Oxfordshire · England
Checkendon Fire Rated Sealant
Fire rated sealant in Checkendon from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Ordinary sealant used where a fire-rated product was needed
- Unsealed gaps around fire door frames
- Gaps left after a refit or conversion
Can I do it myself?
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Fire rated sealant in Checkendon
Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over, gap by gap. Common call-outs are for sealant items on a fire risk assessment action list and linear gaps at the head of walls, on linear gaps, pipe & cable gaps and door frames.
In a village or hamlet like Checkendon, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.
Our work is backed for twelve months, in Checkendon and everywhere else we cover.

- Place
- Checkendon (RG8)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Masonry and concrete
Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first.
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We seal that gap with a fire-rated sealant suited to the frame and wall.
Why deal with it now?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the sealing itself is often a contained piece of work. Where a wall is exposed, as many are in small places like Checkendon, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or email us and we’ll talk you through it.
Why choose Mr Mastic in Checkendon
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
- Old sealant always removed completely
- We leave the area clean and tidy
See our cost guide and customer reviews.
Do you need fire rated sealant in Checkendon?
Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
People generally contact us when they notice one of these:
- Gaps where walls meet ceilings or slabs
- Open gaps behind door architraves
- Gaps around pipes and cables through fire-resisting walls
- Seals cut through by electricians, plumbers or data installers
If you let a flat or house near Goring & Streatley station, any gap left by new services in shared walls should be closed with a fire-rated product.
Questions to ask before booking
- Whether VAT is included
- What product goes in the joint
- What happens if the job turns out different
- What insurance they hold
The process
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes anything from a few hours to several days, depending on how many gaps there are, including the tidy-up. Somewhere as small as Checkendon, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Getting a quote
For a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear quote before any work starts.
Related advice
Checkendon questions
Can you help a landlord with a rental near Goring & Streatley station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Checkendon?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What’s the difference between intumescent and fire-rated sealant?
Intumescent means it swells when heated. It’s one type of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Can I add another job to the visit?
Yes. Just list everything you need and we will quote it together.
Fire rated sealant around Checkendon
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, 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.
Community buildings like St Peter and St Paul are part of the picture too: gaps around pipes and cables are worth checking after any building work there. Schools such as Checkendon Church of England (A) Primary School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.
Checkendon is about 6 miles north-west of Caversham, in Oxfordshire. For fire rated sealant in and around Checkendon, please ring 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Oxfordshire, Checkendon included. Our area takes in 443 places across Oxfordshire. You can also see our page for Reading, about 7 miles away.
Every address in RG8 is within our area for fire rated sealant, from the main roads to the quietest streets. Local streets include Uxmore Road, Whitehall Lane and Lovegrove's Lane. We also cover the places around Checkendon: Stoke Row (1 mile east), Hook End (1 mile south), Woodcote (2 miles south-west), Heath End (2 miles north) and Ipsden (2 miles north-west). Larger places within reach include Didcot (10 miles north-west), Abingdon-on-Thames (14 miles north-west), Thame (14 miles north), Henley-on-Thames (6 miles east), Benson (6 miles north-west) and Chinnor (12 miles north-east).
Local landmarks in Checkendon
Typical jobs here are in homes near Langtree School and The Black Horse pub, among other places. The closest station to Checkendon is Goring & Streatley station, roughly 4.4 miles south-west. Open spaces near Checkendon include Hartslock.
What affects the quote in Checkendon
We don’t publish a price list, because jobs vary so much. What we look at:
- Working hours on commercial sites
- How many areas need sealing
- Access and height
- Whether old sealant or filler has to be cut out
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- The rough size of the job
- The address or postcode of the job
- Whether it’s a home or a business
For fire rated sealant in Checkendon, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Ask which product was used before you paint
- Tell trades working in the building that fire seals must be put back
- Get damaged fire seals looked at promptly
- Include hidden areas like risers in routine checks
Tell other trades that the gaps have been sealed, and make sure anything they disturb is resealed with a suitable product. 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 so you can show it was dealt with.
