Why Installing an Egress Window Is the First Step to a Safe and Livable Basement Space
Thinking about converting your basement into a bedroom, guest suite, or rental unit? Great idea — but before you add a bed and dresser, there’s one thing your basement must have by law: an egress window.
At HKF Construction, we help homeowners take the right steps to transform unfinished basements into comfortable, safe, and code-compliant living spaces. And it all starts with one opening.
What Is an Egress Window?
An egress window is a window large enough for a person to safely exit through in case of emergency — and for emergency crews to enter. Building codes require them in any basement room used as a bedroom.
It’s not just a formality — it’s about life safety, light, and ventilation.
Legal Requirements for Egress Windows (Massachusetts)
To be considered a legal bedroom, your basement space must include:
- A window with a clear opening of at least 5.7 square feet
- Minimum opening height: 24 inches
- Minimum opening width: 20 inches
- Maximum sill height: 44 inches from the floor
- Window well with ladder or steps (if installed below grade)
We make sure every egress window we install meets these codes — and looks good doing it.
Benefits of Installing an Egress Window
It’s not just about legality — it’s a true upgrade
Makes the basement legally count as a bedroom- Adds natural light and fresh air
- Increases home value and resale appeal
- Creates a safer space for sleeping or long-term use
- Potential for extra rental income or multigenerational living
Our Egress Window Installation Process
Fast, clean, and fully compliant
- Planning & Permit FilingWe handle all code requirements and permit applications with your town.
- Excavation & Opening CreationWe dig and cut the foundation wall to create the opening, with precision and minimal disruption.
- Window Well InstallationWe install a code-compliant window well with proper drainage to avoid future water issues.
- Window Installation & FramingWe install the window unit, insulate around it, and frame the interior for a clean finish.
- Interior Trim & Optional FinishingWe finish the interior with drywall, trim, and caulking — ready to paint and furnish.
Want to Turn Your Basement Into a Bedroom?
You can’t call it a bedroom without an egress — but with one, you unlock so much more than a legal label. You open the space, invite light, and make it safe for the people who use it.
Contact HKF Construction for a free basement egress window quote
Serving Medford, Somerville, Arlington, and the Greater Boston area
We’ll help you do it the right way — safely, legally, and beautifully
