Eastern Waterproofing Co., Inc. provides concrete crack repair for poured foundation walls and slabs in Manchester, CT, and across Hartford County. Owner Jon Piela evaluates every job personally. Our crew then injects polyurethane to stop leaks or epoxy to restore strength, depending on the crack. We are family-owned and have served Connecticut homeowners since 1976.
Poured concrete shrinks as it cures, so thin vertical cracks in basement walls are common, and many never widen. Cracks worth calling about are the ones that change or let water through.
| Crack pattern | What it usually means | Likely repair |
| Thin vertical crack, dry and stable | Shrinkage as the concrete cured | Monitor for changes |
| Vertical or diagonal crack that leaks | A water path through the wall | Polyurethane injection |
| Crack that has weakened the wall but no longer leaks | Lost structural strength | Epoxy injection |
| Horizontal crack | Lateral soil pressure on the wall | Urgent evaluation before any repair |
| Leaking seam between pours | A cold pour joint | Exterior patch or interior channel |
| Crack in a concrete block wall | Hollow block construction | Interior channel or exterior patch |
If water reaches the electrical panel or mechanicals, or you see signs of mold, stop watching and call for established waterproofing services in Manchester.
Much of Manchester and Hartford County sits on clay-heavy soil that holds water instead of draining it. After heavy rain or snowmelt, saturated soil builds hydrostatic pressure against the foundation, and that pressure can last until the ground dries out. That is how a crack that stayed dry for years can start leaking after the grading around the house changes.
Wall cracks are often caused by settling or improper backfilling around the foundation. Seams and cold pours form when a wall is poured in sections or stages, and those joints can let water through under pressure. Honeycombing, caused by improperly mixed concrete, appears as porous areas on the wall.
Every winter, water seeps into existing cracks, freezes, and expands, widening them further. A hairline crack from the 1990s in an older foundation can be a significant entry point for water today.
The two resins do different jobs. We evaluate each crack individually, because the right material depends on the crack's type, whether it is still active, and where it sits in the wall.
| Property | Polyurethane | Epoxy |
| Main job | Stops water | Bonds the two faces into one piece |
| After curing | Stays flexible | Rigid, as strong as concrete |
| Going in | Thin as water, foams and expands | Thicker, cures slowly |
| Best fit | Active leaks, cracks that still move | Structural cracks no longer leaking |
Polyurethane expands many times over before it hardens, so it fills the crack even where water is present. In some circumstances, it can seal a crack that is actively weeping. Because it stays flexible, it suits cracks that still move. It does not restore structural strength.
When a crack has compromised the wall's strength, we use epoxy. It is as strong as concrete and bonds the two sides of the crack. It has two drawbacks: it hardens slowly, so it can leak out the back of the crack if there is a void behind the wall, and its thickness makes it harder to work into a very thin crack.
Jon walks the basement, confirms the wall is poured concrete, and looks for the source of the water or movement. Sealing a crack while the cause remains only moves the problem. If groundwater or poor grading is feeding it, our waterproofing and drainage services correct that first.
If a crack wets the floor every time it storms, call (860) 875-6646 for a free written estimate from the owner, not a commissioned salesperson.
Injection is one of three ways we repair a leaking crack, alongside exterior patching and interior channeling. When injection will not work, we choose one of the other two options as part of our cracked foundation repair services.
Injection works only on poured concrete walls, not concrete block. Block has hollow cores, so resin cannot fill a crack the way it does in solid concrete. For walls and seams that cannot be injected, our wall crack and seam repair either patches the wall from outside after excavation or chisels out the leak from inside and ties a channel into an existing drainage system under the floor.
Leave a crack alone until it has been inspected. A homemade hydraulic cement patch is one of the main reasons a crack cannot be injected later. It makes smaller cracks nearly impossible to locate and prepare for ports.
Jon Piela has more than 30 years of experience diagnosing below-grade water problems, and he handles every estimate personally. There is no commissioned salesperson or franchise fee in between.
Eastern Waterproofing is rated 4.9 stars on Google. All of our work carries a written guarantee, and as a family-owned company in business since 1976, we will still be here if you ever need to use it.
From our base at 199 Adams St, we repair cracked walls and slabs in Manchester, South Windsor, East Hartford, Vernon, and Bolton. Our service area covers Hartford and Tolland counties, plus Middlesex, New London, Windham, New Haven, and Fairfield counties, as well as Hampden County, Massachusetts.
Concrete crack repair is part of our concrete services across central Connecticut. Garage slabs crack too, and our concrete garage floor repair services use the same two resins: epoxy for cracks that need their strength restored, polyurethane for cracks that still move or leak. If a slab has broken into separate sections or lost its base, it needs section repair instead.
Both work, and we do both. As a general rule, we repair a leaking crack from the outside because patching the exterior restores the foundation's surface. Inside repair, including injection, makes sense when excavation is blocked, usually by a window well, a deck, or an addition.
Not always. Water where the wall meets the floor usually points to hydrostatic pressure along the footing, which crack injection does not address. A wall leak can also have a second source, such as a window well or a hatchway that isn't sealing properly. That is why Jon walks the whole basement, not only the crack you called about.
A hairline crack that stays dry and holds its width for years is usually shrinkage and just needs watching. Repair it when it leaks, stains, widens, or runs horizontally. It is also worth repairing before you finish the basement, since drywall can hide a new leak until it has soaked the framing.
It can. Home inspectors look for active cracks, water stains, and efflorescence because they show a basement has had a water problem. Repairing a documented crack removes a specific red flag that inspectors call out and buyers notice.
The price depends on the crack and what the inspection finds, so we don't quote crack repair over the phone. Jon prices the work after seeing it. The written estimate is free and carries no obligation, and financing options are available.
Have the crack looked at before the next storm. Call (860) 875-6646, and Jon will look at the crack, explain whether it needs polyurethane, epoxy, or a different repair, and give you a free written estimate. Eastern Waterproofing Co., Inc. is located at 199 Adams St, Manchester, CT 06042.
