Anything i can do to get a better signal?
Get a different phone with better radios? Samsung is a bit weak in that department compared to Motorola, for example.
Don't they have Wi-Fi at your work?
The thing you'd normally do if this was happening at home would be to get a Network Extender. It's a one-time cost and you can get ones that improve just data, just voice or both, depending on what you're having a problem with. Verizon sells them if you're interested.
Note that workplaces are typically subject to poorer signal quality since there's usually more walls, more furniture, more metal, etc. I used to work in a lab area where my phone got essentially no signal, and the phone would kill the battery in a few hours constantly searching for a signal. I just had to put it in Airplane mode while at work. YMMV.
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