners
Avatar for Reichardt Remodeling
Reichardt Remodeling
4.6(
83
)
Find a Custom Home Builder

Serving Frederick, PA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Dan and his son did a great job repairing a damaged plaster wall. The wall looks new! They also removed a wall/window AC unit and installed window, complete with beautiful new trim around the window. They had to remove siding and cut through the exterior wall of the house to enlarge the opening for the new window. The finished job looks beautiful."
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+5

Recommended by97%of homeowners
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House Leveling FAQs, answered by experts

Address drainage issues, avoid heavy loads, and seal cracks to prevent future settling.

Pros often use mudjacking or polyurethane foam injection to level a sunken concrete patio. Both methods lift the slab by filling voids beneath it. After properly compacting the soil beneath it to prevent future settling, the concrete may need to be removed and re-poured for severe sinking.

Polyjacking can be a permanent solution to sunken concrete if you also address the underlying issue—like poor drainage—at the same time. The polyurethane material itself can last as long as or even outlast the concrete you’re lifting it with. Your sunken concrete issue will likely return if you don’t couple polyjacking with proper drainage to prevent future soil movement and sinking.

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.

Concrete leveling is not typically covered by insurance. In some cases where the shifting concrete is caused by a natural disaster or storm, you may be able to file an insurance claim if your policy specifically covers those circumstances. In most cases, though, you’ll pay out-of-pocket for concrete leveling.

The Frederick, PA homeowners’ guide to house leveling services

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