Oxfordshire · England

Fire-rated sealant in Crowmarsh Gifford, Oxfordshire

Problem with your fire-stopping gaps in Crowmarsh Gifford? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.

  • Ordinary sealant used where a fire-rated product was needed
  • Linear gaps at the head of walls
  • Sealant items on a fire risk assessment action list

Fire rated sealant in Crowmarsh Gifford

Fire rated sealant in Crowmarsh Gifford

Intumescent sealant looks much like any other sealant until it gets hot; 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 work to the manufacturer’s details. We work on service penetrations, plasterboard & masonry and linear gaps, and common reasons people get in touch are unsealed gaps around fire door frames and gaps filled with a product that isn’t fire-rated.

For a small place like Crowmarsh Gifford, the journey and timings are agreed in advance, so it can be fitted around guests, customers or events where possible.

The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or send us an email.

Place
Crowmarsh Gifford (OX10)
Wider area
Oxfordshire
Guarantee
One year on every job
Quote
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

FAQs for Crowmarsh Gifford

Is Crowmarsh Gifford in your area for fire rated sealant?

Yes, Crowmarsh Gifford is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.

Do you work for landlords with property near Cholsey station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.

Can I do it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Do you offer different sealant colours?

In most cases you can choose. We’ll tell you which colours the right product comes in and agree one before work begins.

Is the work guaranteed?

Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.

What’s the difference between intumescent and fire-rated sealant?

An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all, and the choice depends on the gap.

How do I get a quote for fire rated sealant in Crowmarsh Gifford?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.

Can I add another job to the visit?

Yes. Just list everything you need and you will get one quote.

Do you need fire rated sealant in Crowmarsh Gifford?

Many open fire-stopping gaps are made after the building is finished. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave doesn’t always get resealed.

Keep an eye out for these signs:

  • Cracked or shrunken fire-rated sealant
  • Open joints along the top of partitions
  • Gaps flagged on a fire risk assessment
  • Gaps around pipes and cables through fire-resisting walls

For buildings such as Church of St Mary Magdalene, older buildings that have had new heating or wiring often have service gaps worth checking.

What to look for in a quote

  • Is the old sealant removed completely?
  • How the surfaces are prepared before sealing
  • How long the guarantee is
  • Are they insured?

How to choose a mastic man

Landlords, agents and businesses in Crowmarsh Gifford

We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.

Why it’s worth doing now in Crowmarsh Gifford

A quick fill with any sealant to hand isn’t fire stopping. A fire-rated product only performs as tested when it’s installed to its tested detail, so both the product and the method matter. Where a wall is exposed, as many are in small places like Crowmarsh Gifford, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

The cost reflects the work involved, not guesswork. That’s why we ask about the job first and give you a clear quote before work begins.

Why us?

  • Full insurance on every job
  • Rated 4.9 stars on Google
  • More than 20 years in sealant work
  • Experience in homes, commercial sites and hotels

Take a look at our cost guide and what customers say.

Fire rated sealant in Crowmarsh Gifford: local notes

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 work to the specification you’re given, installing the product to its tested details.

If you let a flat or house near Cholsey station, any gap left by new services in shared walls should be closed with a fire-rated product. Schools such as Crowmarsh Gifford Church of England School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.

Crowmarsh Gifford is about 6 miles east of Didcot, in Oxfordshire. For fire rated sealant in and around Crowmarsh Gifford, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover Oxfordshire, Crowmarsh Gifford included. Crowmarsh Gifford is one of 443 places in Oxfordshire where we work for fire rated sealant. Reading is on our list too, about 12 miles from Crowmarsh Gifford.

We work across OX10 for fire rated sealant. We cover properties on The Street, Little Hitchen and McCulloch Meadows and the roads around them. Other places close to Crowmarsh Gifford include Newnham Murren (1 mile south-west), Mongewell (1 mile south-west), Winterbrook (2 miles south-west), North Stoke (2 miles south) and Cholsey (3 miles south-west). Further out, we also cover Oxford (12 miles north-west), Didcot (6 miles west), Abingdon-on-Thames (9 miles north-west), Thame (12 miles north-east), Wantage (14 miles west) and Henley-on-Thames (10 miles south-east).

Near you in Crowmarsh Gifford

Around Crowmarsh Gifford, our work takes us to homes and buildings near Howbery Park, Wallingford School and The Bell Inn, among other places. The nearest railway station is Cholsey station, about 2.9 miles south-west. Other landmarks nearby include Wallingford Castle (0.6 miles north-west). Not far away are Wittenham Clumps and Ewelme Watercress Beds.

Map of Crowmarsh Gifford © OpenStreetMap contributors

What happens on the day

We keep the work tidy and contained to the area we’re working on, so you can get on with your day. The job usually takes a few hours for a handful of gaps, and longer for a whole building. For a village or hamlet like Crowmarsh Gifford, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. Before starting, we go through the specification or action list with you.
  2. Each gap is measured and its substrate and service noted.
  3. Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. Every location is recorded with the product used for your files.

Getting ready for the visit

  • Keep pets and children clear of the area while we work
  • Let us know about parking restrictions
  • Clear the area around the work

Ask for a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or drop us an email.

Get a quick quote

Advice

Different surfaces, different methods

Flats and HMOs

In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We work through the gaps on your assessment.

Plasterboard walls

Plasterboard partitions are common in flats, offices and conversions. The sealant has to be one tested in plasterboard for each gap size.

DIY sealant or a professional job?

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.

When something else is needed

We will not take on work that won’t last, so here’s what sealant can’t put right:

  • Deciding what fire stopping a building needs
  • Walls or floors that weren’t built to resist fire
  • Issuing a fire rating or certificate for a building

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.

Joints and surfaces we work on

  • Door frames
  • Flats & HMOs
  • Linear gaps
  • Plasterboard & masonry
  • Service penetrations
  • Pipe & cable gaps
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job