According to 2000 real estate agents surveyed by the real estate web site HomeGain.com and published in the June, 2003 issue of Money magazine (page 106), window cleaning is the number one presale improvement that generates the best return on investment as measured by a higher selling price. According to these statistics a typical window cleaning project by toronto window washing will return 768% and in Eavestrough cleaning project will return 594% when selling a home.
| Project | Typical Cost | Return on Investment |
| Lighten and brighten home, wash windows | $86 to $100 | 768% |
| Clean and de-clutter | $305 to $339 | 594% |
| Landscape and trim front yard and backyard | $432 to $506 | 266% |
