Hampshire · Ventilation duct cleaning
Liss ventilation duct cleaning
Ventilation duct cleaning for businesses, landlords and public buildings in Liss. CHAS, SafeContractor and ISO 9001, and fully insured.
- Blocked general extract ductwork
- Systems with no record of inspection or cleaning
- Construction dust left in ducts after a refit
Ventilation duct cleaning for kitchens and businesses in Liss
Dust in ventilation ductwork isn’t only a cleanliness issue. It slows the air, strains the fans and can be blown back out of the grilles. Cleaning restores the clear airway the system was designed with. If you have ductwork with too few access panels to clean and construction dust left in ducts after a refit, we can help.
For a building near Liss, the visit is planned around how it’s used, and the journey is planned ahead. The method doesn’t change: inspect first, clean, then record what was done.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.

- Place
- Liss (GU33)
- Region
- Hampshire
- Paperwork
- Photo report after every visit
- Quotes
- Fixed quote, normally within a working day
- Hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
The process
The visit has three parts: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes a weekend for a modest system, with large buildings phased floor by floor. Because the survey comes first, a visit to Liss can usually be finished without a second trip.
- We agree timings that suit the building, including evenings and weekends.
- We open the ductwork through its access panels.
- Before photos are taken and the ducts cleaned section by section.
- We clean the grilles and diffusers and put them back.
- After pictures are taken and the certificate and report issued.
Before we arrive
- Let us know when the site is closed or quiet
- Tell us where we can park and unload
- Have your last certificate or report to hand
Get a fixed quote
To help us quote: where the site is, what it is and its opening hours, a few pictures and any previous report or certificate. Once you have those, ring 0345 646 2711 or use the quote form.
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Towns and villages near Liss
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What affects the quote in Liss
The price is fixed before any work begins. It takes into account:
- The scale of the work
- How easy every part is to reach
- Parking and loading at the site
- The times the site is available
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before we start.
What to send for a quote
To speed up the quote, please include:
- Detail shots of panels, filters and grilles
- The paperwork from the last visit, if you have it
- The site address and the type of premises
- Problems your staff have spotted
Need a price for ventilation duct cleaning? Please ring 0345 646 2711 or send us an email and tell us about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
Why deal with it now?
After building work, cleaning the ventilation before people move back in makes sense. Otherwise the dust from the works comes out of the grilles once it’s switched back on. It’s better to plan the work at a site near Liss than wait for a failure.
You will not find a price list here, because each job is priced on what it involves. For a fixed quote, call us on 0345 646 2711 or send us an email, and we will explain what it covers.
Why Liss businesses choose us
- Trading since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Out-of-hours work and a 24/7 emergency line
- Each visit written up, with photos
Take a look at what affects the cost and our accreditations and certificates.
What a clean won’t put right
An honest diagnosis matters more to us than a booking, so here’s what ventilation duct cleaning will not do:
- Leaks from roofs, pipes or walls into the ductwork
- Grease in kitchen extract systems, cleaned to TR19® Grease instead
- Building management settings that run the plant
Not sure which it is? You can ring 0345 646 2711, or email photos and we’ll tell you honestly before you book.
What the work covers
- Hospitals and care homes
- General extract ductwork
- Toilet extract systems
- Grilles and diffusers
- Offices and schools
- Supply ductwork
Multi-site and managed buildings
Keeping records across a portfolio is half the battle. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
From a single site to a large estate, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with photos.
What the work involves, part by part
Grilles and diffusers
Grilles and diffusers that are designed to come out are removed for cleaning, then put back.
Schools and colleges
We plan the work around the school calendar, with access agreed with the caretaker or site manager.
What ventilation duct cleaning looks like in Liss
There are about 8 care, childcare and hospital premises on the FSA’s food hygiene register in and around Liss, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Petersfield Community Hospital is the nearest hospital, about 3.6 miles south-west of Liss. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Liss is about 47 miles from central London, well within the area we cover across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
Hospitals such as Petersfield Community Hospital (about 3.6 miles south-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Liss are no different. If you run an office near Liss station, its supply ductwork can gather dust for years before anyone looks inside. If you manage a school such as Liss Infant School, ventilation cleaning is best booked for the holidays.
Liss is about 3 miles north-east of Petersfield, in Hampshire. Whether your site is in the middle of Liss or further out, we cover ventilation duct cleaning for every kind of premises, from a single unit to a large public building. Liss is one of 683 places in Hampshire we cover for ventilation duct cleaning. Our Portsmouth page covers sites nearby (18 miles or so).
Work in GU33 follows the same survey, fixed quote and written report as everywhere else we cover. Local streets include Station Road, Shotterfield Terrace and Greenfields, and we cover them all for ventilation duct cleaning. If your site is just outside Liss, we cover West Liss (1 mile south-west), The Mint (1 mile north-east), Liss Forest (1 mile north), Hill Brow (1 mile south-east) and Durford Wood (1 mile south). Larger places within reach include Havant (13 miles south), Horndean (11 miles south-west), Aldershot (15 miles north), Alton (8 miles north-west), Waterlooville (13 miles south-west) and Petersfield (3 miles south-west).
Landmarks near Liss
Locally, jobs take us to businesses close to Whistle Stop pub, among other places. Liss has its own railway station: Liss station. A little further out are Petersfield Community Hospital (3.6 miles south-west) and Bear Museum (3.5 miles south-west). Open spaces near Liss include Liss Riverside Railway Walk South and Wheatham Hill.
Common questions in Liss
Is Liss within the area you cover?
Yes, Liss is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Can the work in Liss be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Liss needn’t be disturbed. Let us know the hours you’re closed and we’ll book within them.
What is TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not law, but it’s the benchmark.
Which accreditations do you hold?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
What do you do with what you remove?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and we will quote them together.
Do you survey the system first?
Yes. We always survey first, on site or from photos and drawings, and then quote a fixed price.
Is a quote from photos possible?
Typically, yes. Send wide shots, close-ups of any access panels and anything that worries you, and we typically come back within one working day. Some sites still need a visit, and we will say so.
Looking after it afterwards
How long the results last depends on use and care. Here’s what we suggest:
- Watch for water stains around grilles
- Keep grilles and diffusers dusted
- Stick to the filter change schedule
- Make sure nothing is stacked against extract grilles
The report includes a recommended date for the next inspection, based on what we found. Put it in the diary now so it does not slip.
Keep filters changed on time. Overloaded or poorly seated filters let dust straight through.