Endless Energy
Plumber · Marlborough, MA · Open 24 hours per Google listing
Our verdict
4.7★ across 593 reviews; reviewConsistency=0.36 — sample includes a 1-star furnace repair that wasn't fixed after two visits, alongside strong 5-star accounts for heat pump service.
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 ↗
Advertises 24-hour service on its Google profile — no reviews we analyzed mention after-hours response either way.
Only 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
Duct cleaning + sealing improved one customer's system capacity from 65% to 95% — dramatic, measurable result cited in a 5-star review
1 cited review
“They came to our home to do both duct cleaning and duct sealing, and we were honestly shocked by the amount of buildup they showed us in the ducts from the previous owners. Our system's capacity improved from 65% to 95%—an astronomical improvement.”
CEO follow-up call cited by 1 reviewer; technician diagnosed and fixed an unrelated heating issue at no charge during initial audit visit
Cited in 1 of the 5 reviews we analyzed.
What reviewers report — the concerns
Other directories bury these. We think you should read them before you call. Every concern below comes from the reviews it cites.
Red flag
Repeat-visit failure on furnace: initial Jan 17 repair didn't hold; Feb 16 tech recommended full replacement after 2 hours — customer left mid-winter without resolution
“A different technician arrived around 10:00 AM on February 16. After approximately two hours of work, around 12:00 PM, he informed me that the furnac”
Furnace repair incomplete after 2 visits — 2nd technician told customer to replace the furnace; customer left without heat in February; 1-star review filed
“A different technician arrived around 10:00 AM on February 16. After approximately two hours of work, around 12:00 PM, he informed me that the furnac”
Keep it in proportion: these concerns are cited in 1 of the 5 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“Update to my original review: I had an initial repair performed on January 17, and at the time the furnace appeared to be functioning properly. The furnace began operating inconsistently again in early February. I called the company on February 12 to schedule a follow-up appointment. On the evening of February 15 — the night before the scheduled visit — the furnace was still running, although it was taking a long …”
Positive
“Garrett did an excellent job servicing our heat pump. He was extremely knowledgeable and took the time to explain everything clearly, making sure I understood what was going on and what to expect moving forward. His professionalism and attention to detail really stood out. It’s refreshing to work with someone who not only knows their craft but is also great at communicating it. Highly recommend Garrett for anyone …”
“Garrett came to service our heat pump that wasn't working. He quickly and efficiently diagnosed that the breaker was not giving off any power to the system. He was extremely thorough, professional, knowledgeable and one of the most pleasant people I have ever had service my home. Saying we are satisfied would be an understatement. Garrett is excellent at his job!”
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 593 reviews so far. Treat this as a first read.
Newest review in our sample: Mar 2026.
Should you hire Endless Energy?
Hire if
- You need clear communication and upfront explanations
- 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 airtight scheduling and guaranteed arrival times
Look elsewhere if
- You're highly price-sensitive
Advice derived from the review analysis above — how we decide.
Own Endless Energy?
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
Endless Energyisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Worcester · Auburn · Devens · Leominster