O P Viau & Sons Inc

O P Viau & Sons Inc is a Lowell, MA plumbing outfit whose website says it's been in business for 100 years and offers 24/7 emergency service. There isn't much to go on yet online — just one Google review on file, from April 2026, and it isn't reassuring: the reviewer wrote that the company is now "just MillTown masquerading as what once was OP Viau & Sons," suggesting a different operator is now running things under the old name. That lines up with another detail worth knowing: the company's own New Hampshire Master Plumber license number (3018) checks out as active on the state registry, but the registry lists its holder of record as Fred L. Webster, Sr., not a Viau. A separate Massachusetts Master Plumber license the company claims on its site (#10577) hasn't been verified against any registry. With only a single review on file and a licensed name that doesn't match the business name, it's worth asking directly who currently runs the company, and confirming both license numbers yourself before booking anything.