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

Lord's Wood fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps in Lord's Wood. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Open linear gaps along the top of fire-resisting walls
  • Builders’ foam or ordinary silicone in compartment walls
  • Snag lists that include open service penetrations
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
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
Constructionline member
£5m public liability

Fire stopping across Lord's Wood

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

How we handle fire stopping in Lord's Wood

No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. We match each opening to that detail before any sealant goes in, and we say so if it doesn’t fit. If you have openings left by services added after handover and fire-stopping items raised at inspection or handover, we can put it right. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Lord's Wood is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Lord's Wood still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Work we carry out in Hampshire comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or send photos by email and we will come back to it.

Place
Lord's Wood (SO50)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How a job runs

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. If others near Lord's Wood need work, visits can be combined. A fixed quote is given before anything starts.

  1. We start with your penetration schedule, drawings or specification.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Unsuitable material is removed and the opening cleaned so the seal starts clean.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. We tell you about openings that need a different product.

Before we start on site

  • Move anything stored against the joints
  • Have the specification and drawings to hand
  • Arrange parking or a loading space

Getting a fixed quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or email drawings and photos.

Get a price

Related advice

Common problems we fix in Lord's Wood

Mixing products or improvising a detail breaks the link with the test evidence. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are the usual culprits.

Clients normally get in touch after noticing something like this:

  • Seals that don’t match their tested detail
  • Open linear gaps along the top of fire-resisting walls
  • Old intumescent sealant that has split away
  • Openings left by services added after handover

For a hospital such as Wessex Hospital (1.5 miles north-west of Lord's Wood), penetration sealing is normally phased ward by ward, with infection-control rules agreed first.

Comparing quotes

  • Proof of insurance
  • Will CSCS-carded applicators be on site?
  • Will RAMS and insurance details be available?
  • The terms of the workmanship guarantee

How to choose a sealant contractor

Common questions from Lord's Wood clients

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Lord's Wood?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes 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.

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

Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.

How do I request a quote?

The quote form is the simplest route, though you can also call the office on 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.

How long before the joints can be used?

Curing time varies by product, and we confirm it on the day.

Can you work while the building is occupied?

Usually, yes. We phase the work so most of the building stays in use, with each area protected and signed.

Which sealant will you use?

A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Are you fully insured?

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

Fire-rated sealing for Lord's Wood buildings

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. At about 64 miles from central London, Lord's Wood is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Halls and meeting rooms at places like St Mary's Church sometimes gain new services, and any compartment wall crossed needs the specified seal. Shop fits in centres such as Cannons Retail Park, 2 miles south-west of Lord's Wood, can bring new services through fire-resisting walls between units, which then need the specified seal.

Lord's Wood is about 2 miles north-east of Eastleigh, in Hampshire. If you’re looking for fire stopping in Lord's Wood, we can help. Across Hampshire, 723 places are covered, Lord's Wood among them. Southampton is covered too, some 6 miles away.

Work on service penetrations is covered throughout SO50. Sites close to Lord's Wood are covered too, including Highbridge (1 mile north-west), Brambridge (1 mile north-east), Colden Common (1 mile north-east), Nob's Crook (1 mile east) and Fisher's Pond (1 mile east). Nearby towns on our patch include Winchester (5 miles north), Gosport (15 miles south-east), Fareham (11 miles south-east), Horndean (15 miles east), Totton (9 miles south-west) and Chandler's Ford (3 miles west).

Near you in Lord's Wood

Recent enquiries here include premises near Crestwood Community School. The nearest railway station is Eastleigh station, roughly 1.6 miles south-west of the centre. A little further out are Eastleigh Museum (1.7 miles south-west) and Wolvesey Castle (5 miles north). Green spaces nearby include Shawford Down and Twyford Down.

Map of Lord's Wood © OpenStreetMap contributors

Keeping the joints sound

Cleaning and maintenance staff play a part too. Share these points with them:

  • Leave fire sealant to cure fully before covering it
  • File the specified details where the next contractor can find them
  • Arrange inspection before areas are covered up
  • Foam or ordinary sealant is never a fire-seal repair

Once the seals are in, tell other trades they exist and must not be disturbed. Any seal cut back for a new service needs reinstating to its tested detail.

Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.

For managing agents and facilities managers

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

What we can’t put right

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Issuing fire ratings or certificates for seals
  • Gaps in walls that were never built as compartment walls
  • Openings that need collars, wraps, batts or boards rather than sealant

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

Where we work in Lord's Wood

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

When to bring in a specialist

Redoing a failed joint typically costs more than getting it right at the outset, 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.

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Accreditations

Trusted. Accredited. Insured.