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

Fire stopping in Highstreet Green

Fire stopping in Highstreet Green, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Openings left by services added after handover
  • Seals disturbed by maintenance and left open
  • Fire-rated sealant that has cracked or shrunk back
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping near Highstreet Green

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

About our fire stopping in Highstreet Green

We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance on buildings around Highstreet Green. Site teams most often ask us about fire-stopping items raised at inspection or handover and non-fire-rated filler around services, across small duct penetrations where the tested detail allows, linear gaps at wall heads and joints between fire-resisting walls and floors. A specialist sealant contractor works differently from a general builder: in Highstreet Green, that means joint design, primers and backing rod as standard.

For a smaller site near Highstreet Green, we plan to do all the penetrations in one go, with the specification and photos sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.

Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Highstreet Green (GU8)
Region
Surrey
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Maintenance after handover

Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:

  • Have penetrations checked while they can still be seen
  • Keep general-purpose fillers away from compartment walls
  • Put resealing into every M&E and fit-out package
  • Keep product data and details in the fire safety file

Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.

Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.

Service penetrations in Highstreet Green buildings

At about 35 miles from central London, Highstreet Green is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal. Fire stopping of openings and penetrations in England falls under Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

Around Highstreet Green, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product. Wherever services are added at a hospital such as Milford Hospital, 4.4 miles north of Highstreet Green, the compartment line has to be made good with the specified product.

Highstreet Green is about 10 miles south of Guildford, in Surrey. We cover commercial sites throughout Highstreet Green, for single jobs and planned programmes alike. Highstreet Green is one of 379 places in Surrey on our list for service penetrations. Our Brighton page has more on work in that area, about 28 miles away.

Postcode districts covered here: GU8. We also cover Chiddingfold (2 miles west), Hambledon (2 miles north-west), Wormley (3 miles north-west), Sandhills (3 miles north-west) and Hydestile (3 miles north). A short drive away, we cover Guildford (10 miles north), Woking (15 miles north), Farnham (11 miles north-west), Dorking (15 miles north-east), Frimley (15 miles north) and Haslemere (5 miles west).

Local landmarks in Highstreet Green

Highstreet Green’s nearest station is Witley station, roughly 2.7 miles north-west. A little further out are Milford Hospital (4.4 miles north). For a walk, there’s Hydon's Ball and Shillinglee Lake.

Map of Highstreet Green © OpenStreetMap contributors

When something else is needed

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Large openings beyond what any sealant detail covers
  • Gaps in walls that were never built as compartment walls
  • Fire doors, dampers or other fire safety equipment

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

Joints and surfaces we work on

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

Leave it or put it right?

Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme. For buildings around smaller places like Highstreet Green, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why clients in Highstreet Green choose us

  • Specification-led, product-correct work
  • Fully insured, including public liability cover
  • 12-month guarantee on workmanship
  • One phone line for London, the South East and Scotland

See how commercial sealant jobs are priced or our accreditations and insurance.

Doing it in-house

Redoing a failed joint typically costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

For managing agents and facilities managers

Building owners and managing agents use us on everything from one building to a spread of sites around Highstreet Green. Several sites can go on one quote, so there’s one set of paperwork to deal with.

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Highstreet Green can form part of a wider programme.

Your questions answered

Is Highstreet Green too far out for you?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

How does the move away from BS 476 affect penetration seals in Highstreet Green?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Can weather delay the job?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.

How long does a typical visit take?

We plan the time on site around your programme and access. You’ll have an expected duration with the quote.

Can you fit around our working hours?

Mention the site’s hours and access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.

Can staff carry on working while you are here?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

From enquiry to sign-off

At the end of each section, we remove the tape, clean down and inspect every joint with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. Jobs in and around smaller places like Highstreet Green are usually planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • For older buildings, check the asbestos register before work
  • Move anything stored against the joints
  • Tell us which areas need to stay in use

Request a quote

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or speak to us on 01277 525 020 or use the quote form if you’d rather talk the job through.

Get a quick quote

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