Hertfordshire · Ventilation duct cleaning
Thundridge ventilation duct cleaning
TR19 air cleaning of general supply and extract ventilation ductwork in commercial buildings in Thundridge, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Toilet and washroom extracts full of fluff
- Supply ducts with years of dust inside
- Ductwork that hasn’t been inspected
When something else is needed
We won’t sell you work that does not address the problem, so these are the things it won’t cover:
- A system that is not designed to move enough air
- Damp or mould problems coming from the building fabric
- Grease in kitchen extract systems, cleaned to TR19® Grease instead
If you’re not sure, just ring 0345 646 2711 or drop us a line and we’ll give you a straight answer before you book.
Where we work
- Offices and schools
- Toilet extract systems
- Hospitals and care homes
- Grilles and diffusers
- Supply ductwork
- General extract ductwork
Ventilation duct cleaning in Thundridge
Supply ducts carry air into the rooms and extract ducts take it away. Over time, both collect dust and debris, some of which ends up back in the rooms. We clean the ductwork, grilles and diffusers to TR19® Air. If you have dust marks around grilles and ceiling diffusers and damp or stale smells from grilles, we can help.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
The paperwork matters as much as the work. Each visit is written up with pictures, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Where
- Thundridge (SG12)
- Wider area
- Hertfordshire
- Records
- Report and photos after the visit
- Quote
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Updated
- 30 October 2026

In-house cleaning or a specialist?
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
The process
When we arrive, we check the system against the survey or the photos you sent. If anything is different, we talk it through with the person on site before carrying on. From there, it takes a day or less for a small system and a series of visits for a large one. If you can send photos, we can arrive in Thundridge knowing what to expect.
- We agree timings that suit the building, including evenings and weekends.
- We open the ductwork through its access panels.
- We photograph the ducts, then clean each section in turn.
- We clean the grilles and diffusers and put them back.
- We take after photos and send the certificate and report.
How to prepare
- Tell us about site rules, permits or sign-in
- Allow time for equipment near the work to be turned off and cool down
- Find the previous report, if there is one
Ask for a quote
To help us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Once you have those, give us a ring on 0345 646 2711 or use the quote form.
Read more
Looking after it afterwards
Looking after the system between visits is straightforward, and it helps at the next visit:
- Report dust blowing from grilles straight away
- Book the next inspection on the date the report recommends
- Switch the ventilation off or cover grilles during dusty building work
- Keep vents and grilles clear of shelving and stock
Change filters on schedule so the clean ducts stay clean. Overdue filters let dust straight back in.
TR19® Air works through regular inspection. Scheduled inspections spot dust before it becomes a major job.
What ventilation duct cleaning looks like in Thundridge
Food Standards Agency records list about 7 schools, colleges and universities, about 3 caring premises (care homes, nurseries and hospitals) and about 3 hotels and B&Bs registered as food businesses within 1.5 miles or so of the middle of Thundridge. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. We cover Thundridge, about 23 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible. Thundridge’s nearest hospital, Hertford County Hospital, is about 3.6 miles south-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
For schools like Thundridge Church of England Primary School, the holidays are the usual time to inspect and clean ventilation. Healthcare buildings such as Hertford County Hospital, about 3.6 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Thundridge, yours matters too.
Thundridge is about 1 mile north of Ware, in Hertfordshire. For ventilation duct cleaning in and around Thundridge, please phone us on 0345 646 2711 or email us for a fixed quote. Our area covers London and the South East, including Thundridge. Thundridge is one of 381 towns, villages and districts in Hertfordshire where we work for commercial clients. We also work in London, about 23 miles from Thundridge.
All of SG12 is covered for ventilation duct cleaning, from busy streets to back roads. Whether your site is on Woodlands Road, Cold Christmas Lane and Ducketts Wood or a nearby road, our technicians can take on the work. Other places close to Thundridge include Wadesmill (1 mile north), Cold Christmas (1 mile east), High Cross (1 mile north), Ware (1 mile south) and Tonwell (2 miles west). Larger places within reach include Stevenage (8 miles north-west), St Albans (14 miles south-west), Bishop's Stortford (8 miles east), Welwyn Garden City (7 miles west), Harpenden (14 miles west) and Hitchin (13 miles north-west).
Near you in Thundridge
Typical jobs here are in premises near Sow & Pigs pub and The Chauncy School, among other places. For rail, the closest station is Ware station, about 1.8 miles south. Other landmarks nearby include Hertford County Hospital (3.6 miles south-west) and Barrowfield (2.5 miles south). Open spaces near Thundridge include King's Meads.
Leave it or put it right?
Facilities teams are regularly asked to show evidence of ventilation hygiene. A TR19® certificate and photo report from a recent clean give them that. It’s worth booking a check, because nobody sees inside a duct day to day.
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
Why us?
- We are fully insured
- Every job surveyed first
- CHAS and SafeContractor accredited, with ISO 9001
- One contact for all your sites in London and the South East
What affects the cost of ventilation duct cleaning
The diagnosis comes before the price. We look at:
- A single visit or a regular plan
- Access, including roofs, risers and ceiling voids
- The condition we find in the survey
- Any permits to work or inductions
We don’t list prices on the website, because each job is priced on what it involves. For a fixed quote, call us on 0345 646 2711 or drop us a line, and we’ll talk you through it.
What to send for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Detail shots of panels, filters and grilles
- Problems your staff have spotted
- How we’d reach plant on a roof or in a plant room
- Your last certificate, test record or report
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before work begins.
Thundridge: your questions answered
Will you come out to Thundridge?
Yes, Thundridge is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Can ventilation in schools around Thundridge be cleaned out of term?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 7 schools, colleges and universities with registered kitchens within about a mile and a half of Thundridge. Booking early in the term gives the best choice of holiday dates.
What happens if parts of the ductwork can’t be reached?
We clean what we can reach and note the rest. Extra access panels can solve it, and we can fit them.
Which sectors do you work in?
Any site with a kitchen or a ventilation system to look after, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.
What happens to the waste?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. None of it is left on site.
Can you set up regular visits?
Yes, of course. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
Are you insured?
Yes, fully. We also hold CHAS and SafeContractor, for sites that check contractor safety.
What should I send you?
Some pictures and a quick description of the system plus the address and your hours. We will ask for anything else we need.
For landlords and multi-site operators
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We’re happy to deal with either side, and the report can go to both.