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

Fire stopping in Flowers Green

Fire stopping in Flowers Green, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Seals disturbed by maintenance and left open
  • Penetration schedules that need working through
  • Hidden openings found during inspections
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping near Flowers Green

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Site staff or a sealant specialist?

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Fire stopping for commercial buildings in Flowers Green

Facilities managers in Flowers Green often find open service penetrations when ceilings come down for other work. If a specification already covers those walls and floors, we can reseal to it. Where there isn’t one, the designer or fire engineer needs to set one first. We work on joints between fire-resisting walls and floors, linear gaps at wall heads and service gaps in risers, and what we are called in for most is open linear gaps along the top of fire-resisting walls and builders’ foam or ordinary silicone in compartment walls. Whoever orders the work in Flowers Green, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Barn and farm-building conversions near places like Flowers Green 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.

We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Flowers Green (BN27)
Region
East Sussex
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Keeping the joints sound

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:

  • Include service cupboards in routine inspections
  • Leave fire sealant to cure fully before covering it
  • Treat an open penetration as a priority repair
  • Get seals inspected before ceilings and boxing close

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.

Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned.

On site: what to expect

When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself typically taking longer where risers, ceiling voids or occupied floors have to be worked through in sequence. For a building around Flowers Green, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. We start with your penetration schedule, drawings or specification.
  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 so the seal starts clean.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. We tell you about openings that need a different product.

Before we start on site

  • Tell us which areas need to stay in use
  • Send any specification or drawings in advance
  • Warn occupants and staff about the work

Request a quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, phone 01277 525 020 or use the quote form.

Get a price

Related advice

Owners, agents and contractors

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.

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

Fire stopping in Flowers Green: the local picture

Flowers Green is about 46 miles from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail.

On a hospital site such as Amberstone Hospital, which lies west of Flowers Green, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Flowers Green is about 3 miles east of Hailsham, in East Sussex. Across the BN27 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 308 places across East Sussex fall within our area, including Flowers Green. For work in that direction, see our Brighton page, about 20 miles away.

Commercial sites across BN27 are covered. Just outside Flowers Green, we also work in Chapel Row (1 mile north), Golden Cross (1 mile south-west), Herstmonceux (1 mile north), Windmill Hill (1 mile north-east) and Stunts Green (1 mile north-west). A short drive away, we cover Eastbourne (7 miles south), Hastings (10 miles east), Bexhill-on-Sea (7 miles east), Seaford (12 miles south-west), Lewes (14 miles west) and Hailsham (3 miles west).

Local landmarks in Flowers Green

Recent enquiries here include premises near Woolpack Inn. The nearest railway station is Pevensey Bay station, about 4.4 miles south. Other landmarks nearby include Herstmonceux Castle (1 mile south-east) and Amberstone Hospital (2.2 miles west).

Map of Flowers Green © OpenStreetMap contributors

When to call us in Flowers Green

Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Deflection and building movement can open these gaps, and a product not tested for that movement may crack. The tested detail for a linear joint states the width and movement it covers.

Any of the following is a good reason to get the joints checked over:

  • Unsealed openings around new pipes and cables
  • Seals disturbed by maintenance and left open
  • Expanding foam used as fire stopping
  • Open linear gaps along the top of fire-resisting walls

In a school such as Herstmonceux Church of England Primary School, fire-rated sealant goes in around service penetrations where it is specified.

What your quote should include

  • Their public liability cover
  • How they handle RAMS and site documents
  • Will CSCS-carded applicators be on site?
  • How the existing material will be dealt with

Choosing a commercial sealant contractor

How the job changes by surface

Linear joints

Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers.

Plastic pipes

In a fire, plastic pipework melts away and leaves an opening. Some intumescent sealants are tested on smaller plastic pipes, but many need a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.

Flowers Green: questions and answers

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

Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Is a smaller place like Flowers Green outside your area?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Which sealant will you use?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Do you have third-party installer accreditation for fire stopping?

No, and we’d rather be clear about that. Some clients require third-party installer schemes even though the law doesn’t. If it doesn’t require one, we can install the specified fire-rated sealant to its tested detail.

Is it fine to apply new sealant on top of old?

No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

How do you deal with asbestos in old sealant?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. 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. We don’t remove asbestos-containing materials.

Does weather matter for sealant work?

It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

Accreditations

Trusted. Accredited. Insured.