Hertfordshire · Canopy and hood cleaning
Ayot St Lawrence canopy cleaning
Canopy cleaning for commercial sites in Ayot St Lawrence and across Hertfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Drips from the canopy onto the range
- Filters that never seem to stay clean
- Wet, greasy drips from the hood
About our canopy cleaning in Ayot St Lawrence
Duct Doctor has cleaned canopies and hoods since 2009. As a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, we treat the canopy as one part of a whole system, and we’re fully insured, with CHAS, SafeContractor and ISO 9001. The work covers baffle filters, grease gutters and wall canopies, and common reasons people get in touch are drips from the canopy onto the range and a sticky, discoloured canopy.
For a kitchen in or near Ayot St Lawrence, the visit is planned around opening hours and the journey, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
Think of the report as the system’s health record: a dated account with pictures of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.

- Location
- Ayot St Lawrence (AL6)
- Region
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Price
- Fixed quote, normally within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
The process
Each visit runs to the same pattern: sheeting and protection first, isolate whatever needs isolating, do the work, clear away and hand over the paperwork. The visit itself takes an hour or two for one small canopy, longer where there are several. Seeing the system in pictures first means the trip to Ayot St Lawrence can be planned properly.
- The canopy is checked from photos or on a visit.
- Out of hours, the range is switched off, cooled and covered.
- With the filters removed, the plenum and filter channels are cleaned.
- The canopy shell, seams, troughs and gutters are degreased inside and out.
- We put the filters back, tidy up and photograph the finished canopy.
Getting ready for the visit
- Dig out any earlier paperwork for the system
- Tell us about site rules, permits or sign-in
- Name a contact who can let us in at the agreed time
Get a fixed quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.
Related advice
What canopy cleaning can’t fix
We’d rather tell you now than book work that won’t help, so here are the limits:
- Weak extraction caused by a failing fan motor
- Electrical faults in the canopy
- A canopy too small for the cooking under it (that’s a design question)
If you are not sure, just give us a ring on 0345 646 2711 or drop us a line and we’ll give you a straight answer.
Parts of the system we cover
- Wall canopies
- Plenum chambers
- Grease gutters
- Baffle filters
- Island canopies
- Canopy light fittings
Canopy cleaning in Ayot St Lawrence: the local picture
Look up Ayot St Lawrence on the FSA’s food hygiene register and you’ll find about 4 restaurants, cafés and works canteens within roughly a mile and a half of the centre of Ayot St Lawrence. Any of those kitchens with a canopy has a hood that needs cleaning inside and out. Ayot St Lawrence 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 Ayot St Lawrence get their food hygiene inspections from St Albans City council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A dated certificate in the maintenance file answers the question before it’s asked.
School kitchens, at schools like Monk's Walk School for example, are normally cleaned in the holidays so no lunches are lost. If you run catering at a healthcare site, such as a hospital like Queen Elizabeth II Hospital about 4.9 miles south-east, the extract may need cleaning more often than a part-time kitchen.
Ayot St Lawrence is about 4 miles east of Harpenden, in Hertfordshire. Wherever you are in the AL6 postcode area, we can take on canopy cleaning. Ayot St Lawrence is one of 381 towns, villages and districts in Hertfordshire we cover for commercial clients. London is in our area too, about 24 miles from Ayot St Lawrence.
Work in AL6 is surveyed, quoted and booked the same way as anywhere else. Local streets include Hill Farm Lane and Bibbs Hall Lane, all of which we cover for canopy cleaning. Close by, we work in Codicote Bottom (1 mile north-east), Ayot St Peter (1 mile south-east), Gustard Wood (1 mile south-west), Codicote (1 mile north-east) and Kimpton (2 miles north-west). Larger places within reach include Watford (13 miles south-west), Hemel Hempstead (10 miles south-west), Stevenage (6 miles north-east), St Albans (6 miles south-west), Welwyn Garden City (4 miles south-east) and Harpenden (4 miles west).
Landmarks near Ayot St Lawrence
Locally, jobs take us to businesses close to The Brocket Arms and Danesbury Park and the streets around them. The closest station to Ayot St Lawrence is Welwyn North station, about 3.1 miles east. Other landmarks nearby include Queen Elizabeth II Hospital (4.9 miles south-east) and Howard Centre (3.5 miles south-east). Green spaces nearby include Stocking Springs Wood.
Towns and villages near Ayot St Lawrence
Also in Ayot St Lawrence
Multi-site and managed buildings
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Do you need canopy cleaning in Ayot St Lawrence?
Moisture in the air mixes with the grease on the canopy. Water vapour condenses on the cooler canopy surfaces and drips and runs with the grease. Drips onto the cooking line are a common result.
If you notice any of these, it’s worth a diagnosis:
- Heavy deposits behind the grease filters
- Wet, greasy drips from the hood
- Canopy gutters full of old fat
- A greasy hood noticed by an inspector
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Shaw's Corner is about 0.2 miles south-west), access may need planning.
Comparing quotes
- Whether the work can be done while the site is closed
- When the next visit should be, and why
- Proof of accreditation you can verify
- Exactly which parts of the system are covered
Why deal with it now?
A canopy clean in Ayot St Lawrence now stops the grease spreading further. It takes a few hours for most canopies, done while the kitchen is closed. Put off, the grease simply moves further into the system. Planning a trip to Ayot St Lawrence ahead is easier for everyone than a rushed one.
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you are unsure, ring 0345 646 2711 or drop us a line for straight advice and a fixed quote.
Why Ayot St Lawrence businesses choose us
- Work around your opening hours, with 24/7 emergency cover
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Full insurance on every job
- Fixed quotes, typically within one working day
Read how cleaning jobs are priced and how to check a contractor.
Different parts, different methods
Grease troughs and gutters
Where a trough drains into a grease cup, we empty and clean that as well, and we’ll show staff where it is.
Pub and hotel kitchens
Staff in pub and hotel kitchens work under the canopy all day, so drips and smells soon become a daily nuisance. A thorough clean puts that right.
Ayot St Lawrence: your questions answered
Who carries out food hygiene inspections in Ayot St Lawrence?
That’s St Albans City council, whose environmental health officers carry out food hygiene inspections in Ayot St Lawrence. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
Is Ayot St Lawrence within the area you cover?
Yes, Ayot St Lawrence is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Are you insured?
Yes. We carry full insurance and have been trading since 2009.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
What accreditations do you have?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
How do you keep the site clean during the work?
With sheeting and covers, before anything else happens. We keep the work contained and leave the area clean.
Who is responsible for fire safety on the premises?
In the words of the Fire Safety Order 2005, it’s the responsible person. It’s normally the employer, or whoever controls the building, and in shared buildings more than one person can have duties. Your lease and fire risk assessment should make it clear.
Which canopies and hoods do you clean?
We clean canopies in commercial kitchens of every kind. Whatever is cooked under it, the canopy is cleaned the same thorough way, with the equipment off and cool.
How we price canopy cleaning
A fixed price needs a few facts first. We look at:
- The condition of the system
- Travel, parking and unloading
- One-off work versus a regular cycle
- Site rules, permits and inductions
We don’t list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.
Helping us quote
To speed up the quote, please include:
- Problems your staff have spotted
- Wide pictures of the system and the area around it
- The paperwork from the last visit, if you have it
- Any access panels or hatches you can see
Want a quote for canopy cleaning? Please call us on 0345 646 2711, or send details by email with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.