It is important for you to check the references of any cleaning company that you work with. This is especially true when it comes to cleaning brick. Different types of brick require the use of different cleaning methods. If a cleaning service uses the wrong method, then they can damage the integrity of your bricks over time.

Make sure you know what kinds of chemicals they use ahead of time. Some cleaning companies use caustic cleaning agents that can wreak havoc on sensitive immune systems or respiratory systems. You should always know what kinds of chemicals are being used before you even hire the company.

Be sure to get an estimate from the cleaning company before they start to work. Any reputable cleaning company will send a representative out to your home to give you an estimate. If you feel comfortable, estimates can sometimes be given over the phone.

However, this is not a recommended practice if you have a large amount of brick to clean. This should only be done when you have a very small amount of brick that needs to be cleaned.