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

Fire Stopping in Hazel Street

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

  • Head-of-wall gaps with no fire seal
  • Seals that don’t match their tested detail
  • Seals disturbed by maintenance and left open
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Need fire stopping in Hazel Street?

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

Fire stopping for commercial buildings in Hazel Street

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. If you have open linear gaps along the top of fire-resisting walls and fire stopping installed outside its tested range, we can put it right, on cable penetrations, service gaps in risers and pipe penetrations alike. A specialist sealant contractor works differently from a general builder: in Hazel Street, that means joint design, primers and backing rod as standard.

Around smaller places like Hazel Street, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Hazel Street (TN12)
Wider area
Kent
Cover
12 months on our workmanship
Price
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026

How the quote is worked out

A fixed quote reflects the actual work. It takes account of:

  • The product specified
  • Travel to remote or island sites
  • The site’s rules and procedures
  • The total length or number of joints

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.

Details that help us quote

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

  • The site address and postcode
  • How the joints are reached, and at what height
  • Clear photos of the problem areas
  • What the building is and how it’s used

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or use the quote form with what you know.

Common questions from Hazel Street clients

Is Hazel Street too small for you to travel to?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Can you work on a hospital site such as Tunbridge Wells Hospital?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Will you quote for a small job?

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

What does an EI 60 rating mean?

BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Results are classified under BS EN 13501-2. The rating applies to the product as tested.

Will you come and look before quoting?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit before quoting.

How do you choose the sealant?

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 approve fire stopping for building control?

No. Approval sits with the designer, principal designer or building control. We will confirm the product and detail installed and agree any further records when we quote.

What sealant work can’t fix

Not every problem is a sealant problem, and we are upfront when that’s the case. These need a different solution:

  • Approving the work on behalf of building control
  • Openings that need collars, wraps, batts or boards rather than sealant
  • Designing or specifying fire stopping, which sits with the designer or fire engineer

If in doubt, ring 01277 525 020 or email us and we will say what we think.

Where we work in Hazel Street

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

When to bring in a specialist

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Paperwork matters too. 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.

Our process

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself normally taking longer where risers, ceiling voids or occupied floors have to be worked through in sequence. For a building around Hazel 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. 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. We gun the sealant in to the specified depth around each service and tool it.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Before we start on site

  • Confirm the product named in the specification
  • Tell us what induction or permit system the site runs
  • Point out parking and an unloading spot

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

Get a price

Related advice

Aftercare for building managers

Regular inspection catches problems early. In particular:

  • Put resealing into every M&E and fit-out package
  • Arrange inspection before areas are covered up
  • Ask the designer to confirm details early on refits
  • File the specified details where the next contractor can find them

Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.

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.

Fire stopping around Hazel Street: how the place shapes the job

Fire stopping of openings and penetrations in England falls under Approved Document B. 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. Our part stays the same: the specified product, installed to its tested detail. Central London is about 34 miles from Hazel Street. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls, and the gaps need sealing with the specified product.

Holiday works at schools like Horsmonden Primary School often leave service openings to seal before pupils return. Hospital estates such as Tunbridge Wells Hospital (5.1 miles west of Hazel Street) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. Halls and meeting rooms at places like Church of St Margaret sometimes gain new services, and any compartment wall crossed needs the specified seal.

Hazel Street is about 7 miles east of Royal Tunbridge Wells, in Kent. Across the TN12 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Hazel Street is one of 931 places we cover in Kent. For work in that direction, see our Brighton page (32 miles or so).

Postcode districts covered here: TN12 for service penetrations. Among the streets we cover are Lamberhurst Road and Spelmonden Road, and sites on any of them can send details for a fixed quote. Just outside Hazel Street, we also work in Horsmonden (1 mile north-east), Smallbridge (1 mile south-east), Capel Cross (1 mile east), Broad Ford (1 mile east) and Palmer's Green (2 miles north). Further afield, our area takes in Maidstone (10 miles north-east), Sevenoaks (15 miles north-west), Royal Tunbridge Wells (7 miles west), Tonbridge (8 miles north-west), Kings Hill (10 miles north) and Foley Park (11 miles north-east).

Around Hazel Street

We work on buildings around The Gun And Spitroast Public House And Rear Courtyard, among other places. For rail, the closest station is Paddock Wood station, about 3.9 miles north. Other landmarks nearby include Old Scotney Castle (2.7 miles south) and Tunbridge Wells Hospital (5.1 miles west). The countryside around Hazel Street includes Bewl Water.

Map of Hazel Street © OpenStreetMap contributors

Commercial clients in Hazel Street

Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Accreditations

Trusted. Accredited. Insured.