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How Much Does an Interior Basement Drainage System Cost?

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If you are searching for information on an interior basement drainage system, you probably have a need to control water in your basement. (If you’re not sure what a basement drainage system is and how it works, check out the video below.) You may also be wondering how much does one cost? A few factors go into determining the cost, so let’s discuss those.

Play: Video

What determines how much an interior basement drainage system costs?

  1. Linear Footage
    The most important factor in determining the cost of an interior basement drainage system is the linear footage required for installation. The linear footage refers to the length of the drain system that needs to be installed within your basement. The linear footage can vary depending on the size of your basement and the extent of water issues.
  2. Number of Sump Pumps
    The number of sump pumps required can affect the cost of an interior basement drainage system. Generally, a single sump pump is enough for most basements, but there are some larger basements that may require multiple sump pumps.
  3. Slab Thickness and Rebar
    If you have a slab thicker than the normal 3.5 inches of concrete for most basements, it will affect the cost as it will take more labor to dig the trench and more concrete to refill it. Unfortunately, we don’t have X-ray vision to determine the slab thickness prior to digging. If you built your home you may be able to provide us with this information, but otherwise we won’t know the thickness of the concrete until we cut the trench. Also, if there is rebar in the slab, it can slow down and complicate the installation process, increasing the cost of the drainage system.
  4. Battery Backup
    A critical component that homeowners should consider is a battery backup system. We always recommend battery backups for basement and crawl spaces, but the decision ultimately rests with you, the homeowner. If you have a finished basement, having a battery backup provides peace of mind for protection against flooding during storms when you are away. The additional cost for a battery backup system typically ranges around $1,200.

What about exterior basement waterproofing?

An interior basement drainage system directs water once it gets inside your basement. You may be wondering, wouldn’t it be better to stop water coming inside in the first place? Maybe, but be aware that the water doesn’t typically damage the foundation. It’s the hydrostatic pressure that builds up because the water has nowhere to drain that can crack and bow walls.

Exterior waterproofing will prevent water from ever entering your basement, but it’s important to note that exterior drainage systems come with their own set of challenges. The installation process is highly disruptive and often requires removing landscaping, tearing up sidewalks, decks, and porches, and a full dig-out is required to apply a waterproof coating to the entire basement’s exterior walls. The process is quite expensive compared to the interior basement drainage system.

How much does a basement drainage system cost?

The cost of an interior basement drainage system typically ranges from $110 to $120 per linear foot. Sump pumps usually cost between $1,100 and $1,300, and electrical requirements can add another $350 to $500 to the total cost. Considering our recommendation of a battery backup, the cost usually falls within the range of $8,000 to $10,000 for an average job.

Water intrusion in a basement can cause serious issues and if left untreated, will only get worse over time. By redirecting the water through an interior basement drainage system, you take control of where the water flows, you’re basically telling the water where to go, and that means you’re lowering the chances of too much pressure building up and causing damage to your foundation. If you need help with controlling water in your basement in the greater Charlotte area, give us a call or fill out a form to get started with a free consultation.

Schedule a Free Consultation Today

Tired of dealing with a wet basement? HydroHelp911 is your go-to solution for expert basement waterproofing. Contact us to schedule a free consultation or give us a call today at 704-741-9737. Let our experienced team assess your basement’s needs. Don’t let water damage dampen your spirits – take the first step towards a waterproof basement.

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