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... Ver mais
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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... Ver mais
A empresa respondeu
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... Ver mais
A empresa respondeu
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... Ver mais
AVOID - DO NOT USE THIS COMPANY. Had a confirmed appointment, no one turned up nor communication. When I called to find out what has happened, I was falsly accused of 'screaming' at them, which I cert... Ver mais
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.
3rd Floor 86-90 Paul Street, EC2A 4NE, LONDON, Reino Unido
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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.

Resposta da Jar Mechanical LTD
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
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.

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
AVOID this engineer. I regret ever finding him online. Find someone honest, capable, ethical.
Very quick and easy, Rafal was very useful and helpful. All in all great and smooth experience.

Resposta da Jar Mechanical LTD
Very courteous and efficient in dealing with the removal of 2 commercial gas ovens. Communicating with JAR was very easy and prompt

Resposta da Jar Mechanical LTD
He was genuine and trustworthy. Full recommend. Didn’t take advantage of me being a single woman

Resposta da Jar Mechanical LTD
The engineer who did my Gas Safe Inspection (Kris) was on time, polite and efficient. Thank you

Resposta da Jar Mechanical LTD
Professional service. Rescheduled my appointment at first but when arrived we got good service.

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
Thank you Rafal and team for installing my new boiler. Really professional, friendly and considerate service, really appreciated. Highly recommend.

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
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!

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
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.

Resposta da Jar Mechanical LTD
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

Resposta da Jar Mechanical LTD
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.
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