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

Fire Stopping in East Stratton

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in East Stratton. Send photos or drawings for a fixed quote.

  • Old intumescent sealant that has split away
  • Non-fire-rated filler around services
  • Service penetrations left open after M&E works
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping for businesses in East Stratton

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

About our fire stopping in East Stratton

A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, often unnoticed. We close the openings listed on your schedule, using the specified sealant and detail. We work on joints between fire-resisting walls and floors, pipe penetrations and service gaps in risers, and what we’re called in for most is seals disturbed by maintenance and left open and unsealed joints where partitions meet the slab. Searching for sealant specialists in East Stratton? Mastic Doctor has worked for contractors, FMs and building owners since 2005.

For a smaller site near East Stratton, we plan to do all the penetrations in one go, with the specification and photographs sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

A 12-month guarantee applies to all our work. If an installation problem shows up, call 01277 525 020 or use the quote form and we will arrange a return visit.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
East Stratton (SO21)
Region
Hampshire
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

Commercial clients in East Stratton

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.

What happens if it’s left?

An improvised seal can look finished while offering no tested performance. Correcting it means cutting it out and starting again with the specified product, and doing it once, properly, is cheaper. For buildings around smaller places like East Stratton, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Why clients in East Stratton choose us

  • Over 20 years of commercial sealing
  • One phone line for London, the South East and Scotland
  • 12-month guarantee on workmanship
  • Public liability insurance in place

Read our cost guide and our accreditations.

Looking after the joints

Problems stay small when the joints are checked regularly. Specifically:

  • Agree the fire-stopping specification before services go in
  • Check with the data sheet before painting over fire sealant
  • Brief every trade that openings they make must be sealed
  • Report damaged or disturbed seals as soon as they’re spotted

Never top up a fire seal with foam, ordinary silicone or filler. A repair should use the original product, installed the same way unless the designer specifies otherwise.

Keep a register of where seals are and what they are made of. When a new service goes through, everyone knows which product and detail to match.

FAQs: East Stratton

Is East Stratton off your patch?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.

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

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.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards.

What’s the quickest route to a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

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

No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

Is colour matching possible?

It depends on the product specified. Some ranges are wide, others limited, so the available colours are confirmed with the quote.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

Fire stopping around East Stratton: how the place shapes the job

In England, Approved Document B covers fire stopping of openings and penetrations. 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. Either way, we install the specified product to its tested detail. East Stratton is about 54 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.

For a building such as Church of All Saints, new heating or data runs are the usual reason penetrations need sealing. Around East Stratton, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product.

East Stratton is about 8 miles north-east of Winchester, in Hampshire. If you are looking for fire stopping in East Stratton, we can help, as we do across Hampshire. East Stratton is one of 723 places in Hampshire on our list. Sites around Southampton have their own page, about 18 miles away.

Work on service penetrations is covered throughout SO21, whatever the building. We cover commercial and managed buildings on Stratton Close, Stratton Lane and Baring Close and the roads nearby. Close to East Stratton, our area also takes in Micheldever (2 miles west), Northbrook (2 miles west), Totford (2 miles south-east), Northington (2 miles south-east) and Brown Candover (2 miles east). Further afield, our area takes in Basingstoke (9 miles north-east), Winchester (8 miles south-west), Eastleigh (14 miles south), Andover (12 miles west), Chandler's Ford (14 miles south-west) and Alton (11 miles east).

Near you in East Stratton

Recent enquiries here include premises near The Northbrook Arms and the streets around them. East Stratton’s nearest station is Micheldever station, about 2.5 miles north-west of the centre. A little further out are Barton Castle (4.9 miles east).

Map of East Stratton © OpenStreetMap contributors

What we can’t put right

Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be any of the following:

  • Writing the fire-stopping specification
  • Fire risk assessments, a job for a competent assessor
  • Signing off or certifying a building’s fire stopping

If in doubt, call 01277 525 020 or use the quote form and we will say what we think before you book.

What we seal

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

Our process

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If others near East Stratton need work, visits can be combined. You will have a fixed quote before work starts.

  1. First we go through the drawings, schedule or specification for the seals.
  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. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • Send any specification or drawings in advance
  • Tell us which areas need to stay in use
  • Move anything stored against the joints

Request a quote

For a fixed quote, phone 01277 525 020 or email us with the site address and an outline of the work. Our quote form is another easy route.

Get a price

Read more

Cost factors for service penetrations

The price varies from site to site. It mainly depends on:

  • Working within restricted access windows
  • Any access equipment needed
  • Quantities, in metres or numbers
  • Backing rod, priming and other preparation

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

What to include in your enquiry

It doesn’t need to be a full survey. A few details are enough to get going:

  • Photos of the joints, close up and from further back
  • Anything awkward about access or site hours
  • Drawings or a marked-up plan, if available
  • Asbestos survey details if the building is older

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. The easiest way is to ring 01277 525 020 or use the quote form.

Accreditations

Trusted. Accredited. Insured.