NSS Group delivers comprehensive building maintenance and specialist cleaning services to support facilities management companies across the UK.
Supporting Facilities Managers Nationwide
At NSS, we understand the pressures facilities managers face. You’re responsible for multiple sites, tight budgets, compliance requirements, and keeping operations running smoothly—often with little notice. That’s why we’ve built our business around being the reliable, responsive partner you can count on.
We don’t use subcontractors. We don’t hire equipment from third parties. Every job is delivered by our own in-house teams using our own fleet of specialist access equipment. This means consistent quality, rapid response times, and complete accountability on every project, giving you peace of mind and freeing you to focus on what matters most.
With five locations across the UK and decades of experience, we work alongside facilities management companies to deliver planned and reactive maintenance for commercial properties of all types, from retail parks and shopping centres to office buildings, warehouses, and industrial facilities.
Services We Provide For Facilities Managers
As a facilities manager, you need contractors who understand the demands of your role, partners who respond quickly, deliver consistently, and take full accountability for their work. NSS Group provides the comprehensive building maintenance and commercial cleaning services that facilities management companies rely on to keep their portfolios safe, compliant, and operational.
Building and Property Maintenance Services
Our building maintenance division covers every aspect of commercial property upkeep, from roofing and facade work to glazing and drainage systems.
- Roofing Maintenance – Repairs, inspections, and preventative maintenance to protect against leaks and structural damage
- Gutter Maintenance – Cleaning, unblocking, repair, and Giromax-approved re-lining systems with up to 25-year guarantees
- Roof Coatings – Approved applicators for Giromax, Garland, Rooflock, and Flex-R Enduris with manufacturer-backed warranties
- Commercial Glazing – Surveys, repairs, replacements, and emergency boarding for all types of commercial glazing
- Siphonic Drainage – Specialist drainage solutions for commercial roofs
- Planned Maintenance – Tailored maintenance contracts to prevent costly emergency repairs and extend asset life
- Drone Surveys – Efficient, safe roof and facade inspections using the latest drone technology
- Dilapidations – Pre- and post-lease assessments and repair works
- Cladding Repair – Expert repairs to all types of commercial cladding systems
- Cladding Removal – Safe removal and disposal of cladding for refurbishment or replacement projects
- Building Facade Maintenance – Keep your commercial buildings safe, compliant, and professionally maintained with our comprehensive facade services.
Explore our full range of building maintenance services
Commercial Cleaning Services
Deliver a professional, welcoming environment with our specialist commercial cleaning services.
* Commercial Window Cleaning – Regular contracts or one-off cleans for buildings of all sizes
* Specialist Cleaning – High-level internal cleaning, atrium cleaning, and hard-to-reach areas
* Graffiti Removal – Fast, effective removal to restore your building’s appearance
* Chewing Gum Removal – Professional removal from entrances, walkways, and public areas
* SafeTOUCH Deep Cleaning – Our chemical-free cleaning system for streak-free, eco-friendly results
* Commercial Facade Cleaning – Rope access and platform-based facade cleaning
* Full Exterior Cleaning – Comprehensive external building cleaning including cladding and walls
* Rope Access / Abseil Cleaning – Specialist high-level cleaning without the need for scaffolding
* Cladding Cleaning – Restore and maintain the appearance of commercial cladding
* Solar Panel Cleaning – Maintain efficiency and maximise energy output
Explore our range of commercial cleaning services
Why Facilities Managers Choose NSS
Self-Delivered, Never Subcontracted
We don’t use subcontractors. Every job is completed by our own qualified technicians, ensuring consistent quality, better communication, and full accountability. You deal with one team from start to finish.
24/7 Nationwide Coverage
With nine UK locations and round-the-clock availability, we respond quickly to emergencies and planned works across the country. Whether it’s storm damage at 3am or a scheduled maintenance project, we’re ready.
Our Own Fleet & Equipment
Our in-house fleet includes truck-mounted platforms (20m–70m), rope access teams, and specialist equipment—meaning faster response times, lower costs, and no third-party delays.
Proven Expertise
We work with some of the UK’s largest facilities management companies and property portfolios. Our teams have decades of experience across retail, industrial, healthcare, education, and logistics sectors.
Transparent Reporting
We provide detailed reports for every project, complete with photographic evidence and recommendations. This helps you manage compliance, plan maintenance schedules, and demonstrate value to your clients.
Accredited & Insured
NSS holds comprehensive insurance and is accredited by CHAS, SafeContractor, and Constructionline. We work to the strictest health and safety standards on every site.
Industries We Support
Facilities managers across a wide range of sectors rely on NSS for their building maintenance and cleaning needs:
- Retail – Shopping centres, retail parks, and high street stores
- Industrial & Manufacturing – Warehouses, factories, and distribution centres
- Office & Commercial – Business parks, office towers, and commercial buildings
- Healthcare – Hospitals, clinics, and care facilities
- Education – Schools, colleges, and universities
- Leisure & Hospitality – Hotels, stadiums, and entertainment venues
- Logistics – Distribution hubs and logistics facilities
- Aviation – Airports and auxiliary buildings
How We Work With Facilities Managers
Planned Maintenance Contracts
We develop tailored maintenance programmes designed around your portfolio’s needs and budget. Regular inspections, preventative maintenance, and scheduled works help you avoid costly emergency repairs and extend the life of your buildings.
Reactive & Emergency Response
When the unexpected happens—storm damage, water ingress, broken glazing, or urgent facade repairs—our 24/7 team responds immediately. We understand that every minute of downtime costs your business, and we’re equipped to act fast.
Single Point of Contact
From initial enquiry to project completion, you’ll work with a dedicated account manager who understands your sites, your priorities, and your budget. No juggling multiple contractors or chasing updates.
Nationwide Consistency
Whether you manage one site or a national portfolio, we deliver the same high standard of service across the UK. One contractor, consistent quality, comprehensive reporting.
Flexible & Scalable
From one-off repairs to multi-site maintenance contracts, we scale our services to suit your needs. Our flexible approach means we can adapt quickly to changes in your portfolio or priorities.
Frequently Asked Questions
Yes. A significant portion of our work comes from supporting facilities management companies across the UK. We understand the unique pressures FMs face and have built our service model around being responsive, reliable, and easy to work with.
Absolutely. We offer tailored planned preventative maintenance (PPM) contracts designed around your portfolio’s specific needs and budget. Regular maintenance helps prevent costly emergency repairs and keeps your buildings compliant.
We operate 24/7, 365 days a year across the UK. For urgent reactive maintenance, we typically aim to attend within hours, not days—depending on location and the nature of the work.
Yes. Our teams are experienced in working on historic buildings, listed properties, and sensitive environments. We use appropriate methods and equipment to protect building fabric while delivering effective maintenance and cleaning.
Yes. We regularly work with facilities management companies managing national portfolios. Our nine UK locations and dedicated account management ensure consistent service delivery across all your sites.
Yes. NSS holds comprehensive insurance and is accredited by CHAS, SafeContractor, and Constructionline. We work to all relevant health and safety standards and can provide certification and risk assessments for every project.
Yes. We provide comprehensive reports for every project, including photographic evidence, findings, and recommendations. This transparency helps you manage compliance, support insurance claims, and demonstrate value to your clients.
Partner With NSS
If you’re a facilities manager looking for a reliable, responsive partner to handle your building maintenance and commercial cleaning needs, we’d love to hear from you.
With our self-delivered model, nationwide coverage, and decades of experience, NSS Group is the partner you can trust to keep your commercial properties safe, compliant, and operational—so you can focus on delivering exceptional service to your clients.
Contact us today to discuss your requirements.
Phone: 03459 677477
Email: info@nssgroup.com
Get in touch for a free, no-obligation quote.
“They always deliver – that’s why we keep using them. Across the spectrum they are thorough with a belt and braces approach to safety through to detailed post-work reports with forward-thinking solutions. Nothing is too much trouble.” – Director at a Global Real Estate Services provider
“It’s a level of professionalism that’s not always encountered in the industry. Delivery is always efficient and to a high standard.” – Regional Facilities Manager for a student accommodation provider
Having had difficulties with previous contractors due to the shape & access issues of my building it has been a pleasure to find such a reliable firm as NSS.
Facilities manager for a professional services firm
