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

Fire-rated sealing and fire stopping in Green Street, East Sussex

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Green Street and the surrounding area. Send photographs or drawings for a fixed quote.

  • Seals disturbed by maintenance and left open
  • Open linear gaps along the top of fire-resisting walls
  • Fire sealant pulled out of the opening
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Need fire stopping in Green Street?

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 Green Street

It helps to set out our role at the start. The designer, fire engineer or building control decides which fire stopping is required; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance in Green Street and nearby. If you have seals disturbed by maintenance and left open and builders’ foam or ordinary silicone in compartment walls, we can put it right. Looking for mastic applicators who cover Green Street? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

For a smaller site near Green Street, we plan to do all the penetrations in one go, with the specification and photos sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.

Work we carry out in East Sussex comes with a 12-month guarantee. Should something we installed fail, phone 01277 525 020 or send details through our quote form and we’ll come back to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Green Street (TN38)
Region
East Sussex
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026

Keeping the joints sound

Regular inspection catches problems early. In particular:

  • Have penetrations checked while they can still be seen
  • Record which product was used where
  • Ask the designer to confirm details early on refits
  • Don’t let anyone top up a fire seal with the wrong product

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

A simple record of seal locations and products helps. It tells the next contractor exactly what to reinstate, and it helps at inspections.

Site staff or a sealant specialist?

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

Green Street: questions and answers

Can you work on a hospital site such as Bexhill Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Can you seal penetrations in a hotel in Green Street after a refit?

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

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

What hours do you work?

We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

Will you just go over the old sealant?

No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

Can staff carry on working while you are here?

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

Is any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

How a job runs

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Smaller jobs around Green Street can be grouped with others nearby. A fixed quote is given before anything starts.

  1. First we confirm the product and tested details named in the specification.
  2. We sort the openings by the detail each one needs.
  3. Improvised fillers and failed sealant are removed.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. Completed areas are checked with you, with the records agreed when we quoted.

Getting the site ready

  • Tell staff and tenants when we will be in
  • Send your site hours and access windows
  • Confirm the product named in the specification

Request a quote

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Get a quick quote

Advice

What happens if it’s left?

Open penetrations multiply: every new cable or pipe adds another. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. For buildings around smaller places like Green Street, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.

Why appoint us

  • Work carried out by CSCS-carded applicators
  • Specification-led, product-correct work
  • A fixed quote before work starts
  • Over 20 years of commercial sealing

See our cost guide or our accreditations and insurance.

How the job changes by surface

Metal pipes

Sealant details often cover copper and steel pipework. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on, so we check each one.

Cables and cable bundles

Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables, so we check before sealing.

Building owners, agents and FMs in Green Street

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Penetration seals near Green Street

Green Street lies roughly 50 miles out 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. There are several hotels within about 2 miles of Green Street. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal.

Halls and meeting rooms at places like The Parish Church of St George sometimes gain new services, and any compartment wall crossed needs the specified seal. Office fit-outs on sites such as Pebsham Rural Business Centre, 1.8 miles to the south of Green Street, add cabling and pipework through fire-resisting walls, and fire-rated sealant goes in where the specification calls for it. Hospital estates such as Bexhill Hospital (to the south-west of Green Street) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.

Green Street is about 2 miles west of Hastings, in East Sussex. We cover Green Street, with the same fixed quotes and 12-month guarantee as everywhere else. Across East Sussex, 308 places are covered, including Green Street. Our Brighton page has more on work in that area (28 miles or so).

Anyone looking for fire stopping in TN38 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Close to Green Street, our area also takes in Crowhurst (1 mile north-west), Hollington (2 miles east), Bulverhythe (2 miles south), Silverhill (2 miles east) and Baldslow (2 miles north-east). Further afield, our area takes in Eastbourne (12 miles south-west), Bexhill-on-Sea (3 miles south-west), Hailsham (11 miles west), Polegate (12 miles west), Hastings Old Town (4 miles south-east) and Old Town (13 miles south-west).

Local landmarks in Green Street

Recent enquiries here include premises near The St Leonards Academy, Filsham Reedbed and The Plough Inn and the streets around them. For rail, the closest station is Crowhurst station, about 0.8 miles north-west of the centre. Nearby you will also find Hastings Castle (3.6 miles south-east) and Bexhill Hospital (2.5 miles south-west). Open spaces near Green Street include Church Wood and Robsack Wood and Senlac Hill.

Map of Green Street © OpenStreetMap contributors
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