Our Guarantee

From the company's Terms of Service, section 6, last updated 5 August 2026:

If you are not satisfied with the quality of our work, please contact us within 7 days of your service. We will inspect the concern and, when appropriate, return to address issues related to the original scope of work at no additional charge.

The guarantee does not cover:

• New dirt, pollen, dust or debris that accumulates after service.
• Weather-related spotting after service.
• Existing damage, failed window seals, scratches, hard water staining, oxidation, mineral deposits or defective glass.
• Conditions outside the original scope of work.

Those exclusions are worth reading rather than skipping, because two of them are the things people most often expect a guarantee to cover. A failed sealed unit fogs between the panes where no cleaner can reach, and hard water staining is etched into the glass surface rather than sitting on it — neither is dirt, and neither is fixed by cleaning the window again.