Fully insured
Roof cleaning & moss removal in Halifax, NS
Easy roofs aren’t what built our reputation.
ProCare Halifax specializes in roof cleaning and moss removal for deep, established growth, stubborn black streaks and lichen throughout Halifax and HRM. We never scrape moss from shingles, and the harder a roof is to reach, the more our experience shows.
Every roof wash includes a 2-year limited warranty and a complimentary gutter cleaning.
BBB Accredited
Fall-arrest and MEWP certified
What is growing on your roof?
(Algae, Moss, Lichen)
Black streaks on roof
Gloeocapsa magma
Black streaks are caused by Gloeocapsa magma, a type of blue-green algae. It is not dirt or mold, but an airborne bacteria that is alive and feeds on the limestone filler in your asphalt shingles. As it spreads, it causes dark streaks to form, which weaken the shingles over time, making them brittle and shortening their lifespan.
Moss growth on roof shingles
Bryophyta
Moss growth is very common on roofs in wooded and damp areas in Rockingham, Grand Lake, and Williams Lake, where shade and moisture allow it to spread easily. It is a pillowy plant that works under the shingle edges as it spreads. It can grow between where shingles overlap, curling up and allowing more water to seep underneath.
White patches on shingles
Fungus and algae in symbiosis
Lichen forms hard, crusty patches that attach firmly to the shingle surface. As it remains in place, it can retain moisture and contribute to the loss of the protective mineral granules on asphalt shingles. Because of that strong attachment, lichen must be treated carefully rather than scraped away.
Why moss and algae thrive on Halifax roofs
Halifax’s coastal climate brings frequent rain, fog and humidity. Shade and tree cover can prevent shingles from drying quickly, especially on north-facing roof slopes. These damp conditions create an ideal environment for moss, algae and lichen.
Black roof streaks commonly come from Gloeocapsa magma, a type of cyanobacteria often referred to as blue-green algae. It spreads through airborne spores and becomes more visible in damp, shaded conditions. On asphalt shingles, it can use components of the limestone filler and create dark staining across the roof.
Our roof wash process
- Pre-inspection: We assess your roof’s condition, take photos, and identify growth or stains so you can see exactly what we address
- Property protection: We confirm that all outdoor furniture, valuables, and potential hazards are cleared from the work area. Our team follows a plant protection protocol to safeguard your landscaping before we begin
- Treatment: We apply a controlled, low-pressure treatment tailored to the roof’s condition and level of growth. It targets moss, algae and lichen without the aggressive force of pressure washing
- Final rinse and cleanup: We thoroughly rinse surrounding surfaces and landscaping and remove loose debris from the property. We never scrape established moss or lichen from shingles. Once treated, the remaining growth releases naturally as its attachment to the roof breaks down.
- Post-service report: We provide a summary of our work along with photos so you can see the results on every surface
Service information reviewed by JJ Gionet, owner-operator of ProCare Halifax. JJ holds fall-arrest, MEWP and Nova Scotia pest-control certifications and oversees ProCare’s roof-cleaning work throughout Halifax and HRM.
Why Halifax homeowners choose ProCare Halifax
- HRM’s leading roof cleaning specialists
- Every roof wash includes complimentary gutter cleaning and a 2-year limited warranty
- Certified pest control technicians. Roof pigeon cleanup and deterrent work in the same visit
- BBB Accredited, licensed, and fully insured
- Fall arrest and MEWP certified – Steep, tall and hard-to-access roofs are routine work
- Free estimates. Transparent scope and no pressure
Please note: Complimentary gutter clearing refers to removing internal debris to support proper drainage and does not include exterior gutter brightening.
ProCare Halifax Reviews
Roof cleaning reviews from Halifax homeowners
“I had an excellent experience with JJ at ProCare. He removed all the moss on my roof, had it treated, and cleaned the exterior including all the windows. He went above and beyond and cleaned the steps and driveway as well. He was easy to communicate with, timely, and did a fantastic job. The house looks immaculate, I would absolutely use ProCare again, and would recommend them to anyone looking for this service.”
Brady Crewe
Halifax, NS
“Last year JJ did a superb job of cleaning moss off our roof and treating it. He also found a few other minor issues which he fixed. Excellent work, quickly done, at an affordable price, and his alertness to other problems saved us money and hassle down the road. Meanwhile, so far no moss this year! Highly recommended!”
Duncan MacIntosh
Halifax, NS
JJ and his colleague Blake did a first class job on our roof (moss removal), gutters, deck railing etc. Speedy responses with accurate quotation, professional approach employing state of the art safety equipment and protocols, flexible, courteous and prompt communication……all in all a first class job.
Martin J
Halifax, NS
Roof cleaning prices
How much does roof cleaning cost in Halifax?
Every complete roof wash includes a controlled low-pressure treatment, moss, algae and lichen treatment, complimentary gutter clearing and a 2-year limited warranty. See what affects roof cleaning prices in Halifax.
Smaller roof
$350 – $450
Smaller roofs, typically under 1,500 sq. ft. of roof surface, with simple rooflines, lighter buildup and straightforward access.
Medium roof
$450 – $650
Medium roofs, typically 1,500–2,000 sq. ft. of roof surface, with standard rooflines, moderate buildup and straightforward access.
Larger roof
$650 – $850+
Larger roofs, typically over 2,000 sq. ft. of roof surface, or roofs with steep slopes, difficult access or heavy established growth.
Roof-area ranges are approximate. Pitch, access, roof complexity and the level of organic growth affect the final price.
Common questions
FAQs
What is roof cleaning?
Roof cleaning is the professional removal of moss, algae, lichen, and black streaks from your roof using a controlled, low-pressure soft washing method.
In Halifax’s damp climate, organic growth thrives on asphalt shingles. Over time, this growth traps moisture, lifts shingles, and shortens your roof’s lifespan. Professional roof cleaning safely treats and eliminates the growth at its source without damaging the shingles.
Unlike high-pressure washing, which can remove protective granules, damage shingles and conflict with manufacturer instructions, roof cleaning uses a specialized treatment that:
- Treats moss and algae throughout the affected growth
- Gently removes staining and black streaks
- Protects shingle integrity
- Helps extend the life of your roof
- Improves curb appeal immediately
How often should I have my roof cleaned?
Moss and algae can eventually return because shade, moisture and surrounding trees continue to affect the roof. Cleaning frequency varies by property and exposure. ProCare Halifax includes a 2-year limited warranty with every complete roof wash. If covered growth returns under normal conditions during that period, contact us so we can assess the affected area.
Is it algae or moss on my roof?
Moss often appears as small green, hair-like fuzz or patches. Moss will spread and grow up the pitch of the roof, which causes shingles to lift or curl. The lifting of shingles will eventually bring unwanted water into a building causing moisture damage, wood rot, and even roof leaks.
Algae are flat black stains or streaks, with a slimy or slick green sheen. Algae thrives in damp areas and holds moisture, speeds up the rot that will cause your roof to leak
What roof treatment does ProCare Halifax use?
ProCare Halifax uses a professional roof-wash treatment containing sodium hypochlorite diluted to a concentration appropriate for the roof’s condition and level of organic growth. Surfactants help the treatment remain on the surface long enough to target moss, algae and lichen effectively. We follow controlled application, property-protection and rinsing procedures throughout the service.
s pressure washing safe for asphalt shingles?
High-pressure washing should not be used on asphalt shingles. The force can loosen protective granules, lift shingle edges and unnecessarily accelerate surface wear. ProCare Halifax uses a controlled, low-pressure roof-wash treatment that targets moss, algae and lichen without relying on aggressive water pressure.
How does ProCare protect plants, pets and surrounding property?
We use property-specific protection procedures before, during and after treatment. Depending on the site, these may include pre-rinsing, covering sensitive vegetation, controlling runoff and rinsing surrounding surfaces and landscaping. We ask clients to keep pets indoors and away from treated areas during the service and for three hours afterward. We explain any additional precautions before beginning work.
Where we work
Proudly serving HRM and surrounding communities
ProCare Halifax serves communities throughout Halifax Regional Municipality and along the South Shore. If you don’t see your community listed below, give us a call at 902-456-2760 or send us a message.
Halifax
Dartmouth
Bedford
Lower Sackville
Cole Harbour
Eastern Passage
Lawrencetown
Spryfield
Clayton Park
Timberlea
Hammonds Plains
Upper Tantallon
Prospect
Hubbards
Chester
Lunenburg
Waverley
Fall River
Enfield
Elmsdale
Dartmouth
Bedford
Lower Sackville
Cole Harbour
Eastern Passage
Lawrencetown
Spryfield
Clayton Park
Timberlea
Hammonds Plains
Upper Tantallon
Prospect
Hubbards
Chester
Lunenburg
Waverley
Fall River
Enfield
Elmsdale
Roof cleaning estimates
Request a free roof cleaning estimate
Request a clear, detailed estimate for professional roof cleaning and moss removal in Halifax and HRM today.