Fire Stopping in Dunsbury
Commercial sealant work in Dunsbury for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Head-of-wall gaps with no fire seal
- Fire sealant pulled out of the opening
- Non-fire-rated filler around services
Fire stopping for businesses in Dunsbury
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
When it isn’t the sealant
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Issuing fire ratings or certificates for seals
- Reviewing a building’s overall fire safety
- Large openings beyond what any sealant detail covers
If you are not sure, just phone 01277 525 020 or send photos by email and we will give you a straight answer.
Surfaces we seal
- Cable penetrations
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Pipe penetrations
- Service gaps in risers
- Small duct penetrations where the tested detail allows
Fire stopping in Dunsbury, done properly
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and cable penetrations, and the usual reasons a site gets in touch are fire-stopping items raised at inspection or handover and unsealed joints where partitions meet the slab. A specialist sealant contractor works differently from a general builder: on jobs in Dunsbury, preparation and product choice get the time they need.
Rural conversions around Dunsbury can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant.
- Where
- Dunsbury (PO30)
- Region
- Isle of Wight
- Guarantee
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Doing it in-house
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Questions about Dunsbury
Is Dunsbury too far out for you?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
What does the BS 476 change mean for fire-rated sealant in Dunsbury?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes 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 hold CHAS accreditation?
Yes. We are CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
How much does the work cost?
Each job is quoted on its own details. For yours, speak to us on 01277 525 020 or use the quote form with a description of the work.
Will you quote for a small job?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
What sets the cost
We price every job individually. The main factors are:
- Specialist products, such as fire-rated or hygienic sealants
- The site’s rules and procedures
- The size and state of each joint
- Whether old sealant has to be cut out first
There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.
Sending details for a quote
A good diagnosis starts with the right details. Let us know:
- Any specification or named product
- Clear photos of the problem areas
- Whether the building will be occupied during the work
- Where the site is, with the postcode
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Fire-rated sealing for Dunsbury buildings
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. What we install is set by the specification, and it goes in to the tested detail.
Around Dunsbury, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product. In a building such as St. Mary's Church, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Dunsbury is about 7 miles south-west of Newport, in the Isle of Wight. Dunsbury sits inside our coverage and the rest of the Isle of Wight, with the same fixed quotes and 12-month guarantee as everywhere else. 125 places across the Isle of Wight fall within our area, Dunsbury among them. Southampton is covered too, around 18 miles from Dunsbury.
Postcode districts covered here: PO30 for service penetrations. Close to Dunsbury, our area also takes in Brook (1 mile south), Hulverstone (1 mile south-east), Brookgreen (1 mile south-east), Shalcombe (1 mile north-east) and Chilton Green (2 miles south-east). Further afield, our area takes in Newport (7 miles north-east), Ryde (14 miles east), Cowes (9 miles north-east), Sandown (13 miles east), Shanklin (12 miles east) and Ventnor (12 miles east). Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you call 01277 525 020 or send photos by email.
Near you in Dunsbury
Nearby you will also find Yarmouth Castle (3.9 miles north-west) and Calbourne Water Mill And Rural Museum (2.3 miles north-east). Open spaces near Dunsbury include Westover Down.
How a job runs
Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Jobs in and around smaller places like Dunsbury are usually planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Old or wrong materials are cut out.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
What we need from you
- Warn occupants and staff about the work
- Send your site hours and access windows
- Share the asbestos register for older buildings
Request a quote
To get a fixed quote, ring 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
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Nearby places to Dunsbury
What else we do in Dunsbury
Why act early in Dunsbury
An unsealed opening affects more than fire safety: they also carry noise, draughts and smells between rooms. Sealing them to the specified detail deals with the fire risk first, and the other benefits follow. Converted and older buildings near places like Dunsbury tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
The price depends on how many linear metres there are, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.
Why us?
- One phone line for London, the South East and Scotland
- CSCS-carded applicators
- 12-month guarantee on workmanship
- Joints cleaned back to sound surfaces
What the job involves on each surface
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and debris are cleared from the opening, with backing added if the detail requires it.
Small ducts
Small ductwork can sometimes be sealed with sealant where the tested detail includes it. Larger or fire-rated ductwork typically needs a different solution set by the designer, and we’ll say if that applies.