Hertfordshire · Ductwork cleaning
Ductwork cleaning in Bernards Heath, Hertfordshire
For ductwork cleaning in Bernards Heath, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- A rancid smell from the extract duct
- Readings above 200 microns from a grease thickness test
- Proof of duct cleaning for the insurer
Your questions about ductwork cleaning in Bernards Heath
Can you clean school kitchen extracts in Bernards Heath during the holidays?
Yes. The holidays are the usual time for school work. With about 15 schools and colleges on the FSA’s register within roughly a mile and a half of Bernards Heath, it pays to plan holiday dates ahead. You can ring 0345 646 2711 or email us with the dates the site is empty.
Do you work at weekends in Bernards Heath?
Yes, we can come after you close and finish before you open. That way a site in Bernards Heath does not have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Is TR19 a legal requirement?
Not in itself. TR19® is the benchmark insurers, fire officers and EHOs check against, and many insurance policies ask for proof of TR19® cleaning. The law behind it is the Fire Safety Order 2005, which applies in England and Wales.
How often should kitchen ducts be cleaned?
The minimum depends on how long the kitchen cooks each day: 3-monthly for heavy use, 6-monthly for moderate and 12-monthly for light use. Grease readings may show it needs doing sooner.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’re fully insured and have been trading since 2009.
What information do you need?
A short description and a few photos plus the address and your hours. We’ll ask for anything else we need.
Do you have insurance?
Yes. Duct Doctor is fully insured, and the details are available on request.
Can you fit access panels in our ductwork?
Yes. We’ll point out where panels are needed, and we can fit them so those sections are cleaned in future.
Ductwork cleaning in Bernards Heath
Between the canopy and the fan runs the ductwork, hidden above ceilings and inside walls. Every horizontal run and vertical riser collects grease along the way and a fire in the duct can spread through the building. Our ductwork cleaning reaches inside the runs and risers through access panels, to BESA TR19® Grease. We are often asked to deal with duct runs that can’t be reached and a duct nobody has opened in years, across bends and junctions, horizontal duct runs and attenuators.
In a smaller place like Bernards Heath, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. Quieter kitchens still collect grease in the duct, just more slowly, so cleaning is planned around how much it cooks and what the readings show.
A written report with pictures follows every visit, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Location
- Bernards Heath (AL3, AL1, AL4)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Price
- Fixed quote, normally within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026

Part by part
Vertical risers
Risers are cleaned through panels at different levels. Where it cannot be reached safely, the report says so.
Multi-storey and shared buildings
In a shared building, the duct links the kitchen to other spaces, which makes keeping it clean all the more important. The paperwork suits landlords and managing agents.
Managing agents and facilities teams in Bernards Heath
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
Ductwork cleaning around Bernards Heath
The Food Standards Agency lists about 60 bars, pubs and nightclubs and about 4 hotels and guest houses as registered food businesses within 1.5 miles or so of the middle of Bernards Heath. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Bernards Heath sits within the area of Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Kitchens in Bernards Heath get their food hygiene inspections from St Albans City council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Our report lists what was cleaned and when, which is useful to have ready.
A hall kitchen that only cooks for events, whether near Church of St Saviour or elsewhere in Bernards Heath, still needs its extract cleaned, just less often. If you run catering at a healthcare site, such as a hospital like St Albans City Hospital about within half a mile west, the extract may need cleaning more often than a part-time kitchen.
Bernards Heath is about 1 mile north of St Albans, in Hertfordshire. We carry out ductwork cleaning for commercial premises of every kind in Bernards Heath and the rest of Hertfordshire. Our Hertfordshire coverage runs to 381 places, Bernards Heath among them. You can also see our page for London, roughly 21 miles from Bernards Heath.
Postcode districts we cover here for ductwork cleaning: AL3, AL1 and AL4. We cover sites on Etna Road, Green Lane and Manor Road and the roads around them. With the A1081 close by, Bernards Heath is easy for our technicians to reach for ductwork cleaning. We also cover St Albans (1 mile south), Marshalswick (1 mile east), St Stephens (1 mile south-west), Sopwell (2 miles south) and Childwick Green (2 miles north). Within a short drive, we also cover Watford (7 miles south-west), Hemel Hempstead (5 miles west), Stevenage (12 miles north-east), Welwyn Garden City (7 miles north-east), Harpenden (4 miles north) and Hitchin (13 miles north).
What’s near Bernards Heath
In Bernards Heath, that means kitchens and buildings near St Albans Girls' School, Clarence Park and Jolly Sailor pub. For rail, the closest station is St Albans station, roughly 0.8 miles south. Other landmarks nearby include The Maltings (0.7 miles south) and St Albans Musical Museum (0.5 miles south-east). Green spaces nearby include Verulamium Lake and The Wick Local Nature Reserve.
Staff cleaning versus specialist work
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
Why it’s worth doing now in Bernards Heath
Under BESA guidance, the mean grease level should stay at or below 200 microns between cleans. Anywhere that reaches 500 microns or more needs immediate spot cleaning. Putting off the clean only pushes readings higher. Light use slows the build-up but doesn’t stop it.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before any work starts.
Why us?
- Fully insured
- One number for every site across the South East and London
- CHAS, SafeContractor and ISO 9001
- Fixed quotes from a survey or photos
What affects the quote in Bernards Heath
The diagnosis comes before the price. The main factors are:
- Travel, parking and unloading
- Site rules, permits and inductions
- Working hours and out-of-hours timing
- The number of sites or systems
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account, and the price is fixed before any work starts.
What to send for a quote
Before you ask for a quote, gather:
- Your last certificate, test record or report
- Your opening hours and when the area is out of use
- Wide photos of the system and the area around it
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work so you know the cost before work begins.
Do you need ductwork cleaning in Bernards Heath?
Slow air leaves the most grease behind. Flat runs, bends, reducers and the base of risers are the usual hotspots, and those are the points we pay most attention to.
Most sites get in touch when they notice one of these:
- Smells of old cooking grease from the ductwork
- Years of grease along the duct floor
- Gaps where access panels were never fitted
- A grease test showing the duct is overdue
If you look after a school kitchen, at a school such as Garden Fields Junior Mixed and Infant School or anywhere near Bernards Heath, the holidays are the usual time for a TR19® clean.
Before booking anyone
- What hours they’ll be on site
- Whether the quote is based on a survey or pictures
- Whether the quote shows VAT
- How areas they can’t reach will be recorded
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. After that, the work takes anything from a few hours to several visits, depending on the length of duct. Evenings, weekends or a closed day all work for a site in a place like Bernards Heath.
- First the duct route is traced and every access point noted.
- Set points along the runs are tested for grease.
- We open the panels and scrape out the heaviest grease.
- Horizontal runs and risers are then degreased by the method that suits the deposit.
- Post-clean readings and pictures go into the report, with any unreachable section listed.
Getting ready for the visit
- Clear loose items from the work area
- Let us know about parking and loading
- Mention any locked doors, roof access or ceiling voids
How to get a quote
Getting a quote does not take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.