A smoke detector, which was faulty was installed in my condo at the time of construction. At 10 pm the smoke alarm went off. My ceilings are very high. I contacted Black-Haak heating at 8am in the morning. A very polite young man was at my house within less than 2 hours of my call. He installed 3 new detectors & batteries. He was punctual, put on booties over his shoes and was very polite. Awesome experience. Highly recommend them!!
