Egress & Basement Windows in Grand Rapids, MI
Finishing a basement or adding a bedroom down there usually means cutting in an egress window. Here is when Michigan's code requires one, the sizing basics, the permit, the window well and what Grand Rapids, Michigan homeowners typically pay.
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What an egress window is, and who needs one
An egress window, called an emergency escape and rescue opening in the code, is a window big enough and low enough for a person to climb out of and a firefighter to climb into. LARA's Bureau of Construction Codes puts it plainly: the Michigan Residential Code "requires that basements with habitable space and every sleeping room have at least one openable emergency escape window or exterior door." Storage, utility and toilet-only basements don't need one.
Most egress jobs around Grand Rapids are in 1950s to 1970s ranches in Wyoming, Kentwood, Jenison and Walker, where owners finish the basement for a bedroom, an office or a rental-ready space. Grand Rapids Window Pros is a free matching service. Independent local installers and excavation crews reply with quotes; they, not we, pull permits and do the work.
Sizing basics
Michigan adopted the 2021 Michigan Residential Code, effective Aug 29, 2025. The model code figures below are what most building departments start from; confirm the exact Michigan requirements with your building department before you order a window.
| Requirement | Model code figure |
|---|---|
| Net clear opening | At least 5.7 sq ft (5.0 sq ft at a grade-floor opening) |
| Clear opening height | At least 24 in. |
| Clear opening width | At least 20 in. |
| Sill height above floor | No more than 44 in. |
| Window well area | At least 9 sq ft, projecting at least 36 in. from the wall |
| Deep wells | A permanent ladder or steps when the well is more than 44 in. deep |
Net clear opening is the actual hole you can climb through with the sash open, not the rough opening or the glass size. That's why casement windows are popular for egress: the whole sash swings out of the way, so a smaller unit can meet the opening size. A sliding window or a large double-hung can also work if the clear opening measures out.
Permit and code: what to expect
An egress window always requires a permit and must meet Michigan Residential Code sizing. Cutting or enlarging a foundation opening changes the structure, and the City of Grand Rapids says a building permit is required for any project that changes the structure of your house. Outside the city, check with your local building department; in Kentwood, Wyoming, Walker and the townships the process is similar but run locally.
- The permit is usually pulled by a licensed contractor. If you plan to pull the permit yourself, ask the Development Center whether a homeowner permit applies to your situation.
- Expect an inspection of the opening and the finished egress.
- If the basement is being finished, the egress window is often part of a larger building permit.
- Questions go to the Grand Rapids Development Center (616-456-4100) or your local building department.
- Inside a Grand Rapids local historic district, a new opening is an exterior alteration and needs a Certificate of Appropriateness too. See historic window rules.
For a plain-language summary, read egress window requirements in Michigan.
How installers handle an egress job
Locate and plan
Pick a wall away from utilities, check for buried lines (call MISS DIG 811 before digging), and plan around the bedroom layout and the yard.
Dig the well area
Excavate outside down below the new sill, often by hand or with a small machine.
Cut the foundation
Saw-cut poured concrete or rebuild block, add a header where required, and frame the opening.
Set the window and well
Install, flash and seal the window, set the well, tie in drainage and backfill.
Drainage matters in West Michigan. With about 77.6 inches of snow a year at the airport and spring melt, a well that fills with water becomes a leak. Ask how the well drains: to the footing drain, to a gravel base, or both. Many owners add a clear well cover that sheds snow but can still be pushed open from inside; ask the installer which covers meet the escape requirement.
What an egress window costs
| Item | Typical range | Source |
|---|---|---|
| Egress window, window only | $300–$1,500 | Fixr, Jan 2026 |
| Casement window (unit) | $400–$1,200 | Fixr, Jan 2026 |
| Excavation + window well | $3,000–$7,000 | This Old House, 2026 |
| Permit | $100–$500 | This Old House, 2026 |
Digging, cutting and the well usually cost far more than the window itself. Poured walls, block walls, tight side yards, sprinkler lines, landscaping and how deep the basement sits all move the price. Ask each installer to break out the window, excavation, foundation cutting, well, drainage, interior finishing and permit, so the quotes are comparable. The Grand Rapids window replacement cost guide has the full price table.
Pros, cons and when to wait
- Pro: a legal escape route for a basement bedroom, which matters for safety and for how the space can be used and described.
- Pro: far more daylight and fresh air in a finished basement.
- Con: it's a construction project with digging, concrete cutting and yard restoration, not a window swap.
- Con: a poorly drained well can let water in.
- Wait if the basement has active water problems. Fix the water first, then cut the opening.
Questions to ask every egress installer
- Who pulls the permit, and is it included in the price?
- What is the net clear opening of the window you're quoting, and does it meet Michigan Residential Code sizing?
- Is the foundation poured or block, and how will you support the opening?
- How will the well drain, and is a cover included?
- Does the price include interior trim, drywall returns and yard restoration?
- What is your Michigan residential builder or maintenance & alteration license number?
In Michigan, a contractor replacing windows on your home generally needs a state residential builder or maintenance & alteration license (jobs of $600 or more). Ask for the license number and check it on LARA's license lookup (or call 517-241-9316). If your home was built before 1978, federal law requires the installer to be an EPA Lead-Safe Certified Firm (EPA runs this program in Michigan). If you sign a contract at home, Michigan law lets you cancel until midnight of the third business day (MCL 445.112).
Egress Window FAQ
Do I need an egress window in my Michigan basement?
If the basement has habitable space or a sleeping room, yes. LARA's Bureau of Construction Codes says the Michigan Residential Code requires basements with habitable space and every sleeping room to have at least one openable emergency escape window or exterior door. Storage, utility and toilet-only basements don't need one.
Does an egress window need a permit in Grand Rapids?
Yes. An egress window requires a permit and must meet Michigan Residential Code sizing, because cutting or enlarging a foundation opening changes the structure. In Grand Rapids, contact the Development Center at 616-456-4100; elsewhere, call your city or township building department.
How much does an egress window cost?
Published ranges put the window alone at about $300–$1,500 (Fixr, Jan 2026), with excavation and the window well at $3,000–$7,000 and a permit at $100–$500 (This Old House, 2026). These are not quotes. Grand Rapids installers price from your wall type, depth, access and finish work.
What size does an egress window need to be?
The model code calls for at least 5.7 square feet of net clear opening, a clear height of 24 inches, a clear width of 20 inches and a sill no higher than 44 inches above the floor, with a well at least 9 square feet. Confirm the 2021 Michigan Residential Code requirements with your building department.
Get quotes for an egress window
Tell us whether the basement is finished, the wall type if you know it, and which room the window serves. Independent local installers reply with no-obligation quotes.
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