Basement Egress Doors: What You Need to Know Before You Cut Concrete

Knock, Knock… Who’s There? Your Basement’s Safe Exit

What would you do if a fire started in your basement? Is your lower level ready for guests, renters, or even your teenager’s bedroom?

In this post, you’ll learn exactly what a basement egress door is, what the building code requires, the options available, and how much it really costs to install one.

By the end, you’ll know how egress doors work into your basement finishing project.

What Is a Basement Egress Door and Why Does It Matter?

A basement egress door is a code-compliant exit that allows a safe escape from a basement during emergencies like fires. It must open without tools or keys and be large enough for easy access.

Most homes now require a secondary means of emergency egress if the basement includes a bedroom, and often even if it’s used as a living space. The goal is a safe, direct exit—especially when the main stairway is blocked.

If you’re finishing your basement or want to turn it into a guest suite or rental, installing a full-size egress door may also allow for direct access and a separate entrance. This can dramatically boost your home’s functionality and value.

Understanding Code Requirements

Before you bust through your foundation wall, it’s smart to get familiar with your local code requirements. Whether you’re adding an egress window or a full door, most areas follow similar rules based on the International Residential Code.

Here are the minimum specs for a basement egress door or window opening:

• Minimum opening area: 5.7 square feet
• Minimum opening height: 24 inches
• Minimum opening width: 20 inches
• Maximum floor to sill height: 44 inches
• Must be operable from the inside without tools or keys
• If below-grade, window wells must extend at least 36 inches from the wall

For stairwells and landings:

• Minimum stair width: 36 inches
• Risers no taller than 7.75 inches
• Treads must be at least 11 inches deep
• A landing is required at the bottom of the stairs, typically at least 36″ x 36″

The entry door itself must be a minimum of 36 inches wide and 80 inches tall to meet both comfort and code expectations.

What Clients Ask Gehman About Basement Egress Doors

Inevitably, when we bring up the subject of egress requirements with our clients, we are asked, “How can we get out of complying with the code?”

This question comes up in the discussion of budget. Adding an additional means of egress to a basement can easily add $5,000 or more to the cost of the project.

Here is the answer that we give to the issue of complying with the egress requirements of the code.

We try to get our clients to understand that the code is there to address the safety of their family and guests in the case of an emergency, such as a fire. We try to get them to look at the situation from the other side of such an event.

In relation to the scope of the project, the topic of egress in the eyes of a client can be a budget buster. However, as far as egress being “friend or foe,” I can promise you that it will be your friend when it counts the most.

In the end, we recommend that you hold the safety of your family and guests in the highest regard and do not skirt the code requirements when it comes to egress. You will not be sorry.

Contact us today about your basement finishing project.

Your Basement Egress Options

Egress Window With Window Well

This is often the go-to choice if your basement is only partially underground. The egress window pairs with a window well that allows people to climb out, even when masonry walls surround the opening.

Pros:

• Lower cost compared to a full-door installation
• Easier to install in narrow or tight spaces
• Adds natural light to basement rooms
• Provides ventilation to improve air quality
• Faster project timeline in many cases
• Complies with emergency escape requirements
• Can be added to most existing basements

Cons:

• Limited opening size restricts what can be moved in or out
• Not ideal for large furniture or a pool table
• Requires deep window wells and ladders in some cases
• Susceptible to water intrusion if not properly drained
• May need retaining walls or other support around the well
• Less accessible for people with mobility concerns

Full Egress Door With Stairwell

If your basement is completely below grade, you’ll need to dig down and create a walk-up area. That means cutting a rough opening in your foundation wall, installing a lintel, and building a full staircase with an entry door at the bottom.

Pros:

• Provides full-size direct access to the yard or driveway
• Works well for creating a separate entrance for rentals or in-laws
• Makes moving large items like appliances or furniture easier
• Increases property value and usability
• Creates a legal second exit for bedrooms and living spaces
• Easier for emergency services to access the basement if needed

Cons:

• Higher cost due to excavation and structural work
• Longer timeline due to multiple trades involved
• May require a permit and zoning review
• Requires more yard space than a window well
• Needs a well-designed drainage system to avoid water problems
• May require concrete steps and retaining walls

Bilco Doors

Bilco doors are angled steel or aluminum hatches that cover a stairwell outside. They’re often found in older homes or added for storage and utility access.

Pros:

• Rugged, weather-resistant material
• Offers secure exterior access to basement areas
• A popular solution for utility access or storm cellars
• Can meet emergency egress requirements in some configurations
• Easier to install than a full walkout door in some cases
• Takes up less room in the yard compared to a full stairwell

Cons:

• Not always suitable for basement bedrooms
• Can be awkward to navigate, especially in emergencies
• Lower aesthetic appeal compared to modern entry door designs
• May require frequent maintenance due to exposure
• Less natural light compared to egress windows

Step-By-Step Installation Breakdown

Whether you’re installing a window or a door, here’s how the job usually unfolds:

1. Excavation: Dig down to expose the foundation wall, clearing space for stairs or a window well
2. Cutting the wall: Use a concrete saw to create the rough opening; may need to install a lintel to support the load
3. Framing the opening: Add treated wood or steel to frame and stabilize the cut area
4. Drainage setup: Install gravel and a drainpipe at the base to carry water away
5. Installing the door or window: Place and secure the new egress door or window, ensuring it’s level and watertight
6. Building the stairwell or well: Add stairs, a landing, and retaining walls as needed
7. Waterproofing and backfill: Flash the seams, seal with membrane, and backfill the dirt around the new structure

Most contractors complete the work in 4 to 7 days, but more complex walk-outs could stretch to two weeks, depending on the site.

Does your basement need a renovation?

What Does It Cost to Install a Basement Egress Door

Prices vary depending on your foundation, landscape, and whether you’re going with a window or full door.

• Egress window with window well: $2,700–$5,800
• Bilco doors: $500–$3,000
• Full egress door with stairwell: $5,000–$35,000

Other cost considerations include:

• Excavation: $50–$200 per cubic yard
• Permit fees: $50–$300
• Drainage and waterproofing: $500–$1,500
• Window well cover: $200–$600

Hiring the right contractor and avoiding water issues will prevent spending even more on future repairs.

Egress Door or Egress Window: Which One Is Right for You

If your goal is safety and basic code compliance, a simple egress window will often do the job. It’s a smart choice for:

• Basements used as playrooms or offices
• Situations where natural light is a bigger concern than direct access
• Limited site space or tighter budgets
• Homeowners who don’t need a full-size entry

Choose a basement egress door for your basement remodel plan if:

• You’re adding a bedroom or rental suite
• You want a separate entrance
• You need to bring in large items like a couch or pool table
• You want to increase your basement’s resale value and functionality

Don’t Let Your Basement Be a Dead End—Open New Doors With Gehman Design Remodeling of Southeastern Pennsylvania

At Gehman Design Remodeling, we know how to transform your basement into a livable, code-compliant space with safety and style. Whether you’re adding a bedroom, creating a hangout zone, or planning for future rental income, we’ll help you choose the right egress solution and bring it to life.

Ready to give your basement a safe and stunning new exit? Fill out our contact form today, or give us a call to get started.