Buckinghamshire · England
Fire Rated Sealant in Radnage
Fire rated sealant for Radnage, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps around pipes and cables through fire-resisting walls
- Gaps left after a refit or conversion
- Unsealed gaps around fire door frames
About our fire rated sealant in Radnage
A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That is the part we focus on, one gap at a time. We are often asked to deal with joints picked up in a fire-stopping survey and fire seals that have cracked with movement, on flats & HMOs, service penetrations and pipe & cable gaps.
For a small place like Radnage, the journey and timings are agreed in advance, so it can be fitted around guests, clients or events where possible.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Radnage (HP14)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. It will not solve:
- A wall that is not a fire-resisting element to begin with
- Assessing a building’s fire safety
- Problems with the door itself rather than the gap around the frame
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Flats & HMOs
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Service penetrations
- Linear gaps
More services for Radnage
Questions from Radnage
Do you cover Radnage for fire rated sealant?
Yes. Our work covers London and the South East, and Radnage is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
Do you work for landlords with property near Saunderton station?
Yes. We work for letting agents and landlords as well as householders. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Are you insured?
Yes. We are fully insured.
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. Tell us how the building is used and we’ll plan around it.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
What fire rating will the seal have?
That is not something we state or certify. Your specification sets the requirement, and we fit a product whose tested details meet it with a record of each location.
Will you assess my building’s fire safety?
No. That is for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Workplaces and buildings in Radnage
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.
Community buildings like Church of St Mary are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. Letting a property close to Saunderton station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
Radnage is about 6 miles north-west of High Wycombe, in Buckinghamshire. For fire rated sealant in and around Radnage, please ring 0345 464 0079 or email us for a quick quote. We cover Buckinghamshire from our Crawley base, Radnage included. Radnage is one of 263 places in Buckinghamshire we cover for fire rated sealant. Reading is on our list too, around 16 miles away.
Work in HP14 works the same way as everywhere else we cover. Local streets include Bottom Road, Bower's Lane and Bennett End Road, all of which we cover. We also cover the places around Radnage: Bennett End (1 mile west), Bledlow Ridge (1 mile north-east), The City (1 mile south), Rout's Green (1 mile north) and Waterend (1 mile south-west). Further out, we also cover Aylesbury (10 miles north), High Wycombe (6 miles south-east), Chesham (11 miles east), Marlow (8 miles south-east), Amersham (11 miles east) and Beaconsfield (10 miles south-east).
Around Radnage
Around Radnage, our work takes us to homes and buildings near The Three Horseshoes Inn. The nearest railway station is Saunderton station, roughly 1.6 miles east of the centre. Nearby you’ll also find Wycombe Hospital (5.5 miles south-east). Green spaces nearby include Yoesden and Bald Hill.
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Include hidden areas like risers in routine checks
- Store the list of sealed gaps with your building paperwork
- Get damaged fire seals looked at promptly
- Keep general-purpose foam and caulk away from fire-stopping gaps
Look at the sealed gaps as part of your routine walk-rounds. Look for cracks, gaps or sealant that has been cut or pulled out and get them seen to.
Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Sealing them early helps on every front.
Why it’s worth doing now in Radnage
Fire-rated sealants need more care than everyday sealant. How it’s installed changes how it performs, so we follow the maker’s details on every gap. Where a wall is exposed, as many are in small places like Radnage, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why choose Mr Mastic in Radnage
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
Read how sealant jobs are priced and customer reviews.
The process
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on how many gaps there are for a typical job. Somewhere like Radnage needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products.
Preparing for the visit
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Ask for a quote
For fire rated sealant in Radnage, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Related advice
Common problems we fix in Radnage
In some buildings the gap was filled with the wrong thing in the first place: general-purpose foam, everyday silicone or caulk in a place that needed a tested fire seal. It looks sealed, but it is not fire-rated.
Most people get in touch after spotting one of these:
- Gaps filled with a product that is not fire-rated
- Damaged fire sealant left by other trades
- Gaps flagged on a fire risk assessment
- Gaps around pipes and cables through fire-resisting walls
Schools such as Radnage Church of England Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
Comparing quotes
- How long to leave it before use
- How much experience the applicator has
- What preparation is included
- Is VAT in the price?
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
How the job changes by surface
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Where a hole is bigger than the sealant’s tested range, it needs another approach and we will flag it.
Masonry and concrete
Masonry is dusty and porous, so preparation matters. We brush and vacuum the gap and use backing where the detail needs it before the sealant goes in.