How much does an egress window cost in Maryland?
This Old House’s 2026 guide puts egress window installation cost at $2,718 to $5,878, with a national average of $4,216. The Basement Guide says most homeowners pay $2,700 to $5,900. HomeGuide’s average runs higher, at $6,000 to $8,000, and complex projects can pass $10,000.
Part of the spread is what each guide counts. The Basement Guide’s range covers the window, the well, the digging, the foundation cut and the permit. It budgets the inside drywall, trim and paint separately, at $300 to $800.
These are national published ranges, not our price. In Maryland, the job also needs a Miss Utility request before digging, and Anne Arundel County requires a permit. Your number comes from a free estimate at the house. Our page on egress window installation in Odenton shows how the job goes.
Where does the money go on an egress window?
The Basement Guide’s 2026 breakdown prices a typical below-grade egress job line by line. Six lines cover the work itself. The window unit and the digging carry the biggest ranges, at $800 to $2,000 each. The foundation cut and the well come next, and a deep well adds a ladder.
| Part of the job | Published range | What it pays for |
|---|---|---|
| Window unit and frame (casement) | $800 to $2,000 | The egress window itself |
| Window well (plastic or corrugated) | $400 to $1,200 | Holds the dirt back and leaves room to climb out |
| Excavation, drainage and gravel | $800 to $2,000 | The dig and a stone base under the well |
| Concrete or block cutting and lintel | $600 to $1,500 | The new opening and the lintel above it |
| Ladder or steps | $100 to $350 | Required when the well is deeper than 44 inches |
| Waterproofing, flashing and trim | $300 to $600 | Seals out water and trims the edges |
What makes one egress window cost more than another?
Four things move the price: the foundation wall, the depth, the drainage and the window style. Poured concrete costs more to cut than block, and a deep well needs a ladder. A well with poor drainage needs a drain system. Each one can push a basement egress window cost toward the top of the published ranges.
HomeGuide says poured concrete also takes longer to cut than block. The Basement Guide puts the extra cost at $500 to $1,000. Block can come out one unit at a time.
Depth drives the dig, and the guides price it differently. This Old House’s excavation figure, $3,000 to $7,000, includes the labor to install the well. The Basement Guide adds $500 to $1,500 for basements 9 feet or more below grade. It also adds $300 to $1,000 when utilities sit in the dig path.
Drainage is the other big swing. HomeGuide puts a drainage system for the well at $1,000 to $4,000. A well that fills in a hard rain can push water through the window frame into the basement. If that has already happened, our water damage repair page covers drying out and rebuilding the room.
Window prices sit close together. This Old House puts casements, the most common egress type, at $560 on average. Double-hung units average $495, and sliders $507.
The difference shows up in the wall. A double-hung has to be about twice as tall, and a slider about twice as wide, to make the opening. That means a bigger cut in the foundation.
What size rules set the window and the well?
Egress window requirements set the size. Anne Arundel County’s handout calls for at least one egress window in a basement and in every bedroom. It must open to at least 5.7 square feet, at least 20 inches wide and 24 inches high. The sill can sit no more than 44 inches off the floor.
For egress window size, the two minimums alone are not enough. An opening of exactly 20 by 24 inches gives about 3.3 square feet, well short of 5.7. One side has to grow. At 24 inches wide, the opening needs about 34 inches of clear height.
The egress window well has its own rules. Its floor needs at least 9 square feet and must reach at least 36 inches out from the wall. Any cover or grate over the well must release from inside without a key or tool.
A well deeper than 44 inches needs a permanent ladder or steps. The ladder must be at least 12 inches wide and stand at least 3 inches off the wall. Its rungs can be no more than 18 inches apart.
What permits and digging rules apply in Anne Arundel County?
Anne Arundel County lists a finished basement as permit-required work. When window wells or areaways are created for it, the county also requires a site plan. Digging adds a Maryland rule. Miss Utility has to be contacted at least 3 full business days before excavation, and no more than 12.
A renovation inside the home’s existing footprint is also on the county’s permit-required list. Basement waterproofing, such as drains or a sump pump, has its own permit type.
HomeGuide’s national range for permits is $200 to $500 or more, depending on the jurisdiction. The job needs a permit either way, and your free estimate covers it. Our guide on how Maryland licenses contractors explains who needs a state license for home improvement work.
Is a basement window swap cheaper than a new egress opening?
Yes, by a wide margin. Homewyse’s May 2026 calculator starts the cost to install a basement window at $448 to $673 per window. Its estimate assumes setting the unit in a rough opening that is already there. An egress job adds the digging, the foundation cut, the well and the drain.
The catch is size. If the hole in the wall is smaller than the code size, no new window in it can pass. The same goes for a sill more than 44 inches off the floor. On an egress job, the old window comes out and the opening grows to fit the code-size one.
What does one egress window job add up to?
This is published-range math, not a quote. Take one egress window for a new basement bedroom, with a well deeper than 44 inches. All six rows in the table above add up to $3,000 to $7,650. HomeGuide says the work itself takes 2 to 3 days on average.
Two more costs sit outside the table. The Basement Guide budgets $300 to $800 for the inside drywall, trim and paint. That brings the math to $3,300 to $8,450. The permit comes on top, at $200 to $500 or more on HomeGuide’s national range.
The Basement Guide says most homeowners pay $2,700 to $5,900 in total. Stacking the high end of every row gives the worst case, so most real totals land lower.
Those 2 to 3 days cover digging, cutting the wall, framing the opening and setting the window and well. The inside finish uses the same skills as our drywall repair and interior painting work.
What should you do next?
Start with how the finished basement room will be used. A bedroom down there needs its egress window, and the size rules above set the cut. Call (877) 349-4632 or book a free estimate, and we will price the whole job at the house.