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

Fire-rated sealing and fire stopping in Dumpford, West Sussex

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

  • Open linear gaps along the top of fire-resisting walls
  • Openings found when ceilings come down for a refit
  • Fire-stopping items raised at inspection or handover
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping for businesses in Dumpford

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How we handle fire stopping in Dumpford

Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. Each seal follows the manufacturer’s tested detail rather than guesswork. We work on small duct penetrations where the tested detail allows, linear gaps at wall heads and pipe penetrations, and what we’re called in for most is openings found when ceilings come down for a refit and fire sealant pulled out of the opening. Facilities teams, main contractors and managing agents in Dumpford tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

A job near Dumpford is normally planned around one visit, with the specification and photos sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Place
Dumpford (GU31)
Region
West Sussex
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Quoting for work in Dumpford

There’s no standard rate for sealant work, since sites vary so much. What we take into account:

  • Which sealant the job calls for
  • Phasing around occupants
  • Whether old sealant has to be cut out first
  • Quantities, in metres or numbers

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.

Details that help us quote

Diagnosis starts before we arrive. Tell us:

  • The product your specification calls for
  • Clear photos of the problem areas
  • When you need the work done
  • Access details, including height

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, phone 01277 525 020 or email the details over.

Aftercare for building managers

For the best life from the joints:

  • Arrange inspection before areas are covered up
  • Brief every trade that openings they make must be sealed
  • Keep general-purpose fillers away from compartment walls
  • Record which product was used where

Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open, not months later.

On site: what to expect

At the end of each section, the masking comes off, the area is cleaned and every joint is checked with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. For work around Dumpford, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  1. First we go through the drawings, schedule or specification for the seals.
  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. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Preparing the site

  • Tell us what induction or permit system the site runs
  • Make sure the joints can be reached
  • Warn occupants and staff about the work

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. If you have questions first, call the office on 01277 525 020 or send details through our quote form.

Ask for a quote

Advice

Do you need fire stopping in Dumpford?

Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Movement in the frame or slab can open the joint, and the wrong product can split as a result. The tested detail for a linear joint states the width and movement it covers.

If one of these sounds familiar, it’s time for a closer look:

  • Penetration schedules that need working through
  • Service penetrations left open after M&E works
  • Fire-rated sealant that has cracked or shrunk back
  • Open linear gaps along the top of fire-resisting walls

For a hotel such as Southdowns Hotel, under half a mile west of Dumpford, penetration seals are worth checking after any refit or services upgrade.

What to look for in a quote

  • How joint depth will be controlled
  • Can the work be phased to keep areas open?
  • Will failed sealant be removed rather than covered?
  • What site paperwork they can supply

Questions to ask before you appoint anyone

Questions we’re asked in Dumpford

Is Midhurst Business Centre, near Dumpford, within your area?

Yes. Estates, retail parks and business parks around Dumpford, Midhurst Business Centre among them, are all within reach. A few photos and the unit address let us price the work.

Would you work within a site like Midhurst Community Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can you seal any opening with fire-rated sealant?

No. A sealant’s evidence covers set services, gaps and wall or floor types. Outside that, a different product is needed.

How long will the new sealant last?

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

Which standards are fire seals tested to?

In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. EI 60 means integrity and insulation for 60 minutes in the tested arrangement and the installation has to match the test.

What do you charge?

Each job is quoted on its own details. To get one, ring 01277 525 020 or email us.

Is any job too small?

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

Leave it or put it right?

The longer openings stay, the more there tend to be: each new service adds to the list. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. Halls, stores and units around places like Dumpford may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

Pricing service penetrations depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.

Why choose Mastic Doctor in Dumpford

  • Products installed to the manufacturer’s instructions
  • Public liability insurance in place
  • A fixed quote before work starts
  • Failed material removed, not covered up

Read our cost guide or our accreditations.

Compartment walls and floors in Dumpford

Dumpford is about 47 miles from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal. 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. What we install is set by the specification, and it goes in to the tested detail.

Older community buildings such as St George's Church that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Offices at parks like Midhurst Business Centre (to the east of Dumpford) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

Dumpford is about 5 miles east of Petersfield, in West Sussex. Looking for fire stopping in Dumpford? We can help. Across West Sussex, 373 places are covered, including Dumpford. Portsmouth is covered too, around 17 miles from Dumpford.

Anyone looking for fire stopping in GU31 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Terwick Lane, Mill Lane and Trotton Road or nearby, we can quote for service penetrations. Sites close to Dumpford are covered too, including Trotton (1 mile north-east), Elsted Marsh (1 mile south), Ingrams Green (1 mile south-east), Elsted (2 miles south-west) and Nyewood (2 miles west). A short drive away, we cover Bognor Regis (15 miles south-east), Chichester (11 miles south), Portfield (11 miles south), Yapton (15 miles south-east), Nyetimber (15 miles south) and Midhurst (3 miles east).

Around Dumpford

In Dumpford, that means premises near The Keeper's Arms Public House. The nearest railway station is Liss station, about 4.9 miles north-west of the centre. A little further out are Midhurst Museum (3.5 miles east) and Midhurst Community Hospital (3.6 miles east). For a walk, there’s Wheeler's Down and Iping and Stedham Commons.

Map of Dumpford © OpenStreetMap contributors

Owners, agents and contractors

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Dumpford can sit alongside others in a wider programme across West Sussex.

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.

Accreditations

Trusted. Accredited. Insured.