Thank you for your new question.
Yes, a general contractor or a construction/structural engineer would be good experts in this. Thank you for giving me the location of the claim as well, yes, small claims in MA is up to $7000. Furthermore, you need to send the utility company a letter called a 93A letter, which in MA is a very powerful tool, and this states that their conduct amounts to an unfair and deceptive practice and as such you will seek up to treble damages plus attorney's fees if they refuse to negotiate and settle this matter with you. Here is a SAMPLE 93A letter
Section 93a is very strong in favor of the consumer and you are a consumer of this company for sure. Generally, the 93A letter, even if you do not sue under 93A, motivates the business to settle your claim because they want to avoid triple damages and attorney's fees.
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