Buckinghamshire · England
Fire-rated sealant in Finmere, Buckinghamshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Finmere, with a one-year guarantee on every job. Call for a quick quote.
- Unsealed gaps around fire door frames
- Gaps flagged on a fire risk assessment
- Ordinary sealant used where a fire-rated product was needed
Fire rated sealant in Finmere
Filling a fire-stopping gap with standard silicone or caulk does not make it fire-rated. Anything unsuitable comes out first and reseal with a fire-rated product tested for that kind of gap. If you have gaps filled with a product that isn’t fire-rated and gaps left after a refit or conversion, we can put it right, on plasterboard & masonry, pipe & cable gaps and linear gaps alike.
For a small place like Finmere, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.
You get a one-year guarantee, the same in Finmere as everywhere else we work.
- Where
- Finmere (MK18)
- Wider area
- Buckinghamshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Finmere
Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, and we work to the product details every time. Older cottages and farmhouses around Finmere can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Finmere
- Arbo and Everbuild products
- We are fully insured
- Approved under the ARBOMaster scheme
- Domestic, commercial and hotel work
Take a look at our cost guide and customer reviews.
Nearby places to Finmere
More services for Finmere
Workplaces and buildings in Finmere
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For buildings such as Church of St Michael, gaps around pipes and cables are worth checking after any building work there.
Finmere is about 4 miles west of Buckingham, in Buckinghamshire. Every kind of property in Finmere can book us for fire rated sealant. Every job comes with our one-year guarantee. Our area takes in 263 places across Buckinghamshire. You can also see our page for Oxford, about 18 miles away.
Here we cover the MK18 postcode area for fire rated sealant. You’ll find streets such as Chinalls Close, Stable Close and Fulwell Road. We also cover the places around Finmere: Tingewick (1 mile east), Preston Bissett (2 miles south-east), Gawcott (3 miles east), Hillesden (4 miles south-east) and Twyford (4 miles south-east). Larger places within reach include Buckingham (4 miles east), Haydon Hill (15 miles south-east), Winslow (9 miles east), Steeple Claydon (5 miles south-east), Long Crendon (15 miles south) and Whitchurch (13 miles south-east).
Around Finmere
Other landmarks nearby include The Menagerie (3.6 miles north-east) and Buckingham Community Hospital (3.9 miles east). Green spaces nearby include Buckingham Sand Pit.
How the job changes by surface
Masonry and concrete
Core-drilled and broken-out holes in concrete are often irregular. We check the gap size around the service to make sure it suits the product.
Linear gaps
Gaps along the top of partitions are easy to miss above a ceiling. We work along the whole run leaving no stretch unsealed.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Plan fire stopping into any work that goes through walls or floors
- Get damaged fire seals looked at promptly
- Photograph sealed gaps before they’re covered up
- Store the list of sealed gaps with your building paperwork
Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we 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.
What happens on the day
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours for a handful of gaps, and longer for a whole building, and we tell you how long to leave it before we go. For a village or hamlet like Finmere, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- We record what was done and flag anything that needs a different system.
Before we arrive
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
Get a quote
Need a quote? Please phone 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear quote before we start.
Read more
Landlord and commercial work in Finmere
Letting agents and landlords in Finmere can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
For anyone letting property in or around Finmere, several properties can be quoted together. Just tell us the addresses and what each one needs.
Common problems we fix in Finmere
Gaps around door frames are easily missed. The architrave hides the gap between frame and wall, so it can be left open when a door is replaced.
Keep an eye out for any of the following:
- Seals cut through by electricians, plumbers or data installers
- Gaps flagged on a fire risk assessment
- Linear gaps at the head of walls
- Old fire sealant that has split or come away
For site and facilities teams at buildings such as Finmere Church of England Primary School, service openings in fire-resisting walls need checking after any refurbishment.
What to look for in a quote
- What preparation is included
- Which colour the sealant will be
- What product goes in the joint
- Who turns up on the day
FAQs for Finmere
Is fire rated sealant in Finmere guaranteed?
All our work, in Finmere and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do fire rated sealant in Finmere?
Yes. Our work covers London and the South East, and Finmere is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
What do you need from me for a quote?
Tell us what needs doing and where. We will ask anything else we need to know.
What sealant 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. Brands we use include Arbo and Everbuild.
Are you fully insured?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
Do you seal gaps around fire door frames?
Yes, where the gap suits a sealant detail. We seal the frame-to-wall gap, not the door itself, and we will mention anything we notice about the door.
How much does fire rated sealant cost in Finmere?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and let us know what needs doing and where.
How long does fire rated sealant take?
That depends on the amount of work, but most jobs take anything from a few hours to several days, depending on how many gaps there are. We will tell you when we quote.
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.