Thinking window cleaning might be a great add-on, but still feel a little overwhelmed by how to get started? It’s okay to ask for help.

“One thing that can alleviate the anxiety about getting into window cleaning is there are a lot of training programs out there,” says Draper. “Spend a few hours in a class and you can cut years off of the learning curve.”

Distributors who sell window-cleaning tools typically offer training, as does the International Window Cleaning Association.

If window cleaning is a new offering, it may be a smart move to add someone more knowledgeable to the management team.

“If a BSC were to truly add full-service window cleaning, in my opinion they should hire a certified professional window cleaner to develop and oversee this aspect of the company,” says Newman.

Adding window cleaning to a roster of services requires investment, but the payoff can be worth it. As an example, one of Unger’s BSC clients was experiencing heavy client turnover. They provided basic interior-cleaning services to mostly one- and two-story buildings, and every two years they were losing a fair amount of their contracts.

“They wanted to add more services to get more ‘stickiness’ with their customers,” says Lombardo. “We came up with an indoor and outdoor [window-cleaning] program, which they started in 2014. It has increased their customer retention from an average of 18 months to an average of almost 36 months. That extra service helped them differentiate themselves from someone who would only do basic cleaning.”

Becky Mollenkamp is a freelance writer based in St. Louis.

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