Business Details
29 Years
experience
Emergency
services
Trusted Construction & Maintenance Services in London
Olli Group is a family-run business established in 1997, delivering construction, maintenance, and refurbishment services across the UK. With 25 years of experience, we specialise in planned preventative maintenance, emergency call-outs, and new builds for sectors including education, social housing, retail, and leisure. Our directly employed team of skilled professionals ensures compliance with industry standards, holding accreditations such as ISO 9001, GasSafe, and NICEIC.We prioritise client satisfaction through tailored solutions, cost-effective practices, and a commitment to safety. Our London-based operations extend nationwide, supported by a fleet of vehicles and 24/7 emergency response capabilities. We foster long-term relationships by listening to client needs and maintaining transparency throughout every project.
Services
Planned Maintenance
Emergency Repairs
Decoration
Drainage
Fire Stopping
Roofing
Electrical
New Builds
Refurbishments
Void Property Management
Details
- Year established: 1997
Highlights and features
- 24/7 emergency response within 2 hours across London
- ISO 9001-certified quality management systems
- Directly employed, multi-skilled tradespeople for consistent delivery
- Specialist experience in listed buildings and heritage projects
- Cost-saving planned maintenance contracts with transparent pricing
Associations and certifications
- ISO 9001
- GasSafe
- NICEIC
- CHAS
- Construction Line
- BM Trada
What people say
Speedy service
Professional team
Excellent communication
Cost-effective solutions
Reliable 24/7 support
Services
Planned Preventative Maintenance
Our planned maintenance contracts reduce emergency costs by up to 40% through regular inspections and repairs. Covering all building trades, we tailor schedules to client needs while ensuring compliance with fire, electrical, and health & safety regulations. Our 24/7 keyholder service handles alarms and emergencies without disturbing clients.
Emergency Call-Out
Available 24 hours a day, our rapid response team resolves building emergencies within 2 hours across London. Specialising in drainage, roofing, plumbing, and electrical faults, we use advanced equipment like jetting machines and thermal imaging cameras to restore functionality swiftly and safely.
School Refurbishments
We deliver creative school refurbishments that enhance learning environments while maintaining strict deadlines. Our services include decorative schemes, fire safety upgrades, and infrastructure repairs, completed during school holidays with minimal disruption to staff and pupils.
Drainage Solutions
Our certified drainage team clears blockages using high-pressure jetting systems and CCTV surveys to identify root causes. We handle flood recovery following BDMA guidelines, ensuring complete drying to prevent future structural issues while maintaining compliance with environmental regulations.
Fire Stopping
FIRAS-accredited fire stopping services include fire door installation, penetration sealing, and risk assessments. We supply custom fire doors and maintain existing systems to ensure compliance with current legislation, protecting lives and property in residential and commercial buildings.
People
Dean Hollington
Managing Director
Dean leads Olli Group's strategic growth while maintaining hands-on project oversight. With 25 years in construction management, he ensures operational excellence and client satisfaction across all sectors, leveraging industry expertise to drive innovation and quality.
Questions
What sectors does Olli Group specialise in?
We work extensively in education, social housing, retail, leisure, and commercial sectors, with specialist experience in listed buildings and new developments.
Do you offer 24/7 emergency services?
Yes, our 24/7 emergency team responds to building faults within 2 hours across London and the South East.
Are your tradespeople directly employed?
All our operatives are directly employed, ensuring consistent quality control and adherence to our safety standards.
How do you ensure compliance with regulations?
We hold ISO 9001, GasSafe, NICEIC, and CHAS accreditations, with documented procedures for fire safety, electrical testing, and health & safety compliance.
Can you handle void property refurbishments?
Yes, our void management team refurbishes properties for housing associations, often financing projects through rental income arrangements.
