I don't know if it's gonna work in your country, at least it will not work over here in Holland. Somehow people (consumers, not business) always think the repair is to expensive. Why? Well, everyone has a brother, neighbour or cousin who can fix computers who work at technical departments too! At least thats what people think so don't let them make your price, like people said before me -> You will take anything if you are low on work.
At the place I work we made a point last years, high quality and service is where you pay for. We can fix everything, maybe you don't want to pay for it because the computer is a ol' piece of crap, but we CAN fix it. Thats what people like to hear 'cause they don't hear that from their neigbour

We have a lot of repairs because we can repair... and are good at it. Only problem is you have to keep it that way... Last year nearly 10 people applied for a job at our technical department and we kept 2 because they were capable of repairing computers the quality WE want... High quality...
Also I really make a lot of advertisement to consumers with yelling I can fix it! Once a consumer came to buy a new pc, and took his old pc with him. Some other (respected) company looked at this computer and they said nothing on the HDD could be saved anymore, it even took 2 weeks for them to find that out! Well, I said... Probably they don't know what they are doing if they need two weeks to find that out, before I sell you a new pc I want to try if I can get something back because I think I can... Don't get me wrong, maybe I am, but at least let me try.
And that's right, I got everything back, even got his Windows running again with all programs... I have never seen a consumer so lucky! They bought a new pc, and I got the best advertisement a company can wish, word of mouth marketing
Well, I think you get my point... Better take care of quality repairs, get a lot of word of mouth marketing and consumers will bring in the repairs for you
