Hertfordshire · Extract fan repair and replacement
Extractor fan repair in Colney Street
We cover Colney Street for extract fan repair and replacement. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- An old fan that needs replacing
- A motor that trips out or overheats
- A knocking noise from the extract fan
Colney Street questions
Do you work overnight in Colney Street?
Yes, out-of-hours work is a big part of what we do. The work in Colney Street can fit around your hours. When you phone us on 0345 646 2711 or use the quote form, mention when the site is quiet.
Who inspects food businesses in Colney Street?
That’s St Albans City council, whose environmental health officers carry out food hygiene inspections in Colney Street. Inspections are risk-based, so a visit can come at any time, including the week a fan stops.
Is it worth cleaning the extract while you’re fixing the fan?
A repair deals with the fan, not the grease in the rest of the system. If there’s grease on the fan, a full TR19® clean is worth booking, and we can arrange both.
What paperwork should we keep on file?
The reports and certificates from each visit, plus your own logs. They’re what an insurer, fire officer or EHO may ask for, so keep them where they can be found quickly.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.
Where does the waste go?
We contain it and take it with us. Grease, debris and waste water are collected as the work goes on, so it does not spread.
Are you accredited?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’re fully insured and have been trading since 2009.
Will I get paperwork for my records?
Yes. Each visit ends with a written report and photos, covering the work, any areas we couldn’t access and the recommended next date. Where the work is a TR19® Grease clean, there’s also a certificate issued through the BESCA Vent Hygiene Elite portal.
How we handle extract fan repair in Colney Street
Before anything is ordered, we diagnose. The motor, drive, impeller, bearings and mounts are all checked and the speed control too. Then you’re given a fixed quote for the repair or the replacement. If you are dealing with an old fan that needs replacing and a whining or grinding extract motor, we can put it right.
For a fan repair in or near Colney Street, the more you tell us about the fan, the better the first visit: photos of the fan, its rating plate and how to reach it all help.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- Colney Street (AL2, WD7)
- Region
- Hertfordshire
- Records
- Written report with pictures
- Price
- A fixed price before we start
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026

Extract fan repair in Colney Street: local notes
There are about 17 restaurants, cafés and works canteens and about 7 sandwich bars and takeaways within about 1.5 miles of central Colney Street, according to the Food Standards Agency’s register. Wherever they cook under a canopy, a failed extract fan stops the kitchen. In Colney Street, food businesses are inspected by environmental health officers from St Albans City council. Ventilation is part of food hygiene law, which expects it to be suitable and sufficient. That is one more reason not to keep cooking with a broken fan. Colney Street, about 18 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
Occasional-use kitchens, such as a hall kitchen near Church of the Holy Trinity or elsewhere in Colney Street, are where a stiff or seized fan can turn up.
Colney Street is about 3 miles south of St Albans, in Hertfordshire. Whether your site is in the middle of Colney Street or further out, we cover extract fan repair for every kind of premises, from small sites to large estates. 381 places in Hertfordshire are on our list, large and small. London is in our area too, around 18 miles away.
Extract fan repair in AL2 and WD7 is surveyed, quoted and booked the same way as anywhere else. You’ll find streets such as Old Parkbury Lane, Ventura Park and Radlett Road, all of which we cover for extract fan repair. If your site is just outside Colney Street, we cover Frogmore (1 mile north-west), Park Street (1 mile north-west), How Wood (1 mile north-west), Bricket Wood (2 miles west) and Chiswell Green (2 miles north-west). We also work in nearby towns such as Watford (4 miles south-west), Hemel Hempstead (6 miles north-west), Stevenage (15 miles north-east), St Albans (3 miles north), Welwyn Garden City (8 miles north-east) and Harpenden (8 miles north).
Landmarks near Colney Street
Locally, jobs take us to businesses close to The George and Dragon Public House and Samuel Ryder Academy and the streets around them. For rail, the closest station is How Wood station, roughly 1 mile north-west of the centre. Well-known places in the area include Kingsley Green (1 mile east) and The Maltings (2.9 miles north). The countryside around Colney Street includes Verulamium Lake and Broad Colney Lakes.
Multi-site and managed buildings
Facilities teams in offices, schools and healthcare sites book us too in Colney Street and across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
Whether it’s one building or many, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
What affects the quote in Colney Street
Some jobs are bigger than they look, and some smaller. The main factors:
- Site requirements such as sign-in and permits
- How many systems or sites are involved
- A single visit or a regular plan
- Working hours and out-of-hours timing
What you pay reflects the actual work. That is why every job is surveyed first, and why the quote is fixed before work begins.
Asking for a quote
Before you ask for a quote, gather:
- The paperwork from the last visit, if you have it
- The site address and the type of premises
- Any symptoms, from odd noises to smells or leaks
- Your opening hours and when the area is out of use
There’s no standard price list, because every site is different. We look at your system first, from pictures or on a visit, and then give you a fixed quote. To get going, call us on 0345 646 2711 or drop us a line.
Do you need extract fan repair in Colney Street?
Kitchen extract fans in Colney Street face the same conditions as anywhere else: heat, grease, steam and long running hours. Moisture can rust housings and fixings and eventually any fan simply wears out.
Any of these means the system needs a check-up:
- A squealing belt on start-up
- An old fan that needs replacing
- A fan that keeps cutting out
- Poor airflow at the canopy
School kitchens cannot easily serve lunch without extraction, so if you look after one at a school like Park Street Church of England Voluntary Aided Primary School, fix a failing fan before term starts.
What your quote should include
- When they can work, and whether that is outside your opening hours
- Whether they recommend a next date
- What records you will receive afterwards
- Exactly which parts of the system are covered
Aftercare tips
Good habits slow the build-up between visits. Our tips:
- Keep the emergency number where staff can see it
- Don’t turn the fan down to hide a noise
- Note when the fan trips or cuts out
- Make sure the fan is cleaned with the rest of the system
Your kitchen can get back to normal as soon as the fan is running. We leave the area tidy and explain anything you need to know.
When filters block, the fan works harder. Changing or cleaning them on time takes load off the motor and protects the motor.
Staff cleaning versus specialist work
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
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 we start, and floors and nearby surfaces are sheeted. The work itself takes an hour or two to diagnose, then longer if parts or a new fan are needed. Somewhere like Colney Street, lanes, gates and parking are worth mentioning in advance.
- First, you tell us the symptoms: noise, shaking, weak extraction or no power.
- Power to the fan is isolated before we open the housing.
- We check the motor, bearings, drive, impeller and mountings.
- We explain the fault and give you a fixed price for the fix.
- Once the work is done, we run the fan and check it’s steady and quiet.
Before we arrive
- Let us know how we reach the system, including roofs, risers and plant rooms
- Find the previous report, if there is one
- Mention any parking or loading restrictions
How to get a quote
Want a quote for extract fan repair? Please give us a ring on 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 anything is booked.
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What a clean will not put right
To be straight with you, there are a few things this work will not fix:
- Gas interlock faults that a Gas Safe registered engineer must deal with
- An extract system that was undersized from the start
- Problems with the electrical supply to the fan (an electrician’s job)
If in doubt, phone us on 0345 646 2711 or email us and we will say what we think before booking.
Parts of the system we cover
- Kitchen extract fans
- Fan motors
- Roof and wall fans
- Fan housings
- Belts and pulleys
- Bearings