The engineer Darren seemed to have done a good job in servicing the boiler. It hasn't been serviced for a while and he reported any issues with the boiler which may be of concern. I was happy wit... See more
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Review summary
Based on reviews, created with AI
What people talk about most
Based on these reviews
Highly recommend. Outstanding service and helpfulness from Rafal. Boiler failed in Christmas cold snap (-5C) and Rafal went out of his way doing everything possible to fix it, even staying til 8pm, an... See more
Moving Gas Pipe Only done today so can't comment on longevity but repair seems good. Prompt reply and works carried out within a week of calling. Decent text service to give you notice on when the... See more
Company replied
JAR MECHANICAL gave me superlative service . They were prompt in their response to my urgent requirement of my boiler needing to be fixed . The engineer came on time , was polite , took care of the re... See more
Company replied
Company details
Written by the company
JAR was founded by engineers with a real passion for the industry, having witnessed the shortcomings of the sector and the need for better client business relations. We pride ourselves in working directly with our clients to create bespoke heating systems tailored specifically to the their needs. We also provide breakdown, service or repair response whether on planned or reactive basis to all aspects of mechanical, gas and plumbing assets within your premises. Additionally we also offer a new build and refurbishment end to end project management service. We hold a strong belief that a successful business in this industry must have transparency and communication as one of its core values and therefore we can offer our clients a personal account manager who can liaise directly with you to ensure the best service is delivered and targets fulfilled. Our engineers have over 50 years experience in the industry working in all settings, be it domestic, commercial or industrial, visit our projects page to see some examples of our work. We are available 24/7 offering our services in and around the M25 and surrounding counties. If you would like to find out if we cover your area please contact us directly.
Contact info
3rd Floor 86-90 Paul Street, EC2A 4NE, LONDON, United Kingdom
- 07710652877
- info@jarmechanical.co.uk
- jarmechanical.co.uk
3.5
Average
58 reviews
Replied to 23% of negative reviews
Typically replies within 1 week
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Gas hob installation
Engineer (Chris) booked for a gas hob installation. There were some problems he could not have foreseen which he dealt with efficiently and professionally. Clearly knew his stuff. Cost was reasonable and as quoted, so I would use JAR again. Happy customer.
16 April 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Andrew,
Thank you so much for your kind review and for choosing JAR Mechanical for your gas hob installation.
We are pleased to hear that Chris was able to handle the unforeseen challenges efficiently and professionally. We pride ourselves on our team's expertise and our commitment to providing fair, transparent pricing, so it is wonderful to know you were happy with the service and the final cost.
We appreciate your feedback and look forward to working with you again in the future.
Best regards,
JAR Mechanical Team
AVOID AVOID AVOID
AVOID AVOID AVOID
My initial enquiry was made to “Poplar Plumbing,” which appears to have been redirected to JAR Mechanical. That is misleading -- the company is presenting itself as a local provider when it is not.
I instructed JAR to attend on Friday 30 January 2026 to: (a) replace an extractor fan; (b) check that radiators were functioning; and (c) resolve drainage issues affecting a bathtub and sink.
Their engineer wasn't able to complete the job because he had attended without the necessary equipment (a long snake drain, which I would expect to be in a plumber's toolkit in any event). They then invoiced me £342.00.
I was told that a return visit could take place the following day if I paid the invoice and a further £485.00. They refused to explain this figure, even though the only outstanding issue was a blocked drain. After I challenged this, the price was reduced to £90 + VAT.
After I left a negative review on Trustpilot, they threatened me that they would not return to complete the work unless I removed it. That was completely inappropriate.
I was desperate to get the bath draining, so I paid the invoice and deleted the review. Their engineer failed to show up as arranged on Saturday morning, and I was unable to contact anyone at the company by telephone or email so had to wait around at home until I gave up.
When an engineer eventually attended, he remained for less than an hour and showed me photographs of some hair removed from the drain. I confirmed by email that it looked as if the bath was draining normally. However, within a week, the bathtub was again not draining, indicating that the issue was not properly resolved.
As a result, I now need to instruct another plumber to complete the work. Meanwhile, JAR Mechanical are harassing me for payment of their £90 + VAT bill even though they didn't finish the job properly.
AVOID AT ALL COSTS
30 January 2026
Unprompted review
We needed leaky pipework replaced as…
We needed leaky pipework replaced as part of making a house safe for an elderly relative to allow her to return home from hospital. JAR came up with a quick an efficient solution and were very appreciative of our predicament. They provided a very friendly and professional service.
5 March 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Gavin,
Thank you so much for your kind review. We were very happy to help replace the leaky pipework and ensure the house was safe for your relative’s return from the hospital.
At JAR Mechanical, we understand how important these situations are, and we are glad we could provide a quick, professional solution during such a critical time. We truly appreciate your feedback and wish your relative a smooth recovery at home.
Best regards,
JAR Mechanical
£6,000 quote for a leak fixed by a different company on the same day for £150
Rafal attended my property to assess a leak on one of the radiator valves I had identified. No repair was carried out during the visit, but I was charged £114 for providing a quote. I did not request a boiler service unless it was directly related to the leak, which is reflected in the recording.
The quote provided by Rafal to resolve the issue was £5,000–£6,000.
I subsequently had the same leak repaired by a different company on the same day for under £150. The issue was straightforward and could have been resolved during the initial visit.
Rafal later suggested I find another engineer, noting that they would likely provide a different quote. The issue was then resolved for £150, compared to the £5,000–£6,000 "estimate" provided by Rafal.
It is also worth noting that a boiler service should not typically be carried out when there is a known leak.
I would avoid.
26 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Chas Kirby,
Thank you for your feedback regarding your experience with JAR Mechanical. We regret to hear that you were dissatisfied with our service and pricing.
To clarify, the invoice issued reflects the fixed price for the boiler service originally requested. We have a call recording confirming this booking and have not charged you for the additional time spent investigating the pressure loss.
Following our inspection, we provided a quote for the recommended repairs. The decision to proceed with these works is entirely at your discretion, and we support our clients in seeking alternative estimates if they prefer.
While we appreciate your input, we maintain that the charges for the services rendered are fair and accurate. We believe your comments regarding our conduct are unjustified and find such feedback unreasonable.
Regards,
JAR Mechanical
AVOID this engineer
AVOID this engineer. I regret ever finding him online. Find someone honest, capable, ethical.
13 February 2026
Unprompted review
Very quick and easy
Very quick and easy, Rafal was very useful and helpful. All in all great and smooth experience.
16 February 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Lily,
Thank you for your kind review! We are so pleased to hear that you had a great and smooth experience with us.
I will be sure to pass your positive feedback along to Rafal, who will be delighted to know he was helpful and made the process easy for you.
We appreciate your business and look forward to working with you again in the future.
Best regards,
JAR Mechanical
Very courteous and efficient in dealing…
Very courteous and efficient in dealing with the removal of 2 commercial gas ovens. Communicating with JAR was very easy and prompt
10 February 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear James,
Thank you for your kind review. We are pleased to hear that you found our team courteous and efficient during the removal of your commercial gas ovens.
At JAR Mechanical, we strive to make communication as easy and prompt as possible, so we appreciate your feedback. Thank you for choosing our services.
Best regards,
JAR Mechanical
He was genuine and trustworthy
He was genuine and trustworthy. Full recommend. Didn’t take advantage of me being a single woman
11 February 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Max,
Thank you so much for your kind review and for recommending our services. We truly appreciate your feedback and are glad to hear that you had a positive experience with us.
Providing honest and trustworthy service is a core value of our business, and it is wonderful to know that you felt comfortable and well-taken care of throughout the process.
We look forward to assisting you again in the future should you need any further help.
Best regards,
JAR Mechanical
Gas Safe Inspection
The engineer who did my Gas Safe Inspection (Kris) was on time, polite and efficient. Thank you
29 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear John,
Thank you so much for your kind review. We are delighted to hear that Kris was on time, polite, and efficient during your Gas Safe Inspection.
We take great pride in our service, and I will be sure to pass your positive feedback along to Kris.
Should you require any further assistance, please do not hesitate to contact us accordingly.
Regards,
JAR Mechanical
Professional service
Professional service. Rescheduled my appointment at first but when arrived we got good service.
27 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Thank you for taking the time to leave us a review. We are pleased to hear that you received professional and good service from our team.
We apologize for the initial need to reschedule your appointment and appreciate your understanding and flexibility. We look forward to working with you again in the future.
Best regards,
JAR Mechanical
Gas leak solved quickly
Jason visited my house today after a gas leak was detected and was excellent with deducing the exact problem and implementing the solution for it quickly. His explanations were clear and I am confident in using JAR in the future again and absolutely recommend them to others.
27 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Sanjay,
Thank you so much for taking the time to share your positive experience with us.
We are delighted to hear that Jason was able to quickly identify and resolve the gas leak at your home. We take great pride in providing clear explanations and efficient solutions for our customers, and it is wonderful to know that Jason’s work gave you such confidence in our services.
Thank you for your recommendation and for choosing JAR Mechanical. We look forward to assisting you again in the future should you need us.
Best regards,
JAR Mechanical
Moving Gas Pipe
Moving Gas Pipe
Only done today so can't comment on longevity but repair seems good. Prompt reply and works carried out within a week of calling. Decent text service to give you notice on when they're coming and good communication throughout. Overall happy and would recommend.
26 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Thank you so much for taking the time to leave such a positive review.
We are pleased to hear that you were happy with our communication and the promptness of our service. Providing timely repairs and keeping our customers informed through our text notification service are top priorities for us, so it is great to know these were helpful for you.
We appreciate your recommendation and hope you continue to be satisfied with the quality of the repair. If you need anything further in the future, please don't hesitate to reach out.
Thank you!
Thank you Rafal and team for installing my new boiler. Really professional, friendly and considerate service, really appreciated. Highly recommend.
24 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear valued customer,
Thank you so much for your kind review! We are delighted to hear that you are happy with your new boiler installation.
I will be sure to pass your generous words along to Rafal and the rest of the team. We strive to provide professional and considerate service to all our customers, and it is wonderful to know that our efforts were appreciated.
Thank you for your recommendation and for choosing our services.
Regards
JAR Mechanical
Excellent care from beginning to end
Excellent care from beginning to end. Appointments kept on time and work carried out by friendly and efficient Rafal. Everything left clean and tidy. Cannot fault . Would recommend.
16 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Marilyn,
Thank you so much for your kind review and for recommending our services.
We are delighted to hear that you received excellent care from beginning to end and that your appointments were kept on time. I will be sure to pass along your praise to Rafal for his friendly and efficient work, as well as for ensuring everything was left clean and tidy.
We truly appreciate your feedback and look forward to assisting you again in the future.
Best regards,
JAR Mechanical
Excellent service from JAR & Rafal.
Excellent service from JAR & Rafal.
He diagnosed the issue with our central heating system quickly despite our previous plumbers being unable to identify the problem.
It was then fixed quickly & cleanly & restored to full working order.
Rafal was efficient & courteous throughout & clearly knew his stuff.
No hesitation in recommending JAR.
5 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Thank you so much for taking the time to leave such a kind review.
We are delighted to hear that Rafal was able to quickly diagnose and resolve the issue with your central heating system, especially after the difficulties you experienced previously. Providing efficient, clean, and professional service is always our priority, and it is wonderful to know that Rafal’s expertise and courtesy made a positive impression.
We truly appreciate your recommendation and are glad we could restore your home to full working order.
Should you wish any further assistance in the future, please do not hesitate to contact us.
Best wishes, JAR Mechanical
Had a great experience with this…
Had a great experience with this Company. Very quick turn around and very knowledgeable engineer. Great communication and were able to get us up running quickly and efficiently. Thank you!
14 January 2026
Unprompted review
Reply from Jar Mechanical LTD
Dear Dawn,
Thank you so much for your kind review! We are delighted to hear that you had a great experience with our company.
Our team prides itself on providing knowledgeable engineering and clear communication, so it is wonderful to know that we were able to get you back up and running quickly and efficiently.
We appreciate your business and look forward to working with you again in the future.
Regards,
JAR Mechanical
JAR MECHANICAL gave me superlative service
JAR MECHANICAL gave me superlative service . They were prompt in their response to my urgent requirement of my boiler needing to be fixed . The engineer came on time , was polite , took care of the repair fully and the price was fair-what more can I ask ? I would highly recommend this company and won’t hesitate to ring them again, as needed.
30 December 2025
Unprompted review
Reply from Jar Mechanical LTD
Dear Miriam,
Thank you so much for your wonderful review! We are delighted to hear that you received superlative service from our team and that we were able to address your urgent boiler repair promptly.
It is great to know that our engineer arrived on time, provided polite service, and completed the repair to your satisfaction at a fair price. We truly appreciate your high recommendation and look forward to assisting you again whenever you might need us.
Regards,
JAR Mechanical
Great service
Great service. Good communication before the appointment, and the problems the engineer was called out to help with were fixed quickly. Could have advised an expensive solution to the problem but didn't. Overall, very happy with JAR.
17 December 2025
Unprompted review
Reply from Jar Mechanical LTD
Thank you so much for taking the time to leave us such a wonderful review!
We are delighted to hear that you experienced great service, appreciated the communication before the appointment, and that our engineer was able to quickly resolve the issues. We take pride in offering honest advice and appreciate you recognizing that our team always aims for the most effective, rather than the most expensive, solution.
We truly value your business and are very happy you are satisfied with JAR Mechanical services.
Wasted my time
Nearly a whole week of calling them twice a day to keep getting told I would get a call back. 6 days ago I was told it could be done 'tomorrow'. Finally got a call to say they have no availability at all. Very rude to waste someones time like that
24 November 2025
Unprompted review
Reply from Jar Mechanical LTD
Dear Miss Neesha Spence,
Please accept our sincerest apologies for the unacceptable experience you have had trying to schedule service with us. We deeply regret the wasted time and frustration caused by the repeated failed promises of a callback and the lack of clarity regarding our availability.
We understand that you were repeatedly told you would receive a call back, and that you were explicitly advised six days ago that service could be done the following day, only to finally be informed that we have no availability. This level of miscommunication and inconvenience is unacceptable, and we recognise how frustrating and rude it was to waste your time in this manner.
We are reviewing our internal processes to ensure that all team members provide accurate information about scheduling and availability, and that communication is handled promptly and professionally moving forward.
Thank you for bringing this issue to our attention.
Regards,
JAR Mechanical
Worst company I’ve ever come across
Worst company I’ve ever come across. Avoid at all costs. No show TWICE with no communication and had to chase them myself several times.
13 November 2025
Unprompted review
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