• The best way to know about a company is by getting enough feedback about it from its past clients. Ask the company to give you referrals. Call these clients to gauge their level of satisfaction about the company.
• In case you took a liking for a particular company visit their website and find out how long they have been in business, what are their USPs etc. Also read the testimonials of the customers about them.
• Get in touch with consumer affairs organization in your area to know if the reputation of the company is without any blemish. It should have minimal customer complainant and a good standing.
• All states do not require the duct cleaners to hold license. Call the NADCA or a government official to know if the cleaners in yours states need license. If yes, ask the company if it holds a license.
• Determine if the air duct cleaning company has liability insurance. This will protect you if the cleaners cause any damage to your property when cleaning the ducts.
• If you can hire a company which is member of National Air Duct Cleaners Association (NADCA), it is safe. Such companies are safe bait as they are trained and certified by NADCA and will abide by the rules of cleaning and restoring the HVACs. You can also contact the NADCA to know if the company has a good reputation in that case.