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

Farnham Common fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps across Farnham Common, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Openings left by services added after handover
  • Expanding foam used as fire stopping
  • Fire sealant pulled out of the opening
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping in Farnham Common

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

About our fire stopping in Farnham Common

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. With no specification in place, the first step sits with your designer or fire engineer, not with us. The enquiries we see most involve fire-stopping items raised at inspection or handover and unsealed penetrations discovered above suspended ceilings, across cable penetrations, joints between fire-resisting walls and floors and service gaps in risers. For commercial sealant work in Farnham Common, you deal with one contact from quote to sign-off, whether it’s one building or several.

Smaller places such as Farnham Common 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.

We stand by our work with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.

Location
Farnham Common (SL2)
Wider area
Buckinghamshire
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Farnham Common: questions and answers

Is Farnham Common too small for you to travel to?

Not at all. Farnham Common is within our area. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Is Slough Trading Estate, near Farnham Common, within your area?

Yes. We cover Farnham Common and the area around it, including industrial estates, business parks and retail parks such as Slough Trading Estate. Photos and a short description are enough for a first look.

Who decides which product is used?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you have third-party installer accreditation for fire stopping?

No. We are not members of a third-party fire-stopping installer scheme. Our credentials are CHAS accreditation, Constructionline membership and CSCS-carded applicators, and we are fully insured. If your contract requires third-party installer certification, we’re not the right fit for that package.

Can one quote cover more than one building?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

What do you charge?

Each job is quoted on its own details. To get one, call 01277 525 020 or use the quote form with a description of the work.

General trades versus a specialist

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Rural sites near Farnham Common may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.

  1. First we go through the drawings, schedule or specification for the seals 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. Mineral wool or other backing goes in wherever the detail asks.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Preparing the site

  • Move anything stored against the joints
  • For older buildings, check the asbestos register before work
  • Let us know about inductions and permits

Getting a fixed quote

For a fixed quote, call the office on 01277 525 020 or email a schedule or drawings. Our quote form is another easy route.

Get a price

Related advice

What the job involves on each surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.

Small ducts

Ducts are only sealed with sealant where the detail allows it. The ductwork, its supports and any dampers are for the ductwork contractor.

Owners, agents and contractors

If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

When to call us in Farnham Common

Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. The opening looks sealed but has no fire test evidence behind it, so it has to come out.

Look out for the following:

  • Fire sealant pulled out of the opening
  • Unsealed penetrations discovered above suspended ceilings
  • Builders’ foam or ordinary silicone in compartment walls
  • Openings left by services added after handover

Holiday works at schools like Farnham Common Junior School often leave service openings to seal before pupils return.

Before you book anyone

  • Are they CHAS accredited or on Constructionline?
  • Their approach to joint depth and backing
  • Whether primer will be used where the manufacturer specifies it
  • How long is the guarantee, and what does it include?

How to choose a sealant contractor

What affects the price in Farnham Common

Your fixed quote is built from the real scope. It allows for:

  • Whether the work must be split into stages
  • How accessible the joints are
  • How much existing material needs removing
  • Joint width, depth and condition

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

What to include in your enquiry

A good diagnosis starts with the right details. Let us know:

  • Any dates the work must fit around
  • Photos of the joints, close up and from further back
  • The asbestos register, for older buildings
  • The product your specification calls for

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, phone 01277 525 020 or email the details over.

Compartments and services around Farnham Common

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. A 2-mile radius around Farnham Common takes in a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

Hotels like Pinfield Boutique Hotel, 0.7 miles to the north-east of Farnham Common, are refurbished in phases, and each phase can open up compartment walls. On estates like Slough Trading Estate (2.8 miles south of Farnham Common), the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal.

Farnham Common is about 3 miles north of Slough, in Buckinghamshire. Farnham Common sits inside our coverage and the rest of Buckinghamshire, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across Buckinghamshire, 308 places are covered, Farnham Common among them. Sites around Reading have their own page, roughly 17 miles from Farnham Common.

Business premises anywhere in SL2 are within our area. We cover commercial and managed buildings on Temple Way, Common Wood and Badgers Wood. Nearby places we also cover include Egypt (1 mile north-west), East Burnham (1 mile south-west), Hedgerley (1 mile north-east), Farnham Royal (1 mile south) and Littleworth Corner (2 miles west) for service penetrations. Further afield, our area takes in High Wycombe (8 miles north-west), Chesham (11 miles north), Marlow (7 miles west), Amersham (8 miles north), Beaconsfield (4 miles north-west) and Chalfont St Peter (4 miles north-east).

Near you in Farnham Common

In Farnham Common, that means premises near Caldicott School, Khalsa Secondary Academy and Cocksherd Wood, among other places. The nearest railway station is Burnham station, about 2.9 miles south-west of the centre. Other landmarks nearby include Wexham Park Hospital (2.4 miles south-east). Green spaces nearby include Burnham Beeches and Taplow Lake.

Map of Farnham Common © OpenStreetMap contributors
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