Oxfordshire · England
Fire Rated Sealant in Oxford
Fire rated sealant across Oxford and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Holes left by a change of layout
- Open holes round services passing through fire walls
- Cracked or shrunken fire-rated sealant
About our fire rated sealant in Oxford
Door frame gaps, linear joints and holes around services all have their own details. 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. We are often asked to deal with standard silicone or caulk in a fire-stopping gap and linear gaps at the head of walls, across door frames, service penetrations and pipe & cable gaps.
Oxford has offices, shops, places to stay and schools as well as homes, all with washrooms, kitchens and service openings that need the right sealant. We cover both day-to-day sealant and fire-rated sealant, installed to the manufacturer’s tested details.
A one-year guarantee comes as standard.
- Location
- Oxford (OX4, OX3, OX2, OX1)
- Region
- Oxfordshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Commercial buildings in Oxford
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 work to the specification you are given, installing the product to its tested details. There are hotels and other places to stay in and around Oxford. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
For buildings such as St Clement's Church, older buildings that have had new heating or wiring often have service gaps worth checking. Managing a site like East Oxford Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
Oxford is in Oxfordshire. We provide fire rated sealant to homes and businesses in Oxford and the surrounding area. 443 places in Oxfordshire are on our list, from the larger towns to small villages.
All of OX4, OX3, OX2 and OX1 is within our area for fire rated sealant, from the main roads to the quietest streets. Whether your property is on High Street, New High Street and Radcliffe Square or a nearby road, our applicators can take on the job. With the A34 and A40 close by, Oxford is easy for our applicators to reach. Neighbouring places we cover for fire rated sealant include St Clement's (1 mile west), Headington Hill (1 mile north-east), New Marston (1 mile north), Donnington (1 mile south) and St. Ebbes (1 mile west). Larger places within reach include Didcot (10 miles south), Bicester (11 miles north), Abingdon-on-Thames (6 miles south-west), Witney (11 miles west), Thame (11 miles east) and Wantage (14 miles south-west). Oxford is one of the larger places we cover in Oxfordshire.
What’s near Oxford
Around Oxford, our work takes us to homes and buildings near The Star pub, Alexander Library of Ornithology and Headington Rye Oxford. You’ll also find Cheney School (less than half a mile east) and South Park (within half a mile north-east). Oxford’s nearest station is Oxford station, about 1.6 miles west of the centre. Well-known places in the area include Warneford Hospital (within half a mile east) and Rumble Museum (under half a mile east). Not far away are CS Lewis Nature Reserve and Headington Hill.
Leave it or put it right?
Sealant is not the fix for every opening. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We’ll say so if a gap needs something other than sealant. For landlords in Oxford, failed sealant soon turns into tenant complaints about mould, damp or draughts. It’s simpler to sort between tenants than in the middle of a let.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Oxford
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
- We never seal over old sealant
- Anti-fungal silicone where joints get wet
Read our cost guide or customer reviews.
What affects the quote in Oxford
The price is agreed before any work begins. It’s based on:
- The number and length of the joints
- The number of rooms or windows
- Any working-time requirements on site
- How easy the joints are to reach
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Whether it’s a home or a business
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Common questions in Oxford
Do you cover Oxford for fire rated sealant?
Yes, Oxford is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Do you take on hotel work around Oxford?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Will we have a record of what was sealed?
Yes. You get a list of where we worked and what we used for your files.
Is there a guarantee?
Yes. Every job comes with our one-year guarantee.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do you carry out fire risk assessments?
No. That’s for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can I use normal mastic around a pipe through a fire wall?
No. Ordinary silicone, caulk or foam isn’t tested as fire stopping. If it’s been used, we remove it and use the right product.
When to call us in Oxford
Sometimes the wrong product was used from the start: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It looks sealed, but it isn’t fire-rated.
Signs it’s time to call us include:
- Sealant items on a fire risk assessment action list
- Open holes round services passing through fire walls
- Gaps filled with a product that isn’t fire-rated
- Open joints along the top of partitions
If you let a flat or house near Oxford station, any gap left by new services in shared walls should be closed with a fire-rated product.
What to look for in a quote
- How the surfaces are prepared before sealing
- Whether VAT is included
- What guarantee comes with the work
- Is the old sealant removed completely?
Aftercare tips
A little care helps the new joints last. We recommend:
- Photograph sealed gaps before they’re covered up
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Get damaged fire seals looked at promptly
- Ask every contractor to reseal any fire stopping they disturb
Don’t add foam, filler or ordinary sealant over a fire seal. If it needs repair, use the same type of product. We can tell you which product we used.
Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.
When it is not the sealant
We won’t take on work that won’t last, so these are the limits:
- Openings too large for sealant, which need batts, boards or another system
- A wall that is not a fire-resisting element to begin with
- Assessing a building’s fire safety
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Door frames
- Linear gaps
- Plasterboard & masonry
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs
What happens on the day
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes from a few hours to a few days, depending on the number of gaps and the access. In central Oxford, parking can be tight, so tell us about driveways, permits or nearby car parks. Let us know about stairs, lifts or shared entrances too.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- 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.
- Locations and products are noted so you have them on file.
Before we arrive
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
How to get a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.