Surrey · Extract fan repair and replacement
Extract Fan Repair in Hammer Bottom
Extract fan repair for Hammer Bottom, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- A fan that keeps cutting out
- Poor airflow at the canopy
- A fan rattling in its housing
Staff cleaning versus specialist work
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.
Extract fan repair in Hammer Bottom, done properly
Wherever your kitchen is in Hammer Bottom, fan work means the extract has to be isolated, so the job is fitted around the kitchen’s hours. Evenings, overnight and weekends are all possible and there’s a 24/7 emergency line if the fan fails while you’re cooking. If you have a worn or slipping fan belt and a whining or grinding extract motor, we can help, from roof and wall fans, kitchen extract fans and fan housings onwards.
Rural kitchens often have fans mounted on outside walls or roofs, exposed to the weather. Weather and grease together wear out motors and bearings.
Duct Doctor has been trading since 2009, and we are 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
- Hammer Bottom (GU27, GU30)
- Wider area
- Surrey
- Reporting
- Written report with photos
- Price
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026

What affects the cost of extract fan repair
You will get a fixed price before any work starts. It’s based on:
- How many systems or sites are involved
- Travel, parking and unloading
- Working hours and out-of-hours timing
- The condition of the system
You won’t find a price list here, because the cost depends on the site in front of us. For a fixed quote, give us a ring on 0345 646 2711 or drop us a line, and we’ll explain what it covers.
What we need to know
To help us quote quickly, please include:
- Photos showing the whole system and its surroundings
- Problems your staff have spotted
- The roof, plant room or outside wall the system runs to
- The times we could work without disrupting the site
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Extract fan repair in Hammer Bottom: local notes
There are about 8 restaurants, cafés and canteens and about 6 takeaways across Hammer Bottom and its immediate surroundings (about a mile and a half), according to the Food Standards Agency’s register. Those that cook under a canopy rely on a fan that runs every hour they’re open. Environmental health officers from Waverley council inspect food businesses in Hammer Bottom. A kitchen with no working extract can fall short of the suitable and sufficient ventilation food hygiene rules expect. That’s one more reason not to keep cooking with a broken fan. We cover Hammer Bottom, about 41 miles from central London, as part of our work across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
Holidays are the time to replace a tired kitchen fan at schools such as Woolmer Hill School, rather than mid-term. Occasional-use kitchens, such as a hall kitchen near The Parish Church of St Peter or elsewhere in Hammer Bottom, are where a stiff or seized fan can turn up.
Hammer Bottom is about 9 miles south of Farnham, in Surrey. Hammer Bottom gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with pictures. Our Surrey coverage runs to 395 places, Hammer Bottom among them. There’s also a page for Guildford, about 14 miles away.
Postcode districts we cover here for extract fan repair: GU27 and GU30. You’ll find streets such as Hammer Vale, Sandy Lane and Hewshott Lane, all of which we cover for extract fan repair. We also cover Hammer (1 mile east), Woolmer Hill (1 mile south-east), Bramshott Chase (1 mile north), Linchmere (1 mile south) and Shottermill (1 mile east). Further out, we also cover Guildford (14 miles north-east), Farnham (9 miles north), Cranleigh (13 miles east), Ash (11 miles north), Godalming (9 miles north-east) and Farncombe (10 miles north-east).
What’s near Hammer Bottom
Typical jobs here are in premises near The Prince of Wales pub and Camelsdale Primary School and the streets around them. The closest station to Hammer Bottom is Haslemere station, roughly 1.9 miles east of the centre. Nearby you’ll also find Haslemere and District Hospital (2.4 miles east). Not far away are Wheeler's Down and Lynchmere Commons.
Places near Hammer Bottom
What else we do in Hammer Bottom
When something else is needed
Some problems need a different service or another trade:
- Problems with the gas supply or its interlock valve
- A system that needs redesigning rather than repairing
- Problems with the electrical supply to the fan (an electrician’s job)
If in doubt, call us on 0345 646 2711 or drop us a line and we’ll say what we think.
Parts of the system we cover
- Belts and pulleys
- Fan motors
- Bearings
- Fan housings
- Roof and wall fans
- Kitchen extract fans
What we do, step by step
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 part of a day for most faults, with a return visit if parts have to be ordered, and the area is cleaned down before we leave. Photos of the system and how to reach it help us plan a visit to Hammer 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.
- Each part is checked in turn: motor, bearings, drive, impeller and fixings.
- We explain the fault and give you a fixed price for the fix.
- We fix or replace the fan, then test it running before we leave.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Tell us where we can park and unload
- Have your last certificate or report to hand
Getting a quote
Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Read more
Different parts, different methods
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.
Impellers and housings
Grease settles inside the fan housing as well as on the blades. Both are inspected and cleaning may be part of the fix.
Managing agents and facilities teams in Hammer Bottom
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we will come back with a fixed quote.
Facilities teams in offices, schools and healthcare sites book us too in Hammer Bottom and across Surrey. Larger estates can be phased building by building around the people who use them.
Hammer Bottom: your questions answered
Who carries out food hygiene inspections in Hammer Bottom?
In Hammer Bottom, it’s Waverley council that carries out food hygiene inspections. Keeping the fan serviced is easier than explaining a broken one on inspection day.
What if my kitchen extract fan stops in Hammer Bottom at night?
Extract fan emergencies in Hammer Bottom are covered around the clock. Use 0345 646 2711, our emergency number, at any time. Details of the make and model help us plan the repair.
Is repair an option before replacing the whole fan?
That depends on what we find. After diagnosing, we explain whether it can be repaired, then give you a fixed quote.
Can we book visits on a schedule?
Yes, of course. Tell us what you have and how it’s used and we will propose a schedule with a fixed quote.
Which records should we keep?
Each report and certificate we give you, kept together in your maintenance log with your in-house cleaning records. BESA advises that certificates record the date, location and technician.
Where does the waste go?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. None of it is left on site.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before any work starts, and waste is contained as we go. At the end, the area is cleaned down.
Do I get a report after the visit?
Yes. You get a written report with photos after every visit, showing what was done, anything we couldn’t reach and when the next visit is due. Kitchen extract cleans to TR19® Grease also get a certificate through the BESCA Vent Hygiene Elite portal.
What happens if it’s left?
Weak extraction leaves heat, smoke and fumes in the kitchen. The kitchen becomes an uncomfortable place to work, and more grease settles where it shouldn’t. Rural sites can’t always move to another kitchen or room when something fails.
What you pay depends on the size of the system, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so there are no surprises.
What you get with us
- Out-of-hours work and a 24/7 emergency line
- Every job surveyed first
- CHAS and SafeContractor accredited, with ISO 9001
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
See our cost guide and how to check a contractor.