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

Fire stopping in Cross in Hand

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Cross in Hand. Send photographs or drawings for a fixed quote.

  • Unsealed joints where partitions meet the slab
  • Openings found when ceilings come down for a refit
  • Old intumescent sealant that has split away
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping across Cross in Hand

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

General trades versus a specialist

Some joints are best left to specialists: 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.

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.

How we handle fire stopping in Cross in Hand

Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it. With no specification in place, the first step sits with your designer or fire engineer, not with us. Site teams most often ask us about unsealed openings around new pipes and cables and expanding foam used as fire stopping, across joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and service gaps in risers. Looking for mastic applicators who cover Cross in Hand? Mastic Doctor has worked for contractors, FMs and building owners since 2005.

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

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Place
Cross in Hand (TN21)
Region
East Sussex
Cover
12 months on our workmanship
Price
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Compartments and services around Cross in Hand

Fire stopping of openings and penetrations in England falls under Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Either way, we install the specified product to its tested detail. Cross in Hand is about 39 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.

Schools such as Cross-in-Hand Church of England Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards. Hospital estates such as Uckfield Community Hospital (4.9 miles west of Cross in Hand) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.

Cross in Hand is about 5 miles east of Uckfield, in East Sussex. We cover Cross in Hand and the rest of East Sussex, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 308 places across East Sussex fall within our area, Cross in Hand among them. For work in that direction, see our Brighton page, about 18 miles away.

Anyone looking for fire stopping in TN21 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Among the streets we cover are Fir Grove Road, Windmill Place and Dads Hill. Close to Cross in Hand, our area also takes in Roser's Cross (1 mile south-west), Waldron (1 mile south-west), Heathfield (2 miles east), Sandy Cross (2 miles south-east) and Lions Green (2 miles south). Further afield, our area takes in Eastbourne (13 miles south), Bexhill-on-Sea (14 miles south-east), Seaford (14 miles south), Lewes (11 miles south-west), Hailsham (8 miles south) and Crowborough (6 miles north).

What’s near Cross in Hand

Recent enquiries here include premises near Passingworth Park and the streets around them. The nearest railway station is Buxted station, about 3.9 miles west. Nearby you will also find Sussex Farm Museum (2.8 miles south) and Tickerage Castle (2.9 miles west). Open spaces near Cross in Hand include Selwyns Wood.

Map of Cross in Hand © OpenStreetMap contributors

Why deal with it now?

An improvised seal can look finished while offering no tested performance. The fix is to remove it and reinstall to the detail, so it makes sense to get it right first time. Halls, stores and units around places like Cross in Hand may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

Why choose Mastic Doctor in Cross in Hand

  • 12 months’ guarantee on every job
  • Fully insured, including public liability cover
  • Health and safety: CHAS accredited
  • Sealing commercial buildings since 2005

Read how commercial sealant jobs are priced or our accreditations and insurance.

How the job changes by surface

Plastic pipes

Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail.

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.

Do you need fire stopping in Cross in Hand?

A common fault is a product that was never fire-rated in the first place: expanding foam or a general-purpose sealant pushed into a gap to tidy it. The opening looks sealed but has no fire test evidence behind it.

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

  • Penetration schedules that need working through
  • Unsealed openings around new pipes and cables
  • Expanding foam used as fire stopping
  • Fire seals cut back for extra cables and never reinstated

For a unit at a site such as Station Road Industrial Estate, 1.5 miles to the east of Cross in Hand, new power or data runs between office and warehouse can breach a compartment wall.

Questions to ask before you book

  • Is the sealant right for the movement and the substrate?
  • What the guarantee covers, and for how long
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • How the joint faces will be prepared and primed

Choosing a commercial sealant contractor

What sealant work can’t fix

Being straight saves everyone time. New sealant won’t cure:

  • Approving the work on behalf of building control
  • Deciding what a wall or floor needs, which belongs to the designer
  • Construction that lacks the fire resistance the seal relies on

If you’re not sure, just call the office on 01277 525 020 or email drawings and photos and we’ll give you a straight answer before you book.

What we seal

  • Joints between fire-resisting walls and floors
  • Pipe penetrations
  • Small duct penetrations where the tested detail allows
  • Cable penetrations
  • Service gaps in risers
  • Linear gaps at wall heads

Questions we are asked in Cross in Hand

Will you take on work at estates like Station Road Industrial Estate, close to Cross in Hand?

Yes, sites like Station Road Industrial Estate are within our area, along with the rest of Cross in Hand. A few photographs and the unit address let us price the work.

Do you take on work at healthcare sites like Uckfield Community Hospital?

Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.

How do we ask for a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.

What happens if old sealant might contain asbestos?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

Is any job too small?

We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.

Is BS 476 being phased out?

In England, references to the older BS 476 national classes are being removed from Approved Document B from 2 September 2029, subject to the Government’s transitional arrangements. The European route, BS EN 13501-2, then applies. Your designer will choose products with the right evidence.

When is resealing likely to be due?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Our process

The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. For work around Cross in Hand, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Old or wrong materials are cut out.
  4. Mineral wool or other backing is fitted where required.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. Completed areas are checked with you, with the records agreed when we quoted.

Before we start on site

  • Let us know about inductions and permits
  • Send any specification or drawings in advance
  • Explain the parking and delivery arrangements

Ask for a quote

To get a fixed quote, call 01277 525 020 or send details through our quote form. Our quote form is another easy route.

Get a quick quote

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