Oxfordshire · England

South Moreton Fire Rated Sealant

Intumescent and fire-rated sealant around gaps, frames and service penetrations for South Moreton, backed by a one-year guarantee. Call for a quick quote.

  • Open holes round services passing through fire walls
  • Holes left by a change of layout
  • Joints picked up in a fire-stopping survey

Fire rated sealant for South Moreton homes and businesses

What we can’t put right

A few problems are outside what sealant work can do:

  • A wall that is not a fire-resisting element to begin with
  • Fire doors that need new seals, closers or hardware
  • Assessing a building’s fire safety

If in doubt, call 0345 464 0079 or send us an email and we will say what we think.

Joints and surfaces we work on

  • Plasterboard & masonry
  • Door frames
  • Flats & HMOs
  • Pipe & cable gaps
  • Service penetrations
  • Linear gaps

How we handle fire rated sealant in South Moreton

Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. A new cable run or a replaced pipe can leave an open hole behind. We seal them with a product tested for that kind of gap. Typical jobs include cracked or shrunken fire-rated sealant and linear gaps at the head of walls, on plasterboard & masonry, pipe & cable gaps and service penetrations.

For a small place like South Moreton, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.

A 12-month guarantee comes with the work, just as it does everywhere we cover.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
South Moreton (OX11)
Wider area
Oxfordshire
Cover
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

A DIY attempt doesn’t rule out a professional job. We cut it out and start again.

The process

Our applicators work methodically: 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. Somewhere like South Moreton needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. Each gap is measured and its substrate and service noted.
  3. Unsuitable material such as ordinary foam or silicone is cut out.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. We hand over a list of locations and products for your files.

Getting ready for the visit

  • Where the joints are inside, avoid wetting them before we arrive
  • Tell us about access, such as stairs, a lift or high-level joints
  • Mention any parking rules near the property

Get a quote

We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or drop us an email.

Get a quick quote

Advice

Different surfaces, different methods

Linear gaps

Long, narrow gaps appear where walls meet slabs and ceilings. They’re sealed with a fire-rated sealant over backing where the detail calls for it.

Service penetrations

A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. Each one is sealed to the product’s tested detail and we flag any that need another system.

Quotes for fire rated sealant in South Moreton

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • The type of sealant required
  • How easy the joints are to reach
  • Whether there’s mould to deal with
  • How much old sealant there is and how hard it is to remove

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

Helping us quote

Photos help, but a description is a good start. Please mention:

  • Pictures of the joints, sent by email
  • Whether it’s a home or a business
  • How we’d reach the joints
  • Where the property is

Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work.

Fire rated sealant around South Moreton

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, 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 John the Baptist are part of the picture too: gaps around pipes and cables are worth checking after any building work there. For landlords with property near Cholsey station, any gap left by new services in shared walls should be closed with a fire-rated product. For site and facilities teams at buildings such as South Moreton Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.

South Moreton is about 3 miles south-east of Didcot, in Oxfordshire. Anywhere in OX11, we can carry out fire rated sealant at your property. South Moreton is one of 443 towns and villages in Oxfordshire we cover for fire rated sealant. There’s also a page for Oxford, roughly 11 miles from South Moreton.

Work in OX11 is quoted and booked the same way as anywhere else. That includes homes and businesses on High Street, Crown Lane and Mill Lane. Other places close to South Moreton include Aston Upthorpe (1 mile south), Cholsey (2 miles south-east), Winterbrook (3 miles east), Mongewell (3 miles east) and Moulsford (3 miles south-east). Larger places within reach include Oxford (11 miles north), Didcot (3 miles north-west), Abingdon-on-Thames (7 miles north-west), Thame (14 miles north-east), Wantage (10 miles west) and Henley-on-Thames (13 miles east).

Landmarks near South Moreton

Locally, jobs take us to homes and businesses close to St Birinus School and The Crown pub, among other places. For rail, the closest station is Cholsey station, roughly 2 miles south-east. Other landmarks nearby include Brightwell Castle (2 miles north-east) and Pendon Museum (3.5 miles north). Not far away are Mowbray Fields and Wittenham Clumps.

Map of South Moreton © OpenStreetMap contributors

Leave it or put it right?

A quick fill with any sealant to hand is not fire stopping. Fire-rated products are tested in set gap sizes, depths and substrates, so both the product and the method matter. Around South Moreton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.

What you get with us

  • We leave the area clean and tidy
  • 20+ years of sealant experience
  • Anti-fungal silicone where joints get wet
  • We never seal over old sealant

Take a look at how sealant jobs are priced and customer reviews.

Common questions in South Moreton

Do you cover smaller places like South Moreton?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you cover South Moreton for fire rated sealant?

Yes. We work across London and the South East, and South Moreton is part of that. Just call 0345 464 0079 or email us with a few details of the job.

Which products do you use?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Is it messy?

No. We work neatly, protect the area around the joints and tidy up afterwards.

Can you seal over the old sealant?

No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Do you provide details of the products used?

Yes. We record the locations we have sealed and the products used for your files.

I’m a tenant. Can you help?

Of course. Check with your landlord; we can send the quote to them too.

Do you take out the old sealant first?

Yes. All of the old material is cut out and the joint cleaned.

How to look after the new joints

How long the joints last depends on use and care. We suggest:

  • Don’t fill fire-stopping gaps with ordinary foam or silicone
  • Include hidden areas like risers in routine checks
  • Don’t paint over fire sealant until it has cured
  • Ask every contractor to reseal any fire stopping they disturb

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.

When you plan work that goes through walls or ceilings, plan the fire stopping too. Doing it at the time avoids leaving gaps behind.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job