Hertfordshire · Extract fan repair and replacement
Extractor fan repair in Boxmoor
Specialist extract fan repair for Boxmoor: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- A humming noise from the fan motor
- A squealing belt on start-up
- A fan that keeps cutting out
About our extract fan repair in Boxmoor
Think of it as a check-up for the fan: listen to it, diagnose the fault, then treat it. What you want back is a fan that runs smoothly and a clear explanation of what was done. We are often asked to deal with a failed fan that needs a replacement and a belt-driven fan that squeals, across fan housings, belts and pulleys and roof and wall fans.
A callout to a place like Boxmoor is planned so the first visit fixes as much as possible, so pictures of the fan and its rating plate help.
The report is your system’s health record: a dated account with pictures of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Location
- Boxmoor (HP1, HP3, HP2)
- Region
- Hertfordshire
- Reporting
- Written report with photos
- Quote
- A fixed price before work begins
- Hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
When it’s something else
We’ll always give you a straight diagnosis, so here’s what extract fan repair will not do:
- Problems with the gas supply or its interlock valve
- A greasy canopy and duct that a fan repair won’t touch
- A system that needs redesigning rather than repairing
If you’re not sure, just call 0345 646 2711 or email us and we will give you a straight answer before you book.
What the work covers
- Fan housings
- Kitchen extract fans
- Belts and pulleys
- Fan motors
- Bearings
- Roof and wall fans
What affects the cost of extract fan repair
There’s no set price list, because no two systems are the same. What we look at:
- Any permits to work or inductions
- Whether we need access equipment or extra panels
- Whether several sites go on one quote
- One-off work versus a regular cycle
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will go through it with you.
What to send for a quote
Many jobs can be priced from photos and some basics. Send what you can of the following:
- Photos showing the whole system and its surroundings
- Close-ups of filters, grilles, hatches or access panels
- The times we could work without disrupting the site
- Your last certificate, test record or report
Quotes are quick. Call or email with a few details and you’ll normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
What we do, step by step
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes a few hours for most repairs, longer for a full fan replacement. In a smaller place like Boxmoor, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- We ask what the fan is doing, from noise and vibration to a full stop.
- Power to the fan is isolated before we open the housing.
- The impeller, bearings, belts or drive, motor and mounts are all inspected.
- 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.
Getting ready for the visit
- Dig out any earlier paperwork for the system
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
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. Add the site type and your opening hours, and we can price many jobs without a visit.
Related advice
Managing agents and facilities teams in Boxmoor
Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.
Common questions in Boxmoor
Who would carry out a food hygiene inspection at a kitchen in Boxmoor?
Kitchens in Boxmoor are inspected by Dacorum council’s environmental health officers. If the extract fan has failed, it’s worth having the repair booked, and the details to hand, before an officer visits.
Is there an emergency callout for extract fans in Boxmoor?
Our emergency line runs 24/7, and Boxmoor is within the area we cover. Ring 0345 646 2711 at any hour and describe the fault. If you can, stop cooking until the fan is checked.
How much time does a fan repair need?
That depends on what’s wrong, but most jobs take an hour or two to diagnose, then longer if parts or a new fan are needed. We’ll give you a better idea once we have diagnosed it.
What do you do with what you remove?
We take it away when we go. During the work, it’s contained to keep the area clean.
Will you fit a new fan if ours can’t be repaired?
We can. Replacing a fan is part of our fits and repairs work and we’ll talk you through what’s involved.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Is there a survey before the work?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
What the work involves, part by part
Roof and wall-mounted fans
An external fan faces the weather as well as the grease. Rust on fixings and housings is a frequent find.
Motors and bearings
A grinding or rumbling noise often means worn bearings. We diagnose whether it’s the bearings or the motor itself before recommending a fix.
Towns and villages near Boxmoor
Other services in Boxmoor
Do you need extract fan repair in Boxmoor?
Fans everywhere, Boxmoor included, live in a hard environment: hot, greasy, damp air for hours on end. Moisture can rust housings and fixings, and age catches up with every fan in the end.
Look out for these warning signs:
- Poor airflow at the canopy
- An overheating extract motor
- An extract fan that rattles or knocks
- A fan that whines, hums or grinds
For school kitchens, at schools like Boxmoor Primary School for example, a planned fan repair in the holidays avoids losing lunches in term time.
What your quote should include
- Whether inaccessible sections are listed on the report
- Proof of insurance
- Exactly which parts of the system are covered
- Whether the quote shows VAT
Extract fan repair around Boxmoor
The FSA’s food hygiene register shows about 82 restaurants, cafés and canteens and about 52 takeaways and sandwich shops within about 1.5 miles of central Boxmoor. Those that cook under a canopy rely on a fan that runs every hour they’re open. In Boxmoor, food businesses are inspected by environmental health officers from Dacorum council. Food hygiene rules expect food premises to have suitable and sufficient ventilation. That is one more reason not to keep cooking with a broken fan. At about 24 miles from central London, Boxmoor sits well inside the area we cover. The visit is fixed around your opening hours, not ours.
If you cook near Hemel Hempstead 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 John the Evangelist and Attached Church Hall or elsewhere in Boxmoor, can seize between uses.
Boxmoor is about 1 mile south-west of Hemel Hempstead, in Hertfordshire. We carry out extract fan repair for commercial premises of every kind in Boxmoor and the rest of Hertfordshire. Our Hertfordshire coverage runs to 381 places, Boxmoor among them. For sites nearby, see our Milton Keynes page (23 miles or so).
Work in HP1, HP3 and HP2 is surveyed, quoted and booked the same way as anywhere else. Whether your site is on Cardy Road, Heath Lane and London Road or anywhere close by, our technicians can take on the work. Main roads around Boxmoor include the A4251, which makes travel easy for evening and night visits. Close by, we work in Warner's End (1 mile north), Grovehill (1 mile north-east), Woodhall Farm (1 mile north-east), Apsley (1 mile south-east) and Hemel Hempstead (1 mile north-east). We also work in nearby towns such as Watford (7 miles south-east), St Albans (7 miles east), Welwyn Garden City (13 miles east), Harpenden (8 miles north-east), Hatfield (11 miles east) and Borehamwood (11 miles south-east).
What’s near Boxmoor
In Boxmoor, that means kitchens and buildings near Gadebridge Park, The Hemel Hempstead School and Fishery Inn. Boxmoor has its own railway station: Hemel Hempstead station. Well-known places in the area include Hemel Hempstead Hospital (0.7 miles north-east). For a walk, there’s Long Deans.
Aftercare tips
Aftercare is simple, and it makes the next visit easier:
- Keep the grease filters clean and fitted
- Make sure the fan is cleaned with the rest of the system
- Keep access to the fan controls unobstructed
- Tell us about a new rattle or whine right away
Listen to the fan over the next few weeks. A new noise or vibration is worth reporting early rather than waiting for it to fail.
A 3, 6 or 12-monthly cleaning plan brings us back at set intervals, which means the fan is seen regularly and wear is caught earlier.