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

Fire-rated sealing and fire stopping in Shalstone, Buckinghamshire

Work needed on a service penetration in Shalstone? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Fire-rated sealant that has cracked or shrunk back
  • Seals that don’t match their tested detail
  • Head-of-wall gaps with no fire seal
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
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping across Shalstone

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 Shalstone

A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, often unnoticed. Those on your schedule are closed with the specified product. If you have fire-rated sealant that has cracked or shrunk back and non-fire-rated filler around services, we can put it right, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, in Shalstone it comes down to the same thing: the right product in a properly prepared joint.

Barn and farm-building conversions near places like Shalstone 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.

A 12-month guarantee applies to all our work in Buckinghamshire. Should something we installed fail, give us a call on 01277 525 020 or send details through our quote form and we will come back to it.

Place
Shalstone (MK18)
Region
Buckinghamshire
Cover
12 months on our workmanship
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

What we can’t put right

Our job is the joint, not everything around it. On its own, sealant can’t deal with:

  • Large openings beyond what any sealant detail covers
  • Issuing fire ratings or certificates for seals
  • Fire risk assessments, a job for a competent assessor

If you’re not sure, just speak to us on 01277 525 020 or email us and we’ll give you a straight answer.

Joints and surfaces we work on

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

How a job runs

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes a single visit for a short list of penetrations, or a phased programme for a whole building, and our waste is bagged and taken away as we go. Smaller jobs around Shalstone can be grouped with others nearby. A fixed quote is given before anything starts.

  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. 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.

What we need from you

  • Send asbestos survey details if the building is pre-2000
  • Tell staff and tenants when we’ll be in
  • Make sure the joints can be reached

Ask for a quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Ask for a quote

Read more

Owners, agents and contractors

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Penetration seals near Shalstone

In England, Approved Document B covers fire stopping of openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. At about 55 miles from central London, Shalstone is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls.

Campus buildings at universities such as University of Buckingham (to the south-east of Shalstone) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. For a building such as Church of St Edward, new heating or data runs are the usual reason penetrations need sealing. Wherever services are added at a hospital such as Brackley Community Hospital (3.4 miles west of Shalstone) the compartment line has to be made good with the specified product.

Shalstone is in Buckinghamshire. Looking for fire stopping in Shalstone? We can help. Shalstone is one of 308 places in Buckinghamshire on our list. Our Oxford page has more on work in that area.

If you need fire stopping in MK18, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Nearby places we also cover include Water Stratford (2 miles south), Dadford (2 miles north-east), Radclive (3 miles south-east) and Chackmore (3 miles east). Bigger towns within reach include Buckingham (4 miles south-east), Winslow (10 miles south-east), Steeple Claydon (7 miles south-east), Newton Longville (13 miles east), Tingewick (3 miles south) and Whitchurch (14 miles south-east).

Near you in Shalstone

Nearby you will also find Beaumont Castle (2.6 miles south-west) and The Menagerie (2 miles east). The countryside around Shalstone includes Buckingham Sand Pit.

Map of Shalstone © OpenStreetMap contributors

Why deal with it now?

An improvised seal can look finished while offering no tested performance. Correcting it means cutting it out and starting again with the specified product. Halls, stores and units around places like Shalstone may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a quote once you have the details.

What you get with us

  • One contact handling all your sites
  • Over 20 years of commercial sealing
  • Fully insured, including public liability cover
  • Products installed to the manufacturer’s instructions

See what affects the cost and how we’re accredited.

Questions we’re asked in Shalstone

Can you work on a hospital site such as Brackley Community Hospital?

Yes. We work in healthcare settings as well as offices and schools. 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 Shalstone?

References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

What if there’s asbestos in the old mastic?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.

Do you guarantee your work?

Yes. Workmanship is guaranteed for 12 months on every job.

Is Shalstone in your area?

Yes. We cover Shalstone, within our coverage of Greater London, South East England and Scotland. For a quote, ring 01277 525 020 or send photos by email.

What do you charge?

There isn’t a price list, because every site is different. Send photographs or drawings and we’ll price it at a fixed figure.

Are you fully insured?

Yes. We’re fully insured, and the certificate can go with your quote.

Keeping the joints sound

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

  • Keep product data and details in the fire safety file
  • Don’t let anyone top up a fire seal with the wrong product
  • Check with the data sheet before painting over fire sealant
  • Brief every trade that openings they make must be sealed

Once the seals are in, tell other trades they exist and must not be disturbed. If a seal has to be opened for a new service, it should be reinstated to the same detail, by someone who knows the system.

On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned.

Site staff or a sealant specialist?

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

Accreditations

Trusted. Accredited. Insured.