Can anyone give me contact details of agencies that will let out serviced flats in Bangkok for 30 days?

Answer 1

There are a number of agencies that handle this.

http://www.mrroomfinder.com/index.php
http://www.mrroomfinder.com/index.php
http://www.servicedapartments-bangkok.com/index.htm
http://www.salecd.aeba.co.th/
http://www.thanatawee.com/
http://www.ballys-studio.com/rates.html
http://www.princetonparksuites.com/
http://www.ggrove.com/
http://www.cbre.co.th/cbrecontent/homepage.htm
http://www.centralbangkokapartment.com/
http://www.bkkcityliving.com/
http://www.alamedasuites.com/
http://www.thailandservicedapartments.com/
http://www.roominbangkok.com/
http://www.bangkokapartments.info/
http://www.kkeasyhome.com/
http://bangkokproperty.com/
http://www.bangkokcondos.com/

And you can try www.asiarooms.com cause many of the serviced apartments also list on hotel websites.

Good luck

Answer 2

If all you want is 30 days - you may prefer a local low-end hotel where you pay 800 - 1200 TBH/ day and negotiate a 20% discount for 30 day stay. Staying in a serviced flat for only 30 days is a lot of work to find for a short time (a hassle = not worth it). You can try the President Park Serviced Apartements (google them) - they are more high-end and have several propreties to choose from. Or check out Bangkok Post on-line for listings.

Also check out
http://www.bangkok.com/hotels/serviced-apartments.html