Diamond Green Energy Ltd vs M&R Plumbing & Heating Ltd: most-reported complaints compared
Most-reported issues at Diamond Green Energy Ltd and M&R Plumbing & Heating Ltd, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.
Diamond Green Energy Ltd
TrustScore 4.9 · 2,712 reviews on Trustpilot.
242 reviews analysed, 2017-07-29 to 2026-09-01.
Complaint rate (recent window): 1%
100% of negative reviews get a company reply.
“His manner was gruff at best and I was not happy to have him in my home”
M&R Plumbing & Heating Ltd
TrustScore 4.9 · 793 reviews on Trustpilot.
217 reviews analysed, 2023-12-04 to 2026-09-18.
Complaint rate (recent window): 1%
100% of negative reviews get a company reply.
“Paid off my bill but was still hassled about the original call out”
Reported on both
Issues with an evidenced category (at least two verbatim quotes) on both sides.
| Issue | Diamond Green Energy Ltd | M&R Plumbing & Heating Ltd |
|---|---|---|
| Missed appointments | 22% | 38% |
| Support unreachable | 9% | 25% |
Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, Diamond Green Energy Ltd or M&R Plumbing & Heating Ltd.