Fire-rated sealing and fire stopping in Great Thorness, Isle of Wight
Work needed on a service penetration in Great Thorness? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Fire-stopping items raised at inspection or handover
- Service penetrations left open after M&E works
- Unsealed joints where partitions meet the slab
Fire stopping for businesses in Great Thorness
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle fire stopping in Great Thorness
No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. Before we seal anything, we check the opening against the detail it is meant to follow, and raise it with you if it falls outside. The enquiries we see most involve fire seals cut back for extra cables and never reinstated and unsealed penetrations discovered above suspended ceilings, across linear gaps at wall heads, joints between fire-resisting walls and floors and pipe penetrations. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Great Thorness is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around smaller places like Great Thorness, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.
- Place
- Great Thorness (PO31)
- Region
- Isle of Wight
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What the job involves on each surface
Metal pipes
Heat travels along metal pipework, and the tested detail may ask for insulation beyond the wall. We follow whatever the detail requires and flag anything we can’t match.
Cables and cable bundles
Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables, so we check before sealing.
Aftercare for building managers
For the best life from the joints:
- Ask the designer to confirm details early on refits
- Include service cupboards in routine inspections
- Brief every trade that openings they make must be sealed
- Check with the data sheet before painting over fire sealant
During planned inspections, look at seals in risers, cupboards and voids. Look for cracks, unsealed new cables and gaps that have been enlarged.
Regular walk-rounds of service areas are worth the time. Catching a damaged seal early keeps the fix small.
Penetration seals near Great Thorness
In England, Approved Document B covers fire stopping of openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Either way, we install the specified product to its tested detail.
For a hospital such as Mr Rohan Sawant (St Mary’s Hospital), 2.8 miles to the south-east of Great Thorness, penetration sealing is typically phased ward by ward, with infection-control rules agreed first. Tenant changes at parks like Porchfield Business Park (to the south-west of Great Thorness) bring new data and services, and openings through fire-resisting walls need the specified seal.
Great Thorness is about 3 miles south-west of Cowes, in the Isle of Wight. We cover Great Thorness, with the same fixed quotes and 12-month guarantee as everywhere else. Across the Isle of Wight, 125 places are covered, including Great Thorness. For work in that direction, see our Southampton page (13 miles or so).
We cover the PO31 postcode districts for service penetrations. Sites close to Great Thorness are covered too, including Porchfield (1 mile south-west), Locksgreen (1 mile south-west), Rew Street (2 miles north-east), Newtown (2 miles south-west) and Northwood (2 miles north-east). Further afield, our area takes in Newport (3 miles south-east), Ryde (9 miles east), Cowes (3 miles north-east), Sandown (10 miles south-east), Shanklin (10 miles south-east) and Ventnor (11 miles south-east). Where a site is remote or on an island, travel and materials need planning ahead, so include the location in your enquiry.
What’s near Great Thorness
In Great Thorness, that means premises near Sportsman's Rest pub, among other places. Well-known places in the area include Carisbrooke Castle (3.5 miles south-east) and St Mary's Hospital (2.8 miles south-east). Not far away are Mill Hill.
When it isn’t the sealant
We check first that sealant really is the fix. It isn’t the answer for:
- Plastic pipes whose detail calls for a collar or wrap
- Fire doors, dampers or other fire safety equipment
- Gaps in walls that were never built as compartment walls
If you’re not sure, just give us a call on 01277 525 020 or use the quote form and we will give you a straight answer.
Surfaces we seal
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Cable penetrations
- Service gaps in risers
- Linear gaps at wall heads
Great Thorness: questions and answers
Does your area include sites such as Porchfield Business Park, near Great Thorness?
Yes. We cover Great Thorness and the area around it, including industrial estates, business parks and retail parks such as Porchfield Business Park. A few photographs and the unit address let us price the work.
What happens to BS 476 references for fire stopping in Great Thorness?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Do you offer coloured sealant?
That depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Are you insured?
Yes. We are fully insured, and the certificate can go with your quote.
Can you fit around our working hours?
We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Can the building stay open while you work?
Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.
Do you work in Great Thorness?
Yes. Sites across Great Thorness are covered, with one number for every area we cover.
Cost factors for service penetrations
Before we quote, we look at:
- Access and working height
- Site requirements such as inductions and permits
- The product specified
- Joint width, depth and condition
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Sending details for a quote
Diagnosis starts before we arrive. Tell us:
- Specification clauses that apply
- Access details, including height
- Drawings or a marked-up plan, if available
- The type of building and who uses it
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or email the details over.
For managing agents and facilities managers
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Places near Great Thorness
Other services in Great Thorness
On site: what to expect
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For a building around Great Thorness, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- We read the specification, drawings or penetration schedule you send.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- If an opening needs something other than sealant, we tell you instead of improvising.
Preparing the site
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
- Tell us which areas need to stay in use
Ask for a quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to call 01277 525 020 or email us.