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

Northbridge Street fire stopping

Fire stopping for Northbridge Street, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Fire stopping installed outside its tested range
  • Penetration schedules that need working through
  • Expanding foam used as fire stopping
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Fire stopping for businesses in Northbridge Street

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

About our fire stopping in Northbridge Street

Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4, with results classified under BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. We work on pipe penetrations, cable penetrations and linear gaps at wall heads, and the usual reasons a site gets in touch are fire seals cut back for extra cables and never reinstated and fire-rated sealant that has cracked or shrunk back. Facilities teams, main contractors and managing agents in Northbridge Street tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Barn and farm-building conversions near places like Northbridge Street 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.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Place
Northbridge Street (TN32)
Region
East Sussex
Cover
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

When it isn’t the sealant

We check first that sealant really is the fix. It isn’t the answer for:

  • Approving the work on behalf of building control
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Fire doors, dampers or other fire safety equipment

Not sure which it is? You can call 01277 525 020 or email drawings and photos and we’ll tell you honestly before you book.

Where we work in Northbridge Street

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

How the quote is worked out

There’s no standard rate for sealant work, because every site is different. What we look at:

  • Which sealant the job calls for
  • Quantities, in metres or numbers
  • Distance, for remote addresses
  • The size and state of each joint

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

What we need to price the job

To price the job accurately, we need a clear picture of the site. Send us:

  • The asbestos register, for older buildings
  • Whether the building will be occupied during the work
  • The site address and postcode
  • Drawings or a marked-up plan, if available

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email the details over.

Should maintenance staff do it?

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

Compartment walls and floors in Northbridge Street

Northbridge Street lies roughly 43 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. In England, Approved Document B covers fire stopping of openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

For a building such as The Parish Church of St Mary, new heating or data runs are the usual reason penetrations need sealing. Tenant changes at parks like Bodiam Business Park, 1.9 miles to the east of Northbridge Street, bring new data and services, and openings through fire-resisting walls need the specified seal.

Northbridge Street is about 9 miles north-west of Hastings, in East Sussex. Northbridge Street sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Northbridge Street is one of 308 places we cover in East Sussex for service penetrations. Brighton is covered too, some 29 miles away.

If you need fire stopping in TN32, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on Church Lane, Coronation Cottages and Andrews Close are within our area for service penetrations. Close to Northbridge Street, our area also takes in Salehurst (1 mile east), Robertsbridge (1 mile south-west), John's Cross (2 miles south), Mountfield (3 miles south) and Oxley's Green (4 miles south-west). Bigger towns within reach include Hastings (9 miles south-east), Bexhill-on-Sea (10 miles south), Hailsham (13 miles south-west), Crowborough (14 miles west), St Leonards (10 miles south) and Hastings Old Town (10 miles south-east).

Around Northbridge Street

We work on buildings around Robertsbridge Community College and The Salehurst Halt Public House. The closest station to Northbridge Street is Robertsbridge station, about 0.7 miles south-west. Nearby you will also find Ticehurst House Hospital (5.4 miles north-west).

Map of Northbridge Street © OpenStreetMap contributors

From enquiry to sign-off

Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. For a building around Northbridge Street, 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 ask for the product and detail your designer has specified.
  2. Openings are measured and grouped by detail.
  3. Improvised fillers and failed sealant are removed.
  4. Mineral wool or other backing is fitted where required.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Preparing the site

  • Agree which areas must stay open
  • Clear stock, furniture or equipment away from the joints
  • Share the asbestos register for older buildings

Quotes

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or use the quote form if you’d rather talk the job through.

Get a quick quote

Advice

What we are called out for in Northbridge Street

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.

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

  • Penetration schedules that need working through
  • Fire-rated sealant that has cracked or shrunk back
  • Non-fire-rated filler around services
  • Fire seals cut back for extra cables and never reinstated

Large healthcare estates like Ticehurst House Hospital (to the north-west of Northbridge Street) change their services often, so penetration seals are worth checking after M&E work.

Questions to ask before you book

  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Do they follow the manufacturer’s priming guidance?
  • Can the work be phased to keep areas open?
  • Whether old or failed sealant will be cut out, not overlaid

Questions to ask before you appoint anyone

Aftercare for building managers

A few simple habits keep the new joints working:

  • Put resealing into every M&E and fit-out package
  • Check with the data sheet before painting over fire sealant
  • Arrange inspection before areas are covered up
  • Keep product data and details in the fire safety file

During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.

Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, which saves guesswork.

Questions we are asked in Northbridge Street

Can you work on a hospital site such as Ticehurst House Hospital?

Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.

Does your area include sites such as Bodiam Business Park, near Northbridge Street?

Yes. We cover Northbridge Street and the area around it, including industrial estates, business parks and retail parks such as Bodiam Business Park. Send details of the unit and the work through our quote form for a quick quote.

How do we ask for a quote?

There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.

Will you sign off the seals for us?

No. Approval sits with the designer, principal designer or building control. We’ll confirm the products and details used and agree any further records when we quote.

What does an EI 60 rating mean?

BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Classification follows BS EN 13501-2 as E for integrity and I for insulation, with a time such as EI 60 or EI 120. The rating applies to the product as tested.

Can you reseal penetrations after our M&E works?

Yes. Send the schedule or marked-up drawings and the specified product details for a fixed quote. Work can run area by area behind the M&E trades.

How long do sealant joints last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

Accreditations

Trusted. Accredited. Insured.