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Cold Cellar Leaks - They're Not Usually Costly To Repair


Discovering leaks in a cold cellar is a common occurence, particularly when there have been heavy rains or snow has melted during the spring thaw. Once the precise point of water entry has been established, unlike basements, it is usually very easy to prevent future leaks at minimal cost.

What To Do When You Discover Water in Your Cold Cellar

The first step in establishing how water has entered the cold cellar is to visually inspect the interior of the cold cellar, this is simple if the cold cellar is unfinished. If the cold cellar is finished, a more sophisticated inspection is required. The purpose of the inspection is to determine if the water is coming through the foundation walls or from the top of the walls. Water that is coming through the walls is classified as a basement leak while water originating from the top of the foundation wall is typically the result of a bona fide cold cellar leak.

You will find a considerable amount of information on the subject of basement leaks throughout our website. Bona fide basement leaks through foundation walls are easy to identify, we have provided many pictures of obvious leaks on our Typical Sources of Basement Leaks page.

If you have determined that the water in your cold cellar is the result of a foundation leak, visit one of the following two pages which are specific to the type of foundation that you have:

Poured Concrete Foundations
Concrete Block / Cinderblock Foundations

If you have determined that the water in your cold cellar is not the result of a basement leak, the associated water ingress is a breach through the building envelope; consequently, the repair approach for this type of situation must be from the exterior. Repairs from the interior will generally trap water, which is undesirable, and are generally ineffective and definitely more costly than addressing the leak from the exterior of your home.

How Water Leaks Into a Cold Cellar

Having ruled out a basement leak through the foundation walls, water entering your cold cellar will usually be attributable to ingress via one or more of the three locations in the following illustration:

How water enters a cold cellar

Water that has entered the cold cellar through a crack in the concrete slab (location 2) requires a very specific and costly repair process which is beyond the scope of this discussion. Most cold cellar leaks are attributable to water ingress at locations 1 and 3. To confirm the precise point of water ingress, using your garden hose, allow water to flow freely on the porch slab while ensuring that the water has an opportunity to enter through both locations; you should expect that water will enter the cold cellar within a few minutes.

How To Prevent Cold Cellar Leaks

Water entering via either of these two locations can be prevented through a simple application of caulking; however, interlocking patio stones installed over top of the concrete slab require removal around the perimeter in order to access location 1 specifically.

The caulking to be used must be suitable for exterior window and door applications. Note that caulking must be applied to a dry and perfectly clean surface and cannot be applied when the temperature is less than 5 degrees celsius. If these conditions cannot be met, you can use plumber's putty, available at hardware stores, as an interim measure.

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