Oxfordshire · England
Fire-rated sealant in Long Wittenham, Oxfordshire
Fire-stopping gaps in Long Wittenham need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Gaps flagged on a fire risk assessment
- Open holes round services passing through fire walls
- New service routes left unsealed after building work
About our fire rated sealant in Long Wittenham
Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That’s the part we focus on, gap by gap. Typical jobs include ordinary sealant used where a fire-rated product was needed and gaps around pipes and cables through fire-resisting walls, on pipe & cable gaps, flats & HMOs and linear gaps.
For holiday lets, converted business premises or a community building near Long Wittenham, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
You get a 12-month guarantee, the same in Long Wittenham as everywhere else we work.
- Location
- Long Wittenham (OX14)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Nearby places to Long Wittenham
What else we do in Long Wittenham
Common questions in Long Wittenham
Can you do fire rated sealant in Long Wittenham?
Yes. Our work covers London and the South East, and Long Wittenham is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Appleford station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
What does fire rated sealant cost?
Size, access and the old material all affect the cost. Ask us for a quote.
Is there a guarantee?
Yes. All our work carries a one-year guarantee.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Is standard sealant good enough for a fire gap?
No. It looks sealed but will not perform as fire stopping. A tested fire-rated product is needed, or ask us to do it.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do you offer different sealant colours?
In most cases you can choose. We will explain which colours are available and agree one before work begins.
What fire rated sealant looks like in Long Wittenham
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.
Letting a property close to Appleford station? Then any gap left by new services in shared walls should be closed with a fire-rated product. For buildings such as Church of St Mary, older buildings that have had new heating or wiring often have service gaps worth checking.
Long Wittenham is about 3 miles north-east of Didcot, in Oxfordshire. Anywhere in OX14, our applicators can take on fire rated sealant. Our area takes in 443 places across Oxfordshire. You can also see our page for Oxford, about 8 miles away.
Postcode districts we cover here for fire rated sealant: OX14. Fire rated sealant is available to properties on High Street, Didcot Road and Wessex Way. Neighbouring places we cover for fire rated sealant include Clifton Hampden (1 mile north), Appleford-on-Thames (1 mile west), Culham (2 miles north-west), Didcot (3 miles south-west) and Sutton Courtenay (3 miles west). Larger places within reach include Oxford (8 miles north), Abingdon-on-Thames (4 miles north-west), Thame (13 miles north-east), Wantage (10 miles west), Henley-on-Thames (15 miles south-east) and Grove (9 miles west).
What’s near Long Wittenham
Locally, jobs take us to homes and businesses close to The Plough Public House and the streets around them. Long Wittenham’s nearest station is Appleford station, roughly 1.3 miles west of the centre. Nearby you’ll also find Brightwell Castle (2.6 miles south-east) and Pendon Museum (under half a mile west). Green spaces nearby include Wittenham Clumps and Mowbray Fields.
Signs you need fire rated sealant in Long Wittenham
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Common reasons people contact us are:
- Gaps where walls meet ceilings or slabs
- Cracked or shrunken fire-rated sealant
- Damaged fire sealant left by other trades
- Door frames with gaps between frame and wall
For site and facilities teams at buildings such as Long Wittenham (Church of England) Primary School, fire-stopping around service openings should be restored whenever new services go in.
Before booking anyone
- Which colour the sealant will be
- What insurance they hold
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
What the job involves on each surface
Flats and HMOs
Conversions generally 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.
Masonry and concrete
Masonry is dusty and porous, so preparation matters. We brush and vacuum the gap and use backing where the detail needs it before the sealant goes in.
What we can’t put right
Before booking, it’s worth knowing the limits:
- Big openings where sealant alone isn’t the tested solution
- Fire doors that need new seals, closers or hardware
- Fire risk assessments, which need a qualified assessor
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Joints and surfaces we work on
- Pipe & cable gaps
- Linear gaps
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
- Door frames
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It usually takes a few hours for a handful of gaps, and longer for a whole building. In a small place like Long Wittenham, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed and the faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your records.
Before we arrive
- Keep children and pets away from the work area
- Clear the area around the work
- Mention any tricky access
Get a quote
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Leave it or put it right?
Sealant isn’t the fix for every opening. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. We’ll say so if a gap needs something other than sealant. Older cottages and farmhouses around Long Wittenham can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in Long Wittenham
- Neat joints and a tidy finish
- Sanitary silicone with an anti-fungal additive in wet areas
- We never seal over old sealant
- Arbo and Everbuild products
Take a look at what affects the cost or customer reviews.
DIY sealant or a professional job?
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.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.