Most foundation cracks are not an emergency. Some are. The job is telling which one you have, and that is what the free inspection is for. Crack repair at 603 runs $1,000 to $3,000.
Which cracks should worry you?
Rough guide, and it is a guide, not a diagnosis:
- Thin vertical cracks are the most common thing we see and usually the least alarming. Concrete shrinks as it cures and it has to give somewhere.
- Horizontal cracks are the ones to take seriously. A horizontal crack in a foundation wall can mean the wall is being pushed on from outside.
- Stair-step cracks in block walls follow the mortar joints and can point to movement.
- A crack that is wider at one end than the other suggests something is moving rather than just shrinking.
- Any crack that is actively leaking needs handling regardless of shape, because water gets in and does its own damage.
If you can fit a quarter into it, or it has visibly changed since you first noticed it, call somebody. Us or anyone.
How we fix them
For a non-structural crack that leaks, injection fills the crack through its full depth and seals the path the water was using. For a structural crack, epoxy injection restores the bond across it. Where a wall needs real reinforcement, carbon fiber straps or a power brace do that work, and those are different jobs with their own prices.
What we do not do is smear something on the inside and call it fixed. A surface patch on a leaking crack hides it for a season.
When we tell you not to buy
Sometimes a homeowner is bracing for a full system and what they actually need is one crack filled. When a full system is out of budget, fill the crack and don’t look back. We will tell you when that is the situation, and we would rather do the small job right than talk you into the big one.
The reverse is also true. If you have got water coming in at the floor wall joint all the way around, filling one crack is not going to solve that, and we will say so.
The warranty
Non-structural crack injection carries a 10 year warranty on leakage through the treated area. Structural epoxy injection carries 10 years on the structural bond. Wall stabilization carries 25 years against further inward movement within design tolerances.
Read that first one carefully. Ten years on the crack we treated not leaking is not the same as ten years of a dry basement, because the crack we filled may not be the only way water gets in.
Questions we get
Can I fill it myself from the hardware store?
You can, and for a hairline shrinkage crack that is not leaking it may hold fine. For anything structural or anything wet, a surface product is a temporary measure.
Will it crack again in the same place?
A properly injected crack is not usually the one that comes back. New cracks elsewhere can happen as a house keeps settling.
Do you fix cracks in a slab floor?
We look at them. A floor crack and a wall crack are different problems.
How long does it take?
Most crack repairs are a few hours.
Crack shapes, and what they usually mean
| What the crack looks like | What it usually means | How urgent |
|---|---|---|
| Thin and vertical | Concrete shrinkage as it cured | Usually low. Seal it if it leaks |
| Horizontal across a wall | The wall may be under pressure from outside | Get it looked at |
| Stair-step through block joints | Movement following the mortar | Get it looked at |
| Wider at one end than the other | Something is moving, not just shrinking | Get it looked at |
| Any crack actively leaking | Water has a path in | Handle it regardless of shape |
| Hairline, dry, unchanged for years | Often nothing | Watch it. Note the date |
How the job runs
Somebody looks at the actual crack. Shape, width, whether it is wet, whether it lines up with anything else the house is doing. That is a short visit and it is free, and it is the only honest way to tell a shrinkage crack from something that matters.
You get told which one you have got. If it is the small one, we will say so, and we would rather do the small job right than talk you into a system you do not need yet.
The repair itself is usually a few hours. Injection fills the crack through its full depth rather than skinning over the face of it, which is the difference between a repair and a cosmetic patch that looks fine until the next wet spring.
If the wall needs real reinforcement, that is a different job with its own price and its own timeline, and we will lay that out separately rather than folding it into a crack quote.
Haverhill sits on the tidal Merrimack
Haverhill, Essex County, on the north bank of the Merrimack, and the tidal reach runs up to here. That is the first thing worth knowing about water in this city.
The surficial mapping for the city has been reproduced exactly from the USGS 1:24,000 database, and one result stands out: no fine-grained stratified deposits are mapped at the surface anywhere in the city. What is there is till and coarser stratified material over bedrock, with a shallow-bedrock overlay across part of it.
The USDA NRCS soil survey records a densic layer in the major mapped components, which is the compacted till that water will not readily pass through.
What the city says about its own flooding
Haverhill’s hazard planning documents confirm its combined sewer overflows, its floodplain extent, its Floodplain Overlay District, and specific historical events including August 2023 and May 2006. The Merrimack is gauged here by NOAA at BATM3.
The city’s own soils description and its watershed and tributary record are in the same documents, along with its named hills.
Till, bedrock, and wet basements
Put the pieces together and you get a fairly clear picture of why basements get wet in this city, and it is not usually the river.
Where till or bedrock sits close to the surface, water coming down through the soil hits it and turns sideways. It follows the path of least resistance until something interrupts it. A foundation wall, or the joint where a foundation wall meets a floor, is exactly that kind of interruption. That is why the fix is so often about giving water a better route than the one it found through your wall.
Haverhill is just over the state line from us and we work both sides of that border every week, so this is not a town we visit occasionally.
What none of the above tells us is what is happening at your address. City-scale mapping is a starting point and it is where we start. The free inspection is where we finish.
Till thickness, and the shallow-bedrock ground
The USGS surficial materials map database distinguishes thin till from thick till, and that distinction is doing real work here. Thin till over bedrock gives water very little room before it meets something it cannot pass through. The shallow-bedrock overlay marks where that situation is most pronounced across the city.
Haverhill also carries 2.66 square miles of water, and the surficial units are mapped beneath the Merrimack and the ponds as well as under the dry land, so the percentages describe the substrate rather than just the buildable ground.
The city’s named hills matter for the same reason slope always does. Water that lands on a hill does not stay there, and the houses that deal with it are the ones downhill.
What our customers say
We had water coming into our basement on three sides of the foundation, and a moldy smell that never went away. The initial consultation was great and everything was explained very well. The crew that came to do the job were all very friendly and knowledgeable, and most important cleaned up after! I would recommend them for anyone with basement issues, great job guys!
Jeff Jones, Google review, 5 stars
That is one of more than 240 Google reviews. We would rather you read them than take our word for anything on this page.
Related pages for Haverhill
- Basement waterproofing in Haverhill
- Structural and foundation repair
- Which foundation cracks matter
- Every town we cover
- Who you would actually be dealing with
- Basement waterproofing
- Straight answers to basement questions
Book a free inspection in Haverhill
Somebody comes out, looks at the actual space, and tells you straight what it needs and what it does not. You get a written number for a defined scope. No two hour pitch, because we would rather be at the next house.
If you are looking for a team that isn’t going to treat you like another number, we would be happy to give you an estimate free of charge. We don’t cut corners. We stand behind our work. We care.
Call 603-610-1770 or book your free inspection. We cover Haverhill and the surrounding towns from our shop in East Kingston, New Hampshire.
Common questions about foundation cracks
- What are the best methods for repairing a cracked foundation?
- What are the common warning signs that indicate a foundation problem?
- What are the different types of underpinning?
- What are the pros and cons of a stone foundation?
- What are the reasons and purposes of underpinning service?
- What are the signs of an unstable foundation, and what damage may it cause?
- What can be done to fix a house’s foundation after it is built?
- What can cause a crack between staircase and its wall?
- What causes foundation cracks? Are they always indicative
- What causes horizontal cracks on basement walls?
- What causes vertical foundation cracks?
- What do you mean by honeycomb in concrete?
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