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Business Details
41 Years
experience
Emergency
services
Your Trusted Partner for Plumbing & HVAC Solutions
Stefani Plumbing & Heating has served South Shore homeowners and businesses for over 35 years, delivering expert plumbing, electrical, heating, and cooling services with unwavering commitment to quality, safety, and customer satisfaction. Our licensed technicians specialize in emergency repairs, system installations, and maintenance for residential and commercial properties, ensuring year-round comfort and reliability. With 24/7 emergency service, transparent pricing, and a focus on code compliance, we pride ourselves on treating every client like a neighbor.

Our Generac authorized dealership expands our capabilities to include standby generator solutions, protecting homes from unexpected power outages. Backed by 200+ Google reviews and a 4.8/5 rating, we maintain industry certifications and invest in ongoing training to uphold our reputation as Plymouths trusted service provider. From routine maintenance to complex installations, our team prioritizes clear communication, clean workspaces, and durable solutions tailored to each clients unique needs.
Services
Plumbing Repairs HVAC Installations Electrical Services Generator Maintenance Water Filtration Gas Line Repairs Commercial Plumbing Ductless Systems Surge Protection Backflow Prevention
Details
  • Year established: 1985
Highlights and features
  • Licensed, insured technicians with 35+ years of local experience
  • 24/7 emergency service available for urgent plumbing and HVAC issues
  • Transparent pricing with no surprise charges
  • Certified backflow prevention and gas line specialists
  • Generac authorized dealer for standby power solutions
Associations and certifications
  • Generac Authorized Dealer
What people say
24/7 emergency response Fair pricing Professional technicians Reliable installations Prompt service
Services
Plumbing Repairs
Our licensed plumbers address leaks, clogged drains, and fixture issues with prompt, durable repairs. Emergency services handle burst pipes and urgent backups 24/7. We specialize in water line replacements, leak detection, and trenchless pipe repair to minimize property disruption while restoring full functionality to residential and commercial plumbing systems.
HVAC Installations
We install high-efficiency furnaces, air conditioners, heat pumps, and ductless mini-splits for year-round comfort. Our technicians ensure proper system sizing, code-compliant installation, and integration with smart thermostats. Commercial HVAC solutions focus on energy efficiency and minimal operational disruption for businesses across the South Shore region.
Generator Maintenance
As a Generac authorized dealer, we provide standby generator installations and maintenance plans. Our services include annual inspections, oil changes, and performance testing to guarantee reliable operation during power outages. We service all major brands and ensure systems meet safety standards for residential and light commercial applications.
Electrical Services
Our licensed electricians handle panel upgrades, circuit repairs, and whole-house rewiring projects. We install surge protection systems, smart lighting, and GFCI outlets while maintaining strict safety protocols. Electrical safety inspections identify hazards and ensure compliance with current codes for home purchases or renovations.
Water Filtration
We design and install whole-house water filtration systems to improve drinking water quality and appliance longevity. Our solutions address hard water, sediment, and chemical contaminants while maintaining optimal water pressure. Backflow prevention services protect municipal water supplies from cross-contamination in residential and commercial settings.
Questions
What emergency services are available after hours?
We offer 24/7 emergency plumbing, HVAC, and electrical services with technicians available year-round for urgent repairs.
Do you service commercial properties?
Yes, we provide plumbing, HVAC maintenance, and electrical services tailored for small businesses and light commercial spaces.
Are financing options available?
Yes, we offer financing plans for major installations like generators, water heaters, and HVAC system replacements.
What areas do you serve?
We serve Plymouth, Carver, Kingston, Marshfield, and surrounding South Shore communities in Massachusetts.
Are technicians licensed and insured?
All our plumbers, electricians, and HVAC technicians hold active Massachusetts state licenses with full insurance coverage.
Do you offer maintenance plans?
Yes, we provide HVAC maintenance agreements and generator service plans with annual inspections and priority emergency service.