Premium Exterior Soft Washing Services in Belfast
Our Services
Roof Cleaning
Gutter Cleaning
Soft Washing
Power Washing
Carpet Cleaning
Our Locations
Belfast
Bangor
Newtownards
Carryduff
Gentle. Effective. Lasting.
Professional Soft Washing Services
Restore the beauty of your property's exterior with our specialist soft washing solutions. Using low-pressure cleaning methods and eco-friendly treatments, we safely remove algae, moss, lichen, and stains while protecting delicate surfaces.
Our Services
Related Soft Washing Services
01
K-Rend Wall Soft Washing
Approved low-pressure chemical washing clearing red and green algae stains from colored wall render without scraping off your top finishes.
02
Brickwork & Masonry Restoration
Specialized biocide washes sinking into brick pores to dissolve structural carbon grime and kill dark mold spores safely without damage.
03
Exterior Cladding Soft Washing
Gentle low-pressure cleaning clearing grease and road film from commercial metal or PVC cladding panels without scratching paint layers.
04
Domestic Patio Soft Washing
Targeted chemical soft washes neutralising stubborn black spot lichen and moss spores on delicate natural stone garden patio flagstones cleanly.
Ready To Refresh Your Property's Exterior?
Remove stubborn algae, moss, and organic staining with our professional soft washing services. Contact GNT Cleaning today for a free, no-obligation quote and long-lasting results.
Why Choose US
The GNT Cleaning Difference

K-Rend Approved Cleaning Methods
We use soft wash systems that fully align with modern render manufacturer rules, protecting your building warranty.

Extended Biocide Defense
Our treatments leave an invisible, eco-friendly protective layer behind, keeping surfaces cleaner for significantly longer than standard cold power washes.
FAQ's
Frequently Asked Questions?
Will low-pressure soft washing remove deep staining caused by atmospheric carbon?
Yes. We use specialized carbon-dissolving chemical formulas that break down heavy industrial pollution stains, allowing them to be gently rinsed away without damaging the brickwork.
How frequently should a commercial building exterior be cleaned in Northern Ireland?
For standard properties, a professional deep clean every 2 to 3 years is ideal. However, buildings exposed to coastal salt or high industrial traffic may require annual maintenance to keep surfaces in top condition.
Will the soft wash chemical solutions bleach or change the color of colored wall render?
No. Our chemical treatments are precision-calibrated to destroy organic spores like red and green algae while preserving the original pigmentation and dye structure of K-Rend or Weber wall coatings.
Do your exterior building cleaning packages include the washing of external window profiles?
Yes, our full building wash down services include rinsing down frames, glass, and sills to ensure all chemical residues are cleared, leaving the facade clean and spot-free.
Can you wash historic properties built with traditional lime mortar?
Yes. Our specialized low-pressure soft washing systems avoid abrasive pressures completely, ensuring delicate historical masonry and lime mortar lines are kept intact during stain removal.


