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Claim This BusinessBob Gagnon Plumbing & Heating has served Lowell and the surrounding Massachusetts community for over two decades, holding Master Plumbers License #9694. The owner-operated business maintains a 4.3-star rating drawn from six client reviews, working across both residential homes and commercial properties throughout the Lowell area. Bob Gagnon personally handles every job that comes through his door, a model he credits for achieving near-zero callbacks over his career.
What distinguishes this contractor is his specialized focus on radiant heating systems alongside a comprehensive five-year guarantee covering major installations such as boiler replacements, heating system upgrades, and bathroom remodels. The company integrates solar thermal technology and heat recovery systems into their service offerings, and all large projects receive a written warranty backed by the owner's confidence in both materials and craftsmanship. Emergency situations receive direct cell phone access, ensuring homeowners can reach Bob directly when urgent heating or plumbing issues arise.
Donna Greenhalge's June 2025 review describes a complete high-efficiency boiler and water heater installation where Bob handled all pipe soldering and coordinated with Tessier Electric to complete the work without scheduling conflicts. She notes Bob kept her informed at every step and exceeded her expectations for craftsmanship. A contrasting review from Michael Thomas raises concerns about whether boiler failures are expedited to generate future installation work, suggesting potential clients should request detailed explanations of any recommended replacements.
Two of three reviewers awarded five stars, praising Bob's craftsmanship and communication, while one negative review from 2025 flags concerns about recommended replacements aligning with manufacturer timelines. Customer feedback specifically mentions coordinated work with Tessier Electric and personal owner communication as strengths.
High-efficiency boiler installations with five-year guarantee, personal installation by the master plumber.
Water heater replacements including tankless and traditional units, installed with premium materials.
Radiant heating systems for new construction and retrofits, the stated specialty of this contractor.
SolaRadiant solar thermal installations capturing renewable energy for heating applications.
Cooling system installations and service for residential and commercial properties.
Heat recovery systems capturing energy from grey water for additional heating efficiency.
Complete bathroom remodeling services covered under the five-year installation guarantee.