Fareham · Gosport · South Hampshire Mon–Fri 8am–5pm
windowcleaning@fantasticfinish.co.uk 07469 876122
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Softwashing · South Hampshire

Softwashing —algae killed at the root,not just rinsed off.

SoftWash UK Certified low-pressure cleaning of render, patios and driveways. Algae, moss and biofilm killed at the source and rinsed clear — backed by a 12-month guarantee across Fareham, Gosport and South Hampshire.

Quoted on visit · 5★ Google rated · £1M insured · free re-clean

Freshly softwashed cream render around a UPVC sash window — biocide-cleaned finish in South Hampshire

12-Month Softwash Guarantee

Render, patios & driveways

SoftWash UK Certified

Approved Applicator (Cert. 8n8uvkpwyw)

£1M Public & Products Liability

Hiscox softwash-specific policy

NASW Member

National Association of Soft Wash

Free Re-clean Promise

If you're not 100% happy

The service, in plain English

Softwashing,
done properly —
end to end.

No jargon, no upsell. Just what you're actually buying, when it's worth doing, and why a professional makes the difference.

What it is

Softwashing is a low-pressure cleaning method that uses a specialist biocide solution to kill algae, lichen, moss and biofilm at the root, then rinses the surface clear at safe water pressure. Currently offered on render, patios and driveways (no roof cleaning yet).

Who it's for

Homeowners across Fareham, Gosport, Stubbington, Portchester, Whiteley, Paulsgrove, Cosham, Havant and Leigh Park with green or black-stained render, mossy patio slabs, or driveways that have gone dark with biological growth.

When you need it

Best done in spring or autumn when temperatures support effective biocide dwell time. Most properties benefit every 2–3 years; an optional biocide top-up between full cleans extends the result significantly.

Why professional matters

Jet-washing alone removes the visible top layer of growth but leaves the spores embedded. Within months the surface re-greens. Softwashing kills the organism, which is why a properly softwashed surface stays cleaner for years, not weeks.

What happens if you leave it

Small problem now.
Expensive problem later.

Green render

Algae and biofilm on render reads as 'tired house' from the road. Painting over it doesn't fix it — the organic layer just reappears through the paint.

Slippery patios & driveways

Moss and algae on paving aren't just cosmetic — they're a slip hazard, especially in autumn and winter. Insurers take it seriously, and so should you.

Jet-wash damage

DIY jet-washing render and old block paving at the wrong pressure pits the surface, blows out joint sand, and accelerates re-growth. The fix costs more than doing it properly the first time.

Quick re-greening

A surface that's just been blasted clean with water re-greens within a season. The biological cause was never addressed.

How the job runs

A clear, repeatable
5-step process.

  1. 01

    In-person site visit

    Softwashing quotes are always visited in person — surface type, exposure and growth severity all change the spec.

  2. 02

    Bespoke quote in writing

    A clear written quote including any optional biocide top-up to extend longevity. Sent same-day where possible.

  3. 03

    Site protection

    Plants, garden features and entry points protected before treatment. Pets brought inside. Surrounding hard surfaces pre-wetted.

  4. 04

    Low-pressure biocide treatment

    Specialist biocide solution applied at low pressure across the surface, with the dwell time needed to penetrate and kill the growth at the root.

  5. 05

    Controlled rinse + 12-month guarantee

    Surface rinsed at a safe pressure once the biocide has done its work. Backed by a 12-month workmanship guarantee from the day of the clean.

What you actually get

Concrete outcomes.
No fluffy promises.

Kills, doesn't smear

Biocide kills the algae and moss at the root — not 'pushes it sideways' like a pressure wash would.

12-month guarantee

If treated render, patios or driveways re-grow within 12 months, I come back and re-treat free of charge.

Safer for surfaces

Low pressure means no pitting, no blown-out sand, no damaged pointing, no etched render.

Longer-lasting result

Because the cause is addressed, a softwashed surface stays cleaner for years — usually 2–3× longer than jet-washing alone.

Optional biocide top-up

A maintenance biocide application between full cleans extends results significantly. Priced as an optional extra on the original quote.

Specifically insured

Softwashing is covered under a dedicated £1M public & products liability policy with Hiscox — separate from the general window/gutter cover.

Method, materials & detail

The proper standard —
explained.

Softwashing is a regulated, certified discipline — not a marketing word for a gentle jet-wash. Here's the standard the work is delivered to.

SoftWash UK Certified Applicator

All softwashing is delivered by a SoftWash UK Approved & Certified Soft Wash Applicator (Certificate of Competence ID 8n8uvkpwyw, issued April 2026, valid to March 2029). The business is also listed on the SoftWash UK applicator database and an NASW member.

Render cleaning

Algae, lichen and biofilm killed and rinsed clear from textured render, monocouche, K-rend and traditional rendered walls. Surfaces left without etching, pitting or 'tide' lines often seen with jet-washing.

Patio & driveway cleaning

Block paving, Indian sandstone, slabs and concrete drives treated to remove green and black biological staining. Re-sanding of block-paving joints is intentionally not included — quoted by specialists if needed afterwards.

Optional biocide top-up

An additional biocide application can be added either at time of clean or as a 6–9 month maintenance visit. This is the single biggest factor in how long the surface stays clean.

What we don't offer yet

Roof softwashing isn't offered — the dedicated equipment isn't in place. The 12-month guarantee covers render, patios and driveways only. Honest scope, properly delivered, beats overselling and apologising.

Specific insurance cover

Softwashing carries its own £1,000,000 public & products liability policy with Hiscox, separate from the general window/gutter/jet-wash cover — because the work involves chemistry, not just water.

Recent work

Real softwashing,
from local homes.

See more of our work
Softwashed render elevation around a sash window — algae-free, uniform cream finish
Areas covered

On the round across
South Hampshire.

Fareham-based and covering the surrounding towns and villages. Not sure if you're in range? Send a postcode and you'll have an answer the same day.

Get my free quote
  • Fareham
  • Gosport
  • Stubbington
  • Portchester
  • Whiteley
  • Paulsgrove
  • Cosham
  • Havant
  • Leigh Park

Booking a softwashing outside this list? Get in touch — slots are sometimes available on round-edges.

Common questions

Good to know
before you book.

Anything not covered here? Call Chris on 07469 876122.

  • Always quoted from an in-person visit — surface, area and growth severity all change the spec. A written quote is sent the same day where possible.
Ready when you are

Send a photo,
get a price —
usually the same day.

Tell Chris what needs cleaning and roughly when. You'll get a clear written price and a slot that works for you — no pressure, no automated follow-ups.

£1M insured SoftWash UK Certified Free re-clean promise
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