Plumbing & Heating Expertise Since 1904

Welch Brothers Plumbing and Heating is a full-service plumbing and heating company serving commercial and residential customers in the Merrimack Valley.  Our specialties include the installation and repair of all types of boilers, water heaters and plumbing fixtures. If you are looking to improve the efficiency of your heating system our experts can provide options such as high-efficiency boilers, tankless or on demand water heaters, as well as conversion to natural gas. From a pesky leaky faucet to a tired poorly designed bathroom or kitchen - no job is too small! We're proud to have been serving the Greater Lowell and Merrimack Valley area since 1904!