Researching online can provide you with a number of generator repair services that can assist you with maintenance and reconstruction of a generator. Depending on the type and manufacturer of the generator you may find that the original manufacturer has licensed repair specialists contactable through listings on its website.
Local repair services may be available and located using your local directories or advertisements. Contact your local utilities company for any listings they may have for outsourced repair services as often these companies work outside of the utility companies for consumers as well.
Industry publications such as MacRae's Blue Book and other trade directories also contain listings of generator repair services. Online directories for these publications can also be found for a more accessible search. Otherwise, a local library may have copies available for use. These databases can be searched based on location or repair need.
Often you can find a repair service from referrals from others who have needed a similar repair. Checking online repair forums and inquiries of your own friends can help you find a local service through someone with personal experience with its work and results. Browsing these types of sites can give you a general understanding of the type of repair you need and the negative and positive results others have had that you can look to for advice in your search for a repair service.