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Porsche specialist

Sales

Porsche for sale

JZM sell exceptional pre-owned Porsche models, focusing on GTs, RSs, limited editions and iconic 911 classics. You’ll find most of our Porsche (along with a few other special marques) for sale at our facility, though some vehicles are not listed publicly. Let us know what you’re looking for.

The JZM Sales Inspection

We research the provenance of each Porsche before it undergoes our exacting pre-sale inspection in the workshop. For every Porsche that reaches our facility, there are others that don’t. This process ensures we acquire and supply only the finest quality cars our customers expect.

Sales Warranty

JZM is recognised as one of the UK’s leading Porsche specialists, with a long-standing reputation built on the exceptional vehicles we have bought, sold, and serviced. All JZM Porsche are sold with a warranty – please contact us for full details.

Off-Market Sales

Explore exclusive and rare Porsche offerings via JZM Porsche’s off-market sales platform.

Service & tuning

Porsche service & tuning

Every Porsche in for servicing and tuning at JZM goes through our bespoke health-check inspection as standard. We’re always happy to go through the report with you afterwards, the more you know about your car, the better.

Porsche service

Our original Porsche servicing and diagnostics equipment is probably the most comprehensive collection in the UK. JZM were the first Porsche PXN (Porsche eXternal Network) independent specialist in the UK and have always been updated up to the latest PIWIS Ⅲ. We also have a direct data and comms connection to Porsche HQ.

Porsche tuning

JZM’s extensive tuning experience comes from the knowledge of what works and what doesn’t. We are enthusiastic yet realistic refiners of Porsche only recommending and fitting the best bits – tried and tested parts that really work. Manthey Racing might be considered at the pinnacle of Porsche tuning, we’ve been approved fitters since 1999.

Storage

Porsche storage

JZM Storage is located north west of London, just off the M25 between the M1 and M40 junctions. Outside of the ULEZ zone. We’re not far from Kings Langley train station, a short journey from Heathrow and Luton airport, or you can land your helicopter just up the road. Accessible, convenient, care and security.

Peace of mind

With our two-floor storage facility, and over 40 years of experience working on Porsche, we know the cars well enough to provide a first-class service. While your Porsche rests with us, we can also carry out servicing, MOTs, and any other required work in our on-site workshop, readying your car for its next adventure.

Parts

Porsche parts

Porsche deserve the right parts starting with no less than OEM, and better as specified. We only stock brand parts that we know are the best. We don’t stock to profit or for commission even when they take a little longer to arrive but they’ll be better for the drive.

Performance guarantee

The reputable brands that make high quality parts stand by their product performance and provide guarantees. We believe what goes on must make the car better, and the driver happier. Complete peace of mind because should anything happen… no headaches.

EXCELLENT
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Based on 496 reviews
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Spencer Turnbull profile picture
Spencer Turnbull
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My experience dealing with JZM has been excellent. I was fortunate enough to be able to buy my car through them, so when it needed a service (the big 12year one!) they were the first people I called. Michele responded to my enquiry quickly with an estimate which was competitive and it was booked in and all necessary work completed within a week. Michele kept me informed of progress throughout the two days it was with them and the work was completed at the estimated price. JZM really are a great company to deal with and I’d have no hesitation recommending them.
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SH profile picture
SH
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If JZM were any more old‑school, they’d issue invoices on papyrus. I’ve bought two cars from them now, and each transaction has been smoother than a Manthey wing slicing through Silverstone air. Their selection is ridiculous - rare stuff, limited stuff, stuff you only see when the stars align or when Romans is asleep. Sales team? Knowledgeable, friendly, and refreshingly human. Setup, service, aftercare? Proper. No nonsense. No drama. Just a good bunch of humans who somehow make buying a Porsche feel like popping into your local corner shop. Two cars purchased, two painless experiences. If they keep this up, I’ll need a bigger garage.
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Peter Bullard profile picture
Peter Bullard
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If only OPCs showed the respect, courtesy and professionalism of the team at JZM’s service department. A big shout out to Michele Gibbs in particular, she really was responsive and helpful throughout the time my car was in for a service. I’ll be returning next year.
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Danny McGee profile picture
Danny McGee
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Exceptional 5 star experience working with Michele and the team at JZM Porsche. When I ran into an issues of contaminated fuel in my RS to sending an out of hrs message to Michele with an an immediate reply, The car was recovered back to JZM and booked in for diagnostic the next day and back on the road in perfect order within 24hrs. Complimentary valet on collection of the car. A lot of main dealers could learn from JMZ.
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Marc Kellinger profile picture
Marc Kellinger
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I was back at JZM last week for them to complete the fast road wheel alignment. Once again, there service was superb. Michele organised everything and ensured that the courtesy car was also available. She kept me up to date on the progress and when the car was ready to collect. The work was completed to the normal top standards. I also got to meet Steve, which was a bonus! Michele has since contacted me to ensure everything is as expected and asking for feedback of how the car drives to make sure I am happy with everything. JZM and Michelle certainly take top care of their customers. Can't recommend them enough, and if you have a sports car of any make then I would recommend you contact them for any service or enquires you may have. Two years prior: JZM did some work on my car recently - new tyres and battery replacement. The service that I received from Michele Gibbs and the team was superb. From making the initial booking, to arriving on the day to have the work done and then following up afterwards to make sure everything was as expected. The technical engineers spent time with me explaining different components on my car and showing me what they were doing and carrying out a full vehicle health check. This one to one dedication went above and beyond my expectations. Will definitely be using for future car work and would highly recommend to others if you own a Porsche (or other such sports car).
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D’jon L profile picture
D’jon L
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Had my 911 turbo serviced with JZM. The logistics of which were dealt with by Chele. She was very good, accomodating and helpful in terms of arranging the dates and allowing it to work for me logistically. She communicated with me throughout the process. The service was carried out in the expected time and no hiccups experienced. Overall, I had a good experience.
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Pranav Vangala profile picture
Pranav Vangala
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Bought a GT3 RS here, fantastic experience start to finish. Once the deal was agreed Adam and Aaron were communicative and helpful throughout. A few small cosmetic issues with the car were discovered and swiftly taken care of by the team with no additional cost to myself. Really appreciate the great service and will always come back if I’m looking for another Porsche
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james Edelsten profile picture
james Edelsten
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Overcharged for telling me what I already knew. After being told by my local garage that the timing chain cover was leaking on my 2011 Cayenne and they did not have the tools to take the engine out. JZM asked me to bring it in for an assessment and to price the job. After looking at the car told me the same thing (timing chain cover oil leak) and that they could not take the engine out of a Cayenne + to pay £180! I would have been happy to be told this over the phone as other specialist Porsche workshops were able to.
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Reg Dhanjal profile picture
Reg Dhanjal
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Had an excellent experience selling my car using JZM. Adam and the team were responsive and professional at all times. Highly recommended.
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