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

Fire Stopping in Hambrook

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

  • Service penetrations left open after M&E works
  • Fire-rated sealant that has cracked or shrunk back
  • Seals disturbed by maintenance and left open
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Fire stopping for Hambrook sites

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

Fire stopping in Hambrook

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 raise it with you if it falls outside. Site teams most often ask us about unsealed openings around new pipes and cables and fire stopping installed outside its tested range, across cable penetrations, linear gaps at wall heads and service gaps in risers. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Hambrook it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Rural conversions around Hambrook 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.

The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Hambrook (PO18)
Wider area
West Sussex
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

Service penetrations in Hambrook buildings

Hambrook is about 56 miles from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal. There are four care or nursing homes within about 2 miles of Hambrook. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product.

Tenant changes at parks like Hambrook Business Park, 0.7 miles to the north of Hambrook, bring new data and services, and openings through fire-resisting walls need the specified seal. Schools such as Chidham Parochial Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.

Hambrook is about 5 miles west of Chichester, in West Sussex. Businesses, contractors and managing agents in Hambrook use us for work on service penetrations. Hambrook is one of 373 places we cover in West Sussex. Our Portsmouth page has more on work in that area.

We take on service penetrations across the PO18 postcode area, whatever the building. We cover commercial and managed buildings on Kingfisher Close, Dragonfly Grove and Pipistrelle Way. Just outside Hambrook, we also work in Nutbourne (1 mile south), Funtington (1 mile north-east), West Ashling (1 mile east), Chidham (1 mile south) and Racton (2 miles north). A short drive away, we cover Bognor Regis (10 miles south-east), Chichester (5 miles east), Selsey (9 miles south-east), Portfield (5 miles east), Yapton (12 miles east) and East Wittering (6 miles south).

Landmarks near Hambrook

Around Hambrook, our work takes us to commercial buildings near Bourne Community College and the streets around them. For rail, the closest station is Nutbourne station, roughly 0.6 miles south of the centre. Nearby you’ll also find Havant War Memorial Hospital (4.7 miles west) and Emsworth Museum (2.5 miles west). For a walk, there’s Nutborne Marshes and Stoke Down.

Map of Hambrook © OpenStreetMap contributors

How the job changes by surface

Cables and cable bundles

Single cables and small bundles are often within a fire-rated sealant’s tested detail. The detail limits bundle size and the gaps between and around cables and we work within those limits.

Linear joints

Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in.

Signs you need fire stopping in Hambrook

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is how unsuitable products and improvised details end up in compartment walls.

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

  • Seals disturbed by maintenance and left open
  • Service penetrations left open after M&E works
  • Hidden openings found during inspections
  • Non-fire-rated filler around services

In a building such as St Wilfrid's Church and Hall, any service penetration through a fire-resisting wall should be sealed to the specified detail.

Before you book anyone

  • Health and safety accreditation such as CHAS
  • Whether their applicators hold CSCS cards
  • The named product and why it was chosen
  • Their public liability cover

Questions to ask before you appoint anyone

Diagnose, treat, sign off

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself typically taking a single visit for a short list of penetrations, or a phased programme for a whole building. If others near Hambrook need work, visits can be combined, which keeps travel down. You will have a fixed quote before work starts.

  1. We read the specification, drawings or penetration schedule you send 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. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • Share your working hours and any access restrictions
  • Tell us which areas need to stay in use
  • Confirm the product named in the specification

Getting a fixed quote

Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or use the quote form.

Get a quick quote

Read more

Commercial clients in Hambrook

Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Hambrook. One quote can cover more than one site, which keeps the paperwork simple.

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.

Site staff or a sealant specialist?

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. That’s why many clients bring in a specialist from the beginning.

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Your questions answered

Is Hambrook too small for you to travel to?

No. Places such as Hambrook are covered as much as the big towns. We work across Greater London and the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Could you schedule work at a campus like University of Chichester for the vacation?

Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

How long does a typical visit take?

It depends on the scope, though a typical visit typically takes a single visit for a short list of penetrations, or a phased programme for a whole building. For bigger or phased jobs, we will set out a timescale with the quote.

Will you quote for a small job?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Can you seal any opening with fire-rated sealant?

No. Sealant is the right product only where the tested detail says so. Large openings, many plastic pipes and some ducts need collars, wraps, batts or boards, and we’ll tell you when that applies.

Are you insured?

Yes. We are fully insured, and the certificate can go with your quote.

What happens if it’s left?

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed, so earlier action pays back. Older rural buildings around Hambrook move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

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

Why clients in Hambrook choose us

  • Work to your specification and the manufacturer’s guidance
  • Joints cleaned back to sound surfaces
  • Our applicators hold CSCS cards
  • Public liability insurance in place

Take a look at our cost guide and how we’re accredited.

Accreditations

Trusted. Accredited. Insured.