Hertfordshire · Ductwork cleaning
Ductwork cleaning in Frogmore, Hertfordshire
Ductwork cleaning for Frogmore, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- High readings at a recent grease test
- A duct clean needed for an insurer
- Duct runs with no cleaning record
What affects the quote in Frogmore
Before we fix a price, we need to know a few things. We look at:
- What state the system is in
- Working hours and out-of-hours timing
- One-off work versus a regular cycle
- Where the site is and how we reach it
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all make a difference.
What we need to know
When you contact us, these details help:
- Any symptoms, from odd noises to smells or leaks
- The times we could work without disrupting the site
- Photos showing the whole system and its surroundings
- Your last certificate, test record or report
Want a quote for ductwork cleaning? Please give us a ring on 0345 646 2711 or send us an 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.
Ductwork cleaning in Frogmore, done properly
If the ducts in Frogmore haven’t been cleaned for a while, or nobody is sure when they were? A few details about the system are a good start when you phone us on 0345 646 2711 or use the quote form, and a fixed price will follow, normally within one working day. Typical jobs include duct runs with no cleaning record and a rancid smell from the extract duct, on attenuators, bends and junctions and multi-storey ducts.
In a village or hamlet like Frogmore, the kitchens that need extract cleaning are usually a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease, whatever the size of the place.
Every visit ends with a written report and photos, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.

- Place
- Frogmore (AL2)
- Region
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed price before work begins
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
When to call us in Frogmore
Grease filters that don’t seal let fat straight through. More grease reaches the ductwork than it should and it fills faster.
It’s time to book a visit if you see:
- Thick deposits at the bottom of a vertical duct
- Stale grease odours from the duct
- Fat dripping from the ductwork
- Hardened, baked-on grease in long horizontal runs
For kitchens close to How Wood station, where the day often starts early and ends late, the extract can be cleaned overnight.
Questions to ask before you book
- If they look at the system before pricing
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What’s included in the scope, part by part
- Whether the quote shows VAT
Kitchen extracts in Frogmore
There are about 15 restaurants, cafés and canteens and about 14 takeaways and sandwich shops in Frogmore and the streets around it, up to about 1.5 miles out, according to the Food Standards Agency’s register. The duct above a busy canopy coats itself in grease long before anyone sees it. The fire and rescue service for Frogmore is Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Environmental health officers from St Albans City council inspect food businesses in Frogmore. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A dated certificate in the maintenance file answers the question before it’s asked.
For schools such as Park Street Church of England Voluntary Aided Primary School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed. If you run a church or community hall kitchen, near Church of the Holy Trinity or elsewhere in Frogmore, its extract still collects grease from every lunch and event.
Frogmore is about 2 miles south of St Albans, in Hertfordshire. We carry out ductwork cleaning for businesses, landlords and public buildings in Frogmore and the rest of Hertfordshire. Our Hertfordshire coverage runs to 381 places, and Frogmore is one of them. There’s also a page for London, roughly 18 miles from Frogmore.
All of AL2 is within our area for ductwork cleaning, from the main roads to the quietest streets. We cover sites on Centaurus Square, Frogmore and Avian Avenue and the roads around them. If your site is just outside Frogmore, we cover Park Street (1 mile north-west), How Wood (1 mile west), Colney Street (1 mile south-east), Chiswell Green (1 mile north-west) and Sopwell (1 mile north). Larger places within reach include Watford (5 miles south-west), Hemel Hempstead (6 miles north-west), Stevenage (15 miles north-east), Welwyn Garden City (8 miles north-east), Harpenden (7 miles north) and Hoddesdon (14 miles east).
Local landmarks in Frogmore
Around Frogmore, our work takes us to kitchens and buildings near The Old Red Lion pub and Marlborough Science Academy and the streets around them. Frogmore has its own railway station: How Wood station. Nearby you will also find Hypocaust Museum (2.3 miles north-west) and Hilfield Castle (4.5 miles south). Not far away are Verulamium Lake and Broad Colney Lakes.
In-house cleaning or a specialist?
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. That is our job.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
How it works
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before work begins, and floors and nearby surfaces are sheeted. The work itself takes a few hours for a short run, longer for long runs and tall risers. A few photos of the system help us make the most of a visit to a place like Frogmore.
- We trace the duct and find every way in.
- We take grease readings along the route.
- Out of hours, the area is protected and the access panels opened.
- Thick grease is scraped out, then the runs and risers are degreased.
- We close up, re-test, photograph and record anything out of reach.
Getting ready for the visit
- Tell us where we can park and unload
- Name a contact who can let us in at the agreed time
- Find the previous report, if there is one
Getting a quote
Some systems can be priced from pictures; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.
Related advice
Looking after it afterwards
No system stays clean for ever, but care slows the build-up. Our tips:
- Make sure filters are seated properly
- Report any grease dripping from duct joints
- Diarise the next duct clean
- Don’t switch the extract off early
When the duct is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. It records the date, the location and the technician.
Watch for warning signs between cleans: drips from the ductwork, stale smells or a noisy fan. Testing will show whether any section has reached 500 microns.
Multi-site and managed buildings
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
Places near Frogmore
What else we do in Frogmore
Questions from Frogmore
Which fire and rescue service is responsible for Frogmore?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Frogmore. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Which council inspects kitchens in Frogmore?
The local authority for Frogmore is St Albans City council, and its environmental health team does the inspecting. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
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 a 24/7 line?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we will talk you through the next steps.
When is the ductwork cleaned?
When the kitchen is closed. Larger systems may be cleaned over several nights, with the kitchen ready to cook each morning.
How long does ductwork cleaning take?
Short runs are quick, but long or complex ducts may take several visits. We plan the work around your kitchen.
How do you keep the site clean during the work?
Protection goes down first: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.
Is a quote from photos possible?
Often, yes. With good photos, the site type and your last report, we can price many jobs. Larger or hidden systems need a survey on site first.
What the work involves, part by part
Attenuators and discharge
At the end of the duct is the discharge. It can gather grease and mark the wall or roof around it, so it’s cleaned as far as safe access allows.
Horizontal duct runs
Grease settles on the floor of a flat duct run. We scrape out the heavy layer first, then the walls and roof are cleaned too.