GF Sprague is simply the premiere roof structure general contractor servicing your greater Boston Mass. area since 1969 The materials we do the job with incorporate; shingle, slate, and rubber. GF Sprague additionally installs and repairs gutters, especially copper. We offer you no cost infrared digital camera examinations as well as zero percent loans for up to a dozen months. In the event that you have got a roof, we possess your own solution.