What basement window replacement involves
Most basement windows are one of three kinds: a hopper that tilts in from the top, a small slider, or a fixed pane that doesn't open. We measure each opening and match the new window to it. On install day:
- The old window comes out. Steel frames set into block or poured concrete are cut out without damaging the opening.
- The new vinyl window is set, shimmed level and insulated around the edges.
- The outside is sealed to the foundation, and the inside edge is trimmed or finished.
We look at the window well too. A well full of leaves and soil, or one that holds water, will leak through any window, new or old.
Signs your basement windows need replacing
- Rust flaking off a steel frame, or holes rusted through
- Soft or crumbling wood frames
- Water stains on the wall below the window
- Single-pane glass that drips with condensation
- A latch that doesn't catch, so the window can be pushed open from outside
- Cold air coming in around the frame
Why basement windows give out first
They sit at or below ground level, so they're up against damp soil, splashing rain and snow that piles into the window well all winter. Steel rusts, wood rots, and the single-pane glass in many older basements does almost nothing to keep the cold out. They're also easy to forget about until something leaks.
Same opening, not a bigger one
This service replaces windows in the openings you already have. If you're finishing the basement and need a bedroom window large enough to climb out of, that's an egress window: the foundation is cut wider, a bigger well is dug, and city building rules come into it. That's a different job, so we'll tell you right away if it's what your project needs.
What affects the cost of basement windows
- How many windows you replace at once
- Size and style: hopper, slider or fixed
- Old steel frames cast into the wall, which take longer to remove
- Repairs to crumbling block or mortar around the opening
- Glass choices, such as obscure glass for privacy
- Interior finishing if the basement is finished
Basement windows are smaller and usually cost less each than main-floor windows. More on pricing on thecost page.