How do I hire a good commercial cleaning service?

First, search online for top-rated commercial cleaners in your area so you can quickly compare their ratings, reviews and prices. You can also see examples of the cleaners’ past work by searching for photos they (or their customers) posted online on the cleaners' profiles. As you’re comparing cleaning services, take note of the ones who seem to offer the best services and quality — these are the cleaners you should contact first.

When you contact the commercial cleaners, ask them to send you a free estimate for their services. Let them know how big your space is, which areas you’d like them to focus on and how frequently you require commercial cleaning. 

After you’ve received a few estimates, decide which one to hire based on your budget.