Buckinghamshire · England
Fire-rated sealant in Harefield, Buckinghamshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations for householders, landlords and businesses in Harefield. Fully insured, ARBOMaster approved and guaranteed for a year.
- New service routes left unsealed after building work
- Seals cut through by electricians, plumbers or data installers
- Gaps where walls meet ceilings or slabs
Common questions in Harefield
Do you cover Harefield for fire rated sealant?
Yes, Harefield is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Denham station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Fire rated sealant in Harefield, done properly
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. One new cable or pipe can leave a gap that nobody goes back to seal. We seal them with a product tested for that kind of gap. If you have new service routes left unsealed after building work and fire seals that have cracked with movement, we can put it right, whatever the surface.
Community buildings, schools and small businesses around places like Harefield have washrooms and kitchens that see a lot of use. Sealant and fire-rated joints there matter as much as in any larger building.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.

- Place
- Harefield (UB9)
- Region
- Buckinghamshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Plasterboard walls
Many fire-resisting walls in flats, offices and conversions are plasterboard. We use a product tested in that kind of wall for the gap we are sealing.
Flats and HMOs
Conversions usually leave a mix of old and new service holes. We seal the ones on your specification with a tested product and record where they are.
Workplaces and buildings in Harefield
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
If you look after a church, hall or community building such as Harefield Baptist Church, service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Denham station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Harefield is about 3 miles south of Rickmansworth, in Buckinghamshire. Whether you’re in the middle of Harefield or further out, we cover fire rated sealant for every kind of property. 263 places in Buckinghamshire are on our list. There’s also a page for London, about 18 miles away.
We cover every part of the UB9 postcode area for fire rated sealant. If you need fire rated sealant at a property on High Street, Vernon Drive and New Park Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out fire rated sealant in Hill End (1 mile north), Woodcock Hill (1 mile north-east), Batchworth Heath (2 miles north-east), Batchworth (2 miles north-east) and Mill End (2 miles north). Further out, we also cover High Wycombe (12 miles west), Chesham (9 miles north-west), Marlow (13 miles west), Amersham (7 miles north-west), Beaconsfield (7 miles west) and Chalfont St Peter (3 miles west).
Landmarks near Harefield
Locally, jobs take us to homes and businesses close to The Green, The King's Arms Public House and The Harefield Academy, among other places. The closest station to Harefield is Denham station, roughly 2 miles south. Nearby you’ll also find Harefield Hospital (within half a mile north-west) and Chiltern Open Air Museum (3.4 miles north-west). Not far away are Horse Shoe Bay and Dews Farm Sand Pits.
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes from a few hours to a few days, depending on the number of gaps and the access and we leave things clean and tidy. Parking around Harefield is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- We remove any old or unsuitable filler and clean the gap.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
- Keep children and pets away from the work area
How to get a quote
If you are in Harefield and need fire rated sealant, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Read more
Why act early in Harefield
If an assessor has flagged gaps, it makes sense to close them before the next review. Having them sealed and recorded now means you can show the action was taken. Homes in smaller places like Harefield can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work
- 20+ years of sealant experience
- Old sealant always removed completely
Take a look at what affects the cost and our reviews.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Fire risk assessments, which need a qualified assessor
- Sign-off of the building, which sits with building control or your assessor
- Doors that are not fire doors in the first place
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Flats & HMOs
- Service penetrations
- Plasterboard & masonry
- Linear gaps
- Door frames
- Pipe & cable gaps
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Ask every contractor to reseal any fire stopping they disturb
- File the fire-stopping record where your assessor can find it
- Look in service cupboards and ceiling voids from time to time
- Never patch a fire seal with standard sealant
Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes and the list grows.
When to call us in Harefield
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
It’s worth asking for a quote if you see:
- Joints picked up in a fire-stopping survey
- New service routes left unsealed after building work
- Linear gaps at the head of walls
- Gaps around pipes and cables through fire-resisting walls
Schools such as Harefield Infant School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
What your quote should include
- How the surfaces are prepared before sealing
- Whether VAT is included
- Whether they seal over old material or remove it
- Who does the work, and how experienced they are
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
