Hertfordshire · England
Fire Rated Sealant in Sarratt
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Sarratt and across Hertfordshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Damaged fire sealant left by other trades
- Gaps where walls meet ceilings or slabs
- Joints picked up in a fire-stopping survey
When it is not the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- Certifying a building or signing off its fire safety
- Fire doors that need new seals, closers or hardware
- Assessing a building’s fire safety
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Door frames
- Linear gaps
- Service penetrations
- Flats & HMOs
- Pipe & cable gaps
- Plasterboard & masonry
Fire rated sealant in Sarratt
Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. We cut out the wrong material and reseal with a fire-rated product tested for that kind of gap. If you are dealing with gaps left after a refit or conversion and old fire sealant that has split or come away, we can help.
If you have holiday lets, a converted barn used for business or a community building near Sarratt, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Sarratt (WD3)
- Region
- Hertfordshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Sarratt questions
Is Sarratt within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Sarratt for fire rated sealant?
Yes. We work across London and the South East, and Sarratt is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
What does fire rated sealant cost?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or drop us an email and tell us what needs doing and where.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in.
Do you offer different sealant colours?
In most cases you can choose. We will explain which colours are available and agree one before work begins.
Do you take on fire stopping in schools and offices?
Yes, whether the building is a school, an office, flats or an HMO, and whether it’s in use or not. Let us know the building’s hours and we’ll plan the work to suit.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Common problems we fix in Sarratt
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it isn’t installed as tested. Rushed fire stopping is common, especially where it was squeezed in at the end of a project.
The most common problems we see are:
- Unsealed gaps where pipes and cables go through a wall
- Linear gaps at the head of walls
- Fire stopping disturbed by later work
- Fire seals that have cracked with movement
Community buildings like Church of the Holy Cross are part of the picture too: gaps around pipes and cables are worth checking after any building work there.
Questions to ask before you book
- Whether they’re fully insured
- Whether they seal over old material or remove it
- Is VAT in the price?
- Who does the work, and how experienced they are
For landlords and businesses
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Also near Sarratt
Other services in Sarratt
What fire rated sealant looks like in Sarratt
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details.
For site and facilities teams at buildings such as Sarratt Church of England Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices. If you let a flat or house near Chorleywood station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Sarratt is about 3 miles north of Rickmansworth, in Hertfordshire. From the centre of Sarratt to the outskirts, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Sarratt is one of 381 towns and villages in Hertfordshire where we work. You can also see our page for London, about 21 miles away.
Every address in WD3 is covered for fire rated sealant, from the main roads to the quietest streets. That includes homes and businesses on Alexandra Road, Downer Drive and The Briars. Close by, we work in Micklefield Green (1 mile south-east), Bucks Hill (1 mile north-east), Chandler's Cross (2 miles south-east), Loudwater (2 miles south) and Chorleywood West (2 miles south). Larger places within reach include Watford (4 miles east), Hemel Hempstead (5 miles north), St Albans (8 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (11 miles north-east) and Hatfield (12 miles north-east).
Local landmarks in Sarratt
Locally, jobs take us to homes and businesses close to The Boot Public House and St Clement Danes School. The nearest railway station is Chorleywood station, roughly 2.3 miles south-west. Other landmarks nearby include Chiltern Open Air Museum (3.8 miles south-west) and Leavesden Hospital (4 miles east). Green spaces nearby include Sarratt Bottom nature reserve and Tumbling Bay.
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes from a few hours to a few days, depending on the number of gaps and the access. For a village or hamlet like Sarratt, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your records.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Related advice
Different surfaces, different methods
Linear gaps
Head-of-wall gaps are often hidden above suspended ceilings. We work along the whole run.
Door frames
Behind most architraves is a gap between frame and wall. We seal any open gap to the product’s tested details before the trim goes back.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Include hidden areas like risers in routine checks
- Flag any open gap you spot round a pipe or cable
- Photograph sealed gaps before they’re covered up
- Check whether a sealant can be painted before decorating over it
Avoid covering a sealed gap with anything that is not part of the tested detail. If it needs repair, use the same type of product. Ask us if you’re not sure which product was used.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.