Fire stopping in Lyndhurst
Sealant work in Lyndhurst for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Penetration schedules that need working through
- Damaged fire seals in risers and voids
- Head-of-wall gaps with no fire seal
Fire stopping near Lyndhurst
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
When it isn’t the sealant
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Deciding what a wall or floor needs, which belongs to the designer
- Fire risk assessments, a job for a competent assessor
- Issuing fire ratings or certificates for seals
If in doubt, speak to us on 01277 525 020 or email drawings and photos and we’ll say what we think.
What we seal
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Service gaps in risers
About our fire stopping in Lyndhurst
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls. We close the openings listed on your schedule, using the specified sealant and detail. We work on cable penetrations, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows, and the usual reasons a site gets in touch are non-fire-rated filler around services and hidden openings found during inspections. One point of contact handles commercial sealant work in Lyndhurst from the first photographs to the final walk-round, whether it’s one building or several.
In places the size of Lyndhurst, fire-resisting walls and floors are found in schools, care homes, health centres and mixed-use buildings. Around those penetrations, fire-rated sealant is installed if specified, with depth, backing and gap all as tested.
We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Place
- Lyndhurst (SO43)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Your questions answered
Is hospital work, at somewhere like Ashurst Hospital, something you do?
Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Lyndhurst?
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.
How much does the work cost?
Every job gets its own fixed quote. To get one, phone 01277 525 020 or send details through our quote form with a description of the work.
Can you quote from photographs?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit before quoting.
How do you choose the sealant?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
What if there’s asbestos in the old mastic?
Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
Do you seal on top of existing sealant?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
When to call us in Lyndhurst
Most open service penetrations are left by later work. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Over a few years of fit-outs, a wall can collect a lot of these.
Look out for the following:
- Unsealed openings around new pipes and cables
- Builders’ foam or ordinary silicone in compartment walls
- Open linear gaps along the top of fire-resisting walls
- Fire seals cut back for extra cables and never reinstated
At a healthcare site like Ashurst Hospital, 2.6 miles to the north-east of Lyndhurst, new services through compartment walls are a constant, and each needs the specified seal.
What your quote should include
- Proof of insurance
- How they’ll work around occupants
- Who will actually carry out the work
- Whether old or failed sealant will be cut out, not overlaid
Compartment walls and floors in Lyndhurst
Fire stopping of openings and penetrations in England falls under Approved Document B. 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. Lyndhurst has several hotels close by, all within 2 miles. In hotels, bedroom and corridor walls are usually fire-resisting, so services added in a refit need sealing with the specified product.
Older community buildings such as Church of Our Lady and St Edward that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Holiday works at schools like St Michael and All Angels CofE Infant School often leave service openings to seal before pupils return.
Lyndhurst is about 4 miles south-west of Totton, in Hampshire. Commercial clients in Lyndhurst can call on us for service penetrations, as part of our coverage of Hampshire. 723 places across Hampshire fall within our area, including Lyndhurst. There’s a separate page for Southampton, about 9 miles away.
Anyone looking for fire stopping in SO43 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on High Street, King's Close and Empress Road or close by, we can quote for service penetrations. If your building is just outside Lyndhurst, we cover Emery Down (1 mile west), Ashurst (3 miles north-east), Balmerlawn (3 miles south), Colbury (4 miles north-east) and Brockenhurst (4 miles south). Further afield, our area takes in Eastleigh (12 miles north-east), Totton (4 miles north-east), Chandler's Ford (11 miles north-east), Hedge End (12 miles east), Lymington (8 miles south) and Romsey (9 miles north-east).
Around Lyndhurst
We work on buildings around Fox And Hounds Public House, among other places. The closest station to Lyndhurst is Ashurst New Forest station, roughly 2.4 miles north-east. Nearby you’ll also find Ashurst Hospital (2.6 miles north-east) and National Dairy Museum (3.4 miles north-east). Not far away are Copythorne Common.
Building owners, agents and FMs in Lyndhurst
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Aftercare for building managers
After handover, a little attention goes a long way:
- Settle who seals which penetrations at the start of a project
- Make fire stopping part of every scope that crosses a fire-resisting wall
- File the specified details where the next contractor can find them
- Arrange inspection before areas are covered up
Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original, or a new specification from the designer.
Looking at service areas on a regular cycle pays off. Catching a damaged seal early keeps the fix small compared with dozens found at once.
From enquiry to sign-off
Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. Several jobs near Lyndhurst can be grouped on one trip. Mention the building’s opening times and we will work within them.
- First we confirm the product and tested details named in the specification.
- 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.
- We gun the sealant in to the specified depth around each service and tool it.
- We walk the completed areas with you and confirm the records agreed at quote stage.
Before we start on site
- Send your site hours and access windows
- Explain the parking and delivery arrangements
- Share the asbestos register for older buildings
Ask for a quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, give us a call on 01277 525 020 or use the quote form.
Related advice
Places near Lyndhurst
What else we do in Lyndhurst
Why act early in Lyndhurst
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. A failed joint lets water into a building whatever its size. Catching it early means a reseal rather than repairs.
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote once you have the details.
Why clients in Lyndhurst choose us
- Work carried out by CSCS-carded applicators
- One number for every site we cover
- Fixed quotes based on photos, drawings or a visit
- Workmanship guaranteed for 12 months
Read what affects the cost or our accreditations.