Tel: 020 84475515
Mobile: 07958 966568
contract cleaning in London and Hertfordshire

Contract Cleaning & Window Cleaning that dazzles!

Raise the Blue Flag and your expectations for sparkling commercial, communial and window cleaning in London. Call now for details.

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For A Professional Cleaning Service

Contract Cleaners and Window Cleaning in London

commercial cleaning london - hand carrying cleaning items

We're ready to clean

Blue Flag Clean has been established for the last 28 years and has built a reputation for reliability and a cleaning service of the highest standard at the very best prices.

For contract cleaning for offices, shops, or homes such as end-of tenancy cleaning we can clean at the hours that suit you best. For communial area cleaning we get the job done discreetly and with the minumum of fuss. And for window cleaning we have rounds that are regularly scheduled and can clean up to 4 storeys with the brilliant 'Reach & Wash' System.

Also since security is as important as results, be assured that every service we provide is performed by fully vetted, highly trained and CRB checked staff.

There's a reason we are rated a 5-star cleaning company rated on "Which? Local". Call today and begin finding out for yourself.

Specialised Commercial Cleaning and Window Cleaning

Cleaning Services

Commercial & Contract Cleaning

  • Office and Commercial Cleaning
  • Communial Area Cleaning
  • Residential Block Cleaning
  • Gardening, Weeding & Mowing
  • We won't be beaten on price!

Window Cleaning

  • Domestic, Business and Communal Premises
  • Water Fed Pole system cleaning many storeys high
  • Contract or 'One Off' Cleaning
  • Conservatory and Solar Panel Cleaning
  • We won't be beaten on price!

Our Contract Cleaning Services

Office Cleaning

Always cleaning at the time to suit you, we'll keep your workforce happy and their workplace hygenic.


End of Tenancy Cleaning

We can ensure that once one tenant leaves, the new one will enjoy moving into a home that's spotless.


Hard Floor Cleaning

Using machine polishers we keep hard floors such as concrete, vinyl and parquetry looking their very best.

Communial Cleaning

For indoor and outdoor shared communial areas we can clean on a daily, weekly or monthly basis.


Domestic Cleaning

A busy work and home life needn't get in the way of a beatifully kept house. We'll clean for you at great rates.


Window Cleaning

With 100% clean water delivered with the fantastic 'reach and wash' system your windows will be left sparking.

Window Cleaning - We Use the Reach & Wash System

the reach and wash window cleaning system

The reach and wash is a highly effective method which allows us to clean both glass and window frames. The water is taken through five stages of filtration and finally through a fine resin to take out all impurities producing 100% pure water straight from the vehicle, through the water fed pole and onto your glass and dries to a perfectly fine finish and is very eco friendly.


  • I chose Blue Flag from the 'Which? Local' list of recommendations and have been using them for over a year. They come reliably every two months and clean outside and in to a high standard. Peter and his team are honest and helpful, going the extra mile, for example, to clear leaves from my roof drain. Their charges are fair and I consider them very good value for money."

    - Mrs Spensley, Totteridge

  • I have been using Blue Flag Window Cleaning for the last 15 years or so and I have found them to be very thorough, reliable and polite. I would not hesitate to recommend them"

    - E Maynard, Muswell Hill

  • Blue Flags pole system does a great job on my windows on the second floor, after many years of looking out of dirty windows. Good professional service"

    - Molly Ryan, Mill Hill

  • We have been using Blue Flag now for around 7 years and cannot fault their reliability or quality of work"

    - T Cooper, Highgate

  • This is a very professional and honest firm. They came on time and their charges were fair. I would use them again."

    - Mr Arunag, Harrow