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

Stedham fire stopping

Commercial sealant work in Stedham for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Expanding foam used as fire stopping
  • Old intumescent sealant that has split away
  • Service penetrations left open after M&E works
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping in Stedham

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 Stedham, done properly

On a fit-out or refurbishment, we follow the services contractors floor by floor. We work from your penetration schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. If you have snag lists that include open service penetrations and open linear gaps along the top of fire-resisting walls, we can put it right. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Stedham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller places such as Stedham 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.

The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Stedham (GU29)
Wider area
West Sussex
Cover
12 months on every job
Quote
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

Building owners, agents and FMs in Stedham

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

We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, which keeps the paperwork simple.

Honest limits

Some faults sit outside our scope, and we say so rather than covering them up:

  • Approving the work on behalf of building control
  • Reviewing a building’s overall fire safety
  • Deciding what a wall or floor needs, which belongs to the designer

If in doubt, phone 01277 525 020 or email drawings and photos and we will say what we think before you book.

What we seal

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

How the quote is worked out

Your fixed quote is built from the real scope. It allows for:

  • Backing rod, priming and other preparation
  • How accessible the joints are
  • The total length or number of joints
  • Induction, permit and paperwork requirements

There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we will price your job on its own details.

What we need to price the job

Diagnosis starts before we arrive. Let us know:

  • Where the site is, with the postcode
  • Any dates the work must fit around
  • Drawings or a marked-up plan, if available
  • Whether an asbestos survey exists

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, speak to us on 01277 525 020 or email the details over.

Compartment walls and floors in Stedham

Stedham is about 46 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

Large healthcare estates like Midhurst Community Hospital (to the east of Stedham) change their services often, so penetration seals are worth checking after M&E work. Holiday works at schools like Stedham Primary School often leave service openings to seal before pupils return. Halls and meeting rooms at places like The Parish Church of St James sometimes gain new services, and any compartment wall crossed needs the specified seal.

Stedham is about 7 miles east of Petersfield, in West Sussex. Across the GU29 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 373 places in West Sussex. We also cover Portsmouth, around 19 miles from Stedham.

If you need fire stopping in GU29, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on The Street, The Alley and Queens Street are within our area. Close to Stedham, our area also takes in Iping (1 mile north-west), Woolbeding (1 mile east), Minsted (1 mile south-west), Bepton Common (1 mile south-east) and Midhurst (1 mile south-east). Further afield, our area takes in Bognor Regis (15 miles south), Chichester (11 miles south), Storrington (15 miles east), Billingshurst (14 miles east), Portfield (11 miles south) and Yapton (14 miles south-east).

Around Stedham

Locally, jobs take us to sites close to Midhurst Rother College and the streets around them. Other landmarks nearby include Midhurst Museum (1.6 miles east) and Lodsworth Castle (4.5 miles east). The countryside around Stedham includes Iping and Stedham Commons and Wheeler's Down.

Map of Stedham © OpenStreetMap contributors

Aftercare for building managers

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

  • Ask the designer to confirm details early on refits
  • Include service cupboards in routine inspections
  • File the specified details where the next contractor can find them
  • Check with the data sheet before painting over fire sealant

After the work, brief anyone else working in the area that the openings are now sealed. If a seal has to be opened for a new service, it should be reinstated to the same detail, by someone who knows the system.

Keep a register of where seals are and what they are made of. When a new service goes through, everyone knows which product and detail to match, and it helps at inspections.

Different surfaces, different methods

Cables and cable bundles

Data cabling added after handover is a regular cause of open service penetrations. We reseal around them to the specified detail, and any bundle too large for sealant alone is flagged.

Linear joints

Head-of-wall gaps, slab edges and wall junctions are linear joints. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers and the installation has to fit inside those limits.

Common questions from Stedham clients

Is Stedham too small for you to travel to?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

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

Yes. We install fire-rated and intumescent sealant where it is specified. Each seal follows the tested detail, and rooms are done in turn.

Can the sealant be colour-matched?

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.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

How long do sealant joints last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Do you hold CHAS accreditation?

Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

How long does a job like this take?

It depends on the scope, though a typical visit typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. Larger or phased jobs take longer, and we will give you a timescale with the quote.

How a job runs

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes anything from one day to a planned run of visits, depending on the number of seals and the access, and our waste is bagged and taken away as we go. For work around Stedham, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. First we go through the drawings, schedule or specification for the seals.
  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. 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

  • Explain the parking and delivery arrangements
  • Share your working hours and any access restrictions
  • Move anything stored against the joints

Request a quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, phone 01277 525 020 or email us.

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