We haven't been in our house long and the lawn is a bit patchy, some bits are basically bare earth and the rest is really pale. I've though about re-seeding but don't want to spend the time and money if there's something wrong, like a disease or something.
Any suggestions? A friend suggested getting someone in to have a look, this kind of thing TruGreen Poughkeepsie, NY Lawn Care | 1-855-545-4240 so that it can get properly assessed.

Never had much of a garden before, there are quite a few shrubs etc that seem ok so it would be a shame to let the lawn go.

Thanks.