Greater London · Extract fan repair and replacement
Extractor fan repair in Pratt's Bottom
Need extract fan repair in Pratt's Bottom? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- An extract fan that has stopped working
- A worn or slipping fan belt
- A humming noise from the fan motor
What we do, step by step
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and pictures. The middle part takes longest, and that takes anything from an hour or two to a full visit, depending on the fault. Managed blocks in London often need contractors booked in ahead, and we are happy to deal with the agent directly for a site in Pratt's Bottom.
- We ask what the fan is doing, from noise and vibration to a full stop.
- With the fan safely isolated, we open it up for a proper look.
- We check the motor, bearings, drive, impeller and mountings.
- You get our diagnosis and a fixed quote to repair or replace.
- Once the work is done, we run the fan and check it’s steady and quiet.
Getting ready for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Clear the space around the work
- Mention any sign-in, permit or induction we need
Get a fixed quote
Want a quote for extract fan repair? Please ring 0345 646 2711, or send details by email and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Advice
Extract fan repair in Pratt's Bottom
We treat a failing fan much like a patient: listen to it, diagnose the fault, then treat it. The aim is steady, quiet extraction and a plain account of what we found. We are often asked to deal with a fan worn beyond sensible repair and a motor that trips out or overheats, across bearings, roof and wall fans and fan housings.
Replacing a fan in a London building often means working at height or in a tight plant space, and in Pratt's Bottom, parking and lifting are part of that. Work can be done after service, so the kitchen loses as little time as possible.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Location
- Pratt's Bottom (BR6, TN14)
- Wider area
- Greater London
- Reporting
- Written report with pictures
- Quotes
- A fixed price before we start
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Also near Pratt's Bottom
What else we do in Pratt's Bottom
Aftercare tips
Once we have finished, these simple steps help:
- Keep the area around the fan controls clear
- Keep the grease filters clean and fitted
- Keep a record of any trips or stoppages
- Save our number for the 24/7 emergency line
We run the fan and check it’s steady before we go. We explain the fault and the fix, and anything else we noticed is pointed out.
The fan is part of every full TR19 clean. Keeping grease off the impeller is one of the simplest ways to protect it and that means less wear.
Common problems we fix in Pratt's Bottom
Some grease always slips past the filters and reaches the fan. Deposits gather on the blades, never quite evenly, so the fan runs out of balance and starts to vibrate and rattle.
Any of these means the system needs a check-up:
- Vibration spreading from the fan into the ducts
- A knocking noise from the extract fan
- A motor that trips out or overheats
- A humming noise from the fan motor
If you cook near Knockholt station, long trading hours wear fan belts and bearings, so noise and vibration are worth reporting early.
What to look for in a quote
- Whether the work can be done while the site is closed
- What insurance they carry
- When the next visit should be, and why
- Whether the quote shows VAT
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that is where we come in.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
When a fan fails in Pratt's Bottom
Look up Pratt's Bottom on the FSA’s food hygiene register and you will find about 8 cafés, restaurants and staff canteens and about 8 sandwich bars and takeaways in and around Pratt's Bottom, up to about a mile and a half out. Those that cook under a canopy rely on a fan that runs every hour they’re open. Food hygiene inspections in Pratt's Bottom are the job of Bromley council’s environmental health team. Ventilation is part of food hygiene law, which expects it to be suitable and sufficient. Getting the fan running again is the priority. In London, a fan on a roof or in a basement can take planning to reach, with parking and loading to arrange.
If you manage a school such as Pratts Bottom Primary School and the kitchen fan is getting louder, the next break is the time to deal with it. If you look after a church or hall kitchen near All Souls' Church, or anywhere in Pratt's Bottom, test the extract fan before a big event rather than on the day.
Pratt's Bottom is about 3 miles south of Orpington, in Greater London. For extract fan repair in and around Pratt's Bottom, please give us a ring on 0345 646 2711 or email us for a fixed quote. Our area covers London and the South East, Pratt's Bottom included. Across Greater London, we cover 764 places, Pratt's Bottom among them. You can also see our page for London, roughly 14 miles from Pratt's Bottom.
We cover every part of the BR6 and TN14 postcode area for extract fan repair and the roads nearby. Local streets include Orchard Road, Runciman Close and Downs View Close, all of which we cover for extract fan repair. We also cover the places around Pratt's Bottom: Halstead (1 mile south-east), Chelsfield (1 mile north-east), Bopeep (1 mile north-east), Badgers Mount (1 mile east) and Maypole (1 mile north-east). We also work in nearby towns such as London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (13 miles north-west), Orpington (3 miles north) and Wimbledon (15 miles west).
Near you in Pratt's Bottom
We work in commercial kitchens and buildings around Hewitt's Chalk Bank and Green Street Green Primary School, among other places. The nearest railway station is Knockholt station, roughly 0.8 miles east. Nearby you will also find Crofton Roman Villa (2.4 miles north-west) and Lullingstone Castle (3.8 miles east). Green spaces nearby include Betsom's Hill and Downe Bank Nature Reserve.
Multi-site and managed buildings
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Whether it’s one building or many, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with photos.
What happens if it’s left?
A fan that’s running slowly is not clearing the kitchen properly. Staff work in hotter, steamier air and grease has more chance to settle on surfaces and in the duct. In Pratt's Bottom, a planned overnight visit is much easier than closing unexpectedly.
The price reflects the work, not guesswork. That’s why every job is surveyed first, and the price is agreed before any work starts.
Why choose Duct Doctor in Pratt's Bottom
- Full insurance on every job
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- In business since 2009
- Survey first, then a fixed quote
Part by part
Motors and bearings
An overheating motor is a warning sign. It may be straining against blocked filters or ducts or the motor may be near the end of its life.
Fan controls
Speed controllers and isolators sit between the supply and the fan. A control fault can leave the fan dead or stuck at one speed.
Questions from Pratt's Bottom
Is parking a problem for work in Pratt's Bottom?
London parking can be tight, so details of loading bays and permits help. Much of our London work is done overnight, which helps.
Who inspects food businesses in Pratt's Bottom?
In Pratt's Bottom, it’s Bromley council that carries out food hygiene inspections. Keeping the fan serviced is easier than explaining a broken one on inspection day.
Which kinds of sites do you work on?
Commercial premises of every kind: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. We fit the work around how the site operates.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We are fully insured and have been trading since 2009.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before we start, and anything we remove is contained. At the end, the area is cleaned down.
Will I get paperwork for my records?
Yes. It’s your proof that the work was done: a dated report with photos, listing the work and any areas we couldn’t reach.
Are you fully insured?
Yes, we’re fully insured. We also hold CHAS and SafeContractor, for sites that check contractor safety.
Will you tell us when the next visit is due?
Yes. The interval depends on how much the system is used and what we find, and we explain the reasoning on the report.