Business Details
Emergency
services
Trusted Commercial Building Services in Bristol & Cardiff
Unitary Engineering Services (UES) has been delivering comprehensive commercial building solutions since the early 1980s. As a family-owned B Corp-certified business, we combine four decades of technical expertise with a commitment to sustainability and community impact. Our services span HVAC systems, electrical infrastructure, property maintenance, and fit-out projects across Bristol, Cardiff, and the Southwest. With CHAS Elite, SafeContractor, and MCS accreditations, we prioritise safety, quality, and environmental responsibility.Our client-centric approach ensures tailored solutions that meet operational needs while reducing long-term costs and carbon footprints. We respond to all enquiries within 24 hours and have completed over 3,000 projects for repeat clients, demonstrating our reliability and technical proficiency. From urgent repairs to large-scale sustainability upgrades, UES delivers future-ready engineering solutions that balance performance with planetary responsibility.
Services
HVAC Systems
Electrical Services
Property Maintenance
Fit-out & Refurbishment
Sustainable Technologies
Highlights and features
- We offer 40 years of commercial building services expertise
- Our B Corp certification demonstrates environmental and social responsibility
- We guarantee 24-hour response to all maintenance emergencies
- Family-owned business with hands-on management and accountability
- Triple-accredited with CHAS Elite, SafeContractor and MCS certifications
Associations and certifications
- CHAS Elite
- SafeContractor
- MCS-certified
Services
HVAC Systems
We design and install commercial heating, ventilation, and air conditioning systems that maintain comfort while optimising energy efficiency. Our solutions meet regulatory standards for large-scale operations across Bristol and the Southwest. With specialist expertise in complex site requirements, we deliver HVAC systems that reduce running costs by up to 30% through smart controls and modern equipment.
Electrical Services
Our electrical contracting covers installations, maintenance, and upgrades for commercial properties. We ensure safe, compliant systems that minimise downtime and support long-term operational needs. From emergency lighting to full rewires, our certified engineers deliver solutions that improve safety and energy performance across Bristol, Cardiff, and surrounding regions.
Property Maintenance
We provide responsive commercial property maintenance that reduces reactive callouts and extends asset life. Our proactive approach covers planned preventative maintenance and urgent repairs. With rapid response teams across the Southwest, we keep commercial buildings operational while maintaining compliance and safety standards for landlords and tenants.
Fit-out & Refurbishment
Our commercial refurbishment services transform spaces with minimal disruption to operations. We handle full-scale fit-outs, bathroom upgrades, and accessibility improvements while maintaining strict deadlines. Recent projects include school facilities and public transport infrastructure upgrades that enhance functionality and user experience across Bristol and Cardiff.
Sustainable Technologies
We implement low-carbon technologies including solar PV, EV charging points, and heat pumps to reduce environmental impact. Our solutions future-proof commercial properties with energy savings and compliance benefits. As MCS-certified installers, we deliver renewable energy systems that cut running costs while supporting clients' sustainability goals across the Southwest.
People
Adam Griffiths
Managing Director
Adam leads UES with strategic vision, overseeing operations and client relationships. He drives our B Corp values and technical excellence while maintaining hands-on involvement in major projects across the Southwest.
Tim Clarke
Contracts Director
Tim manages project delivery and client liaison, ensuring all contracts meet quality and deadline commitments. His expertise in complex commercial projects ensures smooth execution from planning to completion.
Janson MacIver
Project Manager
Janson coordinates engineering teams and project timelines, specialising in HVAC and electrical installations. He ensures technical precision and client satisfaction across Bristol and Cardiff's commercial developments.
Questions
What areas do you cover for commercial building services?
We operate across Bristol, Cardiff, and the Southwest region, providing HVAC, electrical, and maintenance services to commercial clients in both urban and rural locations.
Are you certified for sustainable building practices?
As a B Corp-certified business, we hold CHAS Elite, SafeContractor, and MCS accreditations, demonstrating our commitment to safety, quality, and environmental responsibility.
How quickly do you respond to maintenance emergencies?
We guarantee a 24-hour response to all urgent maintenance requests, with rapid deployment teams available across our service areas to minimise business disruption.
What types of commercial clients do you work with?
We serve diverse sectors including education, transport, retail, and office developments, delivering tailored solutions for schools, public facilities, and private commercial properties.
Can you handle large-scale refurbishment projects?
Yes, our team manages full-scale commercial refurbishments from concept to completion, including recent projects at Larkmead School and Bristol Bus Station with tight deadline requirements.
