Fire-rated sealing and fire stopping in Twyford, Hampshire
Sealant work in Twyford for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.
- Openings found when ceilings come down for a refit
- Seals that don’t match their tested detail
- Service penetrations left open after M&E works
Fire stopping in Twyford
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping for commercial buildings in Twyford
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We hold no third-party fire-stopping installer certificate, and we won’t pretend otherwise. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. We work on cable penetrations, service gaps in risers and joints between fire-resisting walls and floors, and the usual reasons a site gets in touch are old intumescent sealant that has split away and improvised or mixed-product fire seals. Whether you call it commercial sealant work, mastic application or joint sealing, in Twyford it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Barn and farm-building conversions near places like Twyford often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.
- Location
- Twyford (SO21)
- Wider area
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Questions about Twyford
Is hospital work, at somewhere like Wessex Hospital, something you do?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Twyford too small for you to travel to?
No. Places such as Twyford are covered as much as the big towns. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
Will fire-rated sealant work on every penetration?
No. It depends on the tested detail for that wall or floor and service. Collars, wraps, batts and boards exist for openings sealant doesn’t cover.
What changes on 2 September 2029?
For buildings in England, Approved Document B removes BS 476 references from 2 September 2029. Classification to BS EN 13501-2 becomes the expected evidence, though transitional rules apply. In Scotland, the Technical Handbook sets its own guidance, with clause 2.1.14 covering service penetrations.
What do you charge?
We don’t publish prices, because every site is different. Send photographs or drawings and we will price it at a fixed figure.
Do the same rules apply to fire stopping in Scotland?
Our area runs from Greater London and the South East to every part of Scotland. Scotland’s non-domestic Technical Handbook, clause 2.1.14, expects service penetrations to be fire stopped to at least the wall or floor’s fire resistance, using products tested for their end use.
Do you guarantee your work?
Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.
Towns and villages near Twyford
Also in Twyford
Commercial clients in Twyford
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
Why it’s worth doing now in Twyford
A seal that doesn’t match its tested detail gives false comfort. Correcting it means cutting it out and starting again with the specified product, so it makes sense to get it right first time. Around Twyford, it’s better to renew all the failing joints at once, rather than one at a time. Send photographs of each area and we’ll quote for the lot.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we will explain how it’s made up.
Why clients in Twyford choose us
- CHAS accredited
- Constructionline member for supplier checks
- 12 months’ guarantee on every job
- Commercial sealant work since 2005
Take a look at what affects the cost and our accreditations.
When something else is needed
Honesty saves time and money. Fresh joints won’t solve:
- Openings that need collars, wraps, batts or boards rather than sealant
- Issuing fire ratings or certificates for seals
- Writing the fire-stopping specification
If in doubt, call the office on 01277 525 020 or email drawings and photos and we’ll say what we think.
Joints and surfaces we work on
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Cable penetrations
- Linear gaps at wall heads
- Service gaps in risers
- Small duct penetrations where the tested detail allows
When to bring in a specialist
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.
Compartment walls and floors in Twyford
Twyford is about 62 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. 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. Our part stays the same: the specified product, installed to its tested detail.
Holiday works at schools like Twyford St Mary's Church of England Primary School often leave service openings to seal before pupils return. Halls and meeting rooms at places like Church of St Mary sometimes gain new services, and any compartment wall crossed needs the specified seal. Theatres, wards and plant rooms at sites like Wessex Hospital (to the south-west of Twyford) all have compartment walls crossed by services.
Twyford is about 3 miles south of Winchester, in Hampshire. We cover commercial sites throughout Twyford, for single jobs and planned programmes alike. 723 places across Hampshire fall within our area, including Twyford. For work in that direction, see our Southampton page (8 miles or so).
If you need fire stopping in SO21, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. For a building on High Street, Roman Road and The Crescent or nearby, send details and we will quote for service penetrations. Being close to the B3335, Twyford is easy to get to with materials and equipment. Close to Twyford, our area also takes in Shawford (1 mile north-west), South Down (1 mile west), Compton (1 mile west), Otterbourne (1 mile south-west) and St Cross (2 miles north). Further afield, our area takes in Winchester (3 miles north), Eastleigh (4 miles south), Fareham (13 miles south-east), Andover (15 miles north-west), Horndean (15 miles south-east) and Totton (11 miles south-west).
Landmarks near Twyford
We work on buildings around Phoenix Inn and St. Cross Park and the streets around them. Twyford’s nearest station is Shawford station, roughly 0.7 miles west. Well-known places in the area include Wolvesey Castle (2.8 miles north) and The Gurkha Museum (2.6 miles north). Green spaces nearby include Twyford Down and Hockley Meadows.
Diagnose, treat, sign off
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before we move to the next. For work around Twyford, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- Each opening is checked for wall or floor type, service, gap and depth.
- Foam, ordinary sealant and debris come out first.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Preparing the site
- Arrange parking or a loading space
- Make sure the joints can be reached
- Tell us your opening times and when work is allowed
Get a fixed quote
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or email drawings and photos to discuss it first.
Advice
Cost factors for service penetrations
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- Quantities, in metres or numbers
- Whether old sealant has to be cut out first
- The site’s rules and procedures
- Access and working height
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Details that help us quote
The more we know, the firmer the quote. Helpful details to send:
- Whether an asbestos survey exists
- The postcode of the building
- Specification clauses that apply
- Clear photos of the problem areas
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.