Portsmouth · England
Fire Rated Sealant in Portsea
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in Portsea. Fully insured, ARBOMaster approved and guaranteed for a year.
- Seals cut through by electricians, plumbers or data installers
- New service routes left unsealed after building work
- Door frames with gaps between frame and wall
Fire rated sealant for homes and businesses in Portsea
Door frame gaps, linear joints and holes around services all have their own details. Measuring the gap and checking what it’s made of comes first, then the sealant goes in to the depth the product’s details set. Typical jobs include joints picked up in a fire-stopping survey and open joints along the top of partitions, on door frames, flats & HMOs and plasterboard & masonry.
For a pub, café, guest house or shop in or near Portsea, the washrooms and kitchen need the same attention as a big site.
Your job is guaranteed for a year, as with all our work.
- Location
- Portsea (PO1, PO12, PO5)
- Wider area
- Portsmouth
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before the sealant goes in.
Service penetrations
Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. The sealant is chosen for what passes through and how wide the gap is.
Leave it or put it right?
Squirting in whichever sealant is nearest doesn’t make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. Homes in smaller places like Portsea can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.
What you get with us
- Full insurance on every job
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
- We leave the area clean and tidy
Take a look at how sealant jobs are priced or what customers say.
Towns and villages near Portsea
More services for Portsea
What happens on the day
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes from a few hours to a few days, depending on the number of gaps and the access. In a smaller place like Portsea, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- We record the locations and products used for your records.
Preparing for the visit
- Let us know about parking restrictions
- Mention any tricky access
- Clear the area around the work
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details.
Read more
How to look after the new joints
So the new joints stay in good condition:
- Get damaged fire seals looked at promptly
- Check risers, ceiling voids and cupboards during building checks
- Photograph sealed gaps before they’re covered up
- Don’t paint over fire sealant until it has cured
Look at the sealed gaps as part of your routine walk-rounds. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
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 generally a straightforward job.
When something else is needed
To be straight with you, there are a few things sealant won’t fix:
- Big openings where sealant alone is not the tested solution
- Walls or floors that weren’t built to resist fire
- Sign-off of the building, which sits with building control or your assessor
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
What we seal
- Flats & HMOs
- Service penetrations
- Linear gaps
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
Portsea: your questions answered
Do you work for hotels and guest houses in Portsea?
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.
Can you help a landlord with a rental near Portsmouth Harbour station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
How long does the job take?
That depends on the amount of work, but most jobs take from a few hours to a few days, depending on the number of gaps and the access. We’ll tell you when we quote.
Are you fully insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
How do I get a quote for fire rated sealant in Portsea?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
Commercial buildings in Portsea
For seaside hotels, guest houses and holiday lets around Portsea, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you look after a church, hall or community building such as St Ann's Church, older buildings that have had new heating or wiring often have service gaps worth checking. If you let a flat or house near Portsmouth Harbour station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For site and facilities teams at buildings such as Portsmouth Grammar School, fire-stopping around service openings should be restored whenever new services go in.
Portsea is about 1 mile south-west of Portsmouth, in Portsmouth. If you need fire rated sealant in Portsea, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Portsmouth. 19 places in Portsmouth are on our list.
Postcode districts we cover here for fire rated sealant: PO1, PO12 and PO5. Fire rated sealant is available to properties on Main Road, Park Road and Scott Road. We also cover the places around Portsea: Portsmouth Point (1 mile south), Clayhall (2 miles south-west), Haslar (2 miles south-west), Alverstoke (2 miles south-west) and Privett (2 miles west). Larger places within reach include Hilsea (3 miles north-east), Wymering (4 miles north-east), Paulsgrove (4 miles north), Cosham (3 miles north-east), Drayton (4 miles north-east) and Farlington (5 miles north-east).
What’s near Portsea
Typical jobs here are in homes near The Ship & Castle pub, St Jude's CofE Primary School and Charter Academy and the streets around them. There’s a railway station in Portsea itself: Portsmouth Harbour station. Nearby you will also find Royal Portsmouth Hospital (0.8 miles east) and Genesis Expo Creationist Museum (less than half a mile south). Not far away are Milton Locks and Portsdown Hill.
Landlords, agents and businesses in Portsea
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Should I try it myself first?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.