London's leading cleaning partner
in landmark properties.
35+
Years' Experience
3,500+
Dedicated Employees
100%
Employee-Owned
Transform your workspace with London's premier employee-owned cleaning service
A clean workspace isn't just about aesthetics. It's about creating a space where everyone feels welcome, germs don't stand a chance, and first impressions are always memorable. That's where Principle Cleaning Services steps in with commercial cleaning to turn your premises into a pristine haven.
Established in 1989, Principle Cleaning Services is your go-to solution for premium commercial cleaning services in London. Our team of professionals is dedicated to providing high-quality cleaning services that cater for your unique needs, transforming workplaces into spotless and inviting spaces.
What sets us apart is that Principle Cleaning Services is proudly employee-owned. With over 3,500 dedicated employees, every member of our team is personally invested in delivering the best possible service. This ownership model ensures that our commitment to excellence is not just professional but personal.
Why choose Principle Cleaning Services?
For a premium commercial cleaning service in London, you want a service that's reliable, thorough, and suited to your business needs. Principle delivers that and more.
Expertise and experience
With years of industry experience, Principle Cleaning Services offers unrivalled expertise in commercial cleaning. Our skilled professionals are highly trained and experienced in every aspect, ensuring your premises shine from top to bottom. Whether it's an office building, mixed-use development, biomedical facility or data centre, we provide comprehensive cleaning solutions tailored to your needs.
Committed to sustainability best practice
Our commitment to the environment and community is spearheading our journey to Net Zero. As a zero waste to landfill business, we prioritise reducing, reusing, and recycling while adopting technologies to cut carbon emissions and we minimise chemical usage. When needed, we use only Ecolabel-approved products, ensuring a green approach to keeping your workspace clean.
Tailored solutions for every business
Each business is unique, which is why our solutions are tailor-made to suit the specific needs of your premises. We take the time to assess your space, understand your objectives and develop a strategy that maximises efficiency, enhances productivity and aligns with your company's values.
Dedicated account manager
Your dedicated account and cleaning team will provide a personalised service and be your single point of contact for all your cleaning needs. They will ensure that everything runs smoothly and your expectations are always met.
Comprehensive commercial cleaning services
A diverse range of commercial cleaning solutions to cater for every business need in London — sparkling floors, spotless windows and a fresh, welcoming atmosphere.
Office cleaning services
Our meticulous office cleaning services cover everything from dusting and vacuuming to sanitising surfaces and restocking supplies. We focus on high-touch areas to reduce the spread of germs and ensure a healthier environment for everyone. Whether daily, weekly, or customised schedules, our office cleaners guarantee to always keep your office immaculate.
Periodic office cleaning services
Keeping an office consistently clean is key to a productive work environment. We offer flexible scheduling for our regular commercial office cleaning service, ensuring your office stays unblemished with minimal disruption. Our periodic services include comprehensive cleaning of workspaces, kitchens, washrooms and communal areas, always aligned with your business hours.
Professional office cleaning services
Principle Cleaning Services provides customised professional office cleaning, utilising premium cleaning materials, equipment and techniques. Our experienced office cleaners undergo rigorous training to deliver exceptional results, maintaining the highest standards of hygiene. We also use eco-friendly cleaning materials that are safe for your employees and the environment.
Building cleaning services
We specialise in making your commercial building shine inside and out. From diligent lobby maintenance and spotless common areas to impressive façade cleaning and thorough exterior pressure washing, we handle it all. Our goal is to ensure every part of your building is clean, inviting and professionally maintained, reflecting the high standard of your business.
Carpet cleaning services
Carpets are magnets for dirt, allergens and stubborn stains, but with Principle you don't have to worry. Our advanced carpet cleaning uses cutting-edge techniques and state-of-the-art equipment to deep clean and rejuvenate your carpets. We offer both steam cleaning and dry cleaning methods, ensuring your carpets look fresh and last longer.
Window cleaning services
Clean windows brighten your office and improve its appearance. Our professional window cleaning services guarantee crystal clear windows, enhancing the overall look and feel of your building. We use excellent cleaning products and specialised professional equipment to reach high and difficult windows safely and effectively.
Washroom cleaning services
A spotless washroom is essential for any business. We go beyond basic cleaning — our thorough washroom services include meticulous sanitisation and restocking of supplies, ensuring every visit is a hygienic and pleasant experience. We pay attention to every detail, making your washrooms impeccably clean and welcoming for all users.

Who says you can't be clean and green?
We deliver top-tier cleaning without compromising our eco-conscious practices, proving that a sparkling office and a healthy planet can go hand in hand. From sustainably certified products to energy-efficient equipment, our commitment to the environment is woven into every service we provide.
Sustainable cleaning solutions
Our green cleaning techniques conserve water and reduce waste. Our team is regularly trained to ensure they are maintaining sustainable cleaning standards, guaranteeing efficiency and care for our environment.
Certified green products
In line with our ESG commitments, our core cleaning products are sustainably certified, ensuring low hazards and environmental toxicity. We also ensure the specifications of our products are considerate of resources — water, waste and energy — so your building is meticulously maintained at no compromise to the planet.
Energy-efficient equipment
We use state-of-the-art, energy-efficient equipment to minimise electricity consumption. Our commitment to sustainable tools ensures top-quality cleaning with minimal environmental impact.
A service based on attention to detail and continuous improvement
Quality of service is our top priority. Rather than merely meeting contract requirements, we constantly seek ways to enhance our service. Our cleaning team are the experts on how things operate, so we actively seek their input on improvements.
As London's leading cleaning partner, we are dedicated to the finer details. We believe that small acts of consideration create exceptional workplace experiences for you, your staff, and your visitors.
Advanced technology and equipment
We bring a high-tech touch to cleanliness. Our range of advanced tools and innovative techniques transforms your workspace into a sanitary sanctuary.
High-tech cleaning tools
Our arsenal includes advanced tools designed for deep and effective cleaning. From high-powered robotic vacuum systems to specialised carpet and window cleaning machines, we use equipment that guarantees exceptional results, leaving no corner untouched.
Innovative cleaning techniques
Our team is continuously trained in the latest innovative techniques, ensuring every task is executed to perfection. We incorporate the newest industry practices to maintain the highest standards and deliver outstanding results.
Environmentally friendly equipment
Aligned with our ESG strategy, we deploy energy-efficient equipment that reduces electricity consumption while delivering powerful cleaning performance. We are redefining what it means to have a clean office.
Real-time monitoring — PCS Connect
With our PCS Connect system, we keep an eye on cleaning activities in real-time, making sure resources are used wisely. This smart system focuses on high-traffic areas, keeping your workspace consistently clean and ready for action.
“Farrer & Co. couldn't be happier with the exceptional service provided by Principle. From the moment they arrived, the dedicated team was professional, punctual, and incredibly thorough. What impressed me the most was the attention to detail — the 'can-do' attitude and approach, flexibility around core hours, nothing was overlooked! The management team and core team went above and beyond my expectations, and it's clear that they take great pride in their work.”
Ben Butcher
Facilities Manager, Farrer & Co
Additional services
By partnering with us you really can have it all. Principle offers a suite of other services to keep your workspace exceptionally clean and consistently maintained.
Waste management
Pest control
Emergency response
Slip testing
High standards of health and hygiene
Ensuring your workspace is a fortress of health and productivity is our mission. We don't just clean; we sanitise and protect, turning your office spaces into a haven your employees want to attend every day.
Rigorous cleaning protocols
Our cleaning protocols are designed to annihilate germs and bacteria, utilising effective, sustainably certified products and scrupulous methods. We target high-touch areas to curb the spread of illnesses, keeping your team at peak performance.
Hygiene audits
Regular hygiene audits ensure our quality standards are consistently met. We provide detailed reports on your workspace's cleanliness, giving you peace of mind and a clear view of your office's hygiene status.
Employee training
Our staff are all BICSc standard trained, and regularly undergo comprehensive training in the latest hygiene practices and cleaning techniques. They are equipped to tackle any cleaning challenge, maintaining the highest standards of cleanliness.
Our people
We hire top talent across all levels and invest in their training and well-being. Principle Cleaning Services has established itself as an employer of choice in London's facilities management sector. We are committed to offering growth opportunities to continually support and give back to the individuals who have contributed significantly to our success.
Frequently Asked Questions
Curious about our commercial cleaning London services? Here are some common questions we receive.