Business Details
50+ Years
experience
Emergency
services
Trusted Security Solutions in Bristol
Thornhill Security has been a trusted provider of specialist security solutions for over 50 years, serving domestic and commercial clients across Bristol, the South West, and the UK. Our expertise spans the supply, installation, and maintenance of high-security safes, vaults, locking systems, and access control solutions, supported by a team of fully trained, security-vetted engineers. As a Government-approved supplier and holder of industry accreditations including SafeContractor and MLA approval, we combine technical excellence with a commitment to customer service.Our long-standing relationships with leading manufacturers ensure access to cutting-edge security products, while our in-house team guarantees consistent quality from initial advice through to after-sales support. With a showroom in Kingswood, Bristol, we offer tailored solutions for cash protection, document security, and property safety, backed by a 12-month guarantee on reconditioned safes and a reputation for reliability built over decades.
Services
Safe Installation
Locksmith Services
Vault Removal
Access Control
Safe Hire
Key Cabinets
Security Grilles
Master Key Systems
Details
- Year established: 1970
Highlights and features
- Over 50 years of specialist security experience
- Fully accredited in-house engineering team
- Government-approved supplier status
- Comprehensive 12-month guarantee on reconditioned safes
- 24/7 emergency locksmith services available
Associations and certifications
- Master Locksmiths Association (MLA)
- SafeContractor
- Constructionline
- British Safe & Vault Trade Association (BSVTA)
What people say
Very efficient
Professional team
Excellent service
Highly recommended
Skilled workmanship
Services
Safe Installation
Our expert engineers provide professional safe installation services for both domestic and commercial properties. We ensure proper anchoring and wall assessment to maintain maximum security, using specialist fixings that resist tampering. With accreditation from SafeContractor and Constructionline, we handle all safe types including cash safes, document vaults, and gun cabinets. Our service includes site evaluation, weight capacity checks, and discreet positioning while maintaining accessibility. We serve Bristol, the South West, and nationwide locations.
Locksmith Services
As MLA-approved locksmiths, we offer comprehensive lock services including UPVC replacements, access control systems, and master key solutions. Our team handles emergency lockouts, lock repairs, and high-security lock installations to British standards. We stock a wide range of security cylinders, padlocks, and digital locking systems from leading manufacturers. All work is performed by our in-house specialists who provide both domestic and commercial security solutions across the UK.
Vault Removal
Specialist removal of demountable vaults and strongrooms requires unique expertise due to their weight and construction. Our team has safely relocated hundreds of industrial security structures over 50 years, using purpose-built equipment and risk-assessed methodologies. We handle complete removal, partial dismantling, or reinstallation at new premises while maintaining structural integrity throughout the process. This service operates across Bristol and nationwide locations.
Safe Hire
We provide temporary safe hire solutions for events, office moves, and film productions. Our rental fleet includes cash storage units, document safes, and valuables cabinets with flexible hire periods from one week upwards. The service includes delivery, professional installation, and collection, with options for digital locks requiring combination codes. We assess each location's access requirements to ensure minimal disruption during installation.
Access Control
Our access control systems offer advanced security management for commercial properties. We install and maintain electronic keyless entry systems, biometric scanners, and multi-user access solutions that integrate with existing security infrastructure. These systems provide audit trails, time-restricted access, and remote management capabilities. As approved suppliers of leading brands, we ensure reliable, scalable solutions tailored to business security requirements.
People
Phil
Security Engineer
With over 20 years' experience in security engineering, Phil specialises in complex safe installations and vault modifications. He leads our technical team in Bristol, ensuring all projects meet strict safety and security standards while delivering practical solutions for clients' specific needs.
Questions
Do you offer emergency locksmith services?
Yes, we provide emergency locksmith services during standard working hours for urgent lockouts and security breaches.
Can you install safes in difficult locations?
Our team handles complex installations including upper floors, historic buildings, and restricted access areas using specialist equipment.
Do you supply second-hand safes?
We offer fully reconditioned safes with new locks and 12-month guarantees starting from £200.
Are your engineers accredited?
All engineers hold industry accreditations including SafeContractor, MLA, and BSVTA standards.
Can you remove old safes?
We provide complete safe removal and environmentally responsible disposal services for domestic and commercial clients.
Do you service digital locking systems?
Our team maintains and upgrades electronic locks, access control systems, and master key configurations.
