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Cassidy Plumbing & Heating

About us

Cassidy Plumbing and Heating has been servicing the greater Boston area for over 25 years. As a Master Plumber, Don Cassidy has built a strong customer base through his attention to detail and his commitment to customer satisfaction. At Cassidy Plumbing and Heating, our business philosophy is simple: To be on time, neat and clean, get an understanding of all of the customers needs before any work begins, and to complete the job to the customer's satisfaction.

Business highlights

Emergency services offered
36 years of experience

Services we offer

Boilers, Drain Cleaning, Gas Fitting, Heating, Kitchen & Bathroom Remodeling, Plumbing, Sump Pumps, Water & Sewer Mains, Water Heaters, and Whole House Generators.

Amenities

Emergency Services

Yes

Free Estimates

Yes

Reviews
4.617 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
76%
4
18%
3
0%
2
0%
1
6%
Showing 1-17 of 17 reviews
Diane M.
Feb 2025
5.0
Yes, I recommend this pro
Don Cassidy and his team do outstanding work. He is an expert problem solver with a depth of experience, and is extremely dependable and honest. My steam heat system was not working properly and different contractors were unable to fix the problem. He observed the situation and shared his incredible knowledge of the science behind how the system should work and where and what was causing the breakdown. He made the right repairs and gave me peace of mind in knowing a true professional was taking care of system. Highly recommend Don and his team!

Stephanie G.
Dec 2017
5.0
Yes, I recommend this pro
Our boiler was failing and Donald Cassidy provided a detailed quote for the replacement, answered all our questions, explained process and completed the work efficiently.

MATTHEW P.
Feb 2015
5.0
Yes, I recommend this pro
They were prompt, courteous and did a great job.

Charles S.
Sep 2014
5.0
Yes, I recommend this pro
$1,625
Don and Steve did a great job installing a new hot water heater and disposing of the old one.  Two days later, by chance, my sewer line backed up and Don came first thing the next day (a Sunday!) to root it out and reseal it--even running out to Home Depot to get the part for me as I was without a car that day.  Exceptional service!  I highly recommend.  Thank you.

Stephanie G.
Apr 2014
5.0
Yes, I recommend this pro
$2,000
Donald Cassidy is just great to work with.  He and his assistant, Steve do superior work.  They are super friendly and responsive.  They provide  prompt service and expert guidance on our options for repairs and upgrades to the various systems in our home. 
Excellent speedy work. Fair pricing. 

Dave M.
Jan 2011
4.0
Yes, I recommend this pro
$200
It was 1 degree out, our gas furnace pilot was out, and I couldn't get it lit. We actually had a contract with the gas company's service people, but the account got messed up, and by the time that got straightened out, we were at the end of a huge line of people with heat problems, and could only get the next day. Temperature in the house was dropping, and we needed to do something to keep the pipes from freezing. I found Cassidy on the net, and picked them because they're a few streets over from us, and I thought we had a better chance of someone close coming on such a busy day, and I was right. He told me they'd be over after they finished up where they were, estimated an hour and a half, and said he'd call when he was on his way over. He did exactly that, and showed up right when he said he would, 6:30PM or so. He told me the best shot was to replace the thermocouple, at a cost of $200, and if that didn't turn out to be the problem, he wouldn't charge us. It was the best choice we had available, and a fair if-it's-not-the-problem arrangement. The price seemed high, but getting it fixed was a priority. It worked, furnace lit right up and stayed on, and that was great. Afterwords, I looked around on the net to get a sense of the fairness of the price. It's a $10 part, which you can't replace yourself because of the danger of gas leaks, and everyone says you should expect to pay way more than that to have it installed, but they were talking in the range of $100-150, not the $200 we paid. This is an expensive part of the country, short notice late on a very busy day, for work we really needed done, so I don't feel *that* bad about it, but the price was pretty high.

PAUL O.
Feb 2007
4.0
Yes, I recommend this pro
$700
GOOD RESPONSE TIME. OPENED A WALL TO FIX THE PROBLEM.

Robin B.
Oct 2005
5.0
Yes, I recommend this pro
$300
DON RETURNED ALL CALLS ON TIME AND SHOWED UP FOR BOTH THE ESTIMATE AND APPOINTMENT EARLY. HE WAS FRIENDLY, PATIENT, PROFESSIONAL, AND FULLY COMPETENT. EVEN THOUGH THIS WAS A SMALL JOB, HE WAS HAPPY TO DO IT AND NEVER GAVE THE IMPRESSION THAT HE WOULD RATHER BE DOING A MAJOR ($$$) PROJECT INSTEAD.

RICK F.
Dec 2003
5.0
Yes, I recommend this pro
$225
HE WAS VERY THOROUGH AND EXPLAINED THINGS REALLY WELL TO ME. HE TOOK HIS TIME AND GAVE ME GOOD RECOMMENDATIONS FOR FUTURE CARE.

DIANE B.
Aug 2003
5.0
Yes, I recommend this pro
$23,000
unknown

CAROLYN W.
Dec 2002
4.0
Yes, I recommend this pro
$450
THEY WERE VERY RESPONSIVE AND PROMPT, BUT I THOUGHT THEY CHARGED WAY TOO MUCH FOR A JOB THAT TOOK LESS THAN TWO HOURS TO COMPLETE. I USED THEM BECAUSE IT WAS AN EMERGENCY (COLD WEATHER SO I NEEDED HEAT, CARBON MONOXIDE RISK) BUT WOULD HAVE PREFERRED TO SHOP AROUND FOR LOWER PRICE.

PHILIP S.
Aug 2002
5.0
Yes, I recommend this pro
$950
HIS PLUMBING WORK WAS GOOD. HE CUT A WHOLE IN CABINET TO INSTALL NEW PIPE AND IT WAS VERY SLOPPY. OTHERWISE HE DID A GOOD JOB AND EVERYTHING IS FINE.

MARGARET K.
Jul 2002
5.0
Yes, I recommend this pro
THEY DO VERY GOOD WORK.

PHILIP S.
Dec 2001
5.0
Yes, I recommend this pro
$160
THE PRICE CHARGED FOR WORK DONE SEEMED HIGH, BUT I DID NOT SHOP AROUND, AND HAVE NO BASIS FOR COMPARISON. ALSO, HE BILLS BY THE JOB AND DOES NOT BREAK OUT LABOR AND MATERIALS, FURTHER CONFUSING THE ISSUE.

VERONICA M.
Nov 2001
1.0
$65
AS TO PROFESSIONALISM, IF IT IS LIMITED TO CLEANLINESS AND COURTESY, THEY WERE TIDY AND USED POLITE LANGUAGE. HOWEVER, I THINK THEY THOUGHT I WAS AN ARROGANT FEMALE, WHEREAS I FEEL I WAS RIGHT TO BE CONCERNED ABOUT NOT HAVING WORKING TOILET, WANTING MY PHONE CALLS RETURNED PROMPTLY, AND MOST IMPORTANT OF ALL, NOT WANTING THEIR SPURIOUS STORY ABOUT HAVING TO SPECIAL ORDER THE PART, AND THEN NEVER GETTING BACK TO ME, DESPITE MORE PHONE CALLS. I THINK THAT IS ABSOLUTELY INEXCUSABLE. IF THEY DON''T WANT MY BUSINESS, THEY SHOULD JUST SAY SO IMMEDIATELY TO FREE ME UP TO LOOK ELSEWHERE.

LINDA O.
Aug 2001
5.0
Yes, I recommend this pro
$3,000
DON IS SUCH A GREAT PROFESSIONAL TO DEAL WITH. HE'S INTERESTED IN REPEAT BUSINESS; THEREFORE, HE'S HONEST AND UP FRONT. HE'S NOT CHEAP BUT HE'S THE FIRST TO ADMIT THAT: YOU GET WHAT YOU PAY FOR. DON TOLD US THAT WE NEEDED TO REPLACE OUR PIPES BUT SAID WE COULD WAIT A FEW YEARS TO DO IT. HE EVEN QUOTED US A PRICE IN 1998 THAT HE PRETTY MUCH STUCK TO WHEN WE FINALLY HAD HIM DO THE EXTENSIVE WORK IN 2001. HE'S CLEAN, PUNCTUAL, FUNNY, AND PROUD OF HIS WORK. FOR ALL FUTURE PLUMBING PROBLEMS, WE'LL BE CALLING OUR PLUMBER, DON CASSIDY.

LINDA O.
May 2001
5.0
Yes, I recommend this pro
MORE EXPENSIVE, BUT GET WHAT YOU PAY FOR. HE IS VERY HONEST, FUNNY, AND NICE. SMALL COMPANY; LIKES BIG JOBS.

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Cassidy Plumbing & Heating is currently rated 4.6 overall out of 5.

Yes, Cassidy Plumbing & Heating offers free project estimates.

No, Cassidy Plumbing & Heating does not offer eco-friendly accreditations.

No, Cassidy Plumbing & Heating does not offer a senior discount.

Yes, Cassidy Plumbing & Heating offers emergency services.

No, Cassidy Plumbing & Heating does not offer warranties.