The Mastic Doctor team standing beside their branded vans outside an office building
Isle of Wight · England

Chale Green fire stopping

Work needed on a service penetration in Chale Green? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Head-of-wall gaps with no fire seal
  • Openings left by services added after handover
  • Builders’ foam or ordinary silicone in compartment walls
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping near Chale Green

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Fire stopping in Chale Green, done properly

Facilities managers in Chale Green often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it using the product and detail it sets out. With no specification in place, the first step sits with your designer or fire engineer, not with us. We work on linear gaps at wall heads, small duct penetrations where the tested detail allows and cable penetrations, and the usual reasons a site gets in touch are fire-stopping items raised at inspection or handover and unsealed penetrations discovered above suspended ceilings. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Chale Green, preparation and product choice get the time they need.

Barn and farm-building conversions near places like Chale Green often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

A 12-month guarantee applies to all our work in the Isle of Wight. If an installation problem shows up, give us a call on 01277 525 020 or use the quote form and we will arrange a return visit.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Chale Green (PO38)
Region
Isle of Wight
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026

When to call us in Chale Green

Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Movement in the frame or slab can open the joint, and a product not tested for that movement may crack. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Things that normally lead to an enquiry:

  • Unsealed joints where partitions meet the slab
  • Fire stopping installed outside its tested range
  • Old intumescent sealant that has split away
  • Unsealed openings around new pipes and cables

In a building such as St. James' Church, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Comparing quotes

  • Will failed sealant be removed rather than covered?
  • The terms of the workmanship guarantee
  • Do they follow the manufacturer’s priming guidance?
  • Who will actually carry out the work

Questions to ask before you appoint anyone

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. For a building around Chale Green, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Arrange parking or a loading space
  • Let us know about inductions and permits
  • Have the specification and drawings to hand

Request a quote

For a fixed quote, speak to us on 01277 525 020 or use the quote form with the site address and an outline of the work. You can also send details through our quote form.

Ask for a quote

Advice

What sets the cost

We price every job individually. The things that drive the figure:

  • How much existing material needs removing
  • The size and state of each joint
  • Quantities, in metres or numbers
  • The product specified

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Before you send an enquiry

It doesn’t need to be a full survey. A few details are enough to get going:

  • The site address and postcode
  • What the building is and how it’s used
  • Asbestos survey details if the building is older
  • Your programme or deadline

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. If you have questions first, give us a call on 01277 525 020 or email a schedule or drawings.

Leave it or put it right?

An unsealed opening affects more than fire safety: they also carry noise, draughts and smells between rooms. The specified fire seal closes the gap for all of these and the building feels the difference. Halls, stores and units around places like Chale Green may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.

Why clients in Chale Green choose us

  • Work to your specification and the manufacturer’s guidance
  • Public liability insurance in place
  • One phone line for London, the South East and Scotland
  • A Constructionline member, so easy to vet

Take a look at our cost guide and our accreditations and insurance.

Honest limits

Not every problem is a sealant problem, and we’re upfront when that’s the case. It won’t fix:

  • Signing off or certifying a building’s fire stopping
  • Fire doors, dampers or other fire safety equipment
  • Large openings beyond what any sealant detail covers

If you’re not sure, just phone 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.

Surfaces we seal

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

Compartment walls and floors in Chale Green

In England, Approved Document B covers fire stopping of openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail.

At a healthcare site like Whitecroft Hospital, which lies north of Chale Green, new services through compartment walls are a constant, and each needs the specified seal.

Chale Green is about 6 miles south of Newport, in the Isle of Wight. Chale Green sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across the Isle of Wight, 125 places are covered, Chale Green among them. Our Portsmouth page has more on work in that area.

Commercial sites across PO38 are covered. For a building on East View Lane, Spanners Close and Chale Green or nearby, we can quote for service penetrations. Just outside Chale Green, we also work in Pyle (1 mile south-west), Atherfield Green (1 mile west), Little Atherfield (1 mile west), Chillerton (2 miles north) and Shorwell (2 miles north-west). Nearby towns on our patch include Newport (6 miles north), Ryde (10 miles north-east), Cowes (10 miles north), Sandown (7 miles east), Shanklin (6 miles east) and Ventnor (5 miles east). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.

Landmarks near Chale Green

Well-known places in the area include Blackgang Sawmill Museum (1.8 miles south) and Whitecroft Hospital (3.9 miles north). For a walk, there’s Stenbury Down.

Map of Chale Green © OpenStreetMap contributors

Common questions from Chale Green clients

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Chale Green?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is 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.

Is Chale Green too far out for you?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.

What happens if old sealant might contain asbestos?

The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

Which sealant will you use?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

How long will the new sealant last?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

Are you insured?

Yes. Our insurance certificate can be sent alongside the quote.

Can you work while the building is occupied?

Normally, yes. We phase the work so most of the building stays in use.

Surface by surface

Linear joints

Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers.

Plastic pipes

Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail, and we won’t substitute it for a specified collar.

Accreditations

Trusted. Accredited. Insured.