Grantham Fire Protection of Tucson, Inc. deals in Commercial and Residential fire sprinkler systems. As requirements are becoming stricter I would recommend for new home buyers to have a sprinkler system installed in their new home when building and to call Grantham Fire to take care of it for them. Their work is done in a clean and timely manner and their knowledge of the industry is impeccable. Why leave it up to insurance? Protect your house before you need to.