Thomas Exchange Global

Your search ends. Here is where you should exchange your mula when in London town.
I was in desperate need for some British pounds after stupidly withdrawing a bunch of euros (this is what happens when your head is still in the clouds after a ridiculously long and delayed flight, thank you United). After doing some quick research on the best places to exchange cash, I came across a few forums that mentioned Thomas Exchange. Luckily there was a branch a brisk 15 minute walk from where I was staying.
I went there around mid-​morning on a Tuesday and had no trouble finding it in a covered arcade. There were a few people in line, but it moved very quickly. The tellers were very quick in handling each person’s request. I’ve seen banks in other countries where they would spend a good 30 minutes with each person, counting and recounting the cash, putting it through a counting machine, and then manually counting again. Thank goodness they didn’t do this here or else I’d be waiting for half a day.
Best of all the exchange rate was great, only off the market value by a few pennies. I’m writing this Unilocal review to point others in the direction of Thomas Exchange, but also so that I can remember to come here next time I’m in London!

Dad was in town and needed to buy some currency, seeing as he was getting the train from Moorgate, I suggested we come here. We stopped for lunch and I placed an order online from my phone. This is what you should always do. It won’t help you skip the line, but you will get a better rate. No payment over the phone and no cancellation fee. Therefore I see nothing but bonus (for them, it means that they can set it aside in advance). They’re an offshoot of their corporate FX arm, so this is a fairly lucrative side business.
Get to the arcade and there is a queue, we passed 3 FX places on the way, all with no one even making transactions. In fact this one was so busy, they had a member of staff offering to take them to their sister branch a short walk way. Once we got to the counter, we were in and out in a few minutes. Another transaction with them and still no complaints!

Came here to snag some € before heading to Belgium. There was a line but it passed quickly. When I produced my debit card for the transaction the attendant informed me my bank would charge me a £5 fee and instead suggested I go around the block to get cash from an ATM, which I did. He added that when I got back from the ATM he would take me right away so I wouldn’t have to wait in line again. So the whole process went quite smoothly and I definitely appreciated the advice from the worker. This place has good rates and is certainly a solid option for your FX needs.

There’s always a queue at this place.
TEG compete against the major banks and Post Office rates. Definitely worth using if you don’t have the time to shop around and check the competition. They also give a further rate discount if you wish to purchase HUGE amounts of currency (ask at the desk — you will need to have ID).
The staff were very patient and helpful. They even advised whether my bank would charge me for the transaction using my debit card.