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

Fire-rated sealing and fire stopping in Newbury, Kent

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Newbury and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Improvised or mixed-product fire seals
  • Unsealed joints where partitions meet the slab
  • Penetration schedules that need working through
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Fire stopping across Newbury

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Newbury: questions and answers

Would you work within a site like Sittingbourne Memorial Hospital?

Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.

What does the BS 476 change mean for fire-rated sealant in Newbury?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Is the work guaranteed?

Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.

Are your applicators CSCS-carded?

Yes. If you need card details for site access, let us know and we will send them with the quote.

How do I request a quote?

There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photographs and a postcode.

Which sealant will you use?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Does the weather affect the work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Fire stopping in Newbury, done properly

Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4 and the results are classified to BS EN 13501-2. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. So our job is to reproduce that arrangement faithfully. If you have open linear gaps along the top of fire-resisting walls and damaged fire seals in risers and voids, we can put it right, whatever the surface. Searching for sealant specialists in Newbury? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

Barn and farm-building conversions near places like Newbury often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

Our workmanship is guaranteed for 12 months, in Newbury as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Newbury (ME9)
Wider area
Kent
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026

Building owners, agents and FMs in Newbury

Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

Fire stopping in Newbury: the local picture

In England, Approved Document B covers fire stopping of 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. Either way, we install the specified product to its tested detail. At about 39 miles from central London, Newbury is within reach of the capital. 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.

In a building such as Church of St Catherine, any service penetration through a fire-resisting wall should be sealed to the specified detail. Wherever services are added at a hospital such as Sittingbourne Memorial Hospital (to the north-west of Newbury) the compartment line has to be made good with the specified product.

Newbury is about 3 miles south-east of Sittingbourne, in Kent. Anywhere in ME9, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Newbury is one of 931 places we cover in Kent for service penetrations. For work in that direction, see our London page, about 39 miles away.

Business premises anywhere in ME9 are within our area. We also cover Kingsdown (1 mile south), Dungate (1 mile south-west), Bapchild (1 mile north), Erriottwood (1 mile south-east) and Rodmersham Green (1 mile north-west) for service penetrations. A short drive away, we cover Maidstone (11 miles west), Ashford (12 miles south), Canterbury (14 miles east), Sittingbourne (3 miles north-west), Whitstable (12 miles east) and Faversham (5 miles east).

What’s near Newbury

In Newbury, that means premises near Cromers Wood and The Sittingbourne School and the streets around them. For rail, the closest station is Teynham station, about 2.7 miles north-east. Other landmarks nearby include Sittingbourne Heritage Museum (2.4 miles north) and Newnham Castle (2.1 miles south-east).

Map of Newbury © OpenStreetMap contributors

On site: what to expect

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. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Smaller jobs around Newbury can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.

  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. Completed areas are checked with you, with the records agreed when we quoted.

What we need from you

  • Tell us your opening times and when work is allowed
  • Move anything stored against the joints
  • Point out parking and an unloading spot

Request a quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.

Get a price

Read more

Do you need fire stopping in Newbury?

Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped.

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

  • Hidden openings found during inspections
  • Fire stopping installed outside its tested range
  • Fire sealant pulled out of the opening
  • Builders’ foam or ordinary silicone in compartment walls

Residences at universities like Canterbury Christ Church University, 4.5 miles to the south-west of Newbury, have compartment walls that must be resealed whenever services change.

Questions to ask before you book

  • Whether old or failed sealant will be cut out, not overlaid
  • Whether their applicators hold CSCS cards
  • Whether primer will be used where the manufacturer specifies it
  • Their plan for phasing and protecting the area

Our contractor checklist

Surface by surface

Risers and ceiling voids

Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance.

Masonry and concrete

Block walls and concrete floors are common substrates for penetration seals. Dust and loose debris are cleared out of the opening, so the sealant and any backing sit properly.

Aftercare for building managers

Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Brief every trade that openings they make must be sealed
  • Look above ceilings when tiles are lifted for other jobs
  • Agree the fire-stopping specification before services go in
  • Record which product was used where

After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail, by someone who knows the system.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there instead of being left for someone else.

Site staff or a sealant specialist?

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. A poor seal in places like these tends to cost more to put right later.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Accreditations

Trusted. Accredited. Insured.