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

Fire Stopping in Sandown

Fire-rated and intumescent sealing of service penetrations and linear gaps in Sandown and across the Isle of Wight. CHAS accredited and fully insured, with a 12-month guarantee.

  • Hidden openings found during inspections
  • Fire-stopping items raised at inspection or handover
  • Fire seals cut back for extra cables and never reinstated
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping in Sandown

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Work for main contractors and building owners

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Sandown. Several sites can go on one quote, which keeps the paperwork simple.

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.

About our fire stopping in Sandown

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. With no specification in place, the first step sits with your designer or fire engineer, not with us. If you have old intumescent sealant that has split away and unsealed penetrations discovered above suspended ceilings, we can help, on service gaps in risers, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors alike. A single leaking joint is often how a building in Sandown first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Around smaller places like Sandown, many commercial buildings are conversions or extensions of older ones, so it’s worth confirming the wall or floor type before choosing the seal. We match the product to the substrate and service, and say so if a collar, wrap or batt is the specified item.

We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.

Where
Sandown (PO36, PO37)
Region
Isle of Wight
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Do you need fire stopping in Sandown?

Openings in fire-resisting walls usually 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 can leave the hole behind. 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:

  • Openings left by services added after handover
  • Builders’ foam or ordinary silicone in compartment walls
  • Seals that don’t match their tested detail
  • Unsealed penetrations discovered above suspended ceilings

In a hotel such as Chad Hill Hotel, less than half a mile north-east of Sandown, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.

What your quote should include

  • What the guarantee covers, and for how long
  • What site paperwork they can supply
  • Are they CHAS accredited or on Constructionline?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Choosing a commercial sealant contractor

From enquiry to sign-off

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. For a job in Sandown, the main thing is a clear picture of the work, so send photographs of each area. You will then get a fixed price for the work.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  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

  • Let us know about inductions and permits
  • Arrange parking or a loading space
  • Tell us which areas need to stay in use

Quotes

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or send photos by email.

Get a price

Advice

When it isn’t the sealant

Before quoting, we check that sealant is the right answer. It won’t put right:

  • Fire doors, dampers or other fire safety equipment
  • Openings that need collars, wraps, batts or boards rather than sealant
  • Writing the fire-stopping specification

If in doubt, speak to us on 01277 525 020 or email us and we’ll say what we think.

Joints and surfaces we work on

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

Your questions answered

Can you seal around new services in a hotel near Sandown?

Yes, where the specification calls for fire-rated sealant. Work is done room by room so the hotel keeps trading; design and sign-off stay with the designer and building control.

What does the BS 476 change mean for fire-rated sealant in Sandown?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Can you work to our specification?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

Do you take on multi-site work?

Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.

When is resealing likely to be due?

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 inspection is the best way to catch problems early.

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited and a Constructionline member, which helps with supplier vetting.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also call the office on 01277 525 020 or email the details over. Include photographs or drawings if you have them.

How the quote is worked out

To price the job, we consider:

  • Location, for remote and island sites
  • Site requirements such as inductions and permits
  • The size and state of each joint
  • The product specified

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.

Before you send an enquiry

The more we know, the firmer the quote. When you get in touch, include:

  • What the building is and how it’s used
  • Photos of the joints, close up and from further back
  • Asbestos survey details if the building is older
  • Any dates the work must fit around

To get a fixed quote, call 01277 525 020 or email us. Our quote form is another easy route.

Fire stopping around Sandown: points for this area

A 2-mile radius around Sandown takes in a good number of hotels. In hotels, bedroom and corridor walls are typically fire-resisting, so services added in a refit need sealing with the specified product. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. 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.

In a school such as The Bay Church of England School, fire-rated sealant goes in around service penetrations where it is specified. On a hospital site such as Arthur Webster Memorial Hospital for Children (1.6 miles south-west of Sandown), fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Sandown is about 10 miles south of Gosport, in the Isle of Wight. If you’re looking for fire stopping in Sandown, we can help. Sandown is one of 125 places in the Isle of Wight on our list. We also cover Portsmouth, some 11 miles away.

Commercial sites across PO36 and PO37 are covered for service penetrations. We cover commercial and managed buildings on High Street, Nunwell Street and Park Rise and the roads nearby. Access to Sandown is via the A3055 and A3056, so getting applicators and materials to site is simple. Just outside Sandown, we also work in Lake (1 mile south-west), Yaverland (1 mile north-east), Adgestone (1 mile north), Alverstone (1 mile north-west) and Morton (1 mile north-east). Further afield, our area takes in Newport (7 miles north-west), Ryde (5 miles north), Cowes (10 miles north-west), Ventnor (5 miles south-west), East Cowes (9 miles north-west) and Oakfield (5 miles north). As one of the bigger centres in the Isle of Wight, Sandown has a broad mix of commercial, public and industrial buildings. For island and remote sites, travel and materials need planning ahead, so the full address helps from the start.

Around Sandown

Around Sandown, our work takes us to commercial buildings near The Old Comical pub, Sandown Bay Academy and Broadlea Primary School and the streets around them. There’s a railway station in Sandown itself: Sandown station. Other landmarks nearby include National Poo Museum (under half a mile south) and Arthur Webster Memorial Hospital for Children (1.6 miles south-west). Not far away are Alverstone Mead and Brading Down.

Map of Sandown © OpenStreetMap contributors

Looking after the joints

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Make fire stopping part of every scope that crosses a fire-resisting wall
  • Record which product was used where
  • Include service cupboards in routine inspections
  • Keep general-purpose fillers away from compartment walls

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.

A simple record of seal locations and products helps. When a new service goes through, everyone knows which product and detail to match.

Accreditations

Trusted. Accredited. Insured.