Warmworks: most-reported complaints
Automated analysis of 271 public Trustpilot reviews published 2025-04-03 to 2026-09-20. TrustScore 4.8 from 4,323 total reviews — see the Trustpilot page. Quick answer: is Warmworks legit? Issues below reflect what reviewers reported, not findings of wrongdoing.
Reviewers most often report issues with poor core service, citing examples such as installing heating systems incompatible with showers. Unhelpful support is another frequent complaint, with reports indicating that the company refused to rectify problems. Faulty products were also identified as a significant concern by customers.
How to reach Warmworks
These are the contact details Warmworks publishes on its Trustpilot profile, as of our last check on 2026-09-24 — phone 0800 011 6189, email [email protected], address 1 Carmichael Place, Edinburgh, EH6 5PH, GB.
The company claimed its Trustpilot profile on 2016-07-05, uses Trustpilot’s paid features, uses Trustpilot’s AI-assisted replies, and last replied to a negative review on 2026-09-15. Trustpilot ranks it 14 of 42 in Energy Equipment and Solutions. We last checked this profile on 2026-09-24 and found 0 new reviews. These are facts Trustpilot publishes about the profile, as of our last harvest.
Forum footprint: 2 MoneySavingExpert forum discussions mention this company (browse). Roughly 0 of the top, relevance-sorted search results were posted in the last 90 days — an approximate figure by construction, not a true recency count. Recent thread titles: “Home Energy Scotland / Warmworks Pensioner Boiler Grant Cost”, “what kind of house do I have?”.
Elsewhere: 3.1★ on Google (97 reviews) — a 1.7-star gap between its Trustpilot and Google scores.
TrustScore over time
4.8 → 4.8 across 7 census measurements since 2026-08-11. Our own record, independent of Trustpilot’s display.
Reply behaviour over time
Solid: % of negative reviews replied to. Dashed: typical days to reply. Both as reported on this company’s Trustpilot profile, recorded whenever our census re-checked it and a figure had changed — the gaps between points are not equal: 2026-08-11 (90%, 8.3d) · 2026-08-14 (95%, 8.8d) · 2026-08-21 (95%, 8.8d) · 2026-08-27 (90%, 8.8d) · 2026-09-11 (89%, 6.8d) · 2026-09-14 (85%, 6.8d) · 2026-09-21 (95%, 7.3d).
Severity: 34% of this company’s 70 graded complaints were classified as severe (money lost, an essential service cut off, or a problem unresolved for months). See the harm index.
1★ share of negative reviews over time
Share of 1–3★ Trustpilot reviews that were 1★
In March 2023, 86% of 14 one-to-three-star reviews were 1★; in April 2025, 27% of 11.
Counted from March 2023 onward — the period for which our capture of 1★, 2★ and 3★ reviews is complete for all three. Months with fewer than 10 such reviews are omitted.
Reviewers here waited a median of 6.1 days between the experience and publishing their negative review (306 reviews record both dates).
What their policy promises
complaint process: resolve all complaints
“We seek to resolve all complaints about how we handle personal information”
delivery promise: within one month
“If you make a request, we will, other than in exceptional circumstances, respond to you within one month.”
Quoted verbatim from the company’s own published policy (source page); complaint counts are census classifications. As of 2026-09-12.
Policy-page monitoring
We monitor this company’s published policy page for changes. No changes have been detected since we started watching on 2026-09-01.
Automated change detection on the company’s own published policy page — a record of when the page changed, not a judgement on what changed.
Measured reply time: across 300 negative reviews that received a public reply, the median wait was 5.3 days — the company profile reports an average of 7 days. The two are measured differently: ours counts only replies we captured to negative reviews.
Reply quality: of 300 company replies to negative reviews analysed, 35% engaged with the specific problem and 54% were generic templates.
13% of its 182 recent 5★ reviews came from accounts that had written only that one review when we captured it (the median across companies is about 39%). A high share is a reason to look closer, not evidence of fake reviews.
Sector benchmark: poor core service makes up 27% of this company’s complaints vs a 21% median across 34 ranked companies in its sector.
Review velocity: 999 of this company’s 4,323 Trustpilot reviews (23%) were written in the last 12 months.
What are the most common complaints about Warmworks?
Poor core service
19 reports · 27% of complaintssteady“replacing the old central heating system with a new one that is not compatible with a shower”
The company replied on 2025-05-12: “Hello, Thank you for taking the team to leave us this review. I'm very sorry to hear that you were disappointed with your experience with us. I understand that the customer service team have been in…”
Our classifier read this reply as a template response.
2 readers marked this review helpful on Trustpilot.
“my attempts at chasing them up are being ignored!”
The company replied on 2025-10-01: “Good afternoon David, Thank you for taking the time to leave us this review. I am very sorry to hear that you were disappointed in your experience with us. I have passed your concerns on to our…”
Our classifier read this reply as a substantive response.
It promised: to escalate.
1 reader marked this review helpful on Trustpilot.
“My house got flooded”
The company replied on 2025-07-28: “Good afternoon Francis. Thank you for taking the time to leave us this review. I'm very sorry to hear that you have had such a difficult experience. I understand that our Feedback and Insights team…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
Support unhelpful
19 reports · 27% of complaintsrising since 2026-04“Refused to rectify.”
2 readers marked this review helpful on Trustpilot.
“replacing the old central heating system with a new one that is not compatible with a shower”
The company replied on 2025-05-12: “Hello, Thank you for taking the team to leave us this review. I'm very sorry to hear that you were disappointed with your experience with us. I understand that the customer service team have been in…”
Our classifier read this reply as a template response.
2 readers marked this review helpful on Trustpilot.
“leaks mess damage. Warmworks took no responsibility for any of it even with photo evidence”
The company replied on 2025-07-14: “Hi Paul, Thank you for taking the time to leave us this review. I'm very sorry to hear that you were disappointed with your experience with us. I understand that our customer experience team have…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
Faulty product
16 reports · 23% of complaintssteady“Refused to rectify.”
2 readers marked this review helpful on Trustpilot.
“leaks mess damage. Warmworks took no responsibility for any of it even with photo evidence”
The company replied on 2025-07-14: “Hi Paul, Thank you for taking the time to leave us this review. I'm very sorry to hear that you were disappointed with your experience with us. I understand that our customer experience team have…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
“my electric is now double,my bill before was around £ 68 per month, now first month £ 147”
1 reader marked this review helpful on Trustpilot.
Other
14 reports · 20% of complaintssteady“After 18 months of worry and frustration you failed me.”
The company replied on 2025-07-02: “Good afternoon Mr Hannah, Thank you for your review. We am very sorry to hear that this has been your experience with Warmworks. A member of our customer experience team will reach out to you shortly…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
“This organisation has wasted far too much of my time already.”
The company replied on 2025-06-30: “Thank you for your review. Your feedback is very important to us and we appreciate that you took the time to speak with our customer experience team to discuss this further. Please allow me to…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
“No response. I chase a response, there is no further response.”
Not as described
9 reports · 13% of complaintsfalling“we have finish our work and demolish it again in order to make changes they offer /advice”
The company replied on 2025-08-01: “Good afternoon Radek, thank you for taking the time to leave a review. I'm very sorry to hear that you were disappointed with your experience with us. Unfortunately, we are not able to offer measures…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
“Why were the recommended insulation measures not installed?”
The company replied on 2025-04-17: “Hi Grant, Thank you for taking the team to leave us this review. I'm sorry to hear that you were disappointed with service you've received, as this certainly isn't in line with our usual standards. I…”
Our classifier read this reply as a template response.
1 reader marked this review helpful on Trustpilot.
“All of the worked carried out was not as promised or claimed”
The company replied on 2026-03-30: “Hello, We're sorry to hear that you have any unresolved concerns with your application. I can see that you're currently in contact with a member of the team to ensure that any questions you have are…”
Our classifier read this reply as a template response.
Support unreachable
8 reports · 11% of complaintsrising since 2026-04“my attempts at chasing them up are being ignored!”
The company replied on 2025-10-01: “Good afternoon David, Thank you for taking the time to leave us this review. I am very sorry to hear that you were disappointed in your experience with us. I have passed your concerns on to our…”
Our classifier read this reply as a substantive response.
It promised: to escalate.
1 reader marked this review helpful on Trustpilot.
“No response. I chase a response, there is no further response.”
“I am now having to pay another company £1,150 to replace the roof insulation boards.”
The company replied on 2026-02-16: “Dear Mrs. Irvine, Thank you for taking the time to leave us this review. We're sorry to hear that you that you have any unresolved questions about the work that was offered to be completed. A member…”
Our classifier read this reply as a template response.
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. Trends are computed from dated review counts only. Negative reviews are deliberately over-sampled for evidence depth; headline percentages use an unbiased recent sample only. Report updated 2026-09-21.