Hertfordshire · England
Fire-rated sealant in Throcking, Hertfordshire
Problem with your fire-stopping gaps in Throcking? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Ordinary sealant used where a fire-rated product was needed
- Fire seals that have cracked with movement
- Open joints along the top of partitions
Common problems we fix in Throcking
Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
People normally contact us when they notice something like this:
- Seals cut through by electricians, plumbers or data installers
- Fire seals that have cracked with movement
- Unsealed gaps around fire door frames
- Joints picked up in a fire-stopping survey
Community buildings like Holy Trinity Church are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
What your quote should include
- When the joint can take water or movement
- How much experience the applicator has
- How long the guarantee is
- What happens if they find a problem under the old sealant
Fire rated sealant for homes and businesses in Throcking
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it, so we follow the tested detail for each one. Common call-outs are for standard silicone or caulk in a fire-stopping gap and holes left by a change of layout, across service penetrations, flats & HMOs and pipe & cable gaps.
Somewhere as small as Throcking, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Throcking (SG9)
- Region
- Hertfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
More services for Throcking
What the job involves on each surface
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. Each one is sealed to the product’s tested detail, and tell you if sealant alone is not the right fix.
Flats and HMOs
Conversions generally leave a mix of old and new service holes. We seal the ones on your specification with a tested product and the locations noted.
Commercial buildings in Throcking
In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you look after a building such as Freman College, service openings in fire-resisting walls need checking after any refurbishment.
Throcking is about 6 miles north-east of Stevenage, in Hertfordshire. For fire rated sealant in and around Throcking, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We’re based in Crawley and cover Hertfordshire, Throcking included. We cover 381 towns and villages across Hertfordshire. Our Chelmsford page covers work nearby.
Jobs for fire rated sealant in SG9 works the same way as everywhere else we cover. We also cover the places around Throcking: Cottered (1 mile south-west), Chipping (1 mile north-east), Buntingford (2 miles east), Aspenden (2 miles south-east) and Layston (2 miles east). Within a short drive, we also cover Stevenage (6 miles south-west), Bishop's Stortford (11 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (9 miles west), Hoddesdon (14 miles south) and Hatfield (15 miles south-west).
Local landmarks in Throcking
A little further out are Clothall Castle (4.1 miles west). Open spaces near Throcking include Hawkins Wood.
Why deal with it now?
Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, so we follow the maker’s details on every gap. In a small place like Throcking, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- 12-month guarantee on every job
- Quality sealants from Arbo and Everbuild
- Over 20 years’ experience
- Anti-fungal silicone where joints get wet
Read our cost guide and customer reviews.
Questions from Throcking
Is Throcking within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is fire rated sealant in Throcking guaranteed?
All our work, in Throcking and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
How do I get a quote for fire rated sealant in Throcking?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Is standard sealant good enough for a fire gap?
No. Standard sealants are not made or tested to stop fire. We cut it out and reseal with a fire-rated product.
Can you tell me which gaps need fire stopping?
No. Your fire risk assessor, designer or building control decides that. Our job is applying the sealant to their specification.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What fire rating will the seal have?
We don’t certify fire stopping or quote ratings. Our part is installing the specified product to its tested details and giving you a record of where it went.
Landlord and commercial work in Throcking
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Housing providers, facilities teams and property managers book us too in Throcking and across Hertfordshire. Several sites can be quoted together, and we are fully insured.
Quotes for fire rated sealant in Throcking
We don’t publish a price list, because jobs vary so much. The quote depends on:
- The old material and how stubborn it is
- Mould in or behind the old joints
- The type of sealant required
- Working hours on commercial sites
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- If someone has resealed it before
- Any access issues, like height or stairs
- What’s wrong with the joints now
- The rough size of the job
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours for a handful of gaps, and longer for a whole building. In a small place like Throcking, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Locations and products are noted so you have them on file.
Before we arrive
- Clear items away from the joints we are working on
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
Get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Advice
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.