Buckinghamshire · England
Fire Rated Sealant in Naphill
Professional fire rated sealant in and around Naphill, with old sealant always removed completely and a 12-month guarantee.
- Gaps where walls meet ceilings or slabs
- Damaged fire sealant left by other trades
- Gaps filled with a product that isn’t fire-rated
Naphill: your questions answered
Will you come out to Naphill?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Naphill for fire rated sealant?
Yes. We work across London and the South East, and Naphill is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Can you seal over the old sealant?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Can you give us a record of the work?
Yes. Every gap we seal is listed with the product used so it’s there for the next inspection.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Fire rated sealant for homes and businesses in Naphill
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through. We work on pipe & cable gaps, plasterboard & masonry and service penetrations, and people most often call us about joints picked up in a fire-stopping survey and damaged fire sealant left by other trades.
If you have holiday lets, a converted barn used for business or a community building near Naphill, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
We stand behind the work with a 12-month guarantee, so you are covered after we have gone.
- Where
- Naphill (HP14)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Naphill
More services for Naphill
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Big openings where sealant alone isn’t the tested solution
- Assessing a building’s fire safety
- Issuing a fire rating or certificate for a building
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Naphill
- Door frames
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
- Plasterboard & masonry
- Linear gaps
Fire rated sealant around Naphill
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, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
Community buildings like Church of St Botolph are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. If you let a flat or house near Saunderton station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Naphill is about 3 miles north-west of High Wycombe, in Buckinghamshire. Across the HP14 area, we can carry out fire rated sealant at your property. We cover 263 towns and villages across Buckinghamshire, large and small. There’s also a page for Reading, roughly 17 miles from Naphill.
We work across the HP14 postcode area for fire rated sealant. Whether your property is on Christopher Close, Main Road and Purssells Meadow or anywhere close by, our applicators can take on the job. We also cover Walter's Ash (1 mile north-west), Lower North Dean (1 mile north-east), Hughenden Valley (1 mile east), Upper North Dean (1 mile north) and Downley (1 mile south). Within a short drive, we also cover Aylesbury (11 miles north), High Wycombe (3 miles south-east), Chesham (8 miles north-east), Marlow (6 miles south), Amersham (8 miles east) and Beaconsfield (7 miles south-east).
Local landmarks in Naphill
We work in homes and buildings around The Royal Grammar School, Pipers Corner School and The Wheel pub and the streets around them. Naphill’s nearest station is Saunderton station, about 2.1 miles west of the centre. Well-known places in the area include Eden (2.8 miles south) and High Wycombe Castle (2.8 miles south-east). The countryside around Naphill includes Prestwood Local Nature Reserve.
Leave it or put it right?
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. Sealing it properly restores what the wall was there to do, and the work involved is often modest. In a small place like Naphill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Why choose Mr Mastic in Naphill
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
- 12-month guarantee on every job
- Any old sealant cut out fully, not covered over
Take a look at our cost guide and customer reviews.
What happens on the day
Before we leave, we go over the finished joints with you. The visit itself generally takes from a few hours to a few days, depending on the number of gaps and the access, depending on how much there is to do. Somewhere as small as Naphill, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Ask for a quote
Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
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What the job involves on each surface
Service penetrations
Wherever a service goes through a fire-resisting wall or floor, there’s a gap around it. We seal it with a product tested for that service and gap size.
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.
Looking after it afterwards
So the new joints stay in good condition:
- Allow for resealing whenever new services are run
- Get damaged fire seals looked at promptly
- Ask which product was used before you paint
- Take photos of fire stopping before ceilings or boxing go back
Tell other trades that the gaps have been sealed, and ask them to reseal anything they cut through. Later work is a common cause of damaged fire stopping.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Get it sealed and recorded.
Landlords, agents and businesses in Naphill
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Signs you need fire rated sealant in Naphill
Sealant applied too thin, without the backing its detail needs, or onto dust won’t perform as it was tested. Rushed fire stopping is common particularly when it was the last job before handover.
If you can see any of these, it’s time to have the joints looked at:
- Linear gaps at the head of walls
- Unsealed gaps around fire door frames
- Damaged fire sealant left by other trades
- Gaps flagged on a fire risk assessment
Managing a site like Naphill and Walters Ash School? Then fire-stopping around service openings should be restored whenever new services go in.
Questions to ask before booking
- Whether all the old sealant comes out first
- Is VAT in the price?
- Who does the work, and how experienced they are
- Whether the sealant suits the joint