Roof cleaning and pressure washing

A powerful jet can produce an impressive before-and-after photograph. For a roof, that photograph leaves out the more important issue: whether the method was appropriate for the covering and the condition of the building.

Homeowners comparing roof cleaning proposals should start with the method, access plan and expected outcome. The speed of visible colour change is not a reliable measure of a good job.

Check the covering before choosing the method

For WWR Roofing moss removal enquiries, the starting point is the covering and its condition. A cleaning method must suit those details. Strong water jets or unsuitable treatments can create problems, so establish the proposed method, product suitability and protection of surrounding areas before work begins.

Ask the contractor to name the method and explain its suitability. If a chemical treatment is proposed, request the product information and arrangements for protecting the surrounding property. Those details should be established before the work begins.

Include access and debris in the quotation

A cleaning proposal should explain how the roof will be reached and how dislodged material will be collected. Keep children and pets away from the working area and follow the contractor’s site arrangements. Do not attempt to test a small patch yourself from a ladder.

Clarify whether gutters and outlets are included at completion. Otherwise the scope may finish at the roof surface even though the job has produced material that needs to be removed elsewhere.

Judge the result against an agreed purpose

The intended result might be removal of a drainage obstruction or a controlled reduction of growth. Record that purpose before accepting promises about appearance. Ask for photographs that show the relevant details, rather than relying only on a distant shot of a cleaner slope.

Where damage is identified, have the repair described and priced separately. Cleaning is not a substitute for a repair that the covering actually needs.

Read when moss needs attention for the assessment stage, or contact the roof moss removal service to discuss the condition of your roof.