Surrey · England

Fire Rated Sealant in Holmbury St Mary

Our applicators work in Holmbury St Mary on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.

  • Door frames with gaps between frame and wall
  • Gaps flagged on a fire risk assessment
  • Holes left by a change of layout

Trusted fire rated sealant in Holmbury St Mary

Fire rated sealant in Holmbury St Mary

Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through. We work on service penetrations, flats & HMOs and door frames, and common reasons people get in touch are door frames with gaps between frame and wall and open holes round services passing through fire walls.

If you have holiday lets, a converted barn used for business or a community building near Holmbury St Mary, the washrooms, kitchens and any fire-rated joints need the same care as a big site.

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.

Eleven members of the Mr Mastic team standing in front of branded white vans
Place
Holmbury St Mary (RH5)
Wider area
Surrey
Cover
A year, on every job
Quotes
A clear price before we start
Call
0345 464 0079
Page updated
26 October 2026

What the job involves on each surface

Flats and HMOs

Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified room by room.

Linear gaps

Gaps along the top of partitions are easy to miss above a ceiling. We seal them along their full length so there are no open sections left.

Looking after it afterwards

After the cure time, these simple habits help:

  • Look in service cupboards and ceiling voids from time to time
  • Include fire stopping when you schedule refits
  • Don’t fill fire-stopping gaps with ordinary foam or silicone
  • Tell trades working in the building that fire seals must be put back

Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.

A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.

What affects the quote in Holmbury St Mary

Your quote is based on your job. We look at:

  • The number and length of the joints
  • The old material and how stubborn it is
  • Any working-time requirements on site
  • Whether there’s mould to deal with

There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us.

Helping us quote

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

  • Roughly how big the job is
  • Any previous sealing or DIY work
  • The type of property
  • How we’d reach the joints

There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.

Leave it or put it right?

Paying for fire stopping that has to be redone is a false economy. If the details weren’t followed, the seal may need redoing when the building is next checked. Older cottages and farmhouses around Holmbury St Mary can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.

Why book with us

  • Fully insured
  • Sanitary silicone with an anti-fungal additive in wet areas
  • Approved under the ARBOMaster scheme
  • Arbo and Everbuild products

Read what affects the cost and what customers say.

Holmbury St Mary questions

Do you work for landlords with property near Gomshall 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’ll give you a clear quote.

Do you cover Holmbury St Mary for fire rated sealant?

Yes, Holmbury St Mary is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.

What does fire rated sealant cost?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Can I do it myself?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

Can you do several jobs on one visit?

Yes, we can. Several rooms, windows or areas can go on one quote.

Are you an approved applicator?

Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.

Can you seal over the old sealant?

No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.

Can you match the sealant colour?

Most of the time, yes. We’ll explain which colours are available.

Workplaces and buildings in Holmbury St Mary

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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 let a flat or house near Gomshall station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Schools such as Belmont Prep School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.

Holmbury St Mary is about 5 miles south-west of Dorking, in Surrey. Anywhere in RH5, we can carry out fire rated sealant at your property. Holmbury St Mary is one of 395 towns and villages in Surrey where we work for fire rated sealant. Our Crawley page covers work nearby.

Jobs for fire rated sealant in RH5 works the same way as everywhere else we cover. You will find streets such as Horsham Road and Felday Glade, and we cover them all. We also cover Pitland Street (1 mile south), Peaslake (1 mile west), Farley Green (3 miles west), Ewhurst (3 miles south) and Ewhurst Green (3 miles south). We also work in nearby towns such as Guildford (8 miles north-west), Woking (11 miles north-west), Epsom (12 miles north-east), Horley (11 miles east), Redhill (11 miles east) and Ewell (13 miles north-east).

Near you in Holmbury St Mary

Typical jobs here are in homes near Wotton and Abinger Commons, The Volunteer pub and Hurtwood House. Holmbury St Mary’s nearest station is Gomshall station, about 2.1 miles north-west of the centre. A little further out are Mesolithic Museum (0.7 miles north-east) and Abinger Castle (0.7 miles north-east). Not far away are Leith Hill and Silent Pool.

Map of Holmbury St Mary © OpenStreetMap contributors

DIY sealant or a professional job?

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

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

Common problems we fix in Holmbury St Mary

A lot of fire stopping is out of sight: in ceiling voids, service risers and behind boxing. Out of view, damage sits unnoticed until someone inspects.

Signs it’s time to call us include:

  • Gaps around pipes and cables through fire-resisting walls
  • Ordinary sealant used where a fire-rated product was needed
  • Seals cut through by electricians, plumbers or data installers
  • Open joints along the top of partitions

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

Comparing quotes

  • How hidden problems are handled
  • Is VAT in the price?
  • Whether all the old sealant comes out first
  • How long the guarantee is

How to choose a mastic man

How it works

When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work normally takes anything from a few hours to several days, depending on how many gaps there are. For a village or hamlet like Holmbury St Mary, 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. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. We measure every gap and note what it’s in and what passes through.
  3. Any non-fire-rated filler is removed and the gap cleaned.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. We hand over a list of locations and products.

Before we arrive

  • Try not to wet indoor joints just before the visit
  • Let us know about parking restrictions
  • Keep children and pets away from the work area

Ask for a quote

Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear quote before work begins.

Ask for a quote

Read more

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