For someone with almost five years of professional experience as a Web Developer I think I'm paid a low salary in the UK. I reckon I'm paid well at my company,

For someone with almost five years of professional experience as a Web Developer I think I'm paid a low salary in the UK. I reckon I'm paid well at my company, but I believe I could get better elsewhere. It would probably be 20-25% for me to quit right now and join in a month. However, a lot of this will depend on who is offering the money, and the quality of the job I'll be walking into. Let's say Company X offer me a 20% increase on my salary, but developers at Company X are stressed out and work tons of extra hours, I'd flat out decline. If Company Y come along, offer me 5% more money than I am currently paid, but have a much more relaxed atmosphere then I would probably take it. I've had a few offers from companies that would bump my salary up about 25%, but I know people that have worked for these companies, and they have awful reputations for treating their developers like shit.