The Mastic Doctor team standing beside their branded vans outside an office building
Hampshire · England

Fire Stopping in Ibworth

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Ibworth and the surrounding area. Send photographs or drawings for a fixed quote.

  • Unsealed penetrations discovered above suspended ceilings
  • Fire seals cut back for extra cables and never reinstated
  • Openings left by services added after handover
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping across Ibworth

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Fire stopping in Ibworth, done properly

Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it using the product and detail it sets out. Where there isn’t one, the designer or fire engineer needs to set one first. Most enquiries involve hidden openings found during inspections and service penetrations left open after M&E works, on joints between fire-resisting walls and floors, cable penetrations and pipe penetrations. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Ibworth, that means joint design, primers and backing rod as standard.

Smaller places such as Ibworth still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Where
Ibworth (RG26, RG23)
Region
Hampshire
Cover
12 months on our workmanship
Price
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

On site: what to expect

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. Smaller jobs around Ibworth can be grouped with others nearby. You’ll have a fixed quote before work starts.

  1. We start with your penetration schedule, drawings or specification.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Unsuitable material is removed and the opening cleaned.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Preparing the site

  • Let building users know which areas are affected
  • Send your site hours and access windows
  • Flag any permit to work we will need

Get a fixed quote

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, photos and a description will do.

Ask for a quote

Advice

When to call us in Ibworth

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is how unsuitable products and improvised details end up in compartment walls, which then have to be put right.

Things that normally lead to an enquiry:

  • Unsealed joints where partitions meet the slab
  • Seals that don’t match their tested detail
  • Damaged fire seals in risers and voids
  • Openings found when ceilings come down for a refit

For buildings in and around Ibworth, fire-rated sealant is installed where it is specified, to the manufacturer’s tested detail.

Comparing quotes

  • The terms of the workmanship guarantee
  • How the joint faces will be prepared and primed
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Proof of insurance

Our contractor checklist

What sealant work can’t fix

Being straight saves everyone time. Fresh joints won’t solve:

  • Construction that lacks the fire resistance the seal relies on
  • Approving the work on behalf of building control
  • Large openings beyond what any sealant detail covers

Not sure which it is? You can call the office on 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.

Joints and surfaces we work on

  • Cable penetrations
  • Small duct penetrations where the tested detail allows
  • Linear gaps at wall heads
  • Joints between fire-resisting walls and floors
  • Service gaps in risers
  • Pipe penetrations

Why deal with it now?

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, and doing it once, properly, is cheaper. For buildings around smaller places like Ibworth, 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. Renewing joints in good time avoids the problem.

The price depends on the quantity of joints, what has to come out first and the access. Call for a quote when you’re ready.

Why choose Mastic Doctor in Ibworth

  • Sealing commercial buildings since 2005
  • Constructionline member
  • Health and safety: CHAS accredited
  • Fixed quotes based on photographs, drawings or a visit

See what affects the cost or our accreditations.

Questions we’re asked in Ibworth

Can you take on a job at a hospital such as Park Prewett Hospital?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

What happens to BS 476 references for fire stopping in Ibworth?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

How long does a typical visit take?

That varies with the scale of the job, though a typical visit normally takes anything from one day to a planned run of visits, depending on the number of seals and the access. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Will you come and look before quoting?

It depends on the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs usually get a visit.

How long do sealant joints last?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Will you just go over the old sealant?

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.

How much does the work cost?

Each job is quoted on its own details. To get one, speak to us on 01277 525 020 or use the quote form with a description of the work.

Compartment walls and floors in Ibworth

Fire stopping of openings and penetrations in England falls under Approved Document B. 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. What we install is set by the specification, and it goes in to the tested detail. Central London is about 50 miles from Ibworth. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Large healthcare estates like Park Prewett Hospital, 3.1 miles east of Ibworth, change their services often, so penetration seals are worth checking after M&E work.

Ibworth is about 4 miles west of Basingstoke, in Hampshire. We send applicators to Ibworth for service penetrations. Ibworth is one of 723 places in Hampshire on our list for service penetrations. Reading is covered too, some 15 miles away.

Work on service penetrations is covered throughout RG26 and RG23, for business premises of every kind. Nearby places we also cover include Newfound (2 miles south-east), Oakley (2 miles south), Worting (3 miles south-east), Buckskin (3 miles south-east) and Winklebury (3 miles east) for service penetrations. Bigger towns within reach include Basingstoke (4 miles east), Fleet (15 miles east), Andover (14 miles west), Alton (13 miles south-east), Tadley (5 miles north) and Hook (10 miles east).

Landmarks near Ibworth

For rail, the closest station is Overton station, roughly 3.5 miles south-west. A little further out are Park Prewett Hospital (3.1 miles east).

Map of Ibworth © OpenStreetMap contributors

Surface by surface

Metal pipes

Metal pipes conduct heat, so their details often call for extra measures along the pipe, and the tested detail may ask for insulation beyond the wall. We follow whatever the detail requires and flag anything we can’t match.

Small ducts

Small ductwork can sometimes be sealed with sealant where the tested detail includes it. Larger or fire-rated ductwork usually needs a different solution set by the designer and we flag that rather than guess.

When to bring in a specialist

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Accreditations

Trusted. Accredited. Insured.