Ok good logo by the way!
Try and sell this new service to you existing customers
What i did i spoke to customers that were in to get feedback as to see if it was a service that they would be interested in,
From there i gave every customer a news letter to let them know that i was offering this new service,
I mean if you are going to expand you might as well do it within your customer base
I got about 25% of my customer base for internals most 8 weekly and some as and when i have at the moment 67 internals i need 80 a month i am doing 10 a day that is glass and frames earns me £150 a day for 2 days a week=£300
I all so do a morning job which only pays £105 a week for 3 hrs a morning but added to the £300 for the internals gives me £405 a week even if i cant get out to do any externals which i do 75 a week earns me another£450 so on a good week i earn £855 and a bad week £405
The £105 job is crap money but what a life saver it was this winter, i put the money away every week and did not touch it and gave me over£2500 to get me through, when i have more externals i can give that one up,
any way for every 10 new customers that i take on i try and get at least 2 for internals as well
So doing internals can keep your head above water and you dont have to rely on the weather it is harder to get going than it is for externals but you dont have to worry about the weather.
ps. if you need any help in what to use for internal cleans you only have to ask!