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

Peckham fire stopping

Fire stopping for Peckham, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Unsealed joints where partitions meet the slab
  • Fire-rated sealant that has cracked or shrunk back
  • Snag lists that include open service penetrations
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
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
CHAS & Constructionline
£5m public liability

Need fire stopping in Peckham?

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

About our fire stopping in Peckham

Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it. With no specification in place, the first step sits with your designer or fire engineer, not with us. We work on pipe penetrations, small duct penetrations where the tested detail allows and linear gaps at wall heads, and what we’re called in for most is fire seals cut back for extra cables and never reinstated and fire stopping installed outside its tested range. Whether you call it commercial sealant work, mastic application or joint sealing, in Peckham it comes down to the same thing: the right product in a properly prepared joint.

In a London area such as Peckham, buildings are refitted often, and every new cable, pipe or duct through a fire-resisting wall or floor leaves a gap. Each service penetration gets fire-rated or intumescent sealant if that’s what is specified, laid to the product’s tested arrangement.

The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Peckham (SE15, SE14, SE5)
Region
Greater London
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

Surface by surface

Linear joints

Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in, with no gaps along the run.

Drylining partitions

Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range.

Signs you need fire stopping in Peckham

Plenty of openings were simply never closed because they sat out of sight above a ceiling or inside a riser. They come to light during inspections, refits or when another trade lifts a tile.

Things that normally lead to an enquiry:

  • Fire-stopping items raised at inspection or handover
  • Damaged fire seals in risers and voids
  • Fire-rated sealant that has cracked or shrunk back
  • Improvised or mixed-product fire seals

For a unit at a centre such as Cantium Retail Park (0.9 miles north of Peckham), penetration seals are worth checking after each shop fit.

Before you book anyone

  • Whether their applicators hold CSCS cards
  • How the existing material will be dealt with
  • How the joint faces will be prepared and primed
  • What the guarantee covers, and for how long

Questions to ask before you appoint anyone

Peckham: questions and answers

Do you cover business parks and estates near Peckham, such as Astbury Business Park?

Yes. Estates, retail parks and business parks around Peckham, Astbury Business Park among them, are all within reach. Photos and a short description are enough for a first look.

Can you work on a hospital site such as Maudsley Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can the sealant be colour-matched?

Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.

Do you hold third-party fire-stopping installer certification?

No, and we’d rather be clear about that. Third-party schemes aren’t a legal requirement, but many clients and main contractors ask for them, so it’s worth checking what your contract says. If it doesn’t require one, we can install the specified fire-rated sealant to its tested detail.

Can you work to our specification?

Yes. Include it with the drawings when you ask for a quote, and we will price the work to it.

Does the weather affect the work?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

Do you cover Peckham?

Yes. We cover Peckham. For a quote, call 01277 525 020 or email the details over.

What affects the price in Peckham

What shapes the price:

  • The site’s rules and procedures
  • How accessible the joints are
  • Phasing around occupants
  • Removal of failed or old sealant

Pricing service penetrations depends on quantities, condition and access, and any specification that applies. Call for a quote.

Sending details for a quote

For an accurate fixed quote, we need a clear picture of the site. Useful things to include:

  • Specification clauses that apply
  • The asbestos register, for older buildings
  • What the building is and how it’s used
  • Where the site is, with the postcode

A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or speak to us on 01277 525 020 or email a schedule or drawings to discuss it first.

Compartment walls and floors in Peckham

For England, the fire stopping of penetrations is dealt with in Approved Document B. 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. Our part stays the same: the specified product, installed to its tested detail. London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. We seal to the specification and the product’s tested detail, working within the building’s permits.

At a university such as King's College London, which lies west of Peckham, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work. Colleges such as Christ the King: Aquinas Sixth Form College, 1 mile to the east of Peckham, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.

Peckham is about 2 miles south-east of London, in Greater London. Looking for fire stopping in Peckham? We can help. Our Greater London coverage takes in 764 places, from busy centres to rural villages.

We cover the SE15, SE14 and SE5 postcode districts. For a building on Rye Lane, Relf Road and Mona Road or nearby, we can quote for service penetrations. With the A2215 nearby, Peckham is straightforward for us to reach. Close to Peckham, our area also takes in Nunhead (1 mile south-east), Telegraph Hill (1 mile south-east), South Bermondsey (1 mile north), Surrey Canal (1 mile north-east) and East Dulwich (1 mile south-west). Nearby towns on our patch include City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (6 miles west), St Pancras (4 miles north-west), Shoreditch (4 miles north) and Walthamstow (8 miles north).

Near you in Peckham

We work on buildings around Brimmington Park, The St Thomas the Apostle College and The Kentish Drovers pub and the streets around them. There’s a railway station in Peckham itself: Queens Road Peckham station. Nearby you’ll also find Peckham Platform (less than half a mile north-west) and Southwark Adult Education Institute (under half a mile east). Open spaces near Peckham include St. James's Park Lake and Knight's Hill.

Map of Peckham © OpenStreetMap contributors

Doing it in-house

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

From enquiry to sign-off

Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. All of Greater London is in the ULEZ, and kerbside space in Peckham can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  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. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Before we start on site

  • Share your working hours and any access restrictions
  • Confirm the product named in the specification
  • Let us know about inductions and permits

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call 01277 525 020 or send photos by email with what you know.

Ask for a quote

Related advice

Honest limits

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Issuing fire ratings or certificates for seals
  • Gaps in walls that were never built as compartment walls
  • Designing or specifying fire stopping, which sits with the designer or fire engineer

If in doubt, call the office on 01277 525 020 or email drawings and photos and we’ll say what we think before you book.

Where we work in Peckham

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

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