Greater London · Extract fan repair and replacement
Extract fan repair and replacement in Coldblow, Greater London
Extract fan repair for businesses, landlords and public buildings in Coldblow. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Poor airflow at the canopy
- A worn or slipping fan belt
- An extract fan that rattles or knocks
Leave it or put it right?
A struggling motor runs hotter and works harder. That shortens its life and a burnt-out motor is a bigger job than a worn belt. Early attention keeps the cost and disruption down. London sites work long hours, and the longer a job is left, the bigger it gets.
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we will explain what it covers.
Why us?
- Photo reports with every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
- We’re fully insured
- Fixed quotes from a survey or photos
Take a look at how cleaning jobs are priced or our accreditations.
Extract fan repair for kitchens and businesses in Coldblow
Kitchens in Coldblow call us about extract fans and motors that are noisy, slow or dead, we diagnose the fault and send you a fixed quote to repair or replace it. When the fan gives up mid-service, our 24/7 emergency line is there. If you have an extract fan that has stopped working and poor airflow at the canopy, we can help.
In London, a kitchen without working extraction cannot keep cooking safely, and a closed kitchen loses a night’s trade. In Coldblow, as across London, fans often sit on a roof or deep in a plant space, so access is the first thing we ask about.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Place
- Coldblow (DA5)
- Region
- Greater London
- Records
- Photo report after every visit
- Quote
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Do you need extract fan repair in Coldblow?
Some grease always slips past the filters and reaches the fan. Deposits gather on the blades, never quite evenly, and an unbalanced impeller shakes and starts to vibrate and rattle.
What we’re most often called out for:
- A knocking noise from the extract fan
- A fan that whines, hums or grinds
- A belt-driven fan that squeals
- A fan running too slowly to clear the kitchen
For school kitchens, at schools like Maypole Primary School for example, a planned fan repair in the holidays avoids losing lunches in term time.
What to look for in a quote
- Whether inaccessible sections are listed on the report
- What’s included in the scope, part by part
- If the quote is a fixed price or an estimate
- Whether the work can be done while the site is closed
In-house cleaning or a specialist?
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Between visits
Once we have finished, these simple steps help:
- Save our number for the 24/7 emergency line
- Keep the grease filters clean and fitted
- Never run the extract with filters missing
- Keep the area around the fan controls clear
Once the fan is running smoothly, keep the filters clean. The less grease that reaches the fan, the longer its parts last and the quieter it runs.
When filters block, the fan works harder. Changing or cleaning them on time takes load off the motor and protects the motor.
FAQs for Coldblow
Do you cover Coldblow for emergency fan repairs?
We run a 24/7 emergency line for failed extract fans, and Coldblow is part of our area. Phone 0345 646 2711 and we’ll talk through the fault and access. A photo of the fan’s rating plate helps.
Can the work in Coldblow be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. That way a site in Coldblow doesn’t have to lose a day’s trading. When you give us a ring on 0345 646 2711 or email us, mention when the site is quiet.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Who is the responsible person?
It depends on the building. The Fire Safety Order 2005 puts the duty on the responsible person, which may be the employer, owner, landlord, facilities manager or managing agent.
What paperwork should we keep on file?
Everything that shows the system is looked after: our reports and photos, any certificates and your in-house logs. One maintenance log per site keeps it simple.
Can you supply and fit a replacement fan?
Yes. We fit replacement fans as well as repairing old ones, and we’ll explain the options.
Do you offer maintenance contracts?
Yes. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
Which kinds of sites do you work on?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
When a fan fails in Coldblow
Food Standards Agency data counts about 59 restaurants, cafés and canteens and about 31 takeaways and sandwich shops in and around Coldblow, 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. It’s Bexley council that sends environmental health officers to food businesses in Coldblow. Under food hygiene rules, a kitchen needs suitable and sufficient ventilation. So a failed fan is worth fixing before the next service, not the next month. London extract fans are often at the end of long duct runs, on roofs or in basements.
If you cook near Bexley station, long trading hours wear fan belts and bearings, so noise and vibration are worth reporting early. A fan that rarely runs, like one in a hall kitchen near Church of St Mary the Virgin or elsewhere in Coldblow, can seize between uses.
Coldblow is about 3 miles east of Sidcup, in Greater London. Across the DA5 area, we can take on extract fan repair. Our Greater London coverage runs to 764 places, and Coldblow is one of them. For sites nearby, see our London page, about 12 miles away.
Here we cover the DA5 postcode area for extract fan repair. Streets in the area include St Mary's Road, Dartford Road and Wansunt Road, all of which we cover for extract fan repair. Close by, we work in Joyden's Wood (1 mile south-east), Bowmans (1 mile east), North Cray (1 mile south-west), Crayford (1 mile north-east) and Wilmington (1 mile south-east). We also work in nearby towns such as London (12 miles west), City of Westminster (15 miles west), Marylebone (14 miles north-west), St Pancras (14 miles north-west), Shoreditch (12 miles north-west) and Walthamstow (13 miles north-west).
Around Coldblow
In Coldblow, that means kitchens and buildings near The Old Wick pub, St Columba's Catholic Boys' School and Braeburn Park, among other places. The closest station to Coldblow is Bexley station, roughly 0.6 miles west of the centre. Other landmarks nearby include Stone Castle (5 miles east) and Bexley Museum (0.7 miles north). For a walk, there’s Wansunt Pit and Summer Hill.
Places near Coldblow
Also in Coldblow
What a clean will not put right
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Faults on the gas side of an interlock system, which need a Gas Safe registered engineer
- Grease build-up in the rest of the extract system
- Faults in the building’s electrical supply, which need an electrician
If you’re not sure, just ring 0345 646 2711, or send details by email and we will give you a straight answer.
What we work on in Coldblow
- Fan motors
- Bearings
- Belts and pulleys
- Fan housings
- Kitchen extract fans
- Roof and wall fans
How we price extract fan repair
Your quote is based on your site. We consider:
- One-off work versus a regular cycle
- The condition we find in the survey
- Site requirements such as sign-in and permits
- How easy every part is to reach
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before we start.
Asking for a quote
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Problems your staff have spotted
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Where the site is and what kind of site it is
- Wide pictures of the system and the area around it
Every quote begins with a look at the system, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before any work starts.
What happens on the day
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. The visit takes a few hours for most repairs, longer for a full fan replacement. In Coldblow, as across London, we normally work overnight or at weekends and hand the site back ready to open.
- We agree a time to attend, out of hours if needed.
- The extract is switched off and the fan opened up.
- We inspect every moving part and the fixings.
- You hear whether repair or replacement makes sense, with a fixed quote.
- The fan is repaired or replaced, then checked running.
Preparing for the visit
- Clear loose items from the work area
- Let us know when the site is closed or quiet
- Name a contact who can let us in at the agreed time
Ask for a quote
For a fixed quote, call 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We usually come back within one working day.