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Certifications and Training

  • MA Corporate License 3278
  • EPA Lead-Safe Certification NAT-25247-2
  • MA Lead-Safe Certification LR002303
  • Viessmann Vitodens Training
  • Bosch Greenstar Training
  • Buderus Hydronic Education and Logamatic Programming
  • Buderus G125BE Training
  • Lochinvar Troubleshooting Training
  • Buderus GB142 Training
  • Lost Art of Steam Heating Seminar

Our Company

Our history has shaped who we are

Pipelines, Inc. was formed in the mid 1980’s by Maura Russell, a pioneer in a strictly male industry. In 1993, Chris Ernst and Maura Russell restarted the company, which had closed briefly, and in 1999, Chris became the sole owner. Our company began with a secret ingredient: the women who worked here chose this profession and did their work under great scrutiny and a large measure of scorn. At a time when society was turning its back on skilled labor, they made it their own, honoring their craft and defending their right to ply it. Pipelines has continued with the same spirit: operate with integrity, be educated in what you do, treat people with respect and take pride in a day’s work because, in truth, the world rests on the shoulders of people who work with their hands.

These are the principles that shape Pipelines, Inc., and have made it a truly unique plumbing and heating company. At Pipelines, you’ll find plumbers who believe that the work they do is important. They are educated, involved, and treated well by the company; they are the professional plumbers you want in your home. 

Kevin Mahoney


Kevin is the newest addition to Pipelines, joining the team in 2009. He brings 12 years of plumbing experience to the company. Kevin is a graduate of an intensive training course through the New England Fuel Institute. Prior to his apprenticeship, Kevin was Custodial Maintenance Supervisor at the Benjamin Franklin Institute of Technology. Following Franklin’s example, Kevin feels that it is important to be a lifelong student: there is something to learn every day.

Kevin is a US Navy veteran and enjoys spending time as an active musician and with his cats.

MA Journey Level License 31112
EPA RRP Lead Safe Contractor Certification R-1-18398-10-01022
EPA RRP Renewal 15-0080374-242803
CSST (gas pipe) Certification
Omegaflex 1144699

Jennifer Cushman


Part of Pipeline’s team of experienced problem solvers, Jenn likes to assess a difficult plumbing situation and find the right solution to suit the circumstance. She has thirteen years experience in plumbing, heating and gas fitting, nine of which at Pipelines. Says Jenn, “At Pipelines, we care about our customers, we want you to get the most from your plumbing and heating system. It’s one more way we strive to provide the best service available.”

Jenn lives in Boston with her wife, Meg, their son, Owen, and their pets, a dog and two cats. Jenn is a graduate of Women in the Building Trades.

MA Apprentice Plumber Registration 27638
EPA RRP Lead Safe Contractor Certification R-1-18398-10-01006
EPA RRP Renewal 15-0080-374-242811
CSST (gas pipe) Certification
Omegaflex 990909JHJC

Catherine Howell

Master Plumber

Cath has been in the plumbing and heating industry for 27 years, and with Pipelines since 1994. What she enjoys most about her work is solving complicated problems like the challenge of plumbing new fixtures into an existing structure. It’s often Cath who will answer the phone at Pipelines. She’s a listener and communicator, understanding what matters most to her customers. “It’s important that we take the time to understand what’s important to you and help you understand the plumbing and heating system you live with. My advice is freely given and yours is gladly accepted.”
When Cath isn’t at Pipelines, you’ll find her bird watching, enjoying the outdoors or listening to classical music.

MA Master Plumber License: 12711
MA Journey Level License: 23750
EPA RRP Lead Safe Contractor Certification: R-1-18398-10-01014
EPA RRP Renewal: 15-0080-374-242803

CSST (gas pipe) Certifications
Wardflex: 050810
Omegaflex: 990909JHCH
Gastite: 98140367

Christine Kidder Ernst


With an undergraduate degree from Yale College and a post-graduate degree from Local 39 Plumbers and Steamfitters (studying under the great Carl Costa), Chris embodies the values passed through her family by her maternal grandparents who raised nine children: Emma Blackstone, a Boston University graduate, and Albra Reed, a carpenter and laborer. Not only does she take great pleasure in solving complicated plumbing and heating problems and building systems that work for her customers, she enjoys teaching her staff how to ply their trade with excellence. Says Chris, “ We can and do change the world a little bit every day whether by making someone’s house more comfortable, helping to conserve water, or teaching our customers how things work in their own homes.”

A former Yale Women’s Crew and U.S. National Team rower, Chris is now an aspiring beekeeper.