Surrey · England

Fire-rated sealant in Grafham, Surrey

Intumescent and fire-rated sealant around gaps, frames and service penetrations for householders, landlords and businesses in Grafham. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Standard silicone or caulk in a fire-stopping gap
  • Old fire sealant that has split or come away
  • Linear gaps at the head of walls

Fire rated sealant for Grafham homes and businesses

About our fire rated sealant in Grafham

A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. We check the size and the substrate before choosing the product, then apply it to the depth its tested detail calls for. We work on plasterboard & masonry, service penetrations and linear gaps, and people most often call us about seals cut through by electricians, plumbers or data installers and unsealed gaps where pipes and cables go through a wall.

In a village or hamlet like Grafham, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Grafham (GU5)
Wider area
Surrey
Guarantee
One year on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026

When it is not the sealant

It helps to know what we cannot do:

  • Big openings where sealant alone isn’t the tested solution
  • Problems with the door itself rather than the gap around the frame
  • Assessing a building’s fire safety

If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before booking.

Surfaces we seal

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

Why deal with it now?

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. In a small place like Grafham, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Doing several joints on one visit usually makes better use of the time than several visits. We’ll send you a clear quote for the lot.

What you get with us

  • Quality sealants from Arbo and Everbuild
  • Every job guaranteed for a year
  • Anti-fungal sanitary silicone in wet areas
  • 4.9 on Google from 180+ five-star reviews

Take a look at how sealant jobs are priced or our reviews.

How the job changes by surface

Masonry and concrete

Core-drilled and broken-out holes in concrete are often irregular. We measure the gap at its widest point to make sure it suits the product.

Service penetrations

Wherever a service goes through a fire-resisting wall or floor, there’s a gap around it. We seal it with a product tested for that service and gap size.

What fire rated sealant looks like in Grafham

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, 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.

If you look after a church, hall or community building such as Church of St Andrew, gaps around pipes and cables are worth checking after any building work there.

Grafham is about 6 miles south of Guildford, in Surrey. Every kind of property in Grafham can book us for fire rated sealant. Every job comes with our 12-month guarantee. Our Surrey coverage runs to 395 places, Grafham among them. Crawley is on our list too, about 16 miles from Grafham.

Every address in GU5 is covered for fire rated sealant. If you’re just outside Grafham, we cover Birtley Green (1 mile north), Shamley Green (1 mile north), Thorncombe Street (1 mile west), Stroud Common (1 mile north-east) and Rowly (2 miles east). Within a short drive, we also cover Guildford (6 miles north), Woking (11 miles north), Camberley (14 miles north-west), Farnham (11 miles west), Reigate (15 miles east) and Dorking (10 miles north-east).

Around Grafham

In Grafham, that means homes and buildings near Cucknell's Wood, among other places. The nearest railway station is Chilworth station, about 3.5 miles north. Other landmarks nearby include Godalming Museum (3.6 miles north-west) and Guildford Castle (4.9 miles north). For a walk, there’s St Martha's Hill and Colyer's Hanger and Lower Lake.

Map of Grafham © OpenStreetMap contributors

Questions from Grafham

Will you come out to Grafham?

Yes. Grafham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you work for landlords with property near Chilworth station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.

Will we have a record of what was sealed?

Yes. We note each location and the product that went in so it’s there for the next inspection.

Do you take out the old sealant first?

Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.

What does intumescent mean?

An intumescent sealant expands when it gets hot to help seal the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.

Can you tell me how many minutes the seal will last?

We don’t give ratings or certificates for our work. Your specification sets the requirement, and we apply a product tested for it.

Do the sealants smell?

That depends on the sealant. Some products have a noticeable smell, others very little.

Common problems we fix in Grafham

Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was tested. We see plenty of fire stopping that was hurried.

Any of these means the joints need attention:

  • Gaps filled with a product that isn’t fire-rated
  • Holes left by a change of layout
  • Old fire sealant that has split or come away
  • Sealant items on a fire risk assessment action list

For landlords with property near Chilworth station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

What your quote should include

  • What the quote includes, VAT included or not
  • Whether you can choose the colour
  • How the joint is cleaned and prepared
  • Are they insured?

How to choose a mastic man

The process

We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Somewhere like Grafham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. Anything that is not fit for the job comes out, and the gap is cleaned.
  3. Where the tested detail needs backing or fill, we fit it.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. Locations and products are noted so you have them on file.

Getting ready for the visit

  • Mention if the joints have been sealed before
  • Keep children and pets away from the work area
  • Clear items away from the joints we’re working on

Getting a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

Get a price

Read more

What affects the quote in Grafham

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

  • The old material and how stubborn it is
  • Any mould that needs treating
  • The size of the job
  • The type of sealant required

Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.

Asking for a quote

When you contact us, it’s useful to know:

  • The address or postcode of the job
  • Any access issues, like height or stairs
  • Whether it’s a home or a business
  • Roughly how big the job is

If you are in Grafham and need fire rated sealant, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.

For landlords and businesses

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

If you manage several properties in or around Grafham, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.

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