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The Daily Insight

What is window well used for

Author

William Smith

Updated on April 11, 2026

Window wells allow windows to be used by escaping occupants and emergency crews attempting to enter the house; to prevent moisture damage to basement windows that are at or below grade.

Are window wells necessary?

Quick answer: If you have a basement window that is fully or partially below grade, you will need a window well to prevent leaking and help bring in light. If the basement window is in a habitable room, then you will need a window well and window that conforms to IRC Building Code emergency egress requirements.

Do window wells help?

When properly installed and maintained, window wells let much-needed sunlight into basement windows that are below ground level. They also prevent below-grade basement windows from rusting and rotting.

What do you put in a window well?

Why Are Rocks Used In Window Wells? A common method to help with window well drainage is to place several inches of gravel at the bottom. This will allow the water to dissipate into the ground slowly to the weeping tile system, rather than sit in the soil next to the window.

Do window wells have drains?

“Typically window wells have a drain that is connected to the foundation drainage system or drains to daylight somewhere in the yard,” Dennison said. “Over time that drain could become clogged and could possibly need to be cleaned out.”

How long does a window well last?

How long will the window well covers last? WindowWellExperts.com manufactures our “Unbreakable” clear plastic window well covers using special U.V. Formula to protect the covers for up to 15 years in direct sunlight against yellowing, fading, or becoming brittle.

When should window wells be installed?

These are known as window wells, and they are important in almost any sort of basement finishing treatment. Windows allow for a way of “egress” or exiting the building if the stairs are inaccessible. They are also ideal for bringing in light and air when the basement is dark and even damp.

Should you put rocks in window well?

Backfilling is a vital part of most egress window well installations. After digging out the hole to install your well, you fill it with gravel or broken rock chunks to support the window well itself, improve drainage and prevent damaging frost heaves in the winter.

Should window wells have dirt in them?

You should regularly check window wells for debris and clean them out accordingly. Materials such as leaves, dirt, and other scraps from the outside can infest window wells. When these objects enter a window well, they have the potential to dirty the gravel and clog up the drain.

Should window well be attached to foundation?

As long as the window well liner is wide enough to be attached to the foundation wall and not the window itself and high enough to extend above ground level it should not present any problems.

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What do you put at the bottom of a window well?

The bottom of the well should contain loose gravel, which also helps with drainage. This should not be allowed to become too compacted or it will also cause water to collect in the well. You can either replace gravel periodically or remove it and clean it before putting it back in place.

How deep should window well be?

How Deep Does a Window Well Need to Be? A window well should be roughly 8 inches deeper than the window sill and approximately 6 inches wider than the window opening.

Should window wells be sealed?

Over time, the gravel in your window wells can become clogged with dirt, sand and debris. Eventually, the clog will prevent most or all of the water inside to become trapped. … Inevitably, your window’s seal will allow a small amount of water inside, growing more severe every time it rains.

What is the cost of a window well?

Egress Window Wells themselves can range from $200 and up, depending on the material used. Pre-manufactured window wells can range from $200-$1500 and custom retaining wall block installations start at $1500. Egress Well Ladder can range from $50-$200 depending on size and materials.

How much does it cost to install a window well drain?

Costs Can Vary For example, a company installing a window well drain from inside of your home might charge anywhere between $750 and $2,000 per drain and $5 per linear foot of piping. That’s not including any other waterproofing measures you purchase.

How do you waterproof a window well?

Basement window wells can be waterproofed. By ensuring proper drainage, replacing your gravel, adding covers, and caulking you’ll be well on your way to keeping water out of your basement. Mold often begins in the basement and works its way upward, taking over other parts of your house.

Can you extend a window well?

Vertical Extension When your window is higher than the lip of your window well, a custom window well cover can be made where the main support along the building crosses in front of the window. … Generally we would not recommend an extension if the window extends more than 12 inches above the top lip of the window well.

How do I keep weeds from growing in my window well?

Cover the soil inside the window well with landscaping fabric, holding it in place with fabric spikes. Lay the fabric so that it rests directly against the soil. The fabric makes the soil inside the window well more stable, prevents the soil from clogging the drain system and blocks weeds from growing.

Can you build over a window well?

Short answer Yes, you can build a deck over a basement window. Depending on the height and size of the deck, it will impact your basement. A deck over a window will shade the window, limiting basement sunlight.

Can you put mulch in window wells?

Surrounding Your Window Wells Many people choose to surround their wells with grass, but because a properly covered well will keep debris away from your basement window, mulch, gravel, and rocks are all viable choices.

Can you put pea gravel in window wells?

Use pea gravel or ¾ inch or smaller free-draining rock, around the well stopping approximately 1 foot down from the top of the window well. Backfilling by hand, start at the farthest area from the foundation, evenly distributing the stone as you fill.

How do you stop window wells from rusting?

  1. Assess Your Drainage System. …
  2. Install Drains in Your Window Well. …
  3. Remove Rust or Corrosion from the Window Well. …
  4. Decide if the Windows Need to Be Replaced. …
  5. Install a Window Well Cover. …
  6. Consider Installing Vinyl Window Wells.

Are window wells expensive?

The Cost Of Window Well Installation Depending on your needs and choices, a good window well installation can run around $500 – $1000, give or take. This will cover the materials used, the need for regrading the project (should this be necessary), and the connection of the well to your foundation’s drainage system.

How do you grade a window well?

Also, look at the grading around the home. Experts say the land should be sloped away from the windows at a pitch of about 1 vertical inch per linear foot. Hard surfaces such as concrete should slope away 1/4 inch per foot.

How do you measure a window well?

Measure the Window Well for a Cover Measure the width of the window well at both the front and back, where it touches the house. Note the widest width. Then measure from the side of the house to the outside edge of the window well in at least two places. Note the shape of the window well.