Owner-run since 2016 · Milford, MassachusettsMonday–Friday, 8:00 AM–5:00 PM   (508) 361-9450

Cornerstone Plumbing reviews

Cornerstone Plumbing in Milford, Massachusetts is rated 4.9 on Google from 83 reviews (October 2026) and is BBB accredited with an A+ rating. Customers most often mention a fast callback, an honest diagnosis without upselling, clear explanations and a clean job, and many name Brandon and his technicians directly.

“I had what sounded like a leak in my wall. I had had another plumber come previously who wanted to cut the wall open, Tyler came took his time and really leaned into the diagnostic part of his visit. He solved the problem without having to cut into my wall.”

Kristen H. · Google review, 2026

“Brandon was the only plumber to reply to me after our first emergency and his responsiveness and clear explanation of the problem I was having and how he was going to fix it made him and his team my go-to plumber for anything.”

Emily B. · Google review

“The technician Brandon M. explained the issue clearly and fixed it efficiently without trying to upsell unnecessary services. Pricing was fair and transparent.”

Leo R. · Google review, 2026

“Brandon answered my call on a Saturday morning and had one of his service techs Tyler at my house within a half hour to swap out my water heater.”

Jake H. · Google review

“We had just received an over the top quote and called Cornerstone and they beat it by a lot! Incredible service and taught us a lot about maintaining and getting the most out of our water heater.”

Michelle C. · Google review

“They came out first thing the next morning, quickly identified the failed line, and repaired it efficiently. Within just a few hours, we were back up and running with hot water.”

Therese P. · Google review, 2026

“I had a leak from an unknown source. Tyler checked out a few rooms, opened up a closet wall, and found the unlikely source of the leak. The pipe was replaced the same afternoon.”

Derek L. · Google review, 2026

“We luckily were able to simply replace the outdoor spigot and avoid any repairs indoors. Having a company we can trust to not pull one over on us is very reassuring and I will be using them again if any other issues arise.”

Chris · Google review, 2026

“Brandon replaced my conventional boiler and hot water tank with a new tankless system, and also repaired my pressure reducer on the main line.”

Rich C. · Google review

“Brandon is great. He replaced my boiler in two days start to finish. His plumbing work is amazing. Everything is nice and clean.”

Kurt P. · Google review

“Cornerstone helped me out big time, unforseen repairs on our boiler and a few extra requests in the middle of winter. Heat is back on and kids are still sleeping 👍👍 thank you Cornerstone and thanks Tyler!”

Kevin H. · Google review

“Tyler installed my combi boiler and so with professionalism and explained the whole procces. Any time I have an issue they are fast to respond and help.”

Adam A. · Google review, 2026

“I felt kinda hopeless like wow this is a major kitchen clog. It took getting the big industrial snake to unclog the pipe. Josh was totally transparent about the clog and we appreciated his efforts.”

Alana F. · Google review, 2026

“We had a clogged shower drain, valves for our washer machine lines needed to be replaced, and our dryer needed to be vented out. Josh got everything done in a timely manner, quality work, and was very professional.”

Brandon A. · Google review, 2026

“They communicated everything they were doing and looking for, they had our kitchen sink diagnosed and fixed quickly and efficiently!”

Erika E. · Google review

“They installed and connected our dishwasher, fridge, and oven quickly and professionally. Reasonably priced service and super responsive team. And they cleaned up the area wonderfully before leaving.”

Jay B. · Google review

“Brandon and his team were the most responsive during a once in a generation December monsoon that hit New England. Absolutely saved my home from what could've been foundation destruction.”

Parker · BBB customer review, Dec 2023

“He fit me in next day which is practically unheard of.”

Susan M. · BBB customer review, Jul 2026

“His communication was clear and super professional throughout the whole process, and very responsive too.”

Will N. · BBB customer review, Feb 2026

Read all reviews on Google ↗View BBB profile ↗

Tell us what’s happening.

Send the details below and Brandon will get back to you. In a hurry? Call, Monday–Friday, 8:00 AM–5:00 PM.

Call (508) 361-9450
What's going on?
How soon do you need someone?
I'm a
Best way to reach you

Prefer to talk? Call (508) 361-9450

Your details are only used to reply to this request. Privacy