Oxfordshire · England
Fire Rated Sealant in Cumnor
We cover Cumnor for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Open gaps behind door architraves
- Ordinary sealant used where a fire-rated product was needed
- Gaps where walls meet ceilings or slabs
How we quote for fire rated sealant
Every job gets its own quote. These are the things that affect it:
- Which sealant suits the joint
- Whether the work is at height
- Working hours on commercial sites
- The number of rooms or windows
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
What to tell us for a quote
When you contact us, it’s useful to know:
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- Photos by email, if that is easy
- Any previous sealing or DIY work
For a quote, call 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 work begins.
Fire rated sealant for homes and businesses in Cumnor
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through. We work on service penetrations, linear gaps and door frames, and the jobs we see most are gaps where walls meet ceilings or slabs and unsealed gaps around fire door frames.
For a small place like Cumnor, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.
Big or small, you get the same one-year guarantee in Cumnor and across Oxfordshire.
- Location
- Cumnor (OX2)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Cumnor
More services for Cumnor
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Check whether a sealant can be painted before decorating over it
- Keep pictures of seals that will be hidden
- Store the list of sealed gaps with your building paperwork
- Include hidden areas like risers in routine checks
Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. Later work is a common cause of damaged fire stopping.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the list grows.
Different surfaces, different methods
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.
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. The gap is cleaned of dust first so the sealant bonds.
Fire rated sealant around Cumnor
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.
For buildings such as Church of St Michael, older buildings that have had new heating or wiring often have service gaps worth checking. Rented homes near Oxford station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Schools such as Cumnor Church of England School (Voluntary Controlled) are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.
Cumnor is about 4 miles north-west of Abingdon-on-Thames, in Oxfordshire. Homes, rented property, offices and hotels in Cumnor can book us for fire rated sealant. Every job comes with our 12-month guarantee. We cover 443 towns and villages across Oxfordshire.
Postcode districts we cover here for fire rated sealant: OX2. You’ll find streets such as High Street, The Park and The Winnyards. Other places close to Cumnor include Chawley (1 mile north-east), Filchampstead (1 mile north-west), Henwood (1 mile south-east), Dean Court (2 miles north-east) and Botley (2 miles north-east). Within a short drive, we also cover Oxford (5 miles east), Didcot (9 miles south-east), Bicester (14 miles north-east), Abingdon-on-Thames (4 miles south-east), Witney (8 miles north-west) and Carterton (11 miles west).
Around Cumnor
Locally, jobs take us to homes and businesses close to The Vine Inn and Matthew Arnold School. Cumnor’s nearest station is Oxford station, about 3.1 miles north-east. Other landmarks nearby include Westgate Shopping Centre (3.3 miles north-east) and Radcliffe Infirmary (3.6 miles north-east). Green spaces nearby include Lashford Lane Fen and Cumnor Hill.
What we can’t put right
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- Fire risk assessments, which need a qualified assessor
- Large holes that need a different fire-stopping system
- Problems with the door itself rather than the gap around the frame
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.
Joints and surfaces we work on
- Pipe & cable gaps
- Service penetrations
- Flats & HMOs
- Door frames
- Plasterboard & masonry
- Linear gaps
Cumnor questions
Do you cover Cumnor for fire rated sealant?
Yes, Cumnor is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near Oxford station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do you do fire sealant around door frames?
Yes. Gaps behind architraves are a common job for us. The door and its fittings are a separate job for a door specialist.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints.
How long does fire rated sealant take?
It depends on the size of the job, but most jobs take a few hours for a handful of gaps, and longer for a whole building. We will give you a better idea when we quote.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new sealant bonds properly.
Is there a guarantee?
Yes. Every job comes with a one-year guarantee.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, 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.
Why it’s worth doing now in Cumnor
Fire-rated sealants are less forgiving than ordinary ones. Depth, backing and surface preparation all affect how a seal performs, so we follow the maker’s details on every gap. Where a wall is exposed, as many are in small places like Cumnor, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
What you get with us
- Homes, businesses and hotels
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- We leave the area clean and tidy
Take a look at what affects the cost and our reviews.
How the visit works
There isn’t much for you to do on the day. Show us the job and we will take it from there. The work itself takes anything from a few hours to several days, depending on how many gaps there are. Somewhere as small as Cumnor, access is often the only tricky part. 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.
- Where the tested detail needs backing or fill, we fit it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- We record the locations and products used for your records.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any tricky access
- On commercial sites, let us know about site rules
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.