I think this company is based in dorchester. They are a bunch of Vietnamese people who know how to speak both viet and cantonese. Their work ethnics are a bit shoddy as they use little material to do their work to save themselves money but they work every single day until they get the job done. I don't know if it's just me or if the only real gripe anyone should have with them is their pricing for services. For something as simple as sealing up a ceiling with a wooden board, they charged $400 for such an easy service. Just nail the board in there and then you pay them $400. Wow, I say. Other than that, they do a fairly good job overall.