Oxfordshire · England
Cothill Fire Rated Sealant
Fire-stopping gaps in Cothill need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Holes left by a change of layout
- Gaps where walls meet ceilings or slabs
- Cracked or shrunken fire-rated sealant
Your questions about fire rated sealant in Cothill
Will you come out to Cothill?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Radley station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
How long does the job take?
A typical job takes anything from a few hours to several days, depending on how many gaps there are, including the preparation. Your quote will say how long we expect yours to take.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available and agree one before we start.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
What’s the difference between intumescent and fire-rated sealant?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent ones swell in heat, and they’re one option among several. We use whichever the specification and tested details call for.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Fire rated sealant for homes and businesses in Cothill
Where services or frames pass through a fire-resisting wall or floor, the gap around them needs a fire-rated seal. We apply intumescent and fire-rated sealants to the manufacturer’s tested details for each gap, with a record of the products and locations if you need one. If you are dealing with unsealed gaps where pipes and cables go through a wall and standard silicone or caulk in a fire-stopping gap, we can help, whatever the surface.
If you have holiday lets, a converted barn used for business or a community building near Cothill, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
Big or small, it’s backed by our one-year guarantee.

- Where
- Cothill (OX13)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of fire rated sealant
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How easy the joints are to reach
- The product the joint needs
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Asking for a quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- Photos by email, if that’s easy
- If someone has resealed it before
- Access, such as stairs, a lift or height
Need a quote? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
What happens if it’s left?
Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. Where a wall is exposed, as many are in small places like Cothill, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why choose Mr Mastic in Cothill
- We never seal over old sealant
- More than 20 years in sealant work
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
See what affects the cost and customer reviews.
Fire rated sealant in Cothill: local notes
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’re given, installing the product to its tested details.
Schools such as Dry Sandford Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment. If you let a flat or house near Radley station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Community buildings like Church of St Helen are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Cothill is about 2 miles north-west of Abingdon-on-Thames, in Oxfordshire. We provide fire rated sealant to homeowners, landlords and businesses in Cothill and the surrounding area, as part of our work across Oxfordshire. Across Oxfordshire, we cover 443 places, Cothill among them. There’s also a page for Oxford, about 6 miles away.
Work in OX13 works the same way as everywhere else we cover. Nearby, we also carry out fire rated sealant in Dry Sandford (1 mile north-east), Shippon (1 mile south-east), Frilford Heath (1 mile south-west), Tubney (2 miles west) and Marcham (2 miles south). Within a short drive, we also cover Oxford (6 miles north-east), Didcot (7 miles south-east), Witney (10 miles north-west), Carterton (12 miles north-west), Wantage (8 miles south-west) and Grove (7 miles south-west).
Local landmarks in Cothill
Around Cothill, our work takes us to homes and buildings near Merry Miller pub and Larkmead School, among other places. The nearest railway station is Radley station, about 3.9 miles east. Nearby you will also find Abingdon Community Hospital (2 miles south-east) and FitzHarris Castle (2.4 miles south-east). The countryside around Cothill includes Cumnor Hill and Dry Sandford Pit.
Should I try it myself first?
Not every job suits DIY: 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 lifts and traps water and mould underneath. Everything old must be removed first.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Take pictures of fire stopping before ceilings or boxing go back
- Never patch a fire seal with standard sealant
- Ask which product was used before you paint
- Tell trades working in the building that fire seals must be put back
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and have them put right.
Open gaps don’t only matter in a fire: they also let noise, draughts and sometimes pests through. Dealing with them early helps with all of these.
What else we do in Cothill
Landlord and commercial work in Cothill
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to several days, depending on how many gaps there are. In a small place like Cothill, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
Ask for a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.
Advice
What the job involves on each surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before applying the sealant.
Linear gaps
Some linear gaps have to cope with movement as well as fire. We choose a product and depth that suit the gap and the movement, following the tested detail.
