CSM Security Locksmiths

Welcome to CSM Security Locksmiths, I’m Chris Morriss the owner. I’ve been working in the locksmith industry for over 10 years, and during this time I have gained a wealth of knowledge and experience. I have built a trustworthy reputation, and have accumulated numerous 5-star reviews from my customers for the services I’ve provided.

I’m always keen to learn and develop my skill set, which ensures the work I carry out is efficient and completed to the highest standard.

I use professional locksmithing tools, which ensure no damage is done to the lock or door.

Intruder alarm systems we install are modern and have all the latest functions to integrate with smart devices.

Chris Morriss - CSM Security Locksmiths
CSM Security Locksmiths van

About Us

CSM Security Locksmiths provide a mobile locksmith service and a 24-hour call-out emergency locksmith service, which covers both residential and commercial premises. Services we offer; emergency lockouts, lock repairs & replacements, lock picking, lock installations, multipoint lock repairs & replacements, window locks, window handles, door alignment, lock servicing, key safes, broken key extractions, door handle replacements, digital locks, code locks, padlocks, security bolts, patio door repairs, UPVC door repairs, composite door repairs, wooden door repairs, access control, install intruder alarm systems & service annually.

Our Services

Locksmiths - Access Control - Intruder Alarms

24/7 Locksmith Service

CSM Security Locksmiths provide a 24-hour emergency locksmith service, 7-days a week.

Lock Replacements

We replace euro-locks, rim-locks, mortice locks and other types of locks.

Lock Installations

We can install additional locks or security bolts, which will add extra security to the door.

Multipoint Locks

We repair and replace faulty or broken multipoint locking mechanisms.

Broken Keys

We can extract broken keys, so no damage is caused to the lock.

Intruder Alarms

Install & service Grade 2 wireless intruder alarm systems.

Lock Repairs

We can repair and service all types of locks.

Access Control

Standalone, door entry, Net2 & wireless door handles.

Customer Testimonials

“Chris kept me informed via WhatsApp with what was going on (that he had ordered the parts, that they had arrived and that he was on his way) and he arrived on time. Within an hour he had completed the work to a very high standard. I would highly recommend him. Thank you so much!”
“Chris was easily contactable, readily available on short notice, was very friendly and professional. Job completed as promised and within timeframe estimate, very grateful for your help!”
“I highly recommend CSM. We dealt with Chris today who was very professional, reliable and has excellent craftsmanship. He went above and beyond to ensure all the new locks were installed and working properly. He was available at short notice and didn't leave until the job was done to the highest standard possible. And his prices were very competitive. Highly recommend.”
“Absolutely brilliant. Chris arrived quickly and despite the fact that the job was not easy, he did it in a timely and professional manner. Reasonably priced and great value for money for the level of service I have received. I would definitely recommend him.”
“Very friendly, fast and professional service provided by Chris. Needed my front door locks changed same day and he was there almost immediately. Price was better than expected. Very highly recommended.”
“Originally I tried to change the locking cylinder by myself with tools and parts from B&Q and a guide from YouTube. After wasting over an hour I was keen to hire anyone else to do it instead of me. Chris come over and sorted both locks in about 20 minutes. A bit embarrassing for my ego me but very professional and good service from him.”
“I don’t usually leave reviews but on this occasion, it’s totally needed. I called Chris as my front door lock broke, he came round the same day and replaced the lock and even fixed the door that was a bit sticky. He was very friendly and did great. Would definitely recommend using him if you need a locksmith.”
“Absolutely first class service from Chris! Very friendly, knowledgeable and in keeping with the current times - very thorough with the clean afterwards. Sorted our broken door lock in an incredibly efficient manner. Wouldn't hesitate to go to Chris again!”
“Chris was very helpful, called him on a Thursday night and managed to get an appointment booked for Friday. He was very efficient, and professional and ensured that the problem was sorted. Also recommended other professionals for other bits I needed sorting out around the house. Can not recommend Chris enough due to fast and efficient service at a very high quality.”

Why Choose Us?

Customer Service

Fantastic customer service & communication


Appointments booked are kept to the scheduled time frames

Fast Response

Fast response times for both our emergency and non-emergency locksmith service

Fully Uniformed

Locksmiths are fully uniformed, wear the appropriate PPE and drive a sign-written van.

No Hidden Costs!

Prices are competitive with no hidden costs

Fully Qualified

NDE Level 2 (non-destructive entry)

Fully Insured

2-million professional indemnity cover

Listed as one of the best locksmiths in Milton Keynes 2022 on the Three Best Rated

Popular Brands We Supply


Areas We Cover
PayPal Card Payments Accepted
Card Payments Accepted

Paypal, Mastercard, VISA, Maestro, American Express, Delta, Electron, Eurocard, Apple Pay and Google Pay