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

Fire stopping in Peartree Green

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Peartree Green. Send details for a fixed quote.

  • Hidden openings found during inspections
  • Fire stopping installed outside its tested range
  • Service penetrations left open after M&E works
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping for businesses in Peartree Green

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Maintenance after handover

After handover, these steps help:

  • Treat an open penetration as a priority repair
  • Get seals inspected before ceilings and boxing close
  • File the specified details where the next contractor can find them
  • Brief every trade that openings they make must be sealed

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Look for cracks, unsealed new cables and gaps that have been enlarged and get them dealt with.

Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate.

How we handle fire stopping in Peartree Green

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. If the detail calls for something other than sealant, we say so rather than force sealant into it. The enquiries we see most involve improvised or mixed-product fire seals and head-of-wall gaps with no fire seal, on service gaps in risers, joints between fire-resisting walls and floors and cable penetrations. A single leaking joint is often how a building in Peartree Green first comes to us: we look at the rest while we are there and tell you what we find.

In places the size of Peartree Green, fire-resisting walls and floors are found in schools, care homes, health centres and mixed-use buildings. Around those penetrations, fire-rated sealant is installed if specified, with depth, backing and gap all as tested.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or email a schedule or drawings and we’ll come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Peartree Green (SO19, SO14)
Region
Southampton
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

Honest limits

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:

  • Large openings beyond what any sealant detail covers
  • Issuing fire ratings or certificates for seals
  • Fire doors, dampers or other fire safety equipment

If in doubt, call 01277 525 020 or send details through our quote form and we’ll say what we think before you book.

Surfaces we seal

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

FAQs: Peartree Green

Is Peartree Green too far out for you?

Not at all. Peartree Green is within our area. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.

Do you take on work at healthcare sites like Royal South Hants Hospital?

Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.

Which standards are fire seals tested to?

In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. EI 60 means integrity and insulation for 60 minutes in the tested arrangement and the installation has to match the test.

How do I request a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.

How long will the new sealant last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Is fire stopping in Scotland covered by different guidance?

Our work covers Greater London, the South East and every Scottish council area. Scotland’s non-domestic Technical Handbook, clause 2.1.14, expects service penetrations to be fire stopped to at least the wall or floor’s fire resistance, using products tested for their end use.

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.

How the quote is worked out

Each job is priced on its own details. The things that drive the figure:

  • Access and working height
  • Phasing around occupants
  • Location, for remote and island sites
  • Joint width, depth and condition

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

Sending details for a quote

We can often quote from photographs and a few details. Please tell us:

  • Any specification or named product
  • Clear photographs of the problem areas
  • Where the site is, with the postcode
  • Whether an asbestos survey exists

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or send details through our quote form.

How the job changes by surface

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.

Risers and ceiling voids

Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance.

Where services cross fire walls in Peartree Green

Peartree Green has seven care or nursing homes no more than 2 miles away. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal. We install fire-rated sealant to the tested detail where it is specified. A 2-mile radius around Peartree Green takes in a good number of hotels. In hotels, bedroom and corridor walls are usually fire-resisting, so services added in a refit need sealing with the specified product.

Tenant changes at centres like Marlands Shopping Centre (1.3 miles west of Peartree Green) often mean new services through walls between units. Theatres, wards and plant rooms at sites like Royal South Hants Hospital (1.1 miles north-west of Peartree Green) all have compartment walls crossed by services. For an estates team at a campus like Solent University, 1.1 miles west of Peartree Green, summer M&E works are usually followed by a round of penetration sealing.

Peartree Green is about 1 mile south-east of Southampton, in Southampton. We cover commercial sites throughout Peartree Green. Our Southampton coverage takes in 30 places, from busy centres to rural villages.

Anyone looking for fire stopping in SO19 and SO14 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on Sea Road, Hazel Road and Ailsa Lane are within our area. Sites close to Peartree Green are covered too, including Itchen (1 mile south-east), Northam (1 mile north), St Mary's (1 mile west), Bitterne (1 mile north-east) and Sholing (1 mile east). Bigger towns within reach include Shirley (3 miles north-west), Regents Park (3 miles west), Maybush (4 miles north-west), Coxford (4 miles north-west), Lordswood (4 miles north-west) and Millbrook (3 miles west).

Around Peartree Green

Around Peartree Green, our work takes us to commercial buildings near Woolston School, Houndwell Park and Inspire Enterprise Academy, among other places. There’s a railway station in Peartree Green itself: Woolston station. A little further out are Netley Castle (2 miles south) and Marlands Shopping Centre (1.3 miles west). Not far away are Netley Common.

Map of Peartree Green © OpenStreetMap contributors

What happens if it’s left?

An improvised seal can look finished while offering no tested performance. The fix is to remove it and reinstall to the detail, so it makes sense to get it right first time. In a smaller place such as Peartree Green, getting a contractor back for a second visit takes time, so it’s worth dealing with every failing joint at once.

A quote for service penetrations depends on quantities, condition and access, plus any specification you are working to. Ask us for a fixed quote.

Why us?

  • A fixed quote before work starts
  • Workmanship guaranteed for 12 months
  • Sealing commercial buildings since 2005
  • Constructionline member

Take a look at what affects the cost or how we’re accredited.

How a job runs

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. For a job in Peartree Green, the main thing is a clear picture of the work, so send photographs of each area. A fixed quote follows.

  1. The specification and schedule come first, so we know which details apply.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out first.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Before we start on site

  • Clear stock, furniture or equipment away from the joints
  • Flag any permit to work we will need
  • Tell us your opening times and when work is allowed

Request a quote

To get a fixed quote, phone 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. Our quote form is another easy route.

Ask for a quote

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