Hertfordshire · Fire damper testing
Fire damper testing in Thorley Street, Hertfordshire
One call covers fire damper testing in Thorley Street, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Dirty dampers that may not close
- Smoke dampers that need testing through their controls
- Dampers flagged on a fire risk assessment
How we handle fire damper testing in Thorley Street
Smoke dampers work differently from fire dampers. A smoke damper is driven by a motor and responds to signals from its controls, so testing means running them through their controls and checking that each blade moves fully and returns. The work covers motorised smoke dampers, wall and floor dampers and riser dampers, and people most often call us about gaps in the fire damper test log and corroded dampers in damp risers and plant rooms.
In rural areas, conversions, country hotels and care homes can have ductwork crossing fire-resisting walls, where the dampers are easy to overlook. The first visit starts by locating each damper.
Every visit ends with a written report and photos, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Where
- Thorley Street (CM23)
- Region
- Hertfordshire
- Paperwork
- Photo report after every visit
- Price
- A fixed price before work begins
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What staff can safely do
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
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. That part needs specialist access and equipment.
Different parts, different methods
Offices and retail
In offices and retail units, dampers tend to be hidden above working areas. We can test in the evening, overnight or at weekends to keep disruption down.
Ceiling voids and risers
Risers and service shafts often hold dampers at each floor. Testing goes floor by floor so nothing is missed.
What fire damper testing looks like in Thorley Street
Food Standards Agency data includes about 18 schools, colleges and universities and about 11 care, childcare and hospital premises within 1.5 miles or so of the middle of Thorley Street. Many buildings of this kind have ductwork through fire-resisting walls and floors, and the dampers at those points need testing at least annually. The fire and rescue service for Thorley Street is Hertfordshire Fire and Rescue Service. When a fire safety officer audits a non-domestic building, maintenance of systems like dampers can come up. The nearest hospital to Thorley Street is Herts and Essex Hospital, about 1.3 miles north-east. Healthcare buildings rely on fire compartments to protect people who can’t easily move, and dampers keep those compartments sealed.
If you manage a care home or clinic near Thorley Street, the testing that a hospital like Herts and Essex Hospital (about 1.3 miles north-east) relies on applies to your dampers too. Site managers at schools such as Thorley Hill Primary School typically find the summer break the easiest time for ceiling work like damper testing. Much Hadham Palace, about 3.6 miles west, is one of the historic houses near Thorley Street, and older buildings converted to new uses often have ventilation added later.
Thorley Street is about 1 mile south of Bishop's Stortford, in Hertfordshire. If you need fire damper testing in Thorley Street, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or email us. We work across South East England and London, including Thorley Street. Our Hertfordshire coverage runs to 381 places, and Thorley Street is one of them. Our Chelmsford page covers sites nearby, about 16 miles away.
Here we cover the CM23 postcode area for fire damper testing. Other places close to Thorley Street include Thorley (1 mile west), Spellbrook (1 mile south), Little Hallingbury (1 mile south-east), Bishop's Stortford (1 mile north) and Gaston Green (1 mile south-east). Further out, we also cover Stevenage (15 miles west), Hoddesdon (10 miles south-west), Cheshunt (13 miles south-west), Hertford (11 miles west), Ware (8 miles west) and Broxbourne (10 miles south-west).
Near you in Thorley Street
Around Thorley Street, our work takes us to kitchens and buildings near Coach And Horses Public House and The Bishop's Stortford High School, among other places. The nearest railway station is Bishops Stortford station, roughly 1.2 miles north. Other landmarks nearby include Moated mound (3.4 miles north-west) and Herts and Essex Hospital (1.3 miles north-east). Not far away are Thorley Wash nature reserve and Portingbury Hills.
When something else is needed
We’ll always give you a straight diagnosis, so here’s what this work can’t put right:
- Gaps in the wall or floor around the damper
- Approving the building’s fire strategy
- Dampers that were never installed where they’re needed
If in doubt, ring 0345 646 2711 or drop us a line and we will say what we think before booking.
What we work on in Thorley Street
- Riser dampers
- Fusible link fire dampers
- Motorised smoke dampers
- Hospitals and care homes
- Wall and floor dampers
- Offices and schools
What we do, step by step
Your staff don’t need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. For a village or hamlet like Thorley Street, tell us about narrow lanes, gates and parking when you book.
- We go through the damper schedule and any previous faults.
- We locate every damper and note any we can’t reach.
- We test fire dampers by dropping them and smoke dampers by operating them through the controls.
- Dampers that pass are reset, and failures are logged with what we found.
- We report the results and offer remedials on failed dampers.
Preparing for the visit
- Agree a time when the area can be out of use
- Let us know about permits to work or site inductions
- Move anything stored near the system
Ask for a quote
Want a quote for fire damper testing? Please ring 0345 646 2711, or send details by email and tell us about the site. We will talk you through the work and send you a fixed quote before you commit to anything.
Related advice
Why deal with it now?
Testing every year builds a history for each damper, which shows patterns early. If the same damper keeps giving trouble, the record shows it long before it fails outright. In a place like Thorley Street, ductwork and fans are easy to forget until something goes wrong.
What you pay depends on how big the system is, what state it’s in and how easy it is to reach. You get a fixed price before work begins, so there are no surprises.
What you get with us
- Fixed quotes, normally within one working day
- Accredited under CHAS and SafeContractor, with ISO 9001
- In business since 2009
- Work around your opening hours, with 24/7 emergency cover
Thorley Street questions
Do you work overnight in Thorley Street?
Yes, evening, overnight and weekend work is normal for us. It means the site in Thorley Street keeps running as normal. Tell us your opening hours when you ask for a quote.
Do you do school damper testing in Thorley Street in the summer holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 18 schools, colleges and universities with registered kitchens within about a mile and a half of Thorley Street. You can ring 0345 646 2711 or send us an email with the dates the site is empty.
Whose job is it to make sure fire dampers are tested?
It’s the responsible person, under the Fire Safety Order 2005. Testing at least yearly and keeping the reports is how they can show it’s being done.
Which sectors do you work in?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
Can you test motorised smoke dampers?
Yes. We test smoke dampers through their control system, as they’re motor driven. Each one is checked for full travel and the result recorded.
Can you come out in an emergency?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Who has the legal duty for fire safety?
In the words of the Fire Safety Order 2005, it’s the responsible person. It’s normally the employer, or whoever controls the building, and in shared buildings more than one person can have duties. Your lease and fire risk assessment should make it clear.
Is TR19 cleaning required by law?
No. TR19® is BESA’s specification, not legislation. The law is the Regulatory Reform (Fire Safety) Order 2005, which makes the responsible person assess and reduce fire risk, and TR19® is the benchmark for showing that grease in the extract is under control.
Between visits
No system stays clean for ever, but care slows the build-up. A few tips:
- Don’t let anything obstruct a damper’s blade
- Keep ceiling hatches and duct panels easy to open
- Fix water leaks in plant rooms and risers promptly
- Keep to at least yearly testing
Failed dampers are set out separately, each with the fault we found, along with an offer to repair or replace them. After a repair, we retest the damper and update the record.
The simplest way to avoid failures is to test on time, every year. Faults caught early are easier to fix.
Nearby places to Thorley Street
Other services in Thorley Street
For landlords and multi-site operators
For anyone managing more than one site, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.