Portsmouth · England
Portsmouth Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Portsmouth, with a one-year guarantee on every job. Call for a quick quote.
- New service routes left unsealed after building work
- Open gaps behind door architraves
- Seals cut through by electricians, plumbers or data installers
About our fire rated sealant in Portsmouth
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. A new cable run or a replaced pipe can leave an open hole behind. We seal them with a product tested for that kind of gap. Typical jobs include gaps flagged on a fire risk assessment and unsealed gaps around fire door frames, on door frames, service penetrations and flats & HMOs.
A place the size of Portsmouth has offices, shops, hotels and schools, all with washrooms, kitchens and service openings that need the right sealant. Our work covers washroom and kitchen sealant as well as fire-rated sealant, fitted to the product’s tested details.
All our work comes with a 12-month guarantee.
- Place
- Portsmouth (PO6, PO4, PO1, PO2)
- Wider area
- Portsmouth
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Do you need fire rated sealant in Portsmouth?
Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole round the new service is not always sealed again.
Look out for any of the following:
- Seals cut through by electricians, plumbers or data installers
- Unsealed gaps around fire door frames
- Gaps filled with a product that is not fire-rated
- Holes left by a change of layout
Letting a property close to Fratton station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What your quote should include
- Whether you can choose the colour
- How the joint is cleaned and prepared
- Whether the sealant suits the joint
- What guarantee comes with the work
Other services in Portsmouth
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the job takes from a few hours to a few days, depending on the number of gaps and the access in most cases. In Portsmouth, we work in everything from flats and family homes to offices and hotels. Whichever it is, tell us how to get in, where to park and where the work is.
- 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.
- Backing or fill is fitted where the product’s tested detail calls for it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- We record the locations and products used for your records.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
Getting a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
Read more
DIY versus a professional finish
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.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Work for landlords, hotels and businesses
Landlords and agents in Portsmouth can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
What fire rated sealant looks like in Portsmouth
If you run a hotel, guest house or holiday let in a coastal place like Portsmouth, 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. Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
Community buildings like St Wilfrid are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. Schools such as Manor Infant School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.
Portsmouth is in England. Homes, rented property, offices and hotels in Portsmouth can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. We cover 19 towns and villages across Portsmouth, large and small.
Our applicators cover all of the PO6, PO4, PO1 and PO2 postcode area for fire rated sealant and the streets around it. Whether your property is on Church Road, April Square and Rudmore Square or anywhere close by, our applicators can take on the job. Main roads around Portsmouth include the A3 and A27. If you’re just outside Portsmouth, we cover Rudmore (1 mile north-west), Landport (1 mile south-west), North End (1 mile north), Fratton (1 mile south-east) and Kingston (1 mile south-east). We also work in nearby towns such as Wymering (3 miles north), Paulsgrove (3 miles north), Drayton (3 miles north-east) and Farlington (3 miles north-east).
Near you in Portsmouth
Typical jobs here are in homes near The Portsmouth Academy, Alexandra Park and St Edmund's Catholic School, among other places. The nearest railway station is Fratton station, roughly 0.9 miles south of the centre. Nearby you will also find Royal Portsmouth Hospital (0.7 miles south-west) and Charles Dickens Birthplace Museum (less than half a mile west). Not far away are Milton Locks and Portsdown Hill.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Don’t paint over fire sealant until it has cured
- Include fire stopping when you schedule refits
- Report cracked or damaged seals as soon as you notice them
- Never patch a fire seal with standard sealant
Do not add foam, filler or ordinary sealant over a fire seal. Repairs should use a matching fire-rated product. Ask us if you’re not sure which product was used.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Catching it then saves a separate visit later.
Portsmouth questions
Can you help a landlord with a rental near Fratton station?
Yes. We work for landlords and agents as well as homeowners. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you take on hotel work around Portsmouth?
Yes, hospitality work, including hotels, is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you offer different sealant colours?
Most of the time, yes. We’ll explain which colours are available.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
Will you assess my building’s fire safety?
No, we do not assess buildings. Once you have a specification or action list from your assessor or designer, we will quote for the sealant work on it.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
How we quote for fire rated sealant
Call for a quick quote. What matters most is:
- How many rooms, windows or areas are involved
- The number and length of the joints
- How easy the joints are to reach
- Working hours on commercial sites
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
When you contact us, these details help:
- Any access issues, like height or stairs
- If someone has resealed it before
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand.
Different surfaces, different methods
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before applying the sealant.
Service penetrations
New gaps tend to show up where services have been added. Old or unsuitable filler comes out before the right sealant goes in over any backing the detail calls for.