Fire-rated sealing and fire stopping in Bentworth, Hampshire
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Bentworth and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Old intumescent sealant that has split away
- Builders’ foam or ordinary silicone in compartment walls
- Damaged fire seals in risers and voids
Fire stopping near Bentworth
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Site staff or a sealant specialist?
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.
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Fire stopping in Bentworth
No fire sealant works on its own: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. We match each opening to that detail before any sealant goes in. If you have unsealed openings around new pipes and cables and old intumescent sealant that has split away, we can put it right. Searching for sealant specialists in Bentworth? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
For a smaller site near Bentworth, we plan to do all the penetrations in one go, so send the specification and photographs first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.
- Location
- Bentworth (GU34)
- Wider area
- Hampshire
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
What we are called out for in Bentworth
Openings in fire-resisting walls typically appear when services are added or changed. 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.
If one of these sounds familiar, it’s time for a closer look:
- Head-of-wall gaps with no fire seal
- Old intumescent sealant that has split away
- Damaged fire seals in risers and voids
- Hidden openings found during inspections
Industrial units on estates such as Barton Industrial Estate (to the south-west of Bentworth) often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.
Questions to ask before you book
- Their plan for phasing and protecting the area
- How they handle RAMS and site documents
- Their approach to joint depth and backing
- Whether primer will be used where the manufacturer specifies it
Questions we’re asked in Bentworth
Is Barton Industrial Estate, near Bentworth, within your area?
Yes. Estates, retail parks and business parks around Bentworth, Barton Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Is Bentworth too far out for you?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.
Is any job too small?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
Can you send site paperwork?
Requirements differ from site to site, so tell us what you need and we’ll confirm it when we quote.
Do you have third-party installer accreditation for fire stopping?
No. We are not members of a third-party fire-stopping installer scheme. Our credentials are CHAS accreditation, Constructionline membership and CSCS-carded applicators, and we are fully insured. If your contract requires third-party installer certification, we are not the right fit for that package.
How soon can the area be used again?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Can one quote cover more than one building?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Why it’s worth doing now in Bentworth
The longer openings stay, the more there tend to be: every new cable or pipe adds another. Keeping on top of it after each round of works keeps the job small. For buildings around smaller places like Bentworth, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
We don’t publish prices, since every building and every scope is different. Call for a quote.
Why choose Mastic Doctor in Bentworth
- Clear, fixed quotes
- Constructionline member for supplier checks
- 12-month guarantee on workmanship
- One number for every site we cover
Read our cost guide and how we’re accredited.
Where services cross fire walls in Bentworth
Bentworth is about 47 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.
Older community buildings such as St. Mary's Church that have been rewired or given new heating can have service gaps through walls worth checking against the specification. For a school such as St Mary's Bentworth Church of England Primary School, penetration sealing fits best at the end of the summer works.
Bentworth is about 3 miles west of Alton, in Hampshire. Commercial clients in Bentworth can call on us for service penetrations. We work across 723 places in Hampshire, large and small. Sites around Reading have their own page, roughly 20 miles from Bentworth.
Anyone looking for fire stopping in GU34 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 Village Street, Church Street and Drury Lane or close by, send details and we’ll quote for service penetrations. If your building is just outside Bentworth, we cover Holt End (1 mile south-west), Thedden (1 mile south-east), Wivelrod (1 mile south-east), New Copse (1 mile south-west) and Beech (2 miles south-east). Bigger towns within reach include Basingstoke (8 miles north), Winchester (13 miles south-west), Farnborough (15 miles north-east), Fleet (12 miles north-east), Aldershot (14 miles north-east) and Alton (3 miles east).
Local landmarks in Bentworth
We work on buildings around The Star Inn, among other places. Bentworth’s nearest station is Alton station, about 3.5 miles east. A little further out are Barton Castle (3.2 miles south-west) and Gliding Heritage Centre (2.2 miles north-east). Not far away are King's Hill.
Keeping the joints sound
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Settle who seals which penetrations at the start of a project
- Record which product was used where
- Keep general-purpose fillers away from compartment walls
- Treat an open penetration as a priority repair
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown, and report them promptly.
Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate.
Our process
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Jobs in and around smaller places like Bentworth are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- 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.
- Unsuitable fillers and loose debris are taken out of each opening.
- 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.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
Getting a fixed quote
Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, give us a call on 01277 525 020 or email drawings and photos.
Read more
Also in Bentworth
Owners, agents and contractors
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.