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CNC Machine Repair Services in the UK Precision Repairs, Responsive Support, and Proven Expertise Across Industries
When your CNC machine fails, productivity suffers—and so does your bottom line. At Machine Tool Technologies (MTT), we understand the impact of unexpected downtime. That’s why we offer a full suite of CNC repair services designed to restore performance quickly, safely, and reliably.
With decades of hands-on experience in diagnosing and repairing complex machinery, our engineers support manufacturers and engineers across sectors including automotive, aerospace, defence, medical, and transport.
What We Do: Complete Machine Tool Repair & Recovery
MTT provides comprehensive repair services for a wide range of machinery, covering:
- CNC milling machines
- CNC lathes
- Routers and vertical machining centres
- Presses and forming equipment
- EDM (electrical discharge machines)
- Bespoke production systems
- Legacy and modern CNC controls
From full mechanical rebuilds to precise electronic fault diagnostics, our approach ensures your equipment is restored to optimal performance—whether through planned servicing or reactive repair in a production emergency.
Our Repair Approach: Precision, Speed, and Accountability
When a machine breaks down, time is critical. Our engineers are trained to respond fast, diagnose accurately, and repair efficiently—ensuring minimal disruption to your operations. Here’s how we work:
1. On-Site Assessment
Our response team visits your facility to inspect the machine, determine the root cause of failure, and perform immediate triage where possible.
2. Detailed Fault Diagnosis
We combine traditional engineering expertise with modern diagnostic tools, including vibration analysis, thermal scanning, and control system interrogation.
3. Repair and Rebuild
Whether it’s replacing worn bearings, repairing electrical systems, or overhauling spindles, our team carries out the work to exacting standards using OEM-grade components.
4. Post-Repair Testing and Calibration
We validate all repairs under real load conditions, ensuring your machine is fully aligned, balanced, and ready to return to service.
Why Work with MTT?
MTT isn’t just a repair provider—we’re a strategic engineering partner focused on long-term reliability. Here’s what sets us apart:
- Proven Sector Expertise: We’ve supported some of the UK’s most advanced manufacturers across critical industries, including defence, aerospace, and automotive.
- Asset-Centric Approach: We don’t just fix faults—we help manage the lifecycle of your machine tools, offering service contracts, upgrade strategies, and long-term performance plans.
- Highly Trained Technicians: Our engineering team brings multi-discipline experience in CNC mechanics, electronics, hydraulics, pneumatics, and software.
- UK-Wide Coverage: Based in Lancashire and strategically positioned for national support, we respond promptly to breakdowns, wherever you’re located.
Service Options
We offer flexible engagement models depending on your needs:
- Breakdown & Emergency CNC Repair: Immediate response to unplanned failures with fast-track parts sourcing and on-site repairs.
- One-Off Repairs: Cost-effective support for occasional issues, including machines that are out of contract or nearing end-of-life.
- Service Contracts & Asset Management: Comprehensive, ongoing support to ensure your entire machine fleet stays in peak condition.
- Full Machine Overhaul: For machines requiring major restoration, we provide complete mechanical and electronic strip-down, rebuild, and re-commissioning.
Faults we repair
Our engineers repair mechanical, electrical and control faults on CNC machines of every common type. The problems we are called to most often are:
- Spindle and spindle motor faults
- Servo and axis drive failures
- Axis alignment problems and loss of accuracy
- Control errors, including PLC faults
- Hydraulic and pneumatic faults
- Overheating, often caused by blocked filters or poor cooling of the control cabinet
- Vibration and chatter
Where a part has failed we fit OEM or equivalent quality spares, and we update software and firmware where the repair needs it.
Brands and controls
We are independent, so we repair all major makes, including Mazak, DMG Mori, Haas, Matsuura, Doosan and Okuma, and machines running Siemens, Fanuc and Heidenhain controls. If your machine is not listed, check the full list of CNC brands we support.
How quickly we respond
For breakdowns we offer response times from 12 to 48 hours, depending on where you are and how urgent the fault is, and engineers are available 24 hours a day, 7 days a week. We aim to respond to website enquiries within two hours. If production has stopped, call 0845 077 9345 and see our emergency CNC breakdown repair service.
Repair or replace? Two examples
A repair is not always a single part. Two recent projects show what can be done with a machine that the manufacturer can no longer support well.
AH Garner, a hydraulic cylinder manufacturer, had a Sierra skiving machine that was critical to its production and suffering from age, with limited regional support from the original maker. We replaced the electrical, control and hydraulic systems, with a new Siemens 828Dsl control and S120 drives, at 30% of the cost of a new machine.
In the United States, Allied Mechanical owned a 1970s Berthiez vertical turning machine with an obsolete control, extensive oil leaks and heavy mechanical wear. A replacement was estimated at £4 to 5 million. We refurbished the mechanical, hydraulic and electrical systems on site and fitted a new Siemens 840Dsl control, restoring accuracy to within the required tolerance bands.
Read both on our case studies page (link each to its own case study page once those pages carry the text).
Where we work
Machine Tool Technologies was formed in 2001. Repairs are coordinated from our head office in Chorley, Lancashire, and engineers travel to sites across the UK. We do not claim a staffed branch in every city. Instead we plan work region by region, which you can see on our UK locations page. Our management systems are registered to ISO 9001, ISO 14001 and ISO 45001.
Frequently asked questions
How quickly can an engineer get to us?
For breakdowns our response times range from 12 to 48 hours, depending on your location and the urgency. Engineers are available 24 hours a day, 7 days a week.
Which CNC machines and brands do you repair?
CNC milling machines, lathes, routers, vertical machining centres, presses, EDM machines and bespoke production systems. We work on all major brands, including Mazak, DMG Mori, Haas, Matsuura, Doosan and Okuma, and on Siemens, Fanuc and Heidenhain controls.
Do you repair older machines and obsolete controls?
Yes. We repair both legacy and modern CNC controls. Where a control is obsolete we can retrofit a current one, as we did on a 1970s Berthiez vertical turning machine and on a Sierra skiving machine.
Is the repair done on site?
Yes. Our response team visits your site to inspect the machine, find the root cause and carry out immediate repairs where possible. Spindle rebuilds are managed in-house.
How do you check the repair has worked?
We test under real load conditions after the repair and check alignment and balance before the machine goes back into production.
Can you repair a machine that is not on a service contract?
Yes. We carry out one-off repairs as well as contract work, including on machines that are out of contract or near the end of their life.
Sectors We Serve
Our CNC repair services are trusted by leading manufacturers in:
- Automotive
- Defence
- Aerospace
- Transport Engineering
- Medical Manufacturing
- Machine Tool Builders
- Precision Component Machining
Ready to Restore Your CNC Machines?
Whether you’re facing an urgent failure or looking to extend the lifespan of critical assets, Machine Tool Technologies is ready to help. Our CNC repair engineers are equipped with the tools, training, and insight to support your operation from diagnosis to full recovery.
Contact us today to discuss your repair needs or request a site visit:
- Phone: 0845 077 9345
- Email: info@mtt.uk.com
- Address: Unit A1 Buckshaw Link, Ordnance Road, Chorley, Lancashire PR7 7EL
- Or get in touch via our contact form
“MTT Successfully repaired several spindles within a short period time ensuring our
machines were back to full productivity in no time.”