Residential Exterior Cleaning

Low-Pressure Roof Cleaning That Protects Your Shingles

Safely remove moss, lichen and black algae streaks without a pressure wand anywhere near your shingles.

5.0 (61 Google reviews)
Fully Insured
Call (902) 333-9929
Roof moss and algae treatment before and after

Enhanced Curb Appeal

A clean roof boosts your home's appearance from the street and adds to its value.

Protects Your Roof

Removing moss, lichen and algae prevents damage and extends the functional lifespan of your shingles.

Eco-Friendly Solutions

We use environmentally safe methods that are gentle on your home and the surrounding landscape.

Locally Trusted Service

As a Bedford-owned business, we prioritize quality and customer satisfaction on every job.

Those dark streaks running down your roof aren't dirt or age — they're a living cyanobacteria called Gloeocapsa magma, feeding on the limestone filler in your shingles. Halifax's humidity, salt air and freeze-thaw cycles make the HRM close to a perfect growing environment for it, which is why the problem shows up here more than in most other parts of the country.

It's more than cosmetic. The bacteria holds moisture against your shingles, which speeds up the loss of the granules that protect them from UV damage — quietly shortening your roof's lifespan. We treat it with a low-pressure application that kills the growth at the source, so it rinses away naturally over the following weeks instead of stripping granules the way a pressure washer would.

What's Included

  • Low-pressure application — no pressure wand on shingles
  • Treatment for moss, lichen & black algae streaks
  • Gutter check while we're up there
  • Safe for asphalt, architectural & cedar shingles

Investment

Roof Cleaning Pricing

Roof Soft Wash

$279 – $999

Most Halifax two-storey roofs land around $450–$699

  • Small roof (up to 1,500 sq ft): $279–$449
  • Medium roof (1,500–2,500 sq ft): $450–$699
  • Large roof (2,500–3,500 sq ft): $700–$999
  • Extra-large or complex roof (3,500+ sq ft): $1,000+, custom quote

Prices above cover our standard soft wash treatment for algae and black streaking (gloeocapsa magma) — what most Halifax roofs need. Heavy moss that requires manual removal before treatment adds $150–$350, depending on how much of the roof is affected.

Questions

Roof Cleaning FAQ

How does roof washing benefit my home?

Beyond curb appeal, it removes the biological growth that traps moisture against your shingles and shortens their lifespan — a modest cleaning now can delay a roof replacement conversation for years.

Is roof cleaning safe for my shingles?

Yes, when it's done the right way. We use low-pressure application, never a pressure washer directly on shingles, which is what causes granule loss and voided warranties.

How often should I have my roof cleaned?

Every 2–3 years is typical in the HRM given our climate, though homes on shaded or north-facing lots may need it sooner.

Do you use eco-friendly cleaning products?

Yes, and we pre-rinse and protect landscaping below the roofline before we start.

Can you remove moss from my roof?

Yes — moss and lichen respond well to the same low-pressure treatment we use for algae streaking.

Related Services

You might also need

Ready for roof cleaning?

Get a free, no-pressure quote and see why Halifax homeowners give us 5.0 stars.