Williams Energy
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About Williams Energy
Williams Energy delivers heating oil, propane, and comprehensive home services to Braintree, Marshfield, and the broader South Shore region of Massachusetts. The company holds a 4.8-star rating from 317 reviews, reflecting consistent customer satisfaction across heating fuel delivery and equipment servicing. Founded in 1919, this family-owned business has operated for over a century, providing the stability and local knowledge that comes with deep community roots. Beyond heating oil, Williams Energy handles propane delivery, plumbing repairs, electrical work, and full HVAC installation and maintenance, making them a versatile single-source provider for residential home systems.
What distinguishes Williams Energy from regional competitors is their commitment to American-made equipment and their comprehensive service model. The company installs Energy Kinetics boilers, a manufacturer recognized for high-efficiency residential heating solutions, and double-walled oil tanks that provide enhanced environmental protection. They offer service plans that include annual tune-ups, and they advertise rebate programs for customers upgrading to more efficient equipment. This combination of preventive maintenance options and equipment expertise allows homeowners to address both immediate repair needs and long-term efficiency goals through one provider.
Customer reviews highlight specific scenarios that demonstrate Williams Energy's responsive service. One reviewer described how the company arrived the day after requesting fuel delivery and boiler servicing, completing both in a single visit. Another customer recounted a frozen pipe emergency during the coldest weekend of the year, when Williams Energy responded even though the customer had not yet established service with them. A third reviewer praised the installation of a 50-year-old boiler replacement, noting clear communication throughout the project and thorough cleanup after the work. Technicians mentioned by name include Maryellen, who one reviewer described as professional and compassionate during the account setup process.
What Customers Say
All five sampled reviewers gave 5-star ratings, with customers specifically praising same-day fuel delivery, emergency responsiveness during extreme cold, and transparent upfront pricing. Multiple reviews mention the company handled situations other contractors could not resolve, including frozen water lines and unexpected burner failures.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Services
Heating Oil Delivery
Premium heating oil delivery for residential homes, with scheduled automatic delivery options available.
Propane Delivery
Propane delivery for home heating, cooking, and other propane-powered appliances.
Boiler & Furnace Installation
Installation of Energy Kinetics boilers and other heating equipment, including replacement of aging systems.
Oil Tank Services
Double-walled oil tank installation and replacement for enhanced environmental protection.
Plumbing Repair
Plumbing services including water heater installation, leak repairs, and fixture installation.
Electrical Work
Electrical repairs and updates for residential properties, including panel upgrades and wiring.
A/C & Heat Pump Services
Air conditioning repair, maintenance, and new system installation for residential cooling.
Service Plans
Annual maintenance plans that include system tune-ups and priority scheduling.