Oxfordshire · England
Fire-rated sealant in Cowley, Oxfordshire
Fire rated sealant in Cowley from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Linear gaps at the head of walls
- Gaps flagged on a fire risk assessment
- Open holes round services passing through fire walls
What happens if it’s left?
Waiting for the next refit can leave a gap open for years. Sealing the gap now is a contained job on its own that doesn’t depend on other work. Around Cowley, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and give you a clear price before any work starts.
Why choose Mr Mastic in Cowley
- ARBOMaster approved applicator
- We are fully insured
- Rated 4.9 stars on Google
- Anti-fungal silicone where joints get wet
See our cost guide and customer reviews.
Fire rated sealant in Cowley
A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. Measuring the gap and checking what it’s made of comes first, then the sealant goes in to the depth the product’s details set. Common call-outs are for open joints along the top of partitions and ordinary sealant used where a fire-rated product was needed, across linear gaps, service penetrations and flats & HMOs.
Around a place like Cowley, halls, schools and small businesses all have washrooms and kitchens used by many people. Sealant and fire-rated joints there matter as much as in any larger building.
Our work is backed for twelve months, in Cowley and everywhere else we cover.
- Place
- Cowley (OX4, OX3)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Cowley
Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
These are the problems we are asked about most:
- Holes left by a change of layout
- Open gaps behind door architraves
- Old fire sealant that has split or come away
- Gaps where walls meet ceilings or slabs
Letting a property close to Oxford station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Comparing quotes
- What guarantee comes with the work
- Is VAT in the price?
- What the cure time is
- What insurance they hold
Places near Cowley
Other services in Cowley
How we quote for fire rated sealant
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much there is to do
- Whether there’s mould to deal with
- The product the joint needs
- The old material and how stubborn it is
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
Asking for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- Photos by email, if that’s easy
- If someone has resealed it before
- Roughly how big the job is
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Cowley: your questions answered
Do you work for landlords with property near Oxford station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you work for hotels and guest houses in Cowley?
Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Will you assess my building’s fire safety?
No. We work from the specification you give us and install to the manufacturer’s details.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How much does fire rated sealant cost in Cowley?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email and let us know what needs doing and where.
Do you have insurance?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Commercial buildings in Cowley
Cowley has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Community buildings like Church of St Luke are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking. If you look after a building such as Our Lady's Roman Catholic Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.
Cowley is about 1 mile south-east of Oxford, in Oxfordshire. For fire rated sealant in and around Cowley, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We are based in Crawley and cover Oxfordshire, Cowley included. 443 places in Oxfordshire are on our list, from the larger towns to small villages.
Here we cover the OX4 and OX3 postcode area for fire rated sealant. If you need fire rated sealant at a property on Barns Road, Marsh Road and Clive Road or anywhere close by, our applicators can take on the job. Other places close to Cowley include Iffley (1 mile west), Blackbird Leys (1 mile south), Donnington (1 mile north-west), Littlemore (1 mile south-west) and Oxford (1 mile north-west). Within a short drive, we also cover Didcot (9 miles south), Bicester (12 miles north), Abingdon-on-Thames (5 miles south-west), Witney (12 miles west), Thame (10 miles east) and Wantage (13 miles south-west).
Near you in Cowley
Typical jobs here are in homes near The Nelson pub, South Park and Emmanuel Christian School and the streets around them. Nearby too are Greyfriars Catholic School (0.6 miles north-west) and Alexander Library of Ornithology (1.9 miles north-west). Cowley’s nearest station is Oxford station, about 2.7 miles north-west. Well-known places in the area include Templars Square (within half a mile south-west) and British Tattoo History Museum (0.7 miles north-west). Open spaces near Cowley include Headington Hill and CS Lewis Nature Reserve.
DIY versus a professional finish
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How the job changes by surface
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing.
Flats and HMOs
Conversions normally leave a mix of old and new service holes. We seal the ones on your specification with a tested product and record where they are.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes from a few hours to a few days, depending on the number of gaps and the access, and the area is left clean. In a smaller place like Cowley, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Anything that is not 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.
- Locations and products are noted so you have them on file.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Plan for the work area to be out of bounds to pets and children
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or email us.
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Honest limits
In fairness, there are a few things sealant will not fix:
- Large holes that need a different fire-stopping system
- Assessing a building’s fire safety
- Construction that does not provide fire resistance on its own
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Pipe & cable gaps
- Linear gaps
- Plasterboard & masonry
- Service penetrations
- Door frames
- Flats & HMOs