Hertfordshire · Fire damper testing
Fire damper inspection in Lemsford
One call covers fire damper drop testing and smoke damper testing, with a record for each damper in Lemsford: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Dampers clogged with dust or grease
- Fire dampers that haven’t been tested for over a year
- Missing or out-of-date damper records
About our fire damper testing in Lemsford
Smoke dampers work differently from fire dampers. Smoke dampers are motorised and are opened and closed by a control system, so we test them by operating them through those controls and checking that each blade moves fully and returns. If you have dampers clogged with dust or grease and dampers affected by leaks or condensation, we can help, from riser dampers, fusible link fire dampers and motorised smoke dampers onwards.
Rural buildings that have been converted or extended can have ducts passing through fire-resisting walls, where the dampers are easy to overlook. A first test typically starts with finding them all.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Lemsford (AL8)
- Region
- Hertfordshire
- Records
- Report and photos after the visit
- Quote
- Fixed quote, normally within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Your questions about fire damper testing in Lemsford
Which fire authority looks after Lemsford?
That’s Hertfordshire Fire and Rescue Service. A report listing every damper, its location and its result is the easiest way to show the dampers are maintained.
Can you get to a site in Lemsford?
Yes. Villages and rural sites across the South East are part of our work, Lemsford included. Let us know about access, parking and anything unusual about getting there when you book.
What about areas you cannot get to?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, which we can install.
Do you carry out smoke damper testing?
Yes. Smoke dampers are motorised, so we test them by operating them through their controls. Each one is checked for full travel and the result recorded.
How do you deal with dampers that can’t be reached?
It’s noted as inaccessible rather than skipped. Once there’s a panel or a way through the ceiling, it can be tested.
Can you come out in an emergency?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we’ll advise on what to do next.
What is TR19?
A BESA specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t law, but it’s the benchmark.
Will we have to shut during the visit?
Not usually. The area we are working in has to be out of use while we are there, so the visit goes in a quiet slot.
Places near Lemsford
More services for Lemsford
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, so you can show an insurer or inspector what was done at each site.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so each one has its own record.
In-house cleaning or a specialist?
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
What the work involves, part by part
Smoke dampers
Because they’re linked to controls, smoke damper tests can need some coordination. We plan that with you before the visit.
Offices and retail
Each new fit-out brings a risk of damaged or covered dampers. Testing after a fit-out shows whether anything was disturbed.
What affects the cost of fire damper testing
The price is fixed before any work begins. It’s based on:
- How many systems or sites are involved
- Access, including roofs, risers and ceiling voids
- Site requirements such as sign-in and permits
- The condition of the system
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
What to send for a quote
What to send for a quote:
- Your opening hours and when the area is out of use
- Any access panels or hatches you can see
- A few general shots of the system
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Need a price for fire damper testing? Please ring 0345 646 2711 or use the quote form with a few details about the site. We will talk you through the work and send you a fixed quote before you commit to anything.
Fire damper testing around Lemsford
There are about 12 schools, colleges and universities and about 3 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within roughly a mile and a half of the centre of Lemsford. Larger buildings like these are often divided into fire compartments, with dampers where ducts pass between them. Queen Elizabeth II Hospital is the nearest hospital, about 2.1 miles south-east of Lemsford. Smaller healthcare sites, from surgeries to care homes, need the same annual damper test as a hospital. The fire and rescue service for Lemsford is Hertfordshire Fire and Rescue Service. When a fire safety officer audits a non-domestic building, maintenance of systems like dampers can come up.
Queen Elizabeth II Hospital, about 2.1 miles south-east of Lemsford, is the kind of building where dampers protect every compartment; smaller care sites need the same annual tests. A school like Applecroft School can have any dampers tested over half-term without disturbing lessons.
Lemsford is about 2 miles west of Welwyn Garden City, in Hertfordshire. If you need fire damper testing in Lemsford, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or drop us a line. Our area covers London and the South East, including Lemsford. We cover 381 places across Hertfordshire, from busy centres to quieter spots. London is in our area too, about 21 miles from Lemsford.
Here we cover the AL8 postcode area for fire damper testing. Whether your site is on Mill Close, Lemsford Village and Great North Road or anywhere close by, our technicians can take on the work. Close by, we work in Stanborough (1 mile south), Coleman Green (2 miles west), Cooper's Green (2 miles south-west), Hatfield (2 miles south) and Smallford (3 miles south-west). Larger places within reach include Watford (12 miles south-west), Hemel Hempstead (10 miles west), Stevenage (8 miles north), St Albans (5 miles south-west), Harpenden (5 miles west) and Hitchin (11 miles north).
Local landmarks in Lemsford
In Lemsford, that means kitchens and buildings near Stanborough Park, Stanborough School and The Sun Inn, among other places. Lemsford’s nearest station is Welwyn Garden City station, about 1.2 miles east of the centre. Well-known places in the area include Queen Elizabeth II Hospital (2.1 miles south-east) and The Bunker at Hatfield Police Station (2.1 miles south). Open spaces near Lemsford include Lemsford Springs.
Signs you need fire damper testing in Lemsford
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person has a duty to keep fire safety measures working, and dampers are part of those measures. Whoever that is, whether employer, owner, landlord, facilities manager or managing agent, needs to be able to show the dampers work.
It’s time to book a visit if you see:
- Missing or out-of-date damper records
- Dampers that cannot be reached without an access panel
- Dampers flagged on a fire risk assessment
- Blades that jam part-way when released
If you manage a historic building in the area (Digswell House is about 1.9 miles north-east), dampers fitted during conversions can be hard to reach and need recording.
Before booking anyone
- Whether the quote is based on a survey or photos
- Whether the work can be done while the site is closed
- If the quote is a fixed price or an estimate
- How VAT is shown on the quote
Honest limits
In fairness, some problems need a different fix:
- Holes around ductwork in fire-resisting walls
- Missing dampers that a designer needs to specify
- Fire alarm or control system faults behind a smoke damper
If in doubt, phone us on 0345 646 2711 or email us and we’ll say what we think.
What the work covers
- Hospitals and care homes
- Riser dampers
- Fusible link fire dampers
- Offices and schools
- Motorised smoke dampers
- Wall and floor dampers
How the visit works
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before any work starts, and the area around the work is covered and protected. On site, it takes a morning or an afternoon for a small number of dampers, longer where there are many. A quick note on how to find the site and where to park makes a visit to Lemsford run smoothly.
- We gather what’s known about the dampers, from drawings, registers or past reports.
- We find every damper and open it up through the access panel.
- We release each fire damper blade and operate smoke dampers from their controls.
- Each one that passes is reset, ready to work.
- The results go into a report, with failed dampers and remedials listed.
Preparing for the visit
- Clear the space around the work
- Let us know how we reach the system, including roofs, risers and plant rooms
- Dig out any earlier paperwork for the system
How to get a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, phone us on 0345 646 2711 or use the quote form.