Patio Cleaning in Knowle
Professional jet washing restores Knowle patios to like-new condition. Indian sandstone, porcelain, concrete and block paving — cleaned, biocide treated and optionally sealed. Rated 5.0 from 115 Google reviews. Free quotes.
Professional Patio Jet Washing in Knowle
Rear patios across Knowle gardens are slab and concrete. Shade lines and algae clear evenly at the right pressure per surface.
What's Included
- Indian Sandstone Clean
Low-to-medium pressure wash safe for porous natural stone — no etching or surface damage.
- Porcelain & Slate Clean
Higher pressure safe for dense porcelain and slate — removes surface algae and soiling completely.
- Black Spot Treatment
Targeted biocide applied to Gloeocapsa algae before washing — lifts stubborn black spot marks.
- Algae & Moss Removal
Rotary surface cleaner delivers even pressure — no streaking or line marks across the slab.
- Joint & Border Clean
Weed growth removed from joints; borders and edging cleaned with a hand lance.
- PureSeal Approved Sealing
As a PureSeal Approved Applicator, we apply professional-grade sealants to protect your patio against staining, algae regrowth and weathering.
Ready to get your patio back in Knowle? Get a free, no-obligation quote today.
Get a Free QuoteHow It Works
- 1Free Assessment
We identify stone type, condition and any black spot or lichen before quoting.
- 2Pre-Treatment
Biocide applied to algae and black spot staining, allowed to dwell before washing.
- 3Pressure Cleaning
Rotary surface cleaner at the right pressure for your patio material — no streaks.
- 4Edge Detailing
Hand lance used for borders, steps and any areas the surface cleaner can't reach.
- 5Final Inspection
We walk the job with you before we leave — no surprises, no shortcuts.
Slippery patio or green sandstone in Knowle? We can usually quote within 24 hours.
Call 07474 939 398Before and After
Real results from patio cleaning jobs near Knowle.
Patio cleaning — full algae, moss and black spot removed
Before AfterPatio Cleaning Knowle FAQ
Do you cover Knowle?
Yes. Knowle is one of our regular service areas. We cover all streets and postcodes within Knowle and the surrounding area. Call 07474 939 398 to confirm coverage and arrange a free quote.
How much does patio cleaning cost in Knowle?
Patio cleaning in Knowle typically starts from around £3 per square metre depending on surface type, condition and access. We provide free, no-obligation on-site quotes — call 07474 939 398 or use our contact form.
Will jet washing damage my Indian sandstone in Knowle?
Not when done correctly. We adjust pressure to suit the stone — sandstone is softer than concrete and requires a lower pressure and wider fan angle. We never use a pin-point lance on natural stone. The result is a thorough clean without etching or surface damage.
How long does patio cleaning take in Knowle?
A standard patio (around 20–30m²) takes 2–3 hours. Larger areas, heavily soiled surfaces or patios with black spot lichen may take longer. We will give you a time estimate when we visit to quote.
What is black spot and can you remove it from my patio in Knowle?
Black spot is caused by Gloeocapsa algae — a stubborn organism that penetrates porous stone and appears as dark circular marks. We treat it with a targeted biocide before pressure washing. Most black spot lifts completely, though severe or long-standing cases may require a second treatment.