Is DOFF safe for heritage stone?

Yes. Superheated steam at low pressure removes the soiling without abrading the substrate. We sample-clean a test area first.

What happens to the run-off?

Contained, captured and disposed under the chemical specification. It's set out in the RAMS pack.

Will it damage the paintwork?

The cleaning regime is matched to the substrate. We won't strip paint unintentionally.

Can it be done at height?

Yes. MEWP or scaffold, chosen at survey to suit the elevation and access.

How much does it cost?

Substrate-dependent. We won't quote without a site visit because the chemistry is too sensitive to price from a description.

Operative DOFF-steam cleaning a stone facade. A Star Decorators

DOFF · chemical · jet & soft-wash facade cleaning

Heritage-safe facade cleaning, matched to the substrate.

DOFF superheated steam, chemical and jet-wash cleaning for facades and cladding across the UK. We match the method to the material first. Run-off contained, cleaning record on handover.

Request a site survey Call 077 6178 1304

DOFF

Trained operatives

Heritage

Safe by default

Matched

Chemistry to substrate

Contained

Run-off captured

01 / service

When the facade is dirty but sound, and a wrong call on the method would cause damage.

The facade or cladding is soiled but structurally sound.
The substrate is heritage stone, brick or something pressure-sensitive.
Cleaning is the preparation stage before a coating or restoration.
Run-off must be contained and disposed of compliantly.

02 / method matters

Why the cleaning method is the whole job.

Get the method wrong and you damage the substrate or strip the finish. We sample-clean a test area first. The chemistry is fixed before anything touches the elevation.

Pressure damage

High-pressure washing on soft stone or heritage brick erodes the surface and leaves it open to weathering.

Wrong chemistry

A chemical that suits one substrate etches or stains another. The chemistry matches the material. Not the price, not the deadline.

Uncontrolled run-off

Cleaning chemicals reaching drains or planting is an environmental breach. Run-off is contained and disposed under the spec.

Stripped coatings

An over-aggressive regime removes paint and protective finishes you meant to keep. We match the regime to the substrate, not the worst-case scenario.

03 / process

A structured process, not guesswork.

01 · Survey
Substrate test, sample area, agree chemistry or pressure with you.
02 · Specification
DOFF, chemical, jet or soft-wash, selected per substrate. Run-off plan confirmed.
03 · RAMS
Project-specific RAMS with chemical handling and run-off containment.
04 · Delivery
Containment, cleaning, and neutralisation where the chemistry requires it.
05 · Handover
Cleaning record and before/after photos.

04 / sectors

Method chosen for the building, not the schedule.

Heritage & listed

DOFF superheated steam at low pressure lifts soiling from stone and brick without abrading the surface. Test area first, every time.

Retail & commercial

Shopfront, facade and entrance cleaning around live trading, on its own or as preparation before restoration work.

Industrial & cladding

Jet and soft-wash for metal cladding and hard surfaces, often the preparation stage before a coating system.

Estates & FM

Planned cleaning cycles across managed estates. Access and containment scoped site by site.

Scope · included

DOFF system steam cleaning
Chemical specification per substrate
Run-off containment and compliant disposal
Cleaning record on handover

Scope · not included

Coating application (separate specification)
Stone repair
Pointing and re-grouting

DOFF steam cleaning preparing a facade for coating

Recent work

DOFF & chemical clean: surface preparation

A DOFF and chemical cleaning programme to bring a soiled facade back to a sound, paint-ready surface. Sample-tested first, run-off contained throughout, cleaning record on handover ahead of the coating works.

Frequently asked

Answers before the survey, not after the quote.

Is DOFF safe for heritage stone?: Yes. Superheated steam at low pressure removes the soiling without abrading the substrate. We sample-clean a test area first.
What happens to the run-off?: Contained, captured and disposed under the chemical specification. It's set out in the RAMS pack.
Will it damage the paintwork?: The cleaning regime is matched to the substrate. We won't strip paint unintentionally.
Can it be done at height?: Yes. MEWP or scaffold, chosen at survey to suit the elevation and access.
How much does it cost?: Substrate-dependent. We won't quote without a site visit because the chemistry is too sensitive to price from a description.

Request a site survey

Tell us about the facade.

Substrate, what's soiling it, access and whether it's leading into coating works. We typically reply within one working day with a site-survey window.

077 6178 1304 · mobile office@astardecorators.com