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

Fire-rated sealing and fire stopping in Hadlow Down, East Sussex

Fire-rated and intumescent sealing of service penetrations and linear gaps in Hadlow Down and across East Sussex. CHAS accredited and fully insured, with a 12-month guarantee.

  • Fire stopping installed outside its tested range
  • Damaged fire seals in risers and voids
  • Openings left by services added after handover
1
Send details
Tell us about the site, with photos if you have them.
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
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Need fire stopping in Hadlow Down?

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

Fire stopping in Hadlow Down

Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. We use sealant where it is the specified product, and we tell you when a detail calls for something else. We work on pipe penetrations, cable penetrations and linear gaps at wall heads, and what we are called in for most is expanding foam used as fire stopping and service penetrations left open after M&E works. A specialist sealant contractor works differently from a general builder: on jobs in Hadlow Down, preparation and product choice get the time they need.

Barn and farm-building conversions near places like Hadlow Down often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

A 12-month guarantee applies to all our work in East Sussex. Should something we installed fail, give us a call on 01277 525 020 or use the quote form and we’ll come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Hadlow Down (TN22)
Region
East Sussex
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026

Maintenance after handover

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Ask which product is in place before decorating
  • Have penetrations checked while they can still be seen
  • Include service cupboards in routine inspections
  • Brief every trade that openings they make must be sealed

Allow the manufacturer’s stated cure time before boxing in or decorating. Some fire-rated sealants accept paint and some don’t, so check the product data first.

Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there instead of being left for someone else.

Our process

Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For a building around Hadlow Down, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. The specification and schedule come first, so we know which details apply.
  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. Foam, ordinary sealant and debris come out.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Before we start on site

  • Share the asbestos register for older buildings
  • Share your working hours and any access restrictions
  • Make sure the joints can be reached

Quotes

A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or use the quote form to discuss it first.

Get a price

Related advice

Questions about Hadlow Down

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Hadlow Down?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Is a hospital such as Crowborough War Memorial Hospital somewhere you can work?

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.

Do you offer coloured sealant?

Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.

Can the building stay open while you work?

Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.

Which sealant will you use?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Can you handle several sites?

Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.

Are you CHAS accredited and on Constructionline?

Yes. We’re CHAS accredited and a Constructionline member.

When to call us in Hadlow Down

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Deflection and building movement can open these gaps. Linear joint details set a width range and movement capability, and the seal has to sit within them.

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

  • Builders’ foam or ordinary silicone in compartment walls
  • Damaged fire seals in risers and voids
  • Openings left by services added after handover
  • Head-of-wall gaps with no fire seal

Holiday works at schools like St Mark's Church of England Primary School often leave service openings to seal before pupils return.

What to look for in a quote

  • Can the work be phased to keep areas open?
  • Whether primer will be used where the manufacturer specifies it
  • Are they CHAS accredited or on Constructionline?
  • Will CSCS-carded applicators be on site?

Our contractor checklist

General trades versus a specialist

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

What the job involves on each surface

Risers and ceiling voids

Risers and ceiling voids hold most of a building’s service penetrations. Access to these areas is planned with you in advance along with any permits your site needs.

Linear joints

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

Why it’s worth doing now in Hadlow Down

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. Halls, stores and units around places like Hadlow Down may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why clients in Hadlow Down choose us

  • One contact handling all your sites
  • Products installed to the manufacturer’s instructions
  • Over 20 years of commercial sealing
  • Old sealant cut out, never sealed over

Take a look at our cost guide and our accreditations and insurance.

Fire stopping in Hadlow Down: the local picture

In England, Approved Document B covers fire stopping of 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. We install whatever has been specified, to the product’s tested detail. Central London is about 37 miles from Hadlow Down. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal.

Offices at parks like Tylers Business Park, 2.4 miles south of Hadlow Down, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. Theatres, wards and plant rooms at sites like Crowborough War Memorial Hospital, 3.8 miles to the north of Hadlow Down, all have compartment walls crossed by services.

Hadlow Down is about 4 miles south of Crowborough, in East Sussex. Looking for fire stopping in Hadlow Down? We can help, as we do across East Sussex. Hadlow Down is one of 308 places in East Sussex on our list for service penetrations. Sites around Brighton have their own page, roughly 18 miles from Hadlow Down.

Postcode districts covered here: TN22. If your site is on Waghorns Lane, School Lane and St Marks Field or close by, we can quote for service penetrations. Close to Hadlow Down, our area also takes in Etchingwood (2 miles south-west), Buxted (2 miles west), Potter's Green (2 miles south-west), Blackboys (2 miles south) and Framfield (3 miles south-west). Nearby towns on our patch include Eastbourne (15 miles south), Lewes (11 miles south-west), Hailsham (10 miles south), Crowborough (4 miles north), Uckfield (4 miles south-west) and Newhaven (15 miles south).

Landmarks near Hadlow Down

The nearest railway station is Buxted station, about 2.1 miles west. Well-known places in the area include Crowborough War Memorial Hospital (3.8 miles north) and Tickerage Castle (2.3 miles south-west). The countryside around Hadlow Down includes Selwyns Wood.

Map of Hadlow Down © OpenStreetMap contributors
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