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1) Check with friends, neighbors, or co-workers who?ve used a contractor 2)Look at sites you trust that post ratings and reviews 3)Find out how long they?ve been in business 4)Check for qualifications, like licensing 5)Get estimates & ask questions.

Home Improvement Contractor ("HIC") is defined as any person who owns or operates a contracting business who, through himself or others, undertakes, purports to have the capacity to undertake, offers to undertake, or submits a bid for residential contracting work to an owner, as such work is defined in 780 CMR R6 and Massachusetts General Law chapt

Most experts agree that a typical roof will last between 20 and 25 years. It also depends on whether the old roof was removed and you only have one layer of shingles, and if it is properly ventilated.

Average New Roof Cost. The average cost of a new roof is between $4,707 and $10,460 depending on the roof size and materials used. A 2,000 sqft. asphalt roof costs from $3,600 to $10,800 on average, while a metal roof costs between $8,000 to $24,000.

Tile and Asphalt are the most used materials for roofing, and they're manufactured with the usage of concrete, clay or oil. The rise of oil prices can directly impacted asphalt shingles to become more costly. Furthermore, the cost of disposing old and damaged materials has also increased in the recent years.

The answer is yes, you can lay new roof shingles over old ones. But before we get started, one thing must be clear: adding new roofing over old (sometimes called a "re-roof") is possible only with asphalt shingles (also called "composition shingles").