Greater London · England

Fire Rated Sealant in Rowley Green

Fire rated sealant across Rowley Green and nearby, with old sealant always removed completely and a 12-month guarantee.

  • Gaps flagged on a fire risk assessment
  • Damaged fire sealant left by other trades
  • Linear gaps at the head of walls

Fire rated sealant for Rowley Green homes and businesses

About our fire rated sealant in Rowley Green

Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through. Common call-outs are for door frames with gaps between frame and wall and damaged fire sealant left by other trades, on pipe & cable gaps, door frames and flats & HMOs.

London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, 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 Rowley Green cannot close.

Each job carries a 12-month guarantee.

Where
Rowley Green (EN5)
Wider area
Greater London
Cover
A year, on every job
Quote
A clear quote up front
Phone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

For landlords and businesses

If you manage several properties in or around Rowley Green, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.

From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

Your questions about fire rated sealant in Rowley Green

Is parking a problem for a job in Rowley Green?

London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.

Do you cover Rowley Green for fire rated sealant?

Yes, Rowley Green is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.

What should I tell you?

Tell us what needs doing and where, plus photos if you have them. If we need more, we’ll ask.

Can new sealant go over the old?

No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.

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.

Are you an approved applicator?

Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.

How much does fire rated sealant cost in Rowley Green?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.

Is it messy?

Tidy work is part of the job. Nearby surfaces are protected.

Should I try it myself first?

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

How the job changes by surface

Service penetrations

A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each.

Flats and HMOs

In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We work through the gaps on your assessment, flat by flat if needed.

The process

At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a handful of gaps, and longer for a whole building, depending on the amount of work. In Rowley Green, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. We remove any old or unsuitable filler and clean the gap.
  3. Backing or fill is fitted where the product’s tested detail calls for it.
  4. The sealant goes in to the depth its detail sets, then it’s tooled off.
  5. Locations and products are noted so you have them on file.

Getting ready for the visit

  • On commercial sites, let us know about site rules
  • Move anything stored near the joints
  • Mention any parking rules near the property

Get a quote

Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.

Get a quick quote

Read more

What we’re called out for in Rowley Green

Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was tested. Rushed fire stopping is common particularly when it was the last job before handover.

Look out for any of the following:

  • Linear gaps at the head of walls
  • Unsealed gaps where pipes and cables go through a wall
  • Cracked or shrunken fire-rated sealant
  • Damaged fire sealant left by other trades

For site and facilities teams at buildings such as Saffron Green Primary School, fire-stopping around service openings should be restored whenever new services go in.

What to look for in a quote

  • Whether all the old sealant comes out first
  • Is VAT in the price?
  • What happens if they find a problem under the old sealant
  • Are they insured?

Our hiring checklist

Why act early in Rowley Green

Items left open on a fire risk assessment tend to come back at the next review. Getting them done and written up means you can show the action was taken. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.

There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.

Why book with us

  • Every job guaranteed for a year
  • We leave the area clean and tidy
  • We never seal over old sealant
  • Homes, businesses and hotels

Take a look at our cost guide and our reviews.

What we can’t put right

A few problems are outside what sealant work can do:

  • Assessing a building’s fire safety
  • Walls or floors that weren’t built to resist fire
  • Certifying a building or signing off its fire safety

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.

Where we work in Rowley Green

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

Commercial buildings in Rowley Green

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.

Rowley Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For landlords with property near Elstree & Borehamwood station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Rowley Green is about 1 mile east of Borehamwood, in Greater London. We carry out fire rated sealant for homes and businesses in Rowley Green and the surrounding area. Rowley Green is one of 764 towns and villages in Greater London where we work for fire rated sealant. There’s also a page for London, about 13 miles away.

Here we cover the EN5 postcode area for fire rated sealant. Other places close to Rowley Green include Arkley (1 mile south-east), Well End (1 mile north-west), Borehamwood (1 mile west), Deacon's Hill (2 miles south-west) and High Barnet (2 miles east). Within a short drive, we also cover London (13 miles south-east), City of Westminster (10 miles south), Marylebone (10 miles south-east), Kensington (11 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).

Landmarks near Rowley Green

Locally, jobs take us to homes and businesses close to Barnet Gate Wood and Elstree University Technical College and the streets around them. The nearest railway station is Elstree & Borehamwood station, about 1.4 miles west. Well-known places in the area include Hilfield Castle (3.8 miles west) and Barnet General Hospital (1.4 miles east). Not far away are Darland's Lake and Rowley Lodge Field.

Map of Rowley Green © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job