In truth, this is unsurprising, since slate tiles themselves are expected to serve for more or less a hundred years before finally failing. Here in the United States, a roofing professional must have relevant certifications and qualifications to even be considered for slate roof repairs. Those who need slate roof repair in Sunnyvale, California turn to contractors who are Diamond Certified and Better Business Bureau-Accredited, such as Shelton Roofing.
Having these qualifications is important because repairing slate roofs can take quite a while and it pays to have someone who has all the basic credentials to do the job right. After all, it is not only necessary for the tiles to be replaced individually. The frame and trusses of the roofing system have to be inspected as well so that the roofer will know if they are still structurally stable and sturdy enough to accommodate newer tiles.