Greater London · England

Honor Oak Fire Rated Sealant

We cover Honor Oak for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly.

  • Cracked or shrunken fire-rated sealant
  • New service routes left unsealed after building work
  • Gaps where walls meet ceilings or slabs

Fire rated sealant in Honor Oak

How the visit works

We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on how many gaps there are. In a London area like Honor Oak, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. Anything that isn’t fit for the job comes out, and the gap is cleaned.
  3. Where the tested detail needs backing or fill, we fit it.
  4. We apply the fire-rated or intumescent sealant to the specified depth and tool it.
  5. Finally, we list where we worked and what we used, for your records.

Before we arrive

  • Mention any tricky access
  • Mention if the joints have been sealed before
  • Clear items away from the joints we’re working on

Get a quote

For fire rated sealant in Honor Oak, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.

Get a quick quote

Advice

Fire rated sealant in Honor Oak

We often work from an action list drawn up by a fire risk assessor on buildings across Honor Oak. Send us the list or the survey and we’ll quote for the fire-rated sealant work on it. We work on pipe & cable gaps, flats & HMOs and service penetrations, and the jobs we see most are fire seals that have cracked with movement and joints picked up in a fire-stopping survey.

Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Out-of-hours working can be arranged where a building in Honor Oak can’t close.

The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Honor Oak (SE23, SE22, SE4)
Region
Greater London
Cover
A year, on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Last updated
26 October 2026

How we quote for fire rated sealant

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Whether old sealant or filler has to be cut out
  • The type of sealant required
  • The size of the job
  • When we can work, for business premises

Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.

What to tell us for a quote

You do not need to know the technical terms. Just tell us:

  • Where the job is, and your postcode
  • How many joints, rooms or windows are involved
  • The type of property
  • Photos by email, if that’s easy

Every job is quoted individually. Simply call 0345 464 0079 or email us and describe the job and send photos if you have them.

When something else is needed

A few problems are outside what sealant work can do:

  • Construction that does not provide fire resistance on its own
  • Assessing a building’s fire safety
  • Fire doors that need new seals, closers or hardware

If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.

Where we work in Honor Oak

  • Flats & HMOs
  • Linear gaps
  • Pipe & cable gaps
  • Door frames
  • Service penetrations
  • Plasterboard & masonry

When to call us in Honor Oak

A lot of fire stopping is out of sight: in ceiling voids, service risers and behind boxing. Out of view, damage sits unnoticed until someone inspects.

Keep an eye out for these signs:

  • Gaps around pipes and cables through fire-resisting walls
  • Gaps where walls meet ceilings or slabs
  • Gaps left after a refit or conversion
  • Open gaps behind door architraves

Schools such as St Francesca Cabrini Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.

Questions to ask before you book

  • What the cure time is
  • How the joint is cleaned and prepared
  • Are they insured?
  • What the quote includes, VAT included or not

How to choose a mastic man

Honor Oak questions

Is parking an issue for fire rated sealant in Honor Oak?

Parking in Honor Oak, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.

I let a flat near Honor Oak Park station. Can you help?

Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.

Will you assess my building’s fire safety?

No. We follow the requirements from your assessor, designer or building control, and apply each product to its tested details.

Is it worth trying it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

What fire rating will the seal have?

Ratings and certification sit with the product’s test evidence and whoever specified the work. We apply the specified product to the manufacturer’s details and list the locations and products for you.

How long does the job take?

Most jobs take from a few hours to a few days, depending on the number of gaps and the access, including the preparation. We will confirm how long when we quote.

Can I use normal mastic around a pipe through a fire wall?

No. Where a fire-rated seal is needed, it has to be a product tested for that use fitted to the maker’s details.

Does someone need to be in?

We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.

Looking after it afterwards

Looking after new joints is easy:

  • Look in service cupboards and ceiling voids from time to time
  • Ask every contractor to reseal any fire stopping they disturb
  • Include fire stopping when you schedule refits
  • File the fire-stopping record where your assessor can find it

Tell other trades that the gaps have been sealed, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.

A flagged gap shouldn’t wait for the next assessment. Have it sealed, then keep the record.

For landlords and businesses

We also work for property managers and facilities teams in Honor Oak and across Greater London. Several sites can be quoted together, and we are fully insured.

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

Fire rated sealant around Honor Oak

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange.

As a London address, Honor Oak can be tricky for parking: let us know about parking bays, permits or a driveway. For buildings such as Church of St Augustine, gaps around pipes and cables are worth checking after any building work there.

Honor Oak is about 2 miles south-west of New Cross, in Greater London. We carry out fire rated sealant for homes and businesses in Honor Oak and the surrounding area. Our area takes in 764 places across Greater London, from the larger towns to small villages.

Jobs for fire rated sealant in SE23, SE22 and SE4 works the same way as everywhere else we cover. Streets in the area include Rye Road, Ewart Road and Bovill Road, and we cover them all. Neighbouring places we cover for fire rated sealant include Forest Hill (1 mile south), Brockley (1 mile east), Crofton Park (1 mile east), Nunhead (1 mile north) and Telegraph Hill (1 mile north). We also work in nearby towns such as London (4 miles north-west), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (6 miles north-west) and Shoreditch (5 miles north).

Landmarks near Honor Oak

Around Honor Oak, our work takes us to homes and buildings near Allenby Tutorial Trust, Peckham Rye and Herne Tavern and the streets around them. Honor Oak has its own railway station: Honor Oak Park station. Well-known places in the area include Lewisham Shopping Centre (1.9 miles north-east) and Horniman Museum and Gardens (0.8 miles south-west). The countryside around Honor Oak includes One Tree Hill and Battersea Park Lake.

Map of Honor Oak © OpenStreetMap contributors

Different surfaces, different methods

Service penetrations

Different services need different details: metal pipes, cables and plastic pipes are not treated the same. We follow the manufacturer’s tested detail for each.

Masonry and concrete

Preparation counts on brick, block and concrete. The gap is cleaned and backed where required.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job