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

Fire stopping in Paddington

Looking for fire stopping in Paddington? It’s simple: send details, get a quote, we seal, guaranteed.

  • Fire stopping installed outside its tested range
  • Service penetrations left open after M&E works
  • Non-fire-rated filler around services
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping for Paddington sites

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

Fire stopping in Paddington, done properly

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. If the detail calls for something other than sealant, we say so rather than force sealant into it. We work on service gaps in risers, linear gaps at wall heads and pipe penetrations, and what we’re called in for most is damaged fire seals in risers and voids and openings found when ceilings come down for a refit. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Paddington, preparation and product choice get the time they need.

After a fit-out or new cabling in a London building, risers and ceiling voids are where open service gaps tend to be found. If sealant is the specified product we fit it to its tested detail, and if the detail needs something else, you’ll hear it from us.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Location
Paddington (W2, W1H, W1U)
Wider area
Greater London
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How the job changes by surface

Metal pipes

Heat travels along metal pipework, and the tested detail may ask for insulation beyond the wall. We follow whatever the detail requires and flag anything we can’t match.

Drylining partitions

Plasterboard partitions are tested as a specific construction. The sealant detail has to be tested in that wall type, with the stated board layers before sealing.

How a job runs

Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Most London premises stay occupied while we are on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  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. Unsuitable material is removed and the opening cleaned.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Preparing the site

  • Warn occupants and staff about the work
  • Tell us what induction or permit system the site runs
  • Share the asbestos register for older buildings

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Get a quick quote

Advice

What affects the price in Paddington

A fixed quote reflects the actual work. It allows for:

  • How much existing material needs removing
  • Which sealant the job calls for
  • Distance, for remote addresses
  • Backing rod, priming and other preparation

A quote for 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. Send us:

  • When you need the work done
  • The product your specification calls for
  • Drawings or a marked-up plan, if available
  • Asbestos survey details if the building is older

For a fixed quote, ring 01277 525 020 or send photos by email. Our quote form is another easy route.

When to bring in a specialist

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

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. For that reason, many FMs and contractors use a sealant specialist from the outset.

Honest limits

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Large openings beyond what any sealant detail covers
  • Fire risk assessments, a job for a competent assessor
  • Gaps in walls that were never built as compartment walls

If you’re not sure, just call the office on 01277 525 020 or use the quote form and we’ll give you a straight answer.

Joints and surfaces we work on

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

Paddington: questions and answers

What happens to BS 476 references for fire stopping in Paddington?

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. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Can you cope with the access rules in a London building?

Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it

How long before the joints can be used?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Will your applicators have CSCS cards?

Yes. We use CSCS-carded applicators, which many sites require.

What do you charge?

Every job gets its own fixed quote. For yours, speak to us on 01277 525 020 or email us with a description of the work.

Will you come and look before quoting?

That depends on the size and complexity of the job. Simple work can often be priced from photos, while larger or less clear jobs get a site visit first.

How long do sealant joints last?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

Fire-rated sealing for Paddington buildings

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. Either way, we install the specified product to its tested detail. A good number of hotels sit less than 2 miles from Paddington. In hotels, bedroom and corridor walls are typically fire-resisting, so services added in a refit need sealing with the specified product.

Shop fits on retail sites such as Brompton Cross District Shopping Centre. (1.6 miles south of Paddington) can bring new services through fire-resisting walls between units, to be sealed with the specified product. Campus buildings at universities such as Imperial College London (less than half a mile north of Paddington) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Large healthcare estates like St Mary's Hospital (under half a mile west of Paddington) change their services often, so penetration seals are worth checking after M&E work.

Paddington is about 1 mile west of City of Westminster, in Greater London. Across the W2 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Paddington is one of 764 places we cover in Greater London for service penetrations.

Work on service penetrations is covered throughout W2, W1H and W1U, for business premises of every kind. Buildings on Harrow Road, Craven Road and Harbet Road are within our area. With the A5 and A40 nearby, Paddington is easy to get to with materials and equipment. If your building is just outside Paddington, we cover Paddington Green (1 mile north-west), Hyde Park Estate (1 mile south-east), Connaught Village (1 mile south-east), Tyburn (1 mile south-east) and Little Venice (1 mile north-west). Bigger towns within reach include London (4 miles east), Shoreditch (4 miles east), Walthamstow (8 miles north-east), Hoxton (4 miles east), Whitechapel (4 miles east) and Ruislip (11 miles west).

What’s near Paddington

Around Paddington, our work takes us to commercial buildings near Royal Society of Medicine Library, Fountains Abbey pub and Royal Parks of London, among other places. Other local landmarks include North Westminster Community School (under half a mile north-east) and Hampden Gurney CofE Primary School (under half a mile east). Paddington has its own railway station: London Paddington station. Nearby you will also find Harrods (1.3 miles south) and London Toy & Model Museum (0.5 miles south-west). Open spaces near Paddington include Greville Place nature reserve and The Long Water.

Map of Paddington © OpenStreetMap contributors

Why act early in Paddington

Open service penetrations matter on ordinary days, not just in a fire: smoke, noise and draughts pass through them every day. Sealing them to the specified detail deals with the fire risk first. Failed sealant in a building in Paddington can quickly affect neighbours, tenants or the floor below: water travels through shared structures, and a small leak becomes a dispute between occupiers. Dealing with it early is simpler for everyone.

Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Why us?

  • CHAS accredited contractor
  • Old sealant cut out, never sealed over
  • One phone line for London, the South East and Scotland
  • Work carried out by CSCS-carded applicators

Take a look at how commercial sealant jobs are priced and our accreditations.

Accreditations

Trusted. Accredited. Insured.