
Softwashing
Softwashing in Kent
Low pressure biocide treatment for render, roofs and surfaces water alone would damage.
Softwashing solves a problem pressure washing cannot: how to clean a surface that would be damaged by force. Instead of relying on water pressure, it applies a cleaning solution at low pressure and lets the chemistry break down the algae, lichen and organic staining.
It is the standard approach for render, painted surfaces, cladding and most roof coverings — anywhere that a lance would leave marks, drive water into the substrate or strip the finish.
What the job includes
- Surface assessment and test area
- Protection of planting, paths and adjacent surfaces
- Low pressure application of a suitable biocide solution
- Dwell time, agitation and rinsing as the surface requires
- Follow-up advice on what to expect over the following weeks
- Combination work where part of the property suits pressure washing instead
Surfaces suited to softwashing
- Render, including K-Rend and other through-coloured systems
- Painted masonry and pebbledash
- Roof tiles and slate
- Cladding, fascias, soffits and uPVC
- Conservatory roofs and frames
Why it is done this way
What you get with our softwashing
No pressure damage
The solution does the work, so there is no force driving water behind render or lifting a painted finish.
Treats what water leaves behind
Biocide kills the organism rather than just knocking the visible growth off, which is why results last longer.
Even coverage
Whole elevations are treated consistently instead of showing clean patches where the lance reached.
Care taken around planting
Borders, lawns and adjoining surfaces are protected and rinsed as part of the job.
Our process
How the visit runs
- Step 1
Identify the surface
Confirm the material and finish, and agree a test area.
- Step 2
Protect
Cover or pre-wet planting and shield anything that should not be treated.
- Step 3
Apply and dwell
Low pressure application, left to work for as long as the surface needs.
- Step 4
Rinse and review
Rinse down, then explain how the surface will continue to improve.
Recent work
Softwashing — recent projects
Google reviews
Rated 5.0 from 39 Google reviews
Verified feedback from homeowners, landlords and businesses across Kent and the surrounding counties.
39 reviews on Google
“What a fantastic job Rez did on our Sandstone patio and v old brick patio and paving around the house. The results were amazing stupidly I forgot to take before pics. The communication was great and v prompt to get out to quote. Would highly recommend we are really pleased with how nice everything looks. Thanks Rez great job.”
Julie Hazzard
Patio cleaning · 3 months ago
“Worked very hard! Very polite, considerate to neighbours and we were delighted! We still have people asking if we got a new driveway! Would totally recommend. See you next year!”
Wendy Shorts
Driveway cleaning · 2 months ago
“Excellent gutter cleaning service. Prompt & punctual. Gave detailed report on work completed and on the condition of our guttering and downpipe. Will definitely use this service again and will recommend to others.”
Phil B
Gutter cleaning · 6 months ago
“I can’t believe the change to the patio and paths surrounding the house! It has been transformed from a dull and depressing monotone with all kinds of dirt and growths in a matter of hours. Rez was a pleasure to have around, very polite and professional.”
John Watson
Patio & path cleaning · 4 months ago
“Rez was professional and polite, the whole job was done in a day at a very competitive price. No mess at all, an excellent result, I am very happy. Will certainly have him back next year and would certainly recommend Under Pressure to anyone who needs cleaning done. Thank you.”
Jennifer Lucas
4 months ago
Questions
Softwashing FAQs
What is softwashing?
Cleaning a surface with a low pressure application of a biocide solution rather than with water pressure. The chemistry breaks down algae, lichen and organic staining, and the surface is then rinsed.
What is the difference between pressure washing and softwashing?
Pressure washing removes dirt by force and suits hard, durable surfaces such as concrete and block paving. Softwashing removes biological growth by treatment and suits render, painted surfaces and most roofs.
Is softwashing suitable for render?
It is generally the recommended method for render. High pressure can crack, mark or saturate a rendered elevation, whereas a low pressure treatment cleans it without that risk.
Will it harm my plants?
We protect and pre-wet planting, control overspray and rinse afterwards. Tell us about anything particularly precious and we will take extra care around it.
How long before I see results?
Some surfaces clean up immediately. On heavily colonised render and roofs the improvement continues over several weeks as treated growth breaks down and weathers away.
Where we work
Softwashing across Kent and surrounding counties
- Softwashing in Maidstone
- Softwashing in Bearsted
- Softwashing in Kings Hill
- Softwashing in West Malling
- Softwashing in Aylesford
- Softwashing in Rochester
- Softwashing in Chatham
- Softwashing in Gillingham
- Softwashing in Tonbridge
- Softwashing in Tunbridge Wells
- Softwashing in Sevenoaks
- Softwashing in Ashford
- Softwashing in Canterbury
- Softwashing in Sittingbourne
- Softwashing in Faversham
- Softwashing in Whitstable
- Softwashing in Medway
- Softwashing in Gravesend
- Softwashing in Dartford
- Softwashing in Folkestone
- Softwashing in Dover
- Softwashing in Thanet
- Softwashing in Cranbrook
- Softwashing in Crowborough
- Softwashing in Uckfield
- Softwashing in Hastings
- Softwashing in East Grinstead
Related services
Roof Cleaning
Moss removal and softwash treatment, with the method chosen to suit the covering.
Full Exterior Cleaning
Roof, render, gutters, fascias and hard surfaces handled in one planned visit.
Patio Cleaning
Bring sandstone, porcelain and paving back to their original colour before summer.
Advice worth reading first
Softwashing vs pressure washing: which does your surface need?
Use pressure on paving and concrete. Use a low-pressure biocide softwash on roofs, render, cladding and paintwork. Getting it the wrong way round is what causes damage.
Seven signs your roof needs cleaning
Moss holding water against tiles, debris in the valleys and a gutter that keeps blocking are the three that matter most.
The best time of year to clean your property exterior
Spring and early autumn are the sweet spots. Gutters go late autumn, roof softwashing works nearly year-round, and winter is the quietest time to book.
Free quotes across Kent & surrounding counties
Arrange your softwashing
Send a few photographs of the areas you need cleaning and we will return a fixed written price. No pressure, and no changes on the day.
Prefer to talk? Call 07865 728204 or 01622 910555, or email contact@underpressure-kent.co.uk.


