Southampton · England
Portswood Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Portswood and across Southampton. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Old fire sealant that has split or come away
- New service routes left unsealed after building work
- Open joints along the top of partitions
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes anything from a few hours to several days, depending on how many gaps there are for a typical job. For a job in Portswood, 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.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- We record what was done and flag anything that needs a different system.
Before we arrive
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we are working on
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
Advice
Fire rated sealant in Portswood
Fire stopping only performs as intended if it’s done to the detail: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over. We are often asked to deal with gaps around pipes and cables through fire-resisting walls and open gaps behind door architraves, on plasterboard & masonry, linear gaps and flats & HMOs.
Around a place like Portswood, halls, schools and small businesses all have washrooms and kitchens used by many people. Sealant and fire-rated joints there matter as much as in any larger building.
A 12-month guarantee comes as standard.
- Location
- Portswood (SO17, SO14, SO18)
- Region
- Southampton
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Fire rated sealant in Portswood: local notes
For seaside hotels, guest houses and holiday lets around Portswood, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. Portswood has hotels and guest accommodation in and around it. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
If you look after a building such as St Denys Primary School, fire-stopping around service openings should be restored whenever new services go in. For landlords with property near St Denys station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Portswood is about 1 mile north of Southampton, in Southampton. If you need fire rated sealant in Portswood, please ring 0345 464 0079 or send us an email for a quick quote. We cover Southampton from our Crawley base. Our Southampton coverage runs to 40 places, Portswood among them.
Work in SO17, SO14 and SO18 works the same way as everywhere else we cover. You will find streets such as Ivy Road, Alma Road and Lawn Road. Portswood sits on or near the A335 and A3035, so getting to you is simple. We also cover the places around Portswood: St Denys (1 mile south-east), Southampton (1 mile south), Inner Avenue (1 mile south-west), Bitterne Manor (1 mile south-east) and Bitterne Park (1 mile east). Within a short drive, we also cover Thornhill (3 miles south-east), Maybush (3 miles west), Eling (4 miles west), Rownhams (3 miles north-west), Millbrook (3 miles west) and Weston (3 miles south).
Near you in Portswood
Locally, jobs take us to homes and businesses close to St Anne's Catholic School, St Mary's Independent School and South Western Arms and the streets around them. Portswood has its own railway station: St Denys station. Well-known places in the area include Marlands Shopping Centre (1.5 miles south) and Royal South Hants Hospital (0.9 miles south). Open spaces near Portswood include Netley Common.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Do you need fire rated sealant in Portswood?
In some buildings the gap was filled with the wrong thing in the first place: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It may look fine, but it isn’t a fire-rated seal.
Most people get in touch after spotting something like this:
- Standard silicone or caulk in a fire-stopping gap
- Cracked or shrunken fire-rated sealant
- Gaps where walls meet ceilings or slabs
- Gaps left after a refit or conversion
For buildings such as Highfield Church, service openings in its walls need the right fire-rated sealant, as in any building.
What your quote should include
- What guarantee comes with the work
- Whether they’re fully insured
- Whether VAT is included
- Whether the sealant suits the joint
Quotes for fire rated sealant in Portswood
The price is agreed before any work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- When we can work, for business premises
- Whether there’s mould to deal with
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us and we will talk you through it.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
- Any access issues, like height or stairs
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
What the job involves on each surface
Linear gaps
A linear joint may need to allow for movement as well as fire. The product and depth are chosen to suit both, following the tested detail.
Door frames
We deal with the gap around the frame, not the door. Doors, seals and closers are for a door specialist.
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Fire doors that need new seals, closers or hardware
- Big openings where sealant alone is not the tested solution
- Sign-off of the building, which sits with building control or your assessor
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Linear gaps
- Plasterboard & masonry
- Service penetrations
- Door frames
- Flats & HMOs
- Pipe & cable gaps
Places near Portswood
What else we do in Portswood
Portswood: your questions answered
Do you work in hotels near Portswood?
Yes. Hotel and guest-house work is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Do you cover smaller places like Portswood?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Are you fully insured?
Yes. We are fully insured.
Can you tell me how many minutes the seal will last?
We do not issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves.
Can you tell me which gaps need fire stopping?
No. We follow the requirements from your assessor, designer or building control and install to the manufacturer’s details.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Can you match the sealant colour?
In most cases you can choose. We will explain which colours are available.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Never patch a fire seal with standard sealant
- Get damaged fire seals looked at promptly
- Include hidden areas like risers in routine checks
- Photograph sealed gaps before they’re covered up
Tell other trades that the gaps have been sealed, and make sure anything they disturb is resealed with a suitable product. A lot of damaged fire stopping comes from later work.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.