LBA first saved my chilly butt three years ago when my furnace went out. In January, of course. 24 hours later, I had a new system that's saving me lots on utilities. Five months later they replaced my entire sewer line in 3 days with a lifetime guarantee against tree roots. Since then, they've only had to come out for scheduled maintenance and filter changes, but every time, the technician is on time, courteous, and professional. LBA may be a little pricier than some companies, but I think you get what you pay for.