Hampshire · Extract fan repair and replacement
Extract fan repair and replacement in Four Marks, Hampshire
Extract fan repair in Four Marks, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- A worn or slipping fan belt
- An extract that vibrates through the ductwork
- A fan running too slowly to clear the kitchen
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.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and send you a fixed quote.
Extract fan repair in Four Marks, done properly
Grease and fans do not mix. Deposits on the impeller throw it out of balance and the vibration wears out bearings and fixings. That’s why we check the grease whenever we work on a fan and can arrange a TR19® clean of the whole system at the same time. The work covers bearings, fan motors and belts and pulleys, and people most often call us about a belt-driven fan that squeals and weak extraction and a smoky kitchen.
For a fan repair near Four Marks, we plan the journey and bring what the job is likely to need, so photos of the fan and its rating plate help.
Think of the report as the system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Where
- Four Marks (GU34)
- Wider area
- Hampshire
- Reporting
- Photo report after each visit
- Quotes
- A fixed price before work begins
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026

Keeping the system healthy
Think of this as the after-treatment advice, short and simple:
- Keep the area around the fan controls clear
- Don’t wait for a noisy fan to stop
- Clean or change filters on schedule
- Save our number for the 24/7 emergency line
Clean filters help a repaired fan stay that way. The less grease that reaches the fan, the longer its parts last and fewer faults.
Small faults, like a worn belt, are quick to fix. Left for months, they can damage the motor or bearings, so it’s worth acting early.
Why act early in Four Marks
In kitchens with an interlocked gas supply, no extract can mean no cooking. Even without an interlock, cooking without extraction isn’t sensible and fixing the fan early avoids a forced shutdown. Booking ahead lets us plan the trip to Four Marks at a time that suits you.
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before we start.
Why choose Duct Doctor in Four Marks
- CHAS and SafeContractor accredited, with ISO 9001
- One number for every site across the South East and London
- Trading since 2009
- Full insurance on every job
Read what affects the cost or our accreditations.
Also near Four Marks
Also in Four Marks
How the visit works
The first job on site is protection: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes a few hours for most repairs, longer for a full fan replacement, and we clear up before we go. In a place like Four Marks, we fit the visit around your hours.
- We agree a time to attend, out of hours if needed.
- We isolate the extract and open the fan housing.
- Bearings, drive, impeller, motor and mounts are inspected.
- We explain the options and quote a fixed price.
- We complete the work and check the fan runs smoothly.
Getting ready for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Tell us where we can park and unload
Ask for a quote
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before any work starts.
Related advice
When to call us in Four Marks
Some faults are in the controls rather than the fan. Speed controllers, isolators and wiring can all fail, and a fan that won’t start isn’t always a dead motor.
The symptoms we’re asked about most include:
- A worn or slipping fan belt
- A knocking noise from the extract fan
- Vibration spreading from the fan into the ducts
- An overheating extract motor
If you manage a school such as Four Marks Church of England Primary School and the kitchen fan is getting louder, the next break is the time to deal with it.
What to look for in a quote
- Whether the quote shows VAT
- If the quote is a fixed price or an estimate
- What insurance they carry
- Whether the quote is based on a survey or pictures
Honest limits
Some problems need a different service or another trade:
- Grease throughout the ductwork, which needs a full TR19 clean
- Faults in the building’s electrical supply, which need an electrician
- A system that needs redesigning rather than repairing
If you’re not sure, just call us on 0345 646 2711 or send us an email and we’ll give you a straight answer.
Parts of the system we cover
- Kitchen extract fans
- Belts and pulleys
- Bearings
- Roof and wall fans
- Fan motors
- Fan housings
When a fan fails in Four Marks
In Four Marks, food businesses are inspected by environmental health officers from East Hampshire council. Food hygiene rules expect food premises to have suitable and sufficient ventilation. That makes a fan repair urgent rather than something to put off. At about 49 miles from central London, Four Marks sits well inside the area we cover. Visits are booked around your hours, evenings and weekends included.
A fan that rarely runs, like one in a hall kitchen near Church of the Good Shepherd or elsewhere in Four Marks, can seize between uses.
Four Marks is about 4 miles south-west of Alton, in Hampshire. We carry out extract fan repair for commercial premises of every kind in Four Marks and the rest of Hampshire. 683 places in Hampshire are on our list, large and small. Our Southampton page covers sites nearby (20 miles or so).
All of GU34 is covered for extract fan repair, from the main roads to the quietest streets. We cover sites on Read's Field, River Close and Chalk Close and the roads around them. We also cover the places around Four Marks: Medstead (1 mile north), Soldridge (1 mile west), South Town (2 miles north-west), New Copse (2 miles north) and Hattingley (2 miles north-west). We also work in nearby towns such as Basingstoke (11 miles north), Winchester (12 miles west), Fleet (15 miles north-east), Horndean (14 miles south), Alton (4 miles north-east) and Petersfield (9 miles south-east).
Near you in Four Marks
The nearest railway station is Alton station, about 4.6 miles north-east of the centre. Other landmarks nearby include Barton Castle (3.5 miles north-west) and Alton Community Hospital (3.3 miles north-east). Not far away are Red Hill.
Four Marks: your questions answered
Can you come out to a failed extract fan in Four Marks out of hours?
Extract fan emergencies in Four Marks are covered around the clock. Call 0345 646 2711 and tell us what the fan is doing, or not doing. Let us know whether the fan is silent, noisy or tripping the power.
Which council inspects kitchens in Four Marks?
The local authority for Four Marks is East Hampshire council, and its environmental health team does the inspecting. A note of when the fan failed and when it was fixed shows the problem was dealt with.
What causes a noisy extract fan?
There are several possible causes, including bearings, belts, grease and mounts. The safest step is a proper diagnosis before the fault gets worse.
Does the law say we must follow TR19?
Not in itself. Insurers, fire officers and EHOs look to TR19® as the benchmark, and many insurance policies ask for proof of TR19® cleaning. The law behind it is the Fire Safety Order 2005, which applies in England and Wales.
Do you replace extract fans as well as repair them?
Yes. If repair is not sensible, we replace the fan. The replacement has to suit the ductwork and the cooking before recommending a unit.
Can you look after several sites?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together on one programme. Every site has its own report.
How much time does a fan repair need?
Most fan jobs take a few hours on site, depending on the fault and the access to the fan including running the fan afterwards. We plan the work around your service where possible.
Does the report say when we need you again?
Yes. How often depends on use and condition and the report sets out why.
Managing agents and facilities teams in Four Marks
Records are where multi-site compliance often slips. Each visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we will send a fixed quote.