Excelsior Roofing Co.

Exceptional service, beginning to end. And we're extremely happy with the finished product. They left the building in better shape than it was beforehand, addressing some poor flashing issues on skylights and where our air conditioning lines penetrate the roof. Very clean overall, sweeping up debris and keeping the site tidy. There was some awkwardness with two air conditioners on the roof and they had a good sub contractor remove temporarily while they removed and replaced the roof and they nearly reinstated, and added good UV resistant insulation, which the previous installer didn't use. In addition to all this we installed solar and they blended the tilt rack anchors in to the roof as part of the job. Thank you Excelsior Roofing

Excelsior isn't the cheapest, but it is the best. They have solved for me a number of roofing issues left by other contractors - leaky skylights, bad flashing, caulking used instead of flashing, and so on. Excelsior has been in business for decades - they are one of the oldest roofing companies in San Francisco. They are very experienced and get the job done right the first time.