Roof Cleaning

We use scrapers that fit the profile of your tile to remove the majority of Moss / contaminates from your Roof, or we can use our low-pressure steam system that gives instant clean results

There are different reasons to consider removing moss from your roof.

Is moss blocking your gutters, falling on paving and cars?

Is it lifting tiles?

If left untreated, moss will spread. Water trapped within the moss can lead to dampness against the tile surface, this can cause damage especially over winter months.

Whatever the reason we can help!

We work from Scaffold towers, this avoids damage from walking on tiles and keeps our staff safe from dangerous falls

After Scraping, Over the following months, the dark coverings will die away, the surface will naturally rejuvenate and your Roof will return to its original colour(**)

Our treatment leaves Residual Biocide on your roof, that will offer regrowth protection for many years - were so confident we offer a 3 year guarentee.

City & Guilds Softwash Technicians

Our Technicians have attended and received training to gain comprehensive industry knowledge and skills in the safe and effective use of Professional Biocide/Chemicals & Oxidising Agents, including the Health and Safety of careful and considerate chemical handling.

We have cleaned hundreds of roofs’, all with great results and very happy customers

The Chemicals we use are fully approved by The Health & Safety Executive (HSE) for use in the UK and are fully compliant with “REACH” (Registration, Evaluation, Authorisation & restriction of Chemicals) regulations for cleaning exterior hard surfaces.

We hold a waste transfer licence, we will remove your waste moss and dispose of legally with our waste removal contractor.

Our core area is around Stevenage, Hitchin, Letchworth but we offer our Roof Cleaning service all over Hertfordshire, Bedfordshire, Buckinghamshire, Cambridgeshire & Essex.

Footnotes:

* Softwashing – To apply chemical at low pressure with a soft brush or spray nozzle

** Natural original colours can be varied due to damage from longterm moss growth, UV bleaching and degraded surface covering, dark tiles may offer no visible colour change, the removal of moss may reveal cracks and tile surface damage.

We recommend ongoing repeat treatments as part of your regular property schedule that are tailored to your local environment.

We also Clean Commercial Properties Click for a look

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We clean up the waste from gutters and floor areas, then Softwash(*) apply a Biocide treatment. This controls biological growths – algae, lichen, fungi, moss and mould – that cause red, green, yellow and black staining

We make a site visit before issuing a Quote, so can explain the process and answer any questions you may have.

Our Quotes are Free, non-obligatory and we do not pressure sell.

Roof Cleaning Guarantee

3-Year Moss-Free Guarantee

At NHClean, we stand behind the quality and effectiveness of our professional roof cleaning service. Using our safe scrape-and-softwash method, we not only remove visible moss but also treat the roof with a long-lasting biocide to prevent regrowth.

Here’s what our guarantee includes:

• Your roof is covered by a 3-Year Moss-Free Guarantee from the date of softwash application.

• Although the softwash treatment begins working immediately, the full cleaning process happens gradually over the following weeks and months as weathering naturally removes remaining residues.

• We guarantee that no moss will return to treated roof areas during the 3-year period.

• This guarantee covers moss only. It does not include other organic growths that may appear over time, such as light algae, lichen, or black mould.

And while we guarantee your roof will remain moss-free for at least 3 years, in many cases, our customers enjoy clean, clear roofs for significantly longer

In the unlikely event moss does return within the guarantee period, we’ll return and retreat affected areas free of charge.

Our Services

Roof Cleaning

Window Cleaning

Pressure Washing