Surrey · England

Fire-rated sealant in Sandhills, Surrey

Fire rated sealant for Sandhills, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Door frames with gaps between frame and wall
  • Gaps flagged on a fire risk assessment
  • Damaged fire sealant left by other trades

Fire rated sealant near Sandhills

Fire rated sealant in Sandhills, done properly

We often work from an action list drawn up by a fire risk assessor. If you share the list, we can quote for the gaps that need fire-rated sealant. We work on door frames, pipe & cable gaps and flats & HMOs, and common reasons people get in touch are open gaps behind door architraves and gaps filled with a product that isn’t fire-rated.

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

All our work comes with a one-year guarantee, wherever you are in Surrey.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Sandhills (GU8)
Region
Surrey
Cover
A year, on every job
Quote
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

Why deal with it now?

Waiting for the next refit can leave a gap open for years. Sealing the gap now is a contained job on its own and needn’t wait for anything else. In a small place like Sandhills, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.

Why us?

  • More than 20 years in sealant work
  • 4.9 on Google from 180+ five-star reviews
  • We leave the area clean and tidy
  • Anti-fungal silicone where joints get wet

See our cost guide or our reviews.

What the job involves on each surface

Linear gaps

Linear gaps run along the head of walls, at floor edges and between panels. We seal them to the tested detail, with backing where it’s needed.

Flats and HMOs

Converted houses often have gaps around old and new services. We seal the ones on your specification with a tested product and record where they are.

Workplaces and buildings in Sandhills

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.

If you look after a church, hall or community building such as Church of All Saints, older buildings that have had new heating or wiring often have service gaps worth checking. If you look after a building such as King Edward's School Witley, gaps opened by contractors for new cabling are a common finding in schools and offices.

Sandhills is about 8 miles south-east of Farnham, in Surrey. Sandhills gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Sandhills is one of 395 places in Surrey we cover for fire rated sealant. There’s also a page for Crawley, roughly 20 miles from Sandhills.

Here we cover the GU8 postcode area for fire rated sealant. If you need fire rated sealant at a property on Brook Road, Sebastopol Lane and Hatch Lane or a nearby road, we can help. Other places close to Sandhills include Brook (1 mile west), Wormley (1 mile east), Hambledon (1 mile east), Bowlhead Green (1 mile west) and Witley (1 mile north). We also work in nearby towns such as Guildford (9 miles north-east), Woking (13 miles north), Camberley (14 miles north), Farnham (8 miles north-west), Frimley (13 miles north) and Haslemere (4 miles south-west).

What’s near Sandhills

Around Sandhills, our work takes us to homes and buildings near Rodborough, Dog And Pheasant Public House and Witley CofE Controlled Infant School and the streets around them. Sandhills’s nearest station is Witley station, roughly 0.5 miles east of the centre. A little further out are Milford Hospital (2.7 miles north-east). Open spaces near Sandhills include Hydon's Ball and Farncombe Wood.

Map of Sandhills © OpenStreetMap contributors

For landlords and businesses

For anyone letting property in or around Sandhills, several properties can go on one quote. Just tell us the addresses and what each one needs.

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

Can I do it myself?

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

The process

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It generally takes a few hours for a handful of gaps, and longer for a whole building. Somewhere as small as Sandhills, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Access to each area is agreed so the work can run in order.
  2. We take out any damaged or unsuitable sealant.
  3. Gaps are cleaned of dust and loose material.
  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

  • For business premises, tell us about site rules or sign-in
  • Keep children and pets away from the work area
  • Let us know about earlier repairs to the joints

Ask for a quote

Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Get a quick quote

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What affects the quote in Sandhills

For a quick quote, just ask. The main things that affect it are:

  • Whether the work is at height
  • When we can work, for business premises
  • How many areas need sealing
  • The product the joint needs

We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or send us an email and we’ll talk you through it.

What we need to know

Before you ask for a quote, have a think about:

  • Where the job is, and your postcode
  • Whether it’s a home or a business
  • If someone has resealed it before
  • A few photos by email, if you can

For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear price.

Questions from Sandhills

Can you help a landlord with a rental near Witley station?

Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.

Is Sandhills in your area for fire rated sealant?

Yes. We work across London and the South East, and Sandhills is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.

Do you work in flats, HMOs and commercial buildings?

Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. The order of work and access are planned with you.

How long does fire rated sealant take?

As a guide, most jobs take anything from a few hours to several days, depending on how many gaps there are. Larger jobs naturally take longer, and we’ll tell you how long to expect.

Is intumescent sealant the same as fire-rated sealant?

An intumescent sealant expands when it gets hot, helping close the gap. It’s one type of fire-rated sealant; which product suits depends on the gap, the substrate and the service.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

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.

Is it OK to seal over old sealant?

No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.

When to call us in Sandhills

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 round the new service is not always sealed again.

Common reasons people contact us include:

  • Old fire sealant that has split or come away
  • Damaged fire sealant left by other trades
  • Joints picked up in a fire-stopping survey
  • New service routes left unsealed after building work

If you let a flat or house near Witley station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Questions to ask before you book

  • How the surfaces are prepared before sealing
  • How much experience the applicator has
  • Whether they seal over old material or remove it
  • What insurance they hold

How to choose a mastic man

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