Kent · England
Fire-rated sealant in Longfield, Kent
Problem with your fire-stopping gaps in Longfield? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Gaps flagged on a fire risk assessment
- Seals cut through by electricians, plumbers or data installers
- Open joints along the top of partitions
Fire rated sealant in Longfield, done properly
A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. We check the size and the substrate before choosing the product, then the sealant goes in to the depth the product’s details set. We work on flats & HMOs, door frames and service penetrations, and common reasons people get in touch are old fire sealant that has split or come away and damaged fire sealant left by other trades.
For a small place like Longfield, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.
Every job is covered by a 12-month guarantee.
- Location
- Longfield (DA3)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Fire rated sealant in Longfield: local notes
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 are given, installing the product to its tested details.
For site and facilities teams at buildings such as Longfield Academy, fire-stopping around service openings should be restored whenever new services go in. Community buildings like Church of Saint Mary Magdalene are part of the picture too: gaps around pipes and cables are worth checking after any building work there.
Longfield is about 3 miles south-west of Northfleet, in Kent. We carry out fire rated sealant for householders, landlords and businesses in Longfield. Longfield is one of 922 places in Kent where we work. London is on our list too, around 19 miles away.
Postcode districts we cover here for fire rated sealant: DA3. If you need fire rated sealant at a property on Station Road, Main Road and Ightham Close or anywhere close by, our applicators can take on the job. Close by, we work in Hartley (1 mile south), New Barn (1 mile east), Longfield Hill (1 mile south-east), New Ash Green (2 miles south) and Nash Street (2 miles east). We also work in nearby towns such as Maidstone (13 miles south-east), Dartford (5 miles north-west), Sevenoaks (10 miles south-west), Gravesend (4 miles north-east), Tonbridge (14 miles south) and Northfleet (3 miles north-east).
Landmarks near Longfield
Around Longfield, our work takes us to homes and buildings near Railway Tavern, Hartley Primary Academy and Rectory Meadow and the streets around them. Longfield has its own railway station: Longfield station. Other landmarks nearby include Darent Valley Hospital (3.3 miles north-west) and Stone Castle (3.4 miles north). Open spaces near Longfield include Sawyers Lake.
Why deal with it now?
Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing when the building is next checked. Where a wall is exposed, as many are in small places like Longfield, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email.
Why book with us
- An ARBOMaster approved applicator
- Homes, businesses and hotels
- Every job guaranteed for a year
- 180+ five-star Google reviews
Take a look at what affects the cost or our reviews.
Aftercare tips
Looking after new joints is easy:
- Flag any open gap you spot round a pipe or cable
- Check whether a sealant can be painted before decorating over it
- Allow for resealing whenever new services are run
- Store the list of sealed gaps with your building paperwork
Let contractors know where fire stopping has been done, and make sure anything they disturb is resealed with a suitable product. Later work is a common cause of damaged fire stopping.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Get it sealed and recorded so the item can be closed.
How the job changes by surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance so residents know what to expect.
Door frames
We deal with the gap around the frame, not the door. The door leaf, its seals and closer need a door specialist.
Work for landlords, hotels and businesses
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Signs you need fire rated sealant in Longfield
Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was tested. We see plenty of fire stopping that was hurried.
Keep an eye out for these signs:
- Gaps left after a refit or conversion
- Door frames with gaps between frame and wall
- Gaps filled with a product that isn’t fire-rated
- Sealant items on a fire risk assessment action list
Rented homes near Longfield station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Comparing quotes
- What product goes in the joint
- When the joint can take water or movement
- How the surfaces are prepared before sealing
- Whether they seal over old material or remove it
What we do, step by step
When we arrive, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before we start. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Somewhere like Longfield needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start with the survey or action list, checking the size and surfaces of every gap.
- We remove any old or unsuitable filler and clean the gap.
- We put in whatever backing or fill the product detail specifies.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Clear items away from the joints we are working on
- Mention any tricky access
- Let us know about parking restrictions
Getting a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we will take it from there.
Advice
Also near Longfield
Other services in Longfield
FAQs for Longfield
Will you come out to Longfield?
Yes. Longfield is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Longfield in your area for fire rated sealant?
Yes. We work across London and the South East, and Longfield is part of that. Just call 0345 464 0079 or email us with a few details of the job.
How long will you be here?
Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Your quote will say how long we expect yours to take.
Can you tell me how many minutes the seal will last?
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.
Can you match the sealant colour?
In most cases you can choose. We will tell you which colours the right product comes in and agree one before any work starts.
Will we have a record of what was sealed?
Yes. You get a list of where we worked and what we used.
Do you do fire sealant around door frames?
Yes. The joint between frame and wall is sealed with a fire-rated sealant following the tested details. The door, its seals and closer are for a door specialist.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.