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TRUSTED BY WINDHAM, ME HOMEOWNERS

  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon35
    Verified foundation repairs reviews

Top-Rated Foundation repair specialists in Windham - Updated Nov 2026

Avatar for A.G. Construction, LLC
A.G. Construction, LLC
4.8(
6
)
Foundation Drainage - Install or Replace

Serving Windham, ME and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

"Andrew and his crew did an amazing job building this garage. Even though he ran into some issues with the supplier of products he went above and beyond to make sure we were kept informed. Additionally, he also replaced (and improved) an existing garage door in the lower level of our home. He also repaired some siding on our house. They even put our two garage door openers in. Overall, we were more than please with his work and his crew."
Jefferson Deck Rebuild
Jefferson Deck Rebuild
Jefferson Deck Rebuild
Camp on post
Camp on post

+27

Response time2 days
Recommended by100%of homeowners
Avatar for The Eagles LLC
The Eagles LLC
New to Angi
Concrete Foundation - RaiseConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Windham, ME and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

The Eagles are specialized in Masonry and Waterproofing. The Eagles Focus on New Buildings, Repairs, Designs, Extensions, demolitions, Etc. We Provide work related to bricks, chimneys, retaining walls, veneer stone, blue stone, granite stone, pavers, Asphalt driveways, concrete slab, basement foundations, patio, decking, fencing, cinder block walls and snow removal. We also provide free estimates for any project around Massachusetts and New Hampshire. Please give us a call or mail at any time to provide an appointment or meeting to your location to provide an instant estimate or for building any designs. \n

Chimney Completely Finished
Chimney Repointing
Stairs Restoration
Stairs Restoration
Stairs Restoration

+67

6 neighbors recently requested a quote
Avatar for octagon-restoration
octagon-restoration
4.7(
96
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Windham, ME and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I called Octagon the day after we had an upstairs water leak. The next day, Octagan had scheduled a technician to assess the damage and set up the mitigation solutions to dry out the damage before mold could set in. Everyone from Octagon was friendly, professional and very responsive. If you need a fast, reliable and effective response, you will find it with Octagon!"
Water extraction.
Octagon vehicles
Drying structure damaged by water.
MOLD REMEDIATION
Dirty air duct.

+2

Response time6 hrs
Response rate100%
Recommended by90%of homeowners
DryLock Systems
3.8(
68
)
Concrete Foundation - RepairFoundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Windham, ME and surrounding areas

In business since 1985

Free estimates

Warranties offered

"Rob and Jacob did an amazing job repairing our sump pump setup and repairing leaks in our basement. They are very professional and helpful, worked cleanly and explained everything that they were doing. We recommend them highly."
Response time2 days
Recommended by97%of homeowners
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Foundation Repair FAQs, answered by experts

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

Regularly inspecting your foundation—at least the visible sections—for signs of foundation issues like moisture and pest infestation is a good way to identify slab leaks early, as is keeping an eye and ear out for water damage to indoor building materials, above-average water bills, sounds of running water when no fixtures or appliances are on, and indoor humidity that causes the temperatures to feel more extreme. If you do find any issues, contact a plumber right away to check it out for you.

Always hire a foundation repair contractor the moment you suspect your house doesn't have a good foundation. The longer you wait to address foundation issues, the more likely they can lead to bowing floors, cracks in walls and ceilings, sticking doors and windows, chimney and roof problems, and more. Foundation problems can also let moisture into your home, leading to water damage, mold, and mildew problems.

Crumbling concrete steps will affect your ability to drill into the material and affix a sturdy railing. If the damage is primarily cosmetic, you might be able to DIY the repair with a patch kit. If the concrete is badly crumbling, hire a professional who specializes in pouring concrete. The average concrete step repair cost is $500 from a professional, but the extent of the damage will determine your actual cost. The professional may recommend a replacement if the damage is extensive.

Whether or not repairing your foundation is worth it before selling depends on the extent of the damage, the cost of the foundation repair, and your timeline for relocating. If the damage is major or structural in nature, chances are you’ll sell at a higher price if you take care of the problem beforehand. You should consider the cost of the repair first, though, as laying out thousands might not be possible with your budget. Additionally, if you’re in a rush to relocate, you might want to repair before selling so as not to limit your buyer pool.

The Windham, ME homeowners’ guide to foundation repairs

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