Caswell Plumbing and Heating
Plumber · Marlborough, MA
Our verdict
4.8★ across 59 reviews; 5 of 5 sampled are 5-star — boiler replaced same day including pipe code upgrades, leaky water heater swapped Sunday 3pm-6pm at competitive price.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 5 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
Only 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
Water heater replaced same Sunday it failed — called at 3pm, done by 6pm, at a competitive price
1 cited review
“We called on Sunday at 3pm and our leaky water heater was replaced and done by 6pm at a competitive price. Fast, friendly and outstanding service!”
After-hours emergency response confirmed in 2 of 5 reviews — addressed backup after business hours, helped during cold-weather pipe emergency
1 cited review
“Tim was awesome - found him on Google and he came to help me out of an after-hours jam related to the cold weather, even connecting me to some of his non-plumbing colleagues for additional help I needed.”
Cited in 2 of the 5 reviews we analyzed — 1 cited review not excerpted here.
Boiler replacement completed same day — including pipe upgrades to meet current code; no callback required
1 cited review
“My boiler failed on me and Tim & Julio saved the day. They're very knowledgeable & polite, and talked through everything in depth without overdoing it. They were able to complete the job same day- including some pipe replacements to bring them up to code.”
What reviewers report — the concerns
We looked for patterns of complaints in the 5reviews we analyzed and didn't find any. That's rare — but it's a reading of published reviews, not a guarantee.
The evidence — in reviewers' own words
Positive
“We had an excellent experience with Caswell Plumbing! We called on Sunday at 3pm and our leaky water heater was replaced and done by 6pm at a competitive price. Fast, friendly and outstanding service! This was our first time using Caswell and we will be sure to use them again! We are very happy customers!”
“I was looking for a responsive plumbing and heating technician to take over maintenance of a multi-family home. Tim has already made several visits to diagnose some issues, plan some repairs, and even address a backup that occurred after hours. I look forward to having him continue to service this property and would recommend him to any residential or multi-family property owners looking for a responsive, …”
Quotes are reproduced verbatim from public reviews on the platforms shown; we select which to feature, and selection reflects our editorial judgment. Report a quote that doesn't match its source ↗
The rating picture
Small sample — we've analyzed only 5 of 59 reviews so far. Treat this as a first read.
Newest review in our sample: Feb 2026.
Should you hire Caswell Plumbing and Heating?
Best for
- Emergency and same-day calls
- Budget-conscious homeowners
- Complex installs and remodels
- Water heater install/repair
Hire if
- You need a plumber who actually shows up when scheduled
- You need high-quality work that holds up over time
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need detailed walkthroughs and written estimates before work starts
Advice derived from the review analysis above — how we decide.
Own Caswell Plumbing and Heating?
You can respond to our analysis, correct business facts, or dispute the accuracy of a quoted review. Responses that check out get published on this page, and factual errors get corrected — see our corrections policy. We don't remove accurate quotes, but we'll re-run your assessment as your reviews change.
Find plumbers near you
Caswell Plumbing and Heatingisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Norfolk · Bellingham · Somerville · Devens