| 6 to 12 inches in diameter: | $ 550 |
| 12 to 24 inches in diameter | $ 1,400 |
| diameter 24 to 36 inches: | $ 1,800 |
| 36 to 48 inches in diameter: | $ 2,300 |
Before signing a contract verify contractor's license with Maryland Home Improvement Commission (MHIC) to make sure the license is still active. You may verify online or by phone:
Any home improvement contractor should provide you with current general liability insurance certificate. In order to be working at your home the contrator must have a copy of a current worker's compensation insurance certificate.