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

Fire Stopping in Rake

Sealant work in Rake for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Expanding foam used as fire stopping
  • Fire-rated sealant that has cracked or shrunk back
  • Fire stopping installed outside its tested range
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Fire stopping for Rake sites

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Fire stopping for commercial buildings in Rake

Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it, matching the product and detail it names. Where there isn’t one, the designer or fire engineer needs to set one first. If you are dealing with open linear gaps along the top of fire-resisting walls and snag lists that include open service penetrations, we can put it right, on small duct penetrations where the tested detail allows, service gaps in risers and linear gaps at wall heads alike. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Rake is the same: the right product in a properly prepared joint.

Smaller places such as Rake still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Rake (GU33)
Region
Hampshire
Cover
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026

What sealant work can’t fix

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Signing off or certifying a building’s fire stopping
  • Writing the fire-stopping specification
  • Large openings beyond what any sealant detail covers

If you’re not sure, just give us a call on 01277 525 020 or use the quote form and we will give you a straight answer before you book.

Surfaces we seal

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

Service penetrations in Rake buildings

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Rake is about 45 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal.

Offices at parks like Ham Barn Business Park, 2.3 miles to the north-west of Rake, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. In a building such as Rake Mission Church, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Rake is about 4 miles north-east of Petersfield, in Hampshire. Our applicators travel to Rake for work on service penetrations. 723 places across Hampshire fall within our area, including Rake. Our Portsmouth page has more on work in that area (19 miles or so).

We take on service penetrations across the GU33 postcode area, for business premises of every kind. Streets here include London Road, Brewells Lane and St Patrick's Lane. If your building is just outside Rake, we cover The Mint (1 mile north-west), Hill Brow (1 mile south-west), Liss (1 mile west), Liss Forest (1 mile north-west) and West Liss (2 miles west). A short drive away, we cover Havant (14 miles south-west), Horndean (12 miles south-west), Aldershot (15 miles north), Alton (9 miles north-west), Waterlooville (14 miles south-west) and Petersfield (4 miles south-west).

Around Rake

We work on buildings around The Sun Inn. The nearest railway station is Liss station, about 1.6 miles west. Well-known places in the area include Chase Community Hospital (4.2 miles north). For a walk, there’s Liss Riverside Railway Walk North and Wheeler's Down.

Map of Rake © OpenStreetMap contributors

Diagnose, treat, sign off

Working in a building that stays open takes some planning. We sign and contain the area we’re in, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Smaller jobs around Rake can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.

  1. The specification and schedule come first, so we know which details apply.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Foam, ordinary sealant and debris come out first.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

Preparing the site

  • Explain the parking and delivery arrangements
  • Confirm the product named in the specification
  • Tell us which areas need to stay in use

Getting a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.

Get a price

Advice

Different surfaces, different methods

Cables and cable bundles

Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables.

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 along with any permits your site needs.

When to bring in a specialist

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

Rake: questions and answers

Is Ham Barn Business Park, near Rake, within your area?

Yes, sites like Ham Barn Business Park are within our area, along with the rest of Rake. Send details of the unit and the work through our quote form for a quick quote.

What does the BS 476 change mean for fire-rated sealant in Rake?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, with one point of contact.

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

Can staff carry on working while you’re here?

Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.

Do you cover Rake?

Yes. We take on work across Rake, with one number for every area we cover.

Do you have public liability insurance?

Yes. We’re fully insured, including public liability cover.

Common problems we fix in Rake

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Deflection and building movement can open these gaps, and the wrong product can split as a result. Linear joint details set a width range and movement capability, and the seal has to sit within them.

If one of these sounds familiar, it’s time for a closer look:

  • Unsealed joints where partitions meet the slab
  • Openings found when ceilings come down for a refit
  • Snag lists that include open service penetrations
  • Fire-rated sealant that has cracked or shrunk back

At a healthcare site like Chase Community Hospital, 4.2 miles north of Rake, new services through compartment walls are a constant, and each needs the specified seal.

Questions to ask before you book

  • Do they follow the manufacturer’s priming guidance?
  • Their approach to joint depth and backing
  • Health and safety accreditation such as CHAS
  • How the existing material will be dealt with

Questions to ask before you appoint anyone

Why act early in Rake

Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme. Halls, stores and units around places like Rake may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.

Why choose Mastic Doctor in Rake

  • Sealing commercial buildings since 2005
  • Constructionline member for supplier checks
  • Work to your specification and the manufacturer’s guidance
  • One contact handling all your sites

See our cost guide or our accreditations.

Accreditations

Trusted. Accredited. Insured.