Greater London · England
Fire-rated sealant in Golders Green, Greater London
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in Golders Green. Fully insured, ARBOMaster approved and guaranteed for a year.
- Unsealed gaps where pipes and cables go through a wall
- Linear gaps at the head of walls
- Ordinary sealant used where a fire-rated product was needed
Fire rated sealant in Golders Green, done properly
Fire-rated sealant closes the gaps around pipes, cables and frames where they pass through a fire-resisting wall or floor. Each gap is sealed to the product maker’s tested detail for its size and substrate, and we can record what went where. Typical jobs include old fire sealant that has split or come away and gaps left after a refit or conversion, across service penetrations, door frames and linear gaps.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. In Golders Green, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Location
- Golders Green (NW11, NW2, NW3)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why deal with it now?
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear price for the lot.
Why us?
- We never seal over old sealant
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
- Every job guaranteed for a year
See our cost guide or customer reviews.
How the job changes by surface
Door frames
Behind most architraves is a gap between frame and wall. We seal any open gap to the product’s tested details before the trim goes back.
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified.
Golders Green questions
Is parking a problem for a job in Golders Green?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Do you work for landlords with property near Cricklewood station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Do you seal gaps around fire door frames?
Yes, if the gap is within the product’s tested range. Our work is the gap around the frame and we will tell you if we spot problems with the door.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Can I use normal mastic around a pipe through a fire wall?
No. A gap that needs fire stopping needs a tested fire-rated product.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available.
How long will you be here?
As a guide, most jobs take a few hours for a handful of gaps, and longer for a whole building. Bigger jobs take longer, and we’ll say how long yours will take.
Also near Golders Green
Also in Golders Green
The process
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes from a few hours to a few days, depending on the number of gaps and the access. In Golders 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.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products for your records.
Getting ready for the visit
- Clear items away from the joints we are working on
- Mention any tricky access
- Mention if the joints have been sealed before
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Advice
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Fire risk assessments, which need a qualified assessor
- Issuing a fire rating or certificate for a building
- Walls or floors that weren’t built to resist fire
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
- Linear gaps
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Report cracked or damaged seals as soon as you notice them
- Do not fill fire-stopping gaps with ordinary foam or silicone
- Look in service cupboards and ceiling voids from time to time
- Make resealing part of every contractor’s brief
Avoid covering a sealed gap with anything that is not part of the tested detail. If it needs repair, use the same type of product. Ask us if you’re not sure which product was used.
If a fire risk assessment has flagged a gap, do not leave it for the next one. Have it sealed, then keep the record so you can show it was dealt with.
Workplaces and buildings in Golders Green
There are hotels and other places to stay in and around Golders Green. Hotel work can be planned room by room, with out-of-hours working where needed. 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 work to the specification you’re given, installing the product to its tested details.
Golders Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For buildings such as Church of St Alban the Martyr, service openings in its walls need the right fire-rated sealant, as in any building.
Golders Green is about 1 mile north of West Hampstead, in Greater London. Golders Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Greater London, we cover 764 places, and Golders Green is one of them. London is on our list too, about 7 miles from Golders Green.
Work in NW11, NW2 and NW3 is quoted and booked the same way as anywhere else. Whether your property is on Nant Road, Hoop Lane and Park Avenue or a nearby road, our applicators can take on the job. If you are just outside Golders Green, we cover Temple Fortune (1 mile north), Childs Hill (1 mile south), North End (1 mile south-east), Hampstead Garden Suburb (1 mile north-east) and Vale of Health (1 mile south-east). Within a short drive, we also cover London (7 miles south-east), City of Westminster (5 miles south-east), Marylebone (4 miles south-east), Kensington (5 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles south-east).
What’s near Golders Green
In Golders Green, that means homes and buildings near Childs Hill Park, The King Alfred School and The Old Bull and Bush pub and the streets around them. The nearest railway station is Cricklewood station, about 1.2 miles south-west of the centre. Other landmarks nearby include Kenwood House (1.3 miles east) and Brent Cross Shopping Centre (1.1 miles west). Green spaces nearby include Parliament Hill and Darland's Lake.
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Common problems we fix in Golders Green
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it isn’t installed as tested. Rushed fire stopping is common.
People normally contact us after spotting something like this:
- Gaps around pipes and cables through fire-resisting walls
- Seals cut through by electricians, plumbers or data installers
- Ordinary sealant used where a fire-rated product was needed
- Door frames with gaps between frame and wall
Schools such as Rimon Jewish Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
What your quote should include
- Whether you can choose the colour
- What product goes in the joint
- What preparation is included
- Whether they’re fully insured