Some methods are more expensive, but they may also be more effective. Exterior waterproofing is most commonly done when the home is built. This is because once the foundation has been backfilled, it is difficult, expensive, and sometimes dangerous to access. Some excavation is required to waterproof the exterior.
This may be a little or a lot, and multiple types of waterproofing are often undertaken at once to maximize the efforts. The cost varies depending on if you are waterproofing an existing home or one under construction. You may wish to combine several techniques to make your waterproofing more successful.
This is the lowest-cost method of protecting your basement. The paint is put directly onto the concrete. The concrete must be clean, bare, and not have been painted in the past.
It cannot have any efflorescence on it - the white mineral deposits on concrete that have become damp. Waterproof paint is not as effective as sealing, but it can be a good first step to helping your basement stay dry. Sealants are rolled, sprayed, or painted on similarly to paint. Sealants are good if you plan to finish your basement and want some protection beneath your finished walls.
They are also a good choice for basement floors you want to leave bare. They come in several types, and you can combine them. Acrylic is a permanent solution to concrete water seepage. This is a good option if you have weeping concrete because the acrylic fills all pores and prevents moisture from coming through.
It is very durable and flexible so that it moves with the concrete. You cannot apply anything over it, so using acrylic means that the concrete maintains its current appearance. It can also give off strong VOCs while curing. Silicates are flexible sealants that also offer permanent sealing. This is an impregnating sealer rather than topical. You cannot see it once it is applied.
You can also go over it with another material. It is very common to use a silicate sealer first and epoxy later to give the concrete a different appearance. Epoxy is also a surface sealant. It is tough and flexible but difficult and time-consuming to install.
This can be used to give your basement walls or floors a different appearance while preventing water from penetrating. If you have moisture problems, you can use a silicate sealant and epoxy on top. This permanently and effectively ends moisture penetration through the walls or floor. A French drain is sometimes called a weeping tile or drain tile installation.
A small trench is dug around the inside perimeter to install the French drain indoors. This means removing the concrete. Once the surrounding drain and gravel are installed, new concrete is applied to restore your basement floor. Epoxy injects are applied to the cracks through a port.
The epoxy is flexible and does not crack when the basement moves or settles. It is waterproof and durable, so it can last for years without problems. The epoxy cures within about 5 hours after it is applied. This can effectively stop water from entering through cracks in your basement walls or floor.
Sump pumps get the water out of your basement before it collects. The sump pump can be placed in the lowest part of your basement or yard, or it can have a French drain or another drainage system.
When it reaches a certain level, it activates and pumps the water up and out of your home. It is most effective when paired with a drainage system like a French drain. Compare prices from basement waterproofers near me Compare Quotes. Stopping water from infiltrating the outside is much more effective than attempting to waterproof the interior. While most of these techniques are easier and less expensive on new construction, most still work on existing homes. Some must be done together - excavation must take place before sealing of exterior walls or an exterior French drain can be installed.
Gutters are an integral part of keeping your basement and foundation dry. They direct water away from your home and foundation. When they become clogged or fail, water can pool around your basement. When this happens, it is only a matter of time before it comes inside. Functioning gutters are often considered a major part of basement waterproofing. Waterproofing your exterior basement walls can be a good first step to controlling moisture.
Keep in mind the walls must be completely exposed. In some basements, the walls are partially exposed already. In others, they may need to be completely dug up. All of these methods must be backfilled after being applied. This means that excavated dirt must be filled back in to fully protect the basement.
The sodium bentonite in the clay bonds with water molecules on contact. This bond causes the clay to expand, so the walls are still protected even if cracks form later. This is a good choice if you have wet soil in your area. It is considered a temporary solution because it does not last forever.
It is very long-lasting and durable. It can keep water out for years without additional treatments. However, it requires multiple coats to be effective. Each manufacturer may have its own application method, so find a contractor certified in the material you choose.
Sheet membranes stretch around your foundation. They have seams between sheets, which can be a potential source of failure. The walls need extensive preparation for this method if the concrete is not fresh during new construction. Therefore, this method can be time-consuming. Only one layer is needed, which makes the wrapping fast and easy. This may provide some additional moisture protection.
Parging should be combined with another method of waterproofing for the best results. Relying on it alone may not have the desired effect. This system collects water around the perimeter of your basement foundation and directs it away. It can take it to another area in your yard or a sump pump. The sump pump expels the water away from the foundation. There are many types of exterior French drains or drain tile systems.
The type used in basement waterproofing is a footing drain. Excavation must occur before most types of exterior waterproofing for an existing home. French drain 1 installation includes the necessary minor excavation, but excavation must happen first for sealing or waterproofing the walls or backfilling certain areas.
This is a long, labor-intensive process. It must be done slowly and with care to prevent structural problems or collapse. Most costs include backfilling when complete. Not every basement has a window well. For those that do, they are a frequent source of leaks. It is a drain that prevents the well from collecting water. When the water collects in the well, it seeps into the foundation at the base. With a drain in place, the water cannot collect. When you waterproof your basement, you have likely decided to do so after finding a leak.
To waterproof, you must fix the leak first. Leaks can occur in many areas for many reasons. The most common are cracks in the foundation and hydrostatic pressure. A crack can allow groundwater in. Hydrostatic pressure is a different story. This is pressure that builds up underground when the water has nowhere to go. It forces itself up and through your foundation, often causing cracks.
You can repair the cracks, but more leaks happen if you do not address the cause. Fixing this involves a weeping tile or French drain and a sump pump 2. The long-term damage caused by unchecked foundation leaks or dampness in the basement can actually devalue your home, costing you more money down the line.
If you've been battling with wet basement walls for some time, you should call in a contractor for an inspection or an estimate of the basement waterproofing cost.
But if you're hoping the next step is to call insurance and get coverage for the waterproofing system, you'll be in for some disappointment. Waterproofing your basement is not typically covered by home insurance policies. Your insurance is designed to help in the case of unexpected, sudden damage. It doesn't usually cover preventative measures designed to reduce the risk of those events happening.
Unfortunately, those costs fall on the homeowner. If you want to seal your basement from the inside, you can opt for interior basement waterproofing. This is the most effective option if you frequently deal with wet basement walls and want to spend as little money as possible. Exterior waterproofing is more comprehensive and therefore costlier. Interior waterproofing involves laying basement drain tile to create an effective basement drainage system. This drainage tile will be installed in the lowest point of your basement to siphon water away from the foundation, reducing excess moisture in your home.
Interior waterproofing doesn't prevent the water from entering the foundation wall; it just minimizes the damage. Another simple fix for water in the basement is installing a sump pump.
A sump pump sends water away from your home to a storm drain or something similar so that it can't do any damage to the house. These pumps are usually connected to your home's electrical system with a battery backup and will kick on when there's an influx of water. If your downpipes and gutters are improperly installed, damaged or completely missing, this will act to direct all of the water coming from your roof directly into your foundations and through to your basement.
However, if you already have some guttering in place that merely needs to be fixed, the costs might be decreased. If the lawn around your home slopes directly towards the house, this could be leading surface water into your foundations and exacerbating the damp problems. Exterior French drains are an effective method for transporting water away before it reaches your basement. You can also install interior French drains within your basement, however, these generally cost more.
Installing a sump pump is another highly effective fix for damp basements, especially if combined with a subfloor pressure relief system. If you do not have a pressure relief system in your basement, then you will need to get a subfloor pressure relief system along with a sump pump installed.
If you have cracks in your foundation through which water is seeping into your basement, you will do some foundation crack repair. Once you know roughly what it will cost to waterproof a basement, our last tip is to find a contractor that you can trust.
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