Can Dirty Windows Affect Your Health?

Charlotte Bowe • 23 March 2020

We look at the impact of dirty windows on your health

Internal window cleaning

The mouldy bits


Mould loves a moist, warm place to call home and the condensation on your windows creates the perfect atmosphere for mould to survive and grow.


Look out for any dark brown/black spots or stains on the window/windowsills, these are all indicators you are growing mould on your office windows. Mould from the windows can cause respiratory infections and can make allergies worse, therefore you need to find a successful way to eliminate the bacteria. 


In some cases, mould can be undetectable, if it is growing through the inner part of the window. This can be hard to remove yourself and requires a professional cleaning company.


Using a cleaning service that specialises in window cleaning is the most efficient way to remove mould from the window, making your offices a safe and hygienic environment to work in.


Reducing all the allergens


Dirt and debris build up quickly on windows and windowsills and can be a larger health risk than you would imagine.


Dust, hair, skin, pollen etc. all gather on and around your windows and cause this range of allergic reactions:

  • Headache
  • Itchy eyes
  • Coughing 
  • Nausea 
  • Fatigue 
  • Runny nose 

 

These reactions clearly indicate the importance of keeping your office windows clean.


Getting those windows cleaned may even reduce the number of employees going off sick.


Let the (UV) light in


Research has shown that rooms with windows that allow a good amount of UV light in, have reduced amounts of bacteria and virus' floating around. Dirty windows can reduce the amount of natural light by around 40%.


Poor lighting in the office can affect the health of your employees, causing symptoms like:

  • Eye strain 
  • Migraines 
  • Headaches 
  • Lethargy 
  • Poor concentration

 

"Significant numbers of employees are frustrated by their lighting environment and are impacted by the negative effects. 48% have experienced eye strain or eye irritation due to lighting issues and 40% also reported tiredness, all due to poor lighting." Source: workplaceinsight.net


We can see the damaging effect leaving dirty windows has on the health of the employees. Commercial cleaning companies such as It’s Clean, are the best solution for this cleaning challenge, as they have the right chemicals and methods to eliminate any harmful bacteria and fungi from the window, that could be having a negative impact on office staff.


If you need help with your window cleaning, to improve the appearance of your office, and to keep your employees healthy, then call us on 01423 566785.

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15 May 2026
As a Yorkshire-based commercial cleaning company, It's Clean Ltd has been providing commercial cleaning services to local businesses since 1999, supporting clients across Harrogate, Leeds, York, Ripon, Wetherby and the surrounding areas. We work with a wide range of organisations including: Commercial offices Healthcare providers Schools and colleges Retail premises Warehouses and industrial sites Property management companies Event and exhibition venues By maintaining a strong local presence, the team can provide responsive support and tailored cleaning services to businesses throughout the region. Commercial office cleaning in Leeds Leeds continues to see significant business growth across professional services, finance, technology and creative industries, increasing demand for reliable and professional commercial cleaning services. Businesses in Leeds often require flexible cleaning schedules that work around busy work environments, hybrid working patterns and multi-tenant buildings. Services such as communal area cleaning, washroom services, carpet cleaning and window cleaning are often integrated into wider office cleaning contracts to maintain a consistent workplace standard. Commercial office cleaning in Harrogate Harrogate businesses often place strong emphasis on presentation, client experience and workplace standards, particularly within professional services, healthcare and hospitality sectors. Professional commercial office cleaning in Harrogate helps businesses maintain welcoming, well-presented environments while ensuring practical day-to-day cleanliness across offices, meeting spaces and staff facilities. With its head office based in Harrogate, I t's Clean Ltd has built long-standing relationships with businesses across North Yorkshire by delivering responsive, locally managed cleaning services. Choosing the right commercial office cleaning company When selecting a commercial office cleaning provider, businesses should look for: Experience within commercial environments Flexible contract options Clear quality control processes Strong communication and responsiveness Appropriate accreditations and training Reliable staffing and supervision A local team with knowledge of the area A professional cleaning contractor should feel like an extension of your business, supporting workplace standards, employee wellbeing and operational efficiency. Looking for commercial office cleaning in Leeds or Harrogate? It's Clean Ltd provides professional commercial office cleaning services across Leeds, Harrogate, York and the surrounding Yorkshire region. From daily office cleaning and contract cleaning to deep cleans, washroom services, carpet cleaning and communal area cleaning, the team works with businesses of all sizes to create cleaner, healthier and more welcoming workplaces. To arrange a free survey and quotation , contact the team today.
by jenni 15 April 2026
A clean office does far more than simply create a good first impression. For businesses across Leeds , Harrogate and the wider Yorkshire region, professional commercial office cleaning plays an important role in supporting staff wellbeing, productivity, workplace presentation and day-to-day operational standards. Whether you manage a busy corporate office, a shared workspace, a healthcare setting or a growing SME, maintaining a consistently clean working environment helps create a space where employees, visitors and clients feel comfortable and confident. At It's Clean Ltd we provide professional commercial office cleaning in Leeds, Harrogate, York and across Yorkshire, delivering tailored cleaning services designed around the needs of each individual business. Commercial office cleaning tailored to your business No two workplaces operate in exactly the same way. Some businesses require daily cleaning outside office hours, while others may need weekly contract cleaning, specialist deep cleans or additional services such as carpet cleaning, washroom services or communal area cleaning. That’s why professional commercial office cleaning should never be a one-size-fits-all approach. At It's Clean Ltd cleaning schedules are tailored around each client’s requirements to minimise disruption while maintaining consistently high standards throughout the workplace. Why businesses are outsourcing office cleaning For many organisations, outsourcing commercial office cleaning in Leeds and Harrogate offers a more reliable, efficient and cost-effective solution than managing cleaning internally. Professional cleaning contractors provide: Fully trained cleaning teams Consistent quality control Flexible cleaning schedules Specialist cleaning equipment and products Emergency cleaning support Washroom, carpet and window cleaning services Ongoing compliance and health & safety management This allows office managers and leadership teams to focus on running the business while knowing workplace cleanliness is being managed professionally. Creating healthier workplaces Modern workplaces see high levels of daily contact across desks, kitchens, washrooms, meeting rooms, touchpoints and shared equipment. Professional office cleaning helps maintain hygiene standards throughout these spaces and supports healthier working environments for staff and visitors alike. Services such as sanitisation of desks, keyboards, telephones, washrooms and communal areas have become an increasingly important part of workplace management for businesses across Yorkshire. To find out more about how we support businesses with professional commercial cleaning Request a Free Survey and Quote
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