West Berkshire · England

Fire-rated sealant in Donnington, West Berkshire

Problem with your fire-stopping gaps in Donnington? We remove the old material, prepare the joints and seal them properly.

  • Unsealed gaps where pipes and cables go through a wall
  • New service routes left unsealed after building work
  • Sealant items on a fire risk assessment action list

Fire rated sealant near Donnington

When to call us in Donnington

Sometimes the wrong product was used from the start: general-purpose foam, everyday silicone or caulk where a fire-rated seal was needed. It looks sealed, but it is not fire-rated.

Common reasons people contact us include:

  • Unsealed gaps around fire door frames
  • New service routes left unsealed after building work
  • Damaged fire sealant left by other trades
  • Linear gaps at the head of walls

Managing a site like Shaw-cum-Donnington C.E. Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.

What to look for in a quote

  • Which sealant they’ll use, and why
  • How much experience the applicator has
  • How the surfaces are prepared before sealing
  • How long to leave it before use

10 questions to ask before you book

Fire rated sealant in Donnington, done properly

Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it, so we follow the tested detail for each one. Typical jobs include new service routes left unsealed after building work and open joints along the top of partitions, on pipe & cable gaps, linear gaps and flats & HMOs.

Work in a small place like Donnington is planned ahead, journey included, so it can be fitted around guests, clients or events where possible.

There’s a 12-month guarantee on every job.

Where
Donnington (RG14)
Wider area
West Berkshire
Cover
12 months on all our work
Price
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

Aftercare tips

No joint lasts for ever, but care makes a real difference. A few tips:

  • Ask which product was used before you paint
  • Flag any open gap you spot round a pipe or cable
  • Look in service cupboards and ceiling voids from time to time
  • Keep the record of products and locations with your fire safety documents

Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we used.

Open gaps do not only matter in a fire: they also let noise, draughts and sometimes pests through. Sealing them early helps on every front.

How the visit works

When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as Donnington, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. Access to each area is agreed so the work can run in order.
  2. Old, damaged or unsuitable sealant is removed.
  3. Dust and loose debris are cleaned from each gap.
  4. We apply and tool the sealant to the product’s tested detail.
  5. We record what was done and flag anything that needs a different system.

How to prepare

  • Tell us about any water getting in
  • Mention any tricky access
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

If you are in Donnington and need fire rated sealant, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.

Get a quick quote

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Donnington: your questions answered

Do you work for landlords with property near Newbury station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Is Donnington within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Are you an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

Can ordinary silicone be used in a fire-stopping gap?

No. A gap that needs fire stopping needs a tested fire-rated product, installed to its details.

Are you fully insured?

Yes. We’re fully insured for domestic and commercial work.

What do you need from me for a quote?

The location, the problem and the rough size of the job. If you can, email a few pictures.

Does someone need to be in?

For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.

How we quote for fire rated sealant

The price is agreed before any work begins. It’s based on:

  • Any mould that needs treating
  • How easy the joints are to reach
  • The type of sealant required
  • Whether old sealant or filler has to be cut out

No two jobs are quite the same, so we quote each one individually. 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.

Helping us quote

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

  • Photos by email, if that’s easy
  • What’s wrong with the joints now
  • Where the property is
  • Any access issues, like height or stairs

To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.

Commercial buildings in Donnington

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. There are hotels and other places to stay in and around Donnington. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.

Rented homes near Newbury station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For buildings such as Parish Church of St Mary, older buildings that have had new heating or wiring often have service gaps worth checking.

Donnington is about 1 mile north of Newbury, in West Berkshire. Homes, rented property, offices and hotels in Donnington is covered for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Donnington is one of 155 places in West Berkshire where we work. Our Reading page covers work nearby, about 15 miles away.

Our applicators cover all of the RG14 postcode area for fire rated sealant and the streets around it. Whether your property is on The Orchids, The Redcoats and Cannon Close or a nearby road, our applicators can take on the job. We also cover Speenhamland (1 mile south), Shaw (1 mile south-east), Bagnor (1 mile south-west), Speen (1 mile south-west) and Stockcross (2 miles west). Within a short drive, we also cover Thatcham (3 miles east), Burghfield Common (12 miles east), Hungerford (8 miles west), Calcot (12 miles east), Lambourn (11 miles north-west) and Burghfield Hill (12 miles east).

Landmarks near Donnington

In Donnington, that means homes and buildings near Trinity School, Victoria Park and The Castle pub. Donnington’s nearest station is Newbury station, roughly 1.5 miles south of the centre. A little further out are Donnington Castle (within half a mile west) and West Berkshire Community Hospital (1.9 miles south-east). The countryside around Donnington includes Rack Marsh.

Map of Donnington © OpenStreetMap contributors

For landlords and businesses

In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

Letting agents often deal with us directly. Tell us the address, the job and how access works.

What we can’t put right

New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:

  • Fire doors that need new seals, closers or hardware
  • Assessing a building’s fire safety
  • Construction that doesn’t provide fire resistance on its own

If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before booking.

What we seal

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

Different surfaces, different methods

Linear gaps

Some linear gaps have to cope with movement as well as fire. We choose a product and depth that suit the gap and the movement.

Masonry and concrete

Core-drilled and broken-out holes in concrete are often irregular. We measure the gap at its widest point against the product’s tested range.

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