Southampton · England
Swaythling Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in Swaythling. Fully insured, ARBOMaster approved and guaranteed for a year.
- Fire seals that have cracked with movement
- Fire stopping disturbed by later work
- Holes left by a change of layout
Swaythling: your questions answered
Will you come out to Swaythling?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for hotels and guest houses in Swaythling?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What does intumescent mean?
Intumescent means it swells when heated to help seal the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
How long will you be here?
A typical job takes 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.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
How do I get a quote for fire rated sealant in Swaythling?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Fire rated sealant in Swaythling, done properly
Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it. If you are dealing with linear gaps at the head of walls and fire seals that have cracked with movement, we can put it right.
If you run a pub, café, guest house or shop in or near Swaythling, the washrooms and kitchen need the same attention as a big site.
You get a 12-month guarantee, the same in Swaythling as everywhere else we work.
- Location
- Swaythling (SO16, SO18, SO17)
- Region
- Southampton
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Also near Swaythling
More services for Swaythling
Looking after it afterwards
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
- Never patch a fire seal with standard sealant
- Check whether a sealant can be painted before decorating over it
Any fire seal that is cut or drilled needs resealing to its tested detail. New services through a sealed wall should include fire stopping in the plan.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
Workplaces and buildings in Swaythling
In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, and gaps around services are often picked up there. We work to the specification you’re given, installing the product to its tested details. There are hotels and other places to stay in and around Swaythling. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
For landlords with property near Swaythling station, any gap left by new services in shared walls should be closed with a fire-rated product. If you look after a church, hall or community building such as St. Mary's Church, service openings in its walls need the right fire-rated sealant, as in any building.
Swaythling is about 2 miles north of Southampton, in Southampton. Every kind of property in Swaythling is covered for fire rated sealant, old or new, large or small. Every job comes with our 12-month guarantee. Our Southampton coverage runs to 40 places, and Swaythling is one of them.
Every address in SO16, SO18 and SO17 is within our area for fire rated sealant, from the main roads to the quietest streets. Streets in the area include High Road, Wide Lane and Lilac Road, and we cover them all. If you’re just outside Swaythling, we cover Bassett Green (1 mile west), Mansbridge (1 mile east), North Stoneham (1 mile north), Portswood (1 mile south-west) and St Denys (1 mile south). Within a short drive, we also cover Shirley (3 miles south-west), Regents Park (3 miles south-west), Thornhill (3 miles south-east), Itchen (3 miles south), Sholing (3 miles south) and Maybush (3 miles west).
Near you in Swaythling
Locally, jobs take us to homes and businesses close to Saint George Catholic Voluntary Aided College Southampton, Riverside Park and Saint George Catholic Voluntary Aided College Southampton, among other places. Swaythling has its own railway station: Swaythling station. Well-known places in the area include Marlands Shopping Centre (2.6 miles south-west) and Bitterne Local History Society Heritage And Research Centre (1.9 miles south). The countryside around Swaythling includes Netley Common.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of gaps, and longer for a whole building. For a job in Swaythling, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed and the faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products for your records.
Before we arrive
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
How to get a quote
We quote each job on its own. Just phone 0345 464 0079 or email us with the details.
Related advice
How the job changes by surface
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified.
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
What we’re called out for in Swaythling
Sealant applied too thin, without the backing its detail needs, or onto dust won’t perform as it was tested. We see plenty of fire stopping that was hurried, especially where it was squeezed in at the end of a project.
The most common problems we see are:
- Door frames with gaps between frame and wall
- Old fire sealant that has split or come away
- New service routes left unsealed after building work
- Gaps flagged on a fire risk assessment
For site and facilities teams at buildings such as Mansbridge Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Questions to ask before you book
- Whether all the old sealant comes out first
- How much experience the applicator has
- What the quote includes, VAT included or not
- What product goes in the joint
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
For anyone letting property in or around Swaythling, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Why act early in Swaythling
Sealant isn’t the fix for every opening. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We’ll say so if a gap needs something other than sealant. In a smaller place like Swaythling, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What you get with us
- Full insurance on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- An ARBOMaster approved applicator
See our cost guide and our reviews.
Quotes for fire rated sealant in Swaythling
Your quote is based on your job. We take into account:
- Whether the work is at height
- The number and length of the joints
- Any mould that needs treating
- The number of rooms or windows
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
What we need to know
To make quoting easier, let us know:
- Where the property is
- The problem you’ve noticed
- Pictures of the joints, sent by email
- The rough size of the job
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
