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
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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
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... See more
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... 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
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Replied to 37% of negative reviews
Typically replies within 2 weeks
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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.

Reply from Jar Mechanical LTD
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

Reply from Jar Mechanical LTD
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.
Charged £100 for just a quote
Charged £100 for just a quote - the quote was ridiculously high (£900 to fix a leaky tap) and I was quickly able to find another trader to complete the work for a fraction of the price. Be very wary not to use for a callout as they will charge you a full hours labour even if no work is done.
Unprofessional and unreliable
Booked a day off work to have a visit and quote. The window was 8-12pm. I waited and waited. At 11:40 I called to check status. She was very cavalier and said he was running late. She said its a very busy time of year. No call or message beforehand to let me know. A simple call in the morning to apologise and let me know he would be unable to attend would have made a big difference. If I didn't call, I would not have known. Unprofessional and not nice customer service.
Told to go elsewhere when I asked for quote breakdown
Asked for quote for a job I knew something about, quote was over £220. I asked for a breakdown, perhaps I had misunderstood nature of work (<30 mins) and part (<£20). Lady called back with message from engineer: no breakdown, go elsewhere... Dodgy as!
AVOID AVOID
AVOID AVOID - at all costs. Told me to buy an air con for them to install. and then bailed entirely on the work and left me with an uninstalled very expensive air con! Terrible company
AVOID
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 certainly did not. Specifically asked them to call me back and not cancel the appointment. They sent an emailed again falsly accusing me of manner and cancelled the apointment. I am truly shooked at their attitude to get rid of customers.
Very disappointed with this company
Very disappointed with this company. I booked their service, but they never showed up. When I called to ask what was happening, they told me they were just running late. Later, I got a call saying they’d come the following day instead. Then, the next day, I received an email saying the booking was cancelled altogether. Completely unreliable and a waste of my time.
Highly recommend
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, and making repeated visits. When this proved impossible, he put in a new one on a Saturday morning. Could not have been more obliging. Hollie in office also very prompt, good service. Would use again
Very pleased with the interactions…
Very pleased with the interactions with, and work done by, JAR Mechanical. From start to finish they were responsive. They kept me informed of progress and turned up when they said they would. Hollie was very helpful in arranging the appointment around my work needs, and their engineer, Rafal, was a delight to have working in my home, explaining everything that he was doing and being very considerate to the occasions when he had to keep the noise to a minimum as I was on calls. Best of all, I now have what seems to be an almost endless supply of hot water!!!
Courteous, efficient, professional service
Engineer arrived promptly. Assessed the situation and outlined a solution. Already had the materials in his van so could fix the two flue brackets required immediately. Courteous, efficient and professional. Would recommend.
Terrible Service AVOID
Very disappointed with the service received from JAR Mechanical. From start to finish, the experience was frustrating and unprofessional.
Booking the initial appointment was a challenge, I had to chase multiple times for confirmation as no one returned my calls. The appointment was then rescheduled twice at the last minute due to changes on their end, causing unnecessary inconvenience.
Following the site visit, communication completely broke down. Despite several calls, and an email, I received no response. The investigation was completed on 5th June, yet two weeks later I’m still chasing for a report I was told I’d receive by 17th June. I’ve had to call repeatedly just to get basic updates.
When I finally requested a refund due to the poor service, I was dismissed without so much as an apology or any acknowledgement of the concerns I raised.
This isn’t about the money, it’s about the principle and the lack of accountability. As a service provider myself, I expect a minimum level of professionalism and courtesy, which was completely lacking here.
Would NEVER recommend.
5 Star Service From Engineer Darren
Absolutely outstanding service from Darren, the engineer who came today to install my gas cooker. It was a complicated job but Darren went above and beyond, showing expertise, professionalism, patience, friendliness and kindness. Everything you could ever want in an engineer. I am so appreciative of all he did. If this is the standard for Jar Mechanical they deserve a 5 star rating here on Trustpilot. I must say that the office staff who helped me with my booking were wonderful too. Highly recommended.
expensive and late
quote a gas hob replacement for a total of 135 plus VAT and parts. They end up charging 230 plus VAT and parts. Also they came 1 day late, promissed a 10% discount, that never materialized. With so many engineers providing this service, better to stay way from JAR.
Trusted engineer to service the boiler
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 with the service, luckily no problems found with the boiler though dated but finding parts for it may be a problem.
The costs and rates were transparent. I was informed of the charges when booking the service.
I deducted a star which could have been 5 stars due to their short notice cancellation on the day. Their office called in the morning booked for the service to say there was an emergency call-out and no other engineer available so had to book another date.
But Darren came on the re-scheduled date on time, was polite, friendly and courteous. He just got on with the job servicing the boiler and did a thorough job with it.
AVOID THEM
AVOID THEM! Number of things went badly.
First they tried to charge us the highest rate for a bank holiday emergency call (which they said was a mistake - were they not aware it wasn't a bank holiday and it was 2pm?).
Secondly, they charged us 2 hour rate for one drain. They didn't notify us that the rate was per hour rather than per job. We wanted one drain unblocked, the engineer kindly said he would do another free of service and then charged us for the extra 30 minutes of time. He also spent 15 minutes going back to him van to get his tools, despite knowing we called for a drain unblocking. Finally the time went just over 1:30 mins so we had to pay 2 hours because and i quote "The 10 minutes the engineer spends in the van after the job writing up his notes counts).
Finally, the drain had just blocked again after one month. Waste of £350.
Good comms on when engineer was coming
Good comms on when engineer was coming
Engineer polite and efficient
Booked a repair to a gas fire
Booked a repair to a gas fire, appointment 12noon to 4pm sent email at 3.30pm phoned at 3.50pm got an email after 5pm saying left voicemail message, but it was left at 4.30pm.
Shocking, I personally would worry that if that is how they treat a new customer what is there work like. Cancelled job, booked with a company with much better reviews.
TERRIBLE SERVICE - two missed boiler service appointments with no contact and no reason given.
Booked a boiler service and was given a 2hr window for the engineer's arrival time, with the confirmation email stating that we would be notified in good time of any delay beyond the 2hrs. No one showed and no one contacted us. I called up during the 2hrs window and no one answered. I managed to speak to someone later that afternoon and rescheduled the appointment for the following week... and the exact same thing happened with our second booking - no show and no contact. Terrible service (non-existent, evidently) and beyond frustrating having had to arrange my diary to be at home on both occasions. If I could give zero stars I would.

Reply from Jar Mechanical LTD
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