What does commercial roof cleaning include?
The Lower Mainland’s wet, mild climate lets moss, algae and lichen grow on roofs for most of the year. On commercial and multi-unit buildings, that growth can hold moisture against roofing materials, lift shingles, block gutters and drains, and send debris onto walkways below. Commercial roof cleaning removes it before it becomes a maintenance problem.
We use low-pressure methods rather than high-pressure blasting, which can strip granules and damage roofing. Roof cleaning can be scheduled together with building exterior washing or, for townhouse complexes, strata exterior washing, so the roof is cleaned before the walls below.
- Moss and lichen removal from asphalt shingles
- Algae and black streak treatment
- Debris clearing on flat and low-slope roofs
- Roof drain and scupper clearing
- Gutter and downspout clearing
- Metal roof and flashing cleaning
- Clay and concrete tile roof cleaning
- Debris removal around rooftop equipment
What’s included
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Roof and access assessment We confirm roof type, pitch, height, anchor points and safe access before quoting.
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Safety plan Fall protection, exclusion zones below and site-specific procedures are set for every job.
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Manual moss removal Thick moss is removed by hand and brushed off without scraping the roofing surface.
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Low-pressure cleaning Suitable cleaning solutions and gentle rinsing lift algae and staining without stripping granules.
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Growth treatment A treatment can be applied to slow moss and algae regrowth where the roof type allows.
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Gutter clearing Gutters and downspouts are cleared of moss, leaves and granules so water drains freely.
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Flat roof drains Roof drains and scuppers on flat roofs are cleared to reduce ponding.
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Ground-level cleanup Debris that falls to walkways, landscaping and parking areas is collected before we leave.
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Condition notes Visible issues such as damaged shingles or loose flashing are noted and reported to you.
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Supervisor sign-off Work is inspected and logged, and any missed area is corrected within 48 hours.
Properties we serve
Strata & property management
Townhouse and low-rise strata roofs cleaned on a schedule set with the council.
Retail & shopping centres
Plaza and storefront roofs where clogged drains and gutters affect entrances.
Offices & corporate buildings
Low-rise office roofs kept clear of moss, debris and blocked drains.
Industrial & warehouse
Large flat and metal roofs with drains, scuppers and gutters to maintain.
Schools & campuses
Roof and gutter cleaning booked during school breaks and summer closures.
Healthcare & medical facilities
Clinic and long-term care roofs cleaned with minimal disruption to residents.
How often should a commercial roof be cleaned?
Many shaded or tree-lined roofs in the Lower Mainland benefit from moss removal every one to two years, with gutter and drain clearing once or twice a year, usually in late fall after leaves drop. Flat roofs with drains should be checked more often, since blocked drains can lead to ponding.
Roof work is weather-dependent, so we book dry windows and confirm the date as the forecast firms up. We coordinate access, notices and parking with your property manager or facility team. Request a quote and we will send a written scope within one business day, or browse our other exterior services.
How it works
Starting service is simple
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Free site walkthrough
Tell us about your facility. We visit, confirm the scope and send a written quote.
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Custom cleaning plan
Nightly, weekend or day porter schedules built around your operating hours.
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Inspected & reported
Supervisor inspections, daily logs and corrective action within 48 hours.
Safety, insurance and compliance
Roof cleaning is work at height, so safety planning comes first. Crews use fall protection suited to the roof, set exclusion zones on the ground below, avoid working in unsafe weather and follow site-specific safety procedures. Where safe access is not possible, we tell you during the walkthrough.
- $5,000,000 commercial general liability insurance
- Bonded, uniformed staff
- Active WorkSafeBC coverage
- WHMIS-trained team members
- Supervisor inspections and daily logs
Service areas
Serving Surrey and the Lower Mainland
We clean commercial, industrial and strata roofs and clear gutters across Surrey, the Lower Mainland and the Fraser Valley.
FAQ
Commercial roof cleaning FAQs
Do you pressure wash roofs?
No, not with high pressure. High-pressure washing can strip shingle granules, crack tiles and force water under roofing. We remove thick moss by hand and use low-pressure application and rinsing with suitable cleaning solutions for the rest.
What types of roofs do you clean?
We clean asphalt shingle, metal, clay and concrete tile, and flat or low-slope roofs on commercial and multi-unit buildings. Each roof type needs a different method, so we confirm materials, pitch and access during the walkthrough before recommending an approach.
Is gutter clearing included?
Yes, when it is part of the scope. Roof cleaning dislodges moss and debris that end up in gutters, so we clear gutters and check downspouts are flowing after the roof is done. On flat roofs we clear drains and scuppers as well.
How do you keep people safe below the roof?
We set exclusion zones with cones and signage under the work area, time work around busy entrances and ask property managers to notify tenants or residents. Falling debris is collected from walkways, landscaping and parking areas before we leave the site.
Will moss come back after cleaning?
In our climate moss eventually returns, especially on shaded roofs. A post-cleaning treatment, where suitable for the roof, can slow regrowth, and regular gutter clearing helps. We recommend a maintenance frequency during the walkthrough rather than a one-time clean.
Do you clean roofs on strata townhouse complexes?
Yes. We work with strata councils and property managers, schedule roofs building by building and supply resident notice wording. Roof cleaning can be combined with strata exterior washing so siding is washed after the roof work is finished.
Are your roof cleaning crews insured?
Yes. We carry $5,000,000 commercial general liability insurance, our staff are bonded, and we maintain active WorkSafeBC coverage. Crews are WHMIS-trained and follow site-specific safety procedures for work at height, and supervisors inspect and log every job.
How do I get a roof cleaning quote?
Call us or send a request with the building type, roof material if known and roof access details. We reply within one business day, book a free on-site walkthrough and send a written scope and quote.
Book a roof cleaning walkthrough
Tell us about your building and roof and we will recommend a safe cleaning method and send a written quote.