Hertfordshire · Extract fan repair and replacement
Extract fan repair and replacement in Old Knebworth, Hertfordshire
Extract fan repair and replacement for Old Knebworth, with a survey first and a report with photos at the end. Call for a fixed quote.
- A squealing belt on start-up
- Vibration spreading from the fan into the ducts
- A whining or grinding extract motor
Extract fan repair in Old Knebworth: local notes
Look up Old Knebworth on the FSA’s food hygiene register and you’ll find about 17 restaurants, cafés and canteens and about 11 takeaways within roughly a mile and a half of the centre of Old Knebworth. Every one of them that cooks under a canopy depends on its extract fan to keep cooking. It’s North Hertfordshire council that sends environmental health officers to food businesses in Old Knebworth. Ventilation is part of food hygiene law, which expects it to be suitable and sufficient. That’s one more reason not to keep cooking with a broken fan. Old Knebworth, about 26 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included.
School kitchens cannot easily serve lunch without extraction, so if you look after one at a school like Barnwell School, fix a failing fan before term starts.
Old Knebworth is about 3 miles south-west of Stevenage, in Hertfordshire. Every kind of commercial site in Old Knebworth, extract fan repair is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our Hertfordshire coverage runs to 381 places, Old Knebworth among them. We also work in London, around 26 miles away.
All of SG3 is covered for extract fan repair, from the main roads to the quietest streets. Whether your site is on Old Knebworth Lane and Park Lane or anywhere close by, our technicians can take on the work. We also cover Nup End Green (1 mile south-west), Driver's End (1 mile south-west), Rableyheath (1 mile south), Pottersheath (1 mile south) and Langley (2 miles north-west). Within a short drive, we also cover Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (10 miles south-west), Welwyn Garden City (5 miles south), Harpenden (7 miles south-west) and Hitchin (6 miles north-west).
Local landmarks in Old Knebworth
Typical jobs here are in premises near Knebworth Park and Robin Hood And Little John Public House and the streets around them. For rail, the closest station is Knebworth station, roughly 1 mile east. Other landmarks nearby include Lister Hospital (3.7 miles north) and Stevenage Museum (2.2 miles north). The countryside around Old Knebworth includes Mardley Heath.
Extract fan repair in Old Knebworth
Everything a kitchen extract does depends on the fan. When it starts to rattle, hum or slow down, the kitchen gets hot and smoky very quickly. Our engineers track down the fault and fix it, by repairing the fan or replacing it. The work covers roof and wall fans, fan motors and belts and pulleys, and people most often call us about a motor that trips out or overheats and a failed fan that needs a replacement.
Rural kitchens often have fans mounted on outside walls or roofs, exposed to the weather. That, with the grease, is hard on motors and bearings.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- Old Knebworth (SG3)
- Wider area
- Hertfordshire
- Reporting
- Report and pictures after the visit
- Quote
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
FAQs for Old Knebworth
Can you come to Old Knebworth after we close?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Old Knebworth needn’t be disturbed. Let us know the hours you are closed and we’ll book within them.
Which environmental health team covers Old Knebworth?
That is North Hertfordshire council, whose environmental health officers carry out food hygiene inspections in Old Knebworth. Inspections are risk-based, so a visit can come at any time, including the week a fan stops.
How do you protect the area?
We cover floors and nearby surfaces with sheeting before we start, and waste is contained as we go. At the end, the area is cleaned down.
Who is the responsible person?
The law calls them the responsible person. That’s generally the employer or the person in control of the premises, and where several people have control, each can have duties. Your lease and fire risk assessment should make it clear.
How long does an extract fan repair take?
Most fan jobs take part of a day for most faults, with a return visit if parts have to be ordered, including testing. We’ll fit it around the kitchen’s hours where possible.
Will we have to shut during the visit?
Not normally. We work when the area is out of use, such as evenings, overnight, early mornings or weekends, so you keep your normal hours.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and we’ll quote them together.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
The process
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes anything from an hour or two to a full visit, depending on the fault. Visits to a village like Old Knebworth are booked in advance, at a time that suits whoever runs the site.
- 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.
- You hear whether repair or replacement makes sense, with a fixed quote.
- We complete the work and check the fan runs smoothly.
Getting ready for the visit
- Agree a time when the area can be out of use
- Have your last certificate or report to hand
- Allow time for equipment near the work to be turned off and cool down
Ask for a quote
Photos are the quickest way to a quote: 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 many jobs can be priced from that alone.
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Landlords, agents and facilities managers
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Places near Old Knebworth
What else we do in Old Knebworth
What your team can do, and what needs us
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
Between visits
Results last longer with the right care. Here’s what we suggest:
- Keep the area around the fan controls clear
- Keep all filters fitted while cooking
- Keep a record of any trips or stoppages
- Keep the grease filters clean and fitted
Once the fan is running smoothly, keep the filters clean. The less grease that reaches the fan, the longer its parts last and fewer faults.
Noise is usually the first sign of a fan problem. Booking a check at this stage keeps it a planned job instead of a breakdown at the worst moment.
What we’re called out for in Old Knebworth
Fans everywhere, Old Knebworth included, live in a hard environment: heat, grease, steam and long running hours. Moisture can rust housings and fixings and eventually any fan simply wears out.
These are the problems we see most often:
- A worn or slipping fan belt
- A knocking noise from the extract fan
- A failed fan that needs a replacement
- A fan that whines, hums or grinds
A fan that rarely runs, like one in a hall kitchen near Church of St Mary and St Thomas or elsewhere in Old Knebworth, can seize between uses.
What to look for in a quote
- Whether the whole system is included, or only the parts that are easy to reach
- If the quote is a fixed price or an estimate
- What paperwork you get at the end
- Proof of accreditation you can verify
Why act early in Old Knebworth
Wherever the kitchen is, Old Knebworth included, the fan often sits on an outside wall or roof, so its noise does not stay in the kitchen. Dealing with the fault brings the noise back down before it becomes a nuisance. Rural sites can’t always move to another kitchen or room when something fails.
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.
Why book with us
- A written report with pictures after every visit
- Every job surveyed first
- A fixed price before any work starts
- Full insurance on every job
Take a look at what affects the cost and how to check a contractor.
How the job changes from site to site
Roof and wall-mounted fans
Fans are often mounted on roofs or external walls. Access affects how long a repair takes and we plan around it.
Impellers and housings
The fan housing collects grease too. We check both, and cleaning can form part of the repair.