Hampshire · England
Fire Rated Sealant in Kentsboro
Our applicators work in Kentsboro on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Seals cut through by electricians, plumbers or data installers
- Gaps left after a refit or conversion
- Open gaps behind door architraves
What we’re called out for in Kentsboro
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.
People generally contact us when they notice something like this:
- Joints picked up in a fire-stopping survey
- Old fire sealant that has split or come away
- Gaps left after a refit or conversion
- Standard silicone or caulk in a fire-stopping gap
Rented homes near Grateley station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
What your quote should include
- Whether you can choose the colour
- Whether all the old sealant comes out first
- What preparation is included
- How long the guarantee is
How we handle fire rated sealant in Kentsboro
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. Those are the gaps we close, using a tested fire-rated product. If you have fire seals that have cracked with movement and gaps left after a refit or conversion, we can help, whatever the surface.
Work in a small place like Kentsboro is planned ahead, journey included, so it can be fitted around guests, clients or events where possible.
Big or small, you get the same 12-month guarantee.
- Place
- Kentsboro (SO20)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What fire rated sealant looks like in Kentsboro
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 are given, installing the product to its tested details.
In and around Kentsboro, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint.
Kentsboro is about 5 miles south-west of Andover, in Hampshire. If you need fire rated sealant in Kentsboro, please ring 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Hampshire. Our Hampshire coverage runs to 683 places, Kentsboro among them. You can also see our page for Southampton, roughly 18 miles from Kentsboro.
Every address in SO20 is covered for fire rated sealant. That includes homes and businesses on Mead Park Square, Upper Mead and Lower Mead and the roads around them. We also cover the places around Kentsboro: Over Wallop (2 miles south-west), Middle Wallop (2 miles south-west), Nether Wallop (2 miles south), Fox (2 miles north) and Red Rice (2 miles north-east). Within a short drive, we also cover Winchester (13 miles south-east), Andover (5 miles north-east), Chandler's Ford (14 miles south-east), Romsey (12 miles south), Hyde (12 miles south-east) and Tidworth (7 miles north-west).
What’s near Kentsboro
The nearest railway station is Grateley station, roughly 2.6 miles west. Well-known places in the area include Andover War Memorial Hospital (5 miles north-east). For a walk, there’s Quarley Hill and Mill Lake.
FAQs for Kentsboro
Is Kentsboro in your area for fire rated sealant?
Yes, Kentsboro is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Can you help a landlord with a rental near Grateley station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Do you work in flats, HMOs and commercial buildings?
Yes. We regularly work in flats, HMOs, schools and offices while they’re in use. Early starts or out-of-hours work can be arranged.
The process
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Somewhere like Kentsboro 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 gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products.
Preparing for the visit
- Let us know about parking restrictions
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
Ask for a quote
If you are in Kentsboro and need fire rated sealant, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before we start.
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What affects the quote in Kentsboro
For a quick quote, just ask. The main things that affect it are:
- Whether there’s mould to deal with
- How much there is to do
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
When you contact us, these details help:
- The type of property
- The problem you’ve noticed
- Any previous sealing or DIY work
- Roughly how big the job is
Want a quote for fire rated sealant? Please phone 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
How the job changes by surface
Plasterboard walls
Holes in plasterboard are often cut roughly for services. Gaps that are too big for sealant alone need a different detail.
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.
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Assessing a building’s fire safety
- Certifying a building or signing off its fire safety
- Construction that doesn’t provide fire resistance on its own
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before booking.
Surfaces we seal
- Door frames
- Service penetrations
- Linear gaps
- Flats & HMOs
- Plasterboard & masonry
- Pipe & cable gaps