Greater London · England
Fire Rated Sealant in Pratt's Bottom
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Pratt's Bottom and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps around pipes and cables through fire-resisting walls
- Gaps filled with a product that is not fire-rated
- Linear gaps at the head of walls
Pratt's Bottom: your questions answered
Is parking an issue for fire rated sealant in Pratt's Bottom?
Parking in Pratt's Bottom, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Can you do fire rated sealant in Pratt's Bottom?
Yes, Pratt's Bottom is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can you tell me which gaps need fire stopping?
No, assessment is not something we do. Once you have a specification or action list from your assessor or designer, we will quote for the sealant work on it.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Is there a guarantee?
Yes. Every job comes with a one-year guarantee.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
About our fire rated sealant in Pratt's Bottom
Bigger jobs can be worked through in stages, flat by flat or floor by floor, with each location and product recorded. That record is useful for your files and for whoever looks at the building next. Typical jobs include unsealed gaps around fire door frames and gaps filled with a product that isn’t fire-rated, across service penetrations, door frames and pipe & cable gaps.
In London’s blocks of flats, service risers and common parts have pipes and cables passing through walls and floors. For managing agents and building owners in Pratt's Bottom, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
Every job is covered by our 12-month guarantee, wherever you are in Greater London.
- Place
- Pratt's Bottom (BR6, TN14)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Pratt's Bottom
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
How the job changes by surface
Flats and HMOs
Conversions normally leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and record where they are.
Plasterboard walls
We check that the board around the gap is sound. Loose material is removed so the sealant has a firm edge.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on how many gaps there are, and the area is left clean. In Pratt's Bottom, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products.
Getting ready for the visit
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Getting a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
Advice
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Commercial buildings in Pratt's Bottom
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’re given, installing the product to its tested details. Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed.
Schools such as Pratts Bottom Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment. For buildings such as All Souls' Church, gaps around pipes and cables are worth checking after any building work there.
Pratt's Bottom is about 3 miles south of Orpington, in Greater London. Anywhere in BR6, our applicators can take on fire rated sealant. Our Greater London coverage runs to 764 places, Pratt's Bottom among them. Our London page covers work nearby, about 14 miles away.
All of BR6 and TN14 is covered for fire rated sealant. That includes homes and businesses on Orchard Road, Runciman Close and Downs View Close and the roads around them. Other places close to Pratt's Bottom include Halstead (1 mile south-east), Chelsfield (1 mile north-east), Bopeep (1 mile north-east), Badgers Mount (1 mile east) and Maypole (1 mile north-east). Further out, we also cover London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (13 miles north-west), Orpington (3 miles north) and Wimbledon (15 miles west).
Near you in Pratt's Bottom
Locally, jobs take us to homes and businesses close to Hewitt's Chalk Bank and Green Street Green Primary School and the streets around them. Pratt's Bottom’s nearest station is Knockholt station, roughly 0.8 miles east of the centre. Well-known places in the area include Crofton Roman Villa (2.4 miles north-west) and Lullingstone Castle (3.8 miles east). For a walk, there’s Betsom's Hill and Downe Bank Nature Reserve.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Take pictures of fire stopping before ceilings or boxing go back
- Ask every contractor to reseal any fire stopping they disturb
- Include fire stopping when you schedule refits
- Look in service cupboards and ceiling voids from time to time
Don’t add foam, filler or ordinary sealant over a fire seal. If it needs repair, use the same type of product. Ask us if you’re not sure which product was used.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is normally a straightforward job.
Places near Pratt's Bottom
More services for Pratt's Bottom
Why act early in Pratt's Bottom
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 work involved is often modest. In a flat in Pratt's Bottom, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why us?
- 20+ years of sealant experience
- Anti-fungal silicone where joints get wet
- 4.9 on Google from 180+ five-star reviews
- We never seal over old sealant
What we’re called out for in Pratt's Bottom
Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
Common reasons people contact us are:
- New service routes left unsealed after building work
- Unsealed gaps around fire door frames
- Old fire sealant that has split or come away
- Ordinary sealant used where a fire-rated product was needed
Pratt's Bottom is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What your quote should include
- Whether you can choose the colour
- Whether they seal over old material or remove it
- What guarantee comes with the work
- What the quote includes, VAT included or not