There are many things to look for in a carpet cleaner here are some tips and tricks
1) Are they certified technicians? Does it say it on their website? If so they’re knowledgeable and experienced. http://www.cleanfax.com/
2) Do they have good Yelp, google, and BBB Reviews? This will help you decide if they have a good honest reputation. Some cleaners will get into your home and use the bait and switch method and charge you outrageous prices. Stay away from these cleaners!
3) Ask them how long they have been in business? This will help in determining their experience as well.
4) Ask them their cleaning methods? This will let you know if they know what they’re doing or not. If they handle this question with confidence and ease they are more than likely a great cleaner.