(603) 524-7152 Lakes Region (603) 778-6217 Seacoast



Granite State Home Improvements is an elite CertainTeed 5-Star Contractor. In order to achieve CertainTeed 5-Star Contractor status, we were required to pass a series of exams including the Vinyl Siding Master Craftsman and the Restoration Millwork Master Craftsman. We also attended and passed the Vinyl Siding Institute Certified Installer Program. The requirements are carefully designed to ensure only the best and brightest contractors receive the special designation.


Granite State Home Improvements is certified through the Vinyl Siding Institute's Certified Installer Program. The Vinyl Siding Institute's certification is based on a combination of work experience and successful completion of a course of training and examination based on the body of knowledge and applied skills needed to properly install vinyl siding as well as soffit and accessories.

Granite State Home Improvements is also honored to have received an Award of Distinction for Historic Restoration from the Vinyl Siding Institute.

Granite State Home Improvements is recognized by CertainTeed as a ShingleMaster Company. Shingle Master contractors are focused on superior workmanship and customer satisfaction. ShingleMaster status is earned by participaing in a ShingleMaster Credential Course. As a ShingleMaster Company, Granite State Home Improvements can offer you SureStart PLUS extended warranty coverage when an Integrity Roof System is installed on your home.

Granite State Home Improvements is proud to be a Lead Safe Certified Firm, and to be trained in lead safe renovation practices.



Low Key Sales - We prepare comprehensive proposals, provide necessary literature and local customer references. In the end, the final decision is yours. High pressure just isn’t our style. 

Exceptional Service - 75% of our business comes by way of customer referrals, so we depend on today’s customers for tomorrow’s business. We strive to treat our customers how we, as consumers, want to be treated.

Superior Craftsmanship - We have great confidence in our crews, their work and our products. We understand that without excellent craftsmanship, we would not be where we are today and we take that fact seriously.

Properly Insured- You can be secure in the fact that Granite State Home Improvements is insured. Certificates of Insurance for General Liability and Workers’ Compensation Policies are available upon request.

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