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

Fire-rated sealing and fire stopping in Woodlands, Hampshire

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Woodlands. Send details for a fixed quote.

  • Head-of-wall gaps with no fire seal
  • Snag lists that include open service penetrations
  • Fire seals cut back for extra cables and never reinstated
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
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping across Woodlands

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

Fire stopping in Woodlands

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. To price a package, call 01277 525 020 or email us with the schedule or marked-up drawings and the specified product data. Tell us what records you need and we will confirm with the quote. We work on service gaps in risers, linear gaps at wall heads and joints between fire-resisting walls and floors, and what we are called in for most is snag lists that include open service penetrations and expanding foam used as fire stopping. A specialist sealant contractor works differently from a general builder: on jobs in Woodlands, preparation and product choice get the time they need.

Around smaller places like Woodlands, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

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.

Place
Woodlands (SO40)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What happens if it’s left?

Sealing behind the M&E trades area by area beats a sweep at the end. Openings are visible, access is open and nothing has to be taken down. Older rural buildings around Woodlands move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.

Why us?

  • Work to your specification and the manufacturer’s guidance
  • Old sealant cut out, never sealed over
  • CHAS accredited
  • Fixed quotes based on photographs, drawings or a visit

Read what affects the cost and our accreditations and insurance.

Common problems we fix in Woodlands

Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls, which then have to be put right.

These are often picked up first by site or facilities staff:

  • Penetration schedules that need working through
  • Openings left by services added after handover
  • Builders’ foam or ordinary silicone in compartment walls
  • Seals disturbed by maintenance and left open

Theatres, wards and plant rooms at sites like Tatchbury Mount Hospital (to the north of Woodlands) all have compartment walls crossed by services.

Questions to ask before you book

  • Which product they’ll use, and why it suits the joint
  • Their public liability cover
  • Whether their applicators hold CSCS cards
  • The terms of the workmanship guarantee

How to choose a sealant contractor

Honest limits

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

  • Writing the fire-stopping specification
  • Construction that lacks the fire resistance the seal relies on
  • Large openings beyond what any sealant detail covers

If you are not sure, just phone 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.

Joints and surfaces we work on

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

Building owners, agents and FMs in Woodlands

Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first, with CSCS-carded applicators on site.

How the job changes by surface

Plastic pipes

Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail. We confirm material and size first and tell you if sealant isn’t the right product.

Cables and cable bundles

Data cabling added after handover is a regular cause of open service penetrations. Openings around new cables are resealed to the detail.

Where services cross fire walls in Woodlands

The 2 miles around Woodlands include four care or nursing homes. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. We install fire-rated sealant to the tested detail where it is specified. Fire stopping of openings and penetrations in England falls under Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Offices at parks like Rushington Business Park (1.8 miles east of Woodlands) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. At a college such as Totton College, 2 miles to the north-east of Woodlands, checking penetration seals after summer M&E works is good practice.

Woodlands is about 2 miles south-west of Totton, in Hampshire. Any commercial site in Woodlands is covered. Across Hampshire, 723 places are covered, including Woodlands. Our Southampton page has more on work in that area.

Postcode districts covered here: SO40 for service penetrations. If your site is on Alpine Road, The Crescent and Hazel Grove or close by, send details and we’ll quote for service penetrations. Nearby places we also cover include Netley Marsh (1 mile north), Ashurst Bridge (1 mile north-east), Bartley (1 mile north-west), Hounsdown (2 miles east) and Winsor (2 miles north). A short drive away, we cover Winchester (15 miles north-east), Eastleigh (10 miles north-east), Fareham (15 miles east), Chandler's Ford (9 miles north-east), Hedge End (10 miles east) and Lymington (10 miles south).

What’s near Woodlands

In Woodlands, that means premises near The New Forest pub and Hounsdown School. The closest station to Woodlands is Ashurst New Forest station, roughly 0.9 miles south-east of the centre. Other landmarks nearby include National Dairy Museum (1.5 miles east) and Ashurst Hospital (0.9 miles south-east). Green spaces nearby include Copythorne Common.

Map of Woodlands © OpenStreetMap contributors

Your questions answered

Is Woodlands off your patch?

Not at all. Woodlands 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.

Could you schedule work at a campus like Totton College for the vacation?

Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Do you offer coloured sealant?

In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We confirm what’s available for the specified product when we quote.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

Do you take on small jobs?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

Do you hold third-party fire-stopping installer certification?

No, and we’d rather be clear about that. Third-party schemes aren’t a legal requirement, but many clients and main contractors ask for them, so it’s worth checking what your contract says. Where it isn’t required, we install the specified sealant to the maker’s details.

When can the area be used after sealing?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.

On site: what to expect

Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then reopened once the sealant allows before we move to the next. Jobs in and around smaller places like Woodlands are typically planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.

  1. First we go through the drawings, schedule or specification for the seals 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. If an opening needs something other than sealant, we tell you instead of improvising.

What we need from you

  • For older buildings, check the asbestos register before work
  • Clear stock, furniture or equipment away from the joints
  • Tell us what induction or permit system the site runs

Getting a fixed quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Get a price

Read more

Accreditations

Trusted. Accredited. Insured.