Trust B.L. Mosher Construction for free estimates, full insurance, competitive pricing, top quality workmanship and a great clean-up! B.L. Mosher Construction, LLC specializes in providing quality renovations at an affordable price. Locally owned and operated, B.L. Mosher Construction, LLC has served the residents of Cape Cod for over 23 years with superior roof and general contractor work. We've worked hard to earn our reputation for quality craftsmanship, honesty and integrity.