The Mastic Doctor team standing beside their branded vans outside an office building
Surrey · England

Sheet's Heath fire stopping

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Sheet's Heath. Send details for a fixed quote.

  • Snag lists that include open service penetrations
  • Damaged fire seals in risers and voids
  • Non-fire-rated filler around services
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Need fire stopping in Sheet's Heath?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

What we can’t put right

Honesty saves time and money. New sealant won’t cure:

  • Deciding what a wall or floor needs, which belongs to the designer
  • Reviewing a building’s overall fire safety
  • Issuing fire ratings or certificates for seals

If you’re not sure, just call the office on 01277 525 020 or email the details over and we will give you a straight answer before you book.

Joints and surfaces we work on

  • Service gaps in risers
  • Linear gaps at wall heads
  • Pipe penetrations
  • Joints between fire-resisting walls and floors
  • Small duct penetrations where the tested detail allows
  • Cable penetrations

About our fire stopping in Sheet's Heath

Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal. If you have openings left by services added after handover and expanding foam used as fire stopping, we can help, on pipe penetrations, linear gaps at wall heads and service gaps in risers alike. One point of contact handles commercial sealant work in Sheet's Heath from the first photographs to the final walk-round, whether it’s one building or several.

Barn and farm-building conversions near places like Sheet's Heath often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Our workmanship is guaranteed for 12 months, in Sheet's Heath as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Place
Sheet's Heath (GU24)
Region
Surrey
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Diagnose, treat, sign off

On arrival, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work usually takes a single visit for a short list of penetrations, or a phased programme for a whole building. For a building around Sheet's Heath, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. First we confirm the product and tested details named in the specification.
  2. We sort the openings by the detail each one needs.
  3. Old or wrong materials are cut out.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Before we start on site

  • Let us know about inductions and permits
  • Explain the parking and delivery arrangements
  • Share your working hours and any access restrictions

Request a quote

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Ask for a quote

Related advice

Penetration seals near Sheet's Heath

In England, Approved Document B covers fire stopping of openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Sheet's Heath lies roughly 27 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.

Halls and meeting rooms at places like Saint Saviour's Church sometimes gain new services, and any compartment wall crossed needs the specified seal. Wherever services are added at a hospital such as Cygnet Hospital (1 mile east of Sheet's Heath) the compartment line has to be made good with the specified product.

Sheet's Heath is about 3 miles west of Woking, in Surrey. Looking for fire stopping in Sheet's Heath? We can help, as we do across Surrey. Across Surrey, 379 places are covered, Sheet's Heath among them. Our Reading page has more on work in that area (17 miles or so).

Postcode districts covered here: GU24 for service penetrations. We cover commercial and managed buildings on Benwell Road, Sheet's Heath Lane and The Ridgeway and the roads nearby. If your building is just outside Sheet's Heath, we cover Brookwood (1 mile south), Knaphill (1 mile north-east), Bisley (1 mile north), Lucas Green (2 miles north) and West End (2 miles north). Further afield, our area takes in Guildford (5 miles south-east), Woking (3 miles east), Camberley (4 miles north-west), Farnham (10 miles south-west), Egham (9 miles north-east) and Walton-on-Thames (11 miles north-east).

Near you in Sheet's Heath

Locally, jobs take us to sites close to Knowl Hill School, Brookwood Lye and Nag's Head Inn, among other places. The closest station to Sheet's Heath is Brookwood station, about 0.5 miles south. Other landmarks nearby include The Museum of The National Rifle Association (0.8 miles west) and Brookwood Hospital (0.9 miles east). Not far away are Brookwood Lye.

Map of Sheet's Heath © OpenStreetMap contributors

Questions we are asked in Sheet's Heath

Will you take on work at estates like Martlands Industrial Estate, close to Sheet's Heath?

Yes, sites like Martlands Industrial Estate are within our area, along with the rest of Sheet's Heath. A few photographs and the unit address let us price the work.

Can you take on a job at a hospital such as Cygnet Hospital?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.

What about RAMS and site documents?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Do the same rules apply to fire stopping in Scotland?

Building standards in Scotland are separate from England’s. Wherever the site is, our work follows the specification and the tested detail.

Is it fine to apply new sealant on top of old?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Will you write the fire-stopping specification?

No. Deciding what is needed sits with the designer, fire engineer and building control. Our role is installing what they specify, to the product’s tested detail.

Different surfaces, different methods

Risers and ceiling voids

Service risers and the voids above ceilings are where openings collect. Access is often tight, so we agree it with you in advance.

Drylining partitions

Plasterboard partitions are tested as a specific construction. The sealant detail has to be tested in that wall type, with the stated board layers before sealing.

Quoting for work in Sheet's Heath

A fixed quote reflects the actual work. It allows for:

  • Specialist products, such as fire-rated or hygienic sealants
  • Whether old sealant has to be cut out first
  • Any access equipment needed
  • Site requirements such as inductions and permits

The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.

What we need to price the job

Good information means a firmer quote. When you get in touch, include:

  • The site address and postcode
  • A wide shot and a close-up of the area
  • Approximate linear metres or a joint schedule
  • Asbestos survey details if the building is older

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email the details over.

What happens if it’s left?

An unsealed opening affects more than fire safety: they also carry noise, draughts and smells between rooms. The specified fire seal closes the gap for all of these and the building feels the difference. Halls, stores and units around places like Sheet's Heath may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Why clients in Sheet's Heath choose us

  • Constructionline member for supplier checks
  • Commercial sealant work since 2005
  • A fixed quote before work starts
  • Public liability insurance in place

Take a look at our cost guide and how we’re accredited.

When to call us in Sheet's Heath

Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.

Typical triggers for a call:

  • Improvised or mixed-product fire seals
  • Fire sealant pulled out of the opening
  • Service penetrations left open after M&E works
  • Unsealed penetrations discovered above suspended ceilings

For an estates team at a campus like University of Surrey, 4.6 miles south of Sheet's Heath, summer M&E works are normally followed by a round of penetration sealing.

Questions to ask before you book

  • The terms of the workmanship guarantee
  • Proof of insurance
  • Will RAMS and insurance details be available?
  • Their pre-qualification and accreditations

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.