Average cost range $1650-3050 (as of 2023 pricing)
Consist of these typical components;
Putting in an egress window with a little labor help is easy to dig up and install. Hire labor from either a landscape company or temporary labor service. Using a casement window which is a crank out type, about 30×60 in size keeping it 40” or less to the floor.
Before ordering a window, you’d saw cut this straight down in the small window opening, no need to make it wider. You can hire a guy that just does saw cutting at a price per linear foot typically. Then frame it with pressure treated 2×12, check for being square and use shims to make this frame square before attaching with a Hilti Power fastening tool and liquid nails like you do your wall framing inside to the floor. Then measure and order a window to fit. Can saw cut and allow extra 3 ¼” in width and height for a readymade window size to safe money. You’ll tack up plywood while waiting for the window order. The window well has to be wider outside due to the swing of the window to allow rescue workers to get in and or for large guys like us to get out. With it offset, this will pass code and you must have a ladder in it attached to the well.
You can fasten this too with a tool like the Hilit which you can rent. If no perimeter drain, the well to the bottom of the foundation should be filled with gravel but if you order a window well and cover at these links, like this Bilco ScapeWEL® Window Wells – Planter Design or copy and past; https://windowwellsupply.com/ which not only looks nice but serves as the ladder too and this Window Well Cover Options, this will keep the rain from filling it up with water if not connected to a perimeter drain that runs to a sump.
The egress will provide a safe method to escape and or be rescued for any reason.