· Michael Blair
Window cleaning quotes look similar and describe different work. Screens, tracks and interior glass are the three items that account for most of the difference.
Usually included
Exterior glass, washed and squeegeed, with frames wiped down. That is the baseline everyone quotes.
Anything beyond it should be stated rather than assumed.
Commonly extra
Interior glass, screen removal and washing, track and sill cleaning, and any hard water spot removal, which is a separate treatment rather than part of a wash.
Also high or awkward access such as over a conservatory roof or above a steep bank.
- Confirm whether interiors are included
- Screens removed, washed and refitted, or not
- Tracks and sills cleaned, or not
- Hard water spot removal is a separate treatment
- Ask what happens if it rains the next day
Screens are the usual gap
Washing screens properly means removing, cleaning and refitting them, which takes real time. A quote without them will leave glass that dirties again with the first rain.
It is the item most worth confirming explicitly.
Practical questions
What happens if it rains immediately afterwards — most companies do not re-clean for weather, and that is reasonable, but it should be known rather than discovered.
And whether they are insured, since this is ladder work on your property.