128 Plumbing, Heating, Cooling & Electric
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About 128 Plumbing, Heating, Cooling & Electric
128 Plumbing, Heating, Cooling & Electric has served Chelmsford and surrounding Eastern Massachusetts communities for 34 years as a independently-owned, full-service contractor holding state licensure across plumbing, heating, cooling, and electrical trades. The company maintains a 5.0-star rating across 673 verified customer reviews, with technicians available around the clock, every day of the week. Homeowners throughout Chelmsford, Lowell, Billerica, and surrounding towns rely on this team for everything from routine water heater maintenance to complete HVAC system replacements and electrical panel upgrades.
What distinguishes 128 from regional competitors is their breadth of specialized capabilities rarely found under one roof. As an Evergreen certified contractor, they install high-efficiency heat pump systems eligible for Massachusetts utility rebates through the Mass Save program. Their drain services division offers trenchless pipe lining, a no-dig solution for damaged sewer lines that avoids costly excavation. The company also installs EV charging equipment and handles legacy knob-and-tube wiring replacements, addressing two increasingly common needs for Massachusetts homeowners. All work is performed in-house by company-employed technicians rather than subcontractors, and the 24/7 availability ensures homeowners never face a plumbing or HVAC emergency without rapid response.
Customer reviews name specific technicians who handled urgent situations with measurable results. When Rachel MacKenzie's water heater failed on a Sunday, technician Charlie arrived the same day and thoroughly explained replacement options; teammate Andy completed the installation the following morning, bringing everything up to current code. During an emergency mini split replacement, Alfonso Ramirez's crew handled the boiler failure, electrical panel upgrade, and water heater replacement in a single visit. Patricia McCarron received a callback within one hour of her Friday morning call and had a new water heater installed by 9 AM the next morning, less than 24 hours after her initial request.
What Customers Say
All 673 reviews award 5 stars, with technicians Charlie, Andy, Craig, Wayne, and Kyle consistently named for thorough explanations, same-day arrival, and code-compliant installations. Multiple reviewers note response times shorter than promised and emergency coverage for weekend failures.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Plumbing Repair & Installation
Fixtures, water heaters, tankless units, and complete repiping for residential properties.
Water Heater Services
Installation, repair, and replacement of traditional and tankless water heating systems.
Heating Repair & Maintenance
Furnace service, radiator bleeding, heating system diagnostics, and annual maintenance agreements.
Heat Pump & Ductless Systems
Installation of variable-speed heat pumps and ductless mini splits for efficient heating and cooling.
Air Conditioning Service
AC repair, maintenance, central air installation, and indoor air quality solutions.
Electrical Panel & Wiring
Panel upgrades, EV charger installation, knob-and-tube replacement, and outlet services.
Drain & Sewer Services
Drain cleaning, sewer repair, trenchless pipe lining, and sewer certification.
Water Filtration
Whole-home water filtration systems for improved water quality.