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

Fire-rated sealing and fire stopping in Woodside, Hampshire

Looking for fire stopping in Woodside? It’s simple: send details, get a quote, we seal, guaranteed.

  • Openings found when ceilings come down for a refit
  • Fire sealant pulled out of the opening
  • Fire-stopping items raised at inspection or handover
1
Send details
Send the specification, photos or a marked-up plan.
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.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping in Woodside

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

Fire stopping in Woodside, done properly

Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. If you have fire stopping installed outside its tested range and unsealed openings around new pipes and cables, we can put it right, whatever the surface. A specialist sealant contractor works differently from a general builder: in Woodside, that means joint design, primers and backing rod as standard.

Rural conversions around Woodside can put new fire-resisting partitions inside older structures. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Woodside (SP11)
Region
Hampshire
Guarantee
12 months on our workmanship
Quote
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

Where services cross fire walls in Woodside

At about 63 miles from central London, Woodside is within reach of the capital. 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. 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.

Schools such as Vernham Dean Gillum's Church of England Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.

Woodside is about 7 miles north of Andover, in Hampshire. We cover Woodside, with the same fixed quotes and 12-month guarantee as everywhere else. 723 places across Hampshire fall within our area, including Woodside. Our Reading page has more on work in that area (26 miles or so).

Business premises anywhere in SP11 are within our area. Nearby places we also cover include Vernham Dean (1 mile east) and Bagshot (6 miles north). Nearby towns on our patch include Andover (7 miles south), Tidworth (8 miles south-west), Ludgershall (6 miles south-west), Whitchurch (10 miles south-east), East Anton (6 miles south-east) and Overton (12 miles east).

Around Woodside

Locally, jobs take us to sites close to The George Inn. Open spaces near Woodside include Inkpen Hill.

Map of Woodside © OpenStreetMap contributors

Site staff or a sealant specialist?

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

When to call us in Woodside

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Deflection and building movement can open these gaps. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Common reasons buildings call us in:

  • Improvised or mixed-product fire seals
  • Service penetrations left open after M&E works
  • Fire-stopping items raised at inspection or handover
  • Expanding foam used as fire stopping

For a building such as Church of St Mary, new heating or data runs are the usual reason penetrations need sealing.

Before you book anyone

  • Whether their applicators hold CSCS cards
  • Proof of insurance
  • Whether old or failed sealant will be cut out, not overlaid
  • What the guarantee covers, and for how long

How to choose a sealant contractor

Your questions answered

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

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. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Is Woodside too small for you to travel to?

Not at all. Woodside is within our area. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.

Can weather delay the job?

It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

Do you seal on top of existing sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

Are you insured?

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

How long does a typical visit take?

It depends on the scope, but the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.

Which sealant will you use?

The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

Cost factors for service penetrations

The price varies from site to site. Expect it to depend on:

  • Induction, permit and paperwork requirements
  • Which sealant the job calls for
  • Location, for remote and island sites
  • Removal of failed or old sealant

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.

Sending details for a quote

For an accurate fixed quote, we need to understand the site. Send us:

  • Your programme or deadline
  • Photos of the joints, close up and from further back
  • The type of building and who uses it
  • The product your specification calls for

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.

What happens if it’s left?

Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed which is why earlier is better. Converted and older buildings near places like Woodside tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a quote once you have the details.

What you get with us

  • Commercial sealant work since 2005
  • Workmanship guaranteed for 12 months
  • Products installed to the manufacturer’s instructions
  • Clear, fixed quotes

See what affects the cost or our accreditations and insurance.

Work for main contractors and building owners

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

Diagnose, treat, 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. Rural sites near Woodside may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. We fit the backing the detail asks for, to the stated depth.
  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.

Preparing the site

  • Share the asbestos register for older buildings
  • Move anything stored against the joints
  • Tell us which areas need to stay in use

Ask for a quote

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, call the office on 01277 525 020 or send photos by email.

Get a quick quote

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Accreditations

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