Hampshire · England
Fire-rated sealant in Portchester, Hampshire
Fire rated sealant for Portchester, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Seals cut through by electricians, plumbers or data installers
- Standard silicone or caulk in a fire-stopping gap
- Open joints along the top of partitions
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
About our fire rated sealant in Portchester
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’s the part we focus on, gap by gap. We work on service penetrations, door frames and pipe & cable gaps, and people most often call us about gaps left after a refit or conversion and fire stopping disturbed by later work.
If you run a pub, café, guest house or shop in or near Portchester, its washrooms and kitchen need the same sealant care as any big building, and fire-rated sealant around service openings should be restored after new pipes or cables go through.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- Portchester (PO16, PO6, PO17)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
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.
Flats and HMOs
Converted houses often have gaps around old and new services. We seal the ones on your specification with a tested product.
Commercial buildings in Portchester
If you run a hotel, guest house or holiday let in a coastal place like Portchester, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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, 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.
If you let a flat or house near Portchester station, any gap left by new services in shared walls should be closed with a fire-rated product. Community buildings like Church of St Mary are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Portchester is about 3 miles north-east of Gosport, in Hampshire. Every kind of property in Portchester can book us for fire rated sealant. Every job comes with our 12-month guarantee. Portchester is one of 683 places in Hampshire we cover.
Postcode districts we cover here for fire rated sealant: PO16, PO6 and PO17. Whether your property is on Cow Lane, Hill Road and Ralph Road or anywhere close by, our applicators can take on the job. If you are just outside Portchester, we cover Boarhunt (2 miles north-west), Southwick (2 miles north), Elson (2 miles south-west), Wallington (2 miles west) and Priddy's Hard (2 miles south). We also work in nearby towns such as Gosport (3 miles south-west), Havant (6 miles east), Eastleigh (13 miles north-west), Fareham (3 miles west), Horndean (7 miles north-east) and Chandler's Ford (15 miles north-west).
Landmarks near Portchester
We work in homes and buildings around Portchester Community School and The Cormorant pub, among other places. The closest station to Portchester is Portchester station, about 0.5 miles north-west of the centre. Nearby you’ll also find Portchester Castle (within half a mile south-east) and Queen Alexandra Hospital (2.3 miles east). Not far away are West of the River Alver and Portsdown Hill.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
If you manage several properties in or around Portchester, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep photos of seals that will be hidden
- Tell trades working in the building that fire seals must be put back
- Do not fill fire-stopping gaps with ordinary foam or silicone
- Include hidden areas like risers in routine checks
Don’t drill through or remove a fire seal without putting it back properly. New services through a sealed wall should include fire stopping in the plan.
Open gaps don’t only matter in a fire: they also let noise, draughts and sometimes pests through. Sealing them early helps on every front.
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of gaps, and longer for a whole building. A visit to Portchester is planned like any other: the time, the access and where to park are agreed in advance. 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.
- Old, damaged or unsuitable sealant is removed.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
- Mention any tricky access
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
Nearby places to Portchester
What else we do in Portchester
When to call us in Portchester
Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
These are the problems we’re asked about most:
- Old fire sealant that has split or come away
- Gaps where walls meet ceilings or slabs
- Standard silicone or caulk in a fire-stopping gap
- Gaps flagged on a fire risk assessment
For site and facilities teams at buildings such as Castle Primary School, fire-stopping around service openings should be restored whenever new services go in.
What to look for in a quote
- What product goes in the joint
- Which colour the sealant will be
- Whether they’re fully insured
- How the surfaces are prepared before sealing
Your questions about fire rated sealant in Portchester
Is Portchester in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Portchester is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Can you help a landlord with a rental near Portchester station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
How long does the job take?
Most jobs take anything from a few hours to several days, depending on how many gaps there are, including the preparation. We’ll confirm how long when we quote.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Will we have a record of what was sealed?
Yes. When the job is done, we give you the locations and products. If you need photos or a set layout, ask when you get a quote.
Do you seal gaps around fire door frames?
Yes, if the gap is within the product’s tested range. We seal the frame-to-wall gap, not the door itself and we will tell you if we spot problems with the door.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Quotes for fire rated sealant in Portchester
The price is agreed before any work begins. It takes into account:
- Access and height
- The amount of work
- How many areas need sealing
- Any mould that needs treating
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- If someone has resealed it before
- The address or postcode of the job
- A few pictures by email, if you can
- The type of property
If you’re in Portchester and need fire rated sealant, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.