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Residential & Commercial Window Cleaning, Eavestrough Cleaning, and Commercial Janitorial Services

Since 1961, Superior Maintenance Service has been the gold standard in providing window, eavestrough, and office cleaning in Alliston and surrounding areas. Now in 2023, we are living in a fast-changing world. You can be assured that Superior Maintenance Service is keeping up to date with proper protocols as well as keeping our staff COVID-19 screened, monitored and trained.

For decades, Doug Milligan, his family, and his staff have seen the business grow to become one of the largest and most competitive in the area.


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