Reviews of local pros in Braintree, Massachusetts

We were very happy with the service Todd gave us, bless this young man.

I am a realtor who recently represented a seller in Hingham whose home was vacant. In the midst of a cold snap, I reached out to Williams Energy in a panic when I discovered that interior temps had dipped to the mid 40's. Within 2 hours, Williams had someone at the house to rectify the situation. Their prompt response averted what could have been a frozen pipe situation. I highly recommend Williams!

Won't schedule an install.
Their techs told us we had a potential CO leak with our furnace. Couldn't afford replacing at the time so lived in sweats and used space heaters the end of last winter.
Have the money now. Sent them a deposit, which they cashed, and its been a month and they are not returning phone calls and still have not scheduled the install.

Edit:
The install has since been done. The crew that came out did a great job considering the location of the furnace adding an extra level of difficulty (crawl space).
We had the same company install an oil tank last year and that crew did a great job as well. Overall, very happy with the actual work.

I am a new customer to Williams Energy and their services has been exceptional. I took over the home maintenance for an elderly parent and had an issue with the heating system. I called Williams Energy and they responded quickly, within a few hours, and were able to get the system back up and running in no time. Very well done Williams.

As a new customer of Williams I have been impressed with the professionalism of their office support staff and field technicians. As both my air conditioning system and boiler approach the quarter century mark their service plan provides a measure of comfort.

Williams is always great to work with. Ian was very helpful during my annual service visit.

Thank you.

We had a boiler issue in our recently purchased home. We called the number on the boiler (a national company that will remain un-named here) and they dispatched a tech promptly. He immediately tagged the boiler as unusable and said it needed to be replaced immediately. He then gave us an astronomical quote for replacement right then and there. So, we called Williams Energy for a second opinion/quote. They dispatched a very knowledgeable technician that evening who came in and tested the boiler. He made a few tweaks and got it running in order to heat the house enough to get the chill off and to protect the pipes. The next day we had an estimate in hand that was HALF THE PRICE of the national company. In full transparency, we got a third quote, and it was almost $4K more than William Energy with actually less new parts. All work by the Williams teams was professional, neat and clean. All techs were professional and courteous. The job site was spotless when they left and we are very happy with the new system. We are proud to give Williams Energy a 5-star review. If I could give more I would. Thank you to your entire team.

As an update to the continuous 5-star service I continue to receive from the Williams staff - a shout out to Annemarie and Cathy who guided me through the newly offered plumbing services by Williams. I was blessed with Corey and Donny from the plumbing department (outstanding) who replaced my water heater and educated me on the new type of water heater I had choose. Feeling so relieved I now have a plumbing AND heating service that I 100% trust and know they will always be there for my family and me. They continue to exceed the five stars given. While i have had Williams for over 40 years (may parents also had them when i was growing up in Braintree), it is so nice to know there is still top-quality service providers and customer support - with Williams being the perfect exempt, ❤

I would like to acknowledge I feel it is important to share that although I have used this company for almost 40 years (since I built my home); Williams continues to provide the best, most reliable, professional service. I have never once been let down. They continue to prove why they are the best in the business. I want to also specifically mention the gentlemen I have had come to do my yearly maintenance cleaning/ tune up / check the past two seasons. His name is Marcellus, and he is OUTSTANDING!!! While all my other visits in the past have been great from other technicians, I just found Marcellus went the extra mile. His pleasant demeanor, smile, knowledge and professionalism is a reflection of a happy hard worker who takes pride in his work and wants the customer to be satisfied!! I applaud Williams for having him as a tech and hope that they recognize him as such! Thank you, Williams Energy, for taking such great care of my home!

Williams energy just installed central Air to our house. It was a challenging job because of the room layout. They did a great job hiding all the all the necessary pipes. The were able to install splits and central air and also keep our furnace for backup heat. Fair price and they took care of all the state rebates. Total professional job

Williams has and always will be my “go to” for a range of issues in my home, including pipe leaks to furnace malfunctions or stuffed up sinks, they are always dependable for any job! Polite efficient and responsive, they’ve helped me for over 20 years, I don’t know what I would do without them!!

Had Ian P. here today from Williams Energy for my yearly furnace check up. He was very professional and informative and a pleasure to have him service my furnace. Karen.S

They were very professional. After switching to hybrid heat pump, we have noticed a huge savings in our utilities. We're very happy with the service and highly recommend!

Been a customer for years ; on the hottest day of the year our very old A/C went down; although obviously very busy a tech ( Josh ) came out THAT DAY and got the A/C working; although it seemed to blow only hot air. I called Williams late that afternoon to let them know that although the condenser was spinning it seemed to only blow hot air. A women (Kelly ) spent a half hour with me on the phone trying to fix the problem. Late last night the A/C seemed to have recharged and it cooled down. Williams was great! I never post and never review, but I highly recommend Williams; thank you Williams

I own a 3 family rental and I am very happy with Williams Energy for all my heating repairs as well as plumbing repairs! I have used other plumbing companies before Williams Energy and they either didn't do the job correctly by cutting corners or their costs were extremely high. Very happy and satisfied with Williams Energy's response time, professionalism, knowledge and costs! I will spread the word if anyone needs a heating system repair, plumbing or electrical work done. The customer service people are always very friendly and such a pleasure to talk to as well. Thank you again Williams Energy for all that you do! You all are the best!

Have been a customer with Williams for 30 years..never disappointed with any part of their service. And I am so glad that they offer electrician and plumbing services as well. It feels great to part of their customer "family."
Hat's off to Tod McViney for being a solid and knowledgeable furnace expert. Haven't met a better one. Truly.

Heat went out. Williams sent someone within a few hours. Patrick was great. Fixed everything and answered all our questions clearly. Highly recommend

The plumbing work was completed today by Chad and Brian. Excellent service. We appreciated that they kept us informed regarding the problem and the work that needed to be done.

We have used Williams Energy now for about 10 years both at our home and working together on a professional level. At The Chimney Chap, we’ve had the pleasure of working closely with Williams Energy on many projects over the years, and we couldn’t ask for a better partner. Their entire team is professional, responsive, and a true pleasure to work with. Whether it's coordinating installs, service calls, or customer support, Williams Energy consistently goes above and beyond.
It’s clear that they care deeply about their customers and the quality of their work — values that align perfectly with ours. We’re proud to partner with a company that brings such integrity and excellence to everything they do. Highly recommend Williams Energy to anyone looking for a reliable and trustworthy energy provider!

Todd made my experience of dealing with oil heat for the 1st time easy. He was professional yet kind and considerate. He makes me happy that I chose Williams.

Worse company out there.
I called for propane delivery on 11/4/25, a few days passed, nothing was delivered. I called back; they told me it takes 5-7 business days. I called again on 11/17/25, they told me it's 7-10 business days. As of 11/20/25, still no propane delivery. I'm not too good at math, I hope some of the readers can help me can help me figure how many days it's been now.
Save yourself the trouble, just don't call that company. Also, don't push it, take it as a sign when you have to call that company multiple times for service before you get someone on the line.

We would like to take a moment to recognize Williams Energy for their excellent service, professionalism, and attention to detail. We recently had a big issue with our home boiler. Others had written it off as a lost cause and advised to replace the entire system, which was incredibly frustrating. Their technician Shaun came out and took the time to listen to our concerns. He went over all the previous work and was able to identify and correct the issue. Everything works great now! It saved us the time and the expense of a total overhaul.

We would totally recommend William Energy - thank you to Shaun!