Oxfordshire · England
Fire Rated Sealant in Aston Upthorpe
Professional fire rated sealant in and around Aston Upthorpe, with every bit of old sealant taken out first and a 12-month guarantee.
- Standard silicone or caulk in a fire-stopping gap
- Old fire sealant that has split or come away
- Open holes round services passing through fire walls
Why act early in Aston Upthorpe
Squirting in whichever sealant is nearest does not make a fire seal. Fire-rated products are tested in set gap sizes, depths and substrates, so both the product and the method matter. Around Aston Upthorpe, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
Why choose Mr Mastic in Aston Upthorpe
- We’re fully insured
- More than 20 years in sealant work
- 4.9 on Google from 180+ five-star reviews
- We leave the area clean and tidy
Take a look at how sealant jobs are priced and our reviews.
About our fire rated sealant in Aston Upthorpe
We don’t assess buildings or decide what fire stopping is needed; your assessor, designer or building control sets that out. What we do is apply the right product to that specification, properly and neatly. We are often asked to deal with gaps left after a refit or conversion and gaps flagged on a fire risk assessment, on door frames, service penetrations and plasterboard & masonry.
For holiday lets, converted business premises or a community building near Aston Upthorpe, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
All our work comes with a one-year guarantee.
- Location
- Aston Upthorpe (OX11)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Questions from Aston Upthorpe
Is Aston Upthorpe within the area you cover?
Yes. Aston Upthorpe is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Cholsey station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Is the work guaranteed?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Do you provide details of the products used?
Yes. We record the locations we’ve sealed and the products used.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Is intumescent sealant the same as fire-rated sealant?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent ones swell in heat, and they’re one of the options. We use whichever the specification and tested details call for.
How it works
We keep the work tidy and contained to the area we are working on. 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. In a small place like Aston Upthorpe, 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.
- Anything that isn’t fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Before we arrive
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
How to get a quote
If you are in Aston Upthorpe and need fire rated sealant, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Advice
What we’re called out for in Aston Upthorpe
A lot of fire stopping is out of sight: above ceilings, inside risers and behind panels. Out of view, damage sits unnoticed until someone inspects.
These are the problems we’re asked about most:
- Unsealed gaps where pipes and cables go through a wall
- Fire seals that have cracked with movement
- Gaps flagged on a fire risk assessment
- Linear gaps at the head of walls
If you look after a building such as South Moreton Primary School, fire-stopping around service openings should be restored whenever new services go in.
What to look for in a quote
- Whether all the old sealant comes out first
- Whether you can choose the colour
- What insurance they hold
- The length of the guarantee
What fire rated sealant looks like in Aston Upthorpe
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.
Rented homes near Cholsey station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Community buildings like Church of St Michael are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Aston Upthorpe is about 3 miles south-east of Didcot, in Oxfordshire. Whether you are in the middle of Aston Upthorpe or further out, fire rated sealant is available for homes and businesses alike. Aston Upthorpe is one of 443 places in Oxfordshire where we work. We also work in Oxford, about 12 miles from Aston Upthorpe.
Every address in OX11 is within our area for fire rated sealant. We cover properties on Lower Ham Yard, Alisons Lane and Moreton Road and the roads around them. We also cover the places around Aston Upthorpe: South Moreton (1 mile north), Cholsey (2 miles east), Moulsford (3 miles south-east), Winterbrook (3 miles east) and South Stoke (3 miles south-east). Larger places within reach include Oxford (12 miles north), Didcot (3 miles north-west), Abingdon-on-Thames (8 miles north-west), Thame (15 miles north-east), Wantage (10 miles west) and Henley-on-Thames (13 miles east).
Local landmarks in Aston Upthorpe
In Aston Upthorpe, that means homes and buildings near The Chequers Inn Public House. The closest station to Aston Upthorpe is Cholsey station, roughly 1.8 miles east of the centre. Other landmarks nearby include Brightwell Castle (3.1 miles north-east). Not far away are Churn Hill and Mowbray Fields.
What the job involves on each surface
Flats and HMOs
In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We seal the gaps your assessor has identified, flat by flat if needed.
Door frames
Behind most architraves is a gap between frame and wall. We seal any open gap to the product’s tested details before the trim goes back.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Landlords, agents and businesses in Aston Upthorpe
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Also near Aston Upthorpe
Also in Aston Upthorpe
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Allow for resealing whenever new services are run
- Take photos of fire stopping before ceilings or boxing go back
- Tell trades working in the building that fire seals must be put back
- Don’t paint over fire sealant until it has cured
Any fire seal that’s cut or drilled needs resealing to its tested detail. If you need new services through a sealed wall, plan the fire stopping as part of the job.
Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole and the job gets bigger.
