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

Fire Stopping in Kempshott

Commercial sealant work in Kempshott for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Seals disturbed by maintenance and left open
  • Fire-rated sealant that has cracked or shrunk back
  • Unsealed joints where partitions meet the slab
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
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Need fire stopping in Kempshott?

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

FAQs: Kempshott

Do you cover business parks and estates near Kempshott, such as Brighton Hill Retail Park?

Yes, sites like Brighton Hill Retail Park are within our area, along with the rest of Kempshott. Photos and a short description are enough for a first look.

Can work at a site such as Queen Mary's College fit around teaching?

Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Will you write the fire-stopping specification?

No, that isn’t our role. With the designer’s details in hand, we can price the sealant elements and point out anything needing another product.

Does weather matter for sealant work?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Are you insured?

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

What do BS EN 1366-3 and BS EN 13501-2 mean?

Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Results are classified under 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 seal any opening with fire-rated sealant?

No. Sealant is the right product only where the tested detail says so. Collars, wraps, batts and boards exist for openings sealant doesn’t cover.

Fire stopping for commercial buildings in Kempshott

Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Other openings need collars, wraps, batts, pillows or boards. We use sealant where it is the specified product, and we tell you when a detail calls for something else. If you have fire stopping installed outside its tested range and service penetrations left open after M&E works, we can help, on service gaps in risers, linear gaps at wall heads and joints between fire-resisting walls and floors alike. A specialist sealant contractor works differently from a general builder: in Kempshott, that means joint design, primers and backing rod as standard.

Around Kempshott, penetration and linear seals tend to be one-building jobs. With the specification and photographs of the gaps, we can give a fixed quote and bring the right products.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Place
Kempshott (RG22, RG23)
Wider area
Hampshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What we can’t put right

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Writing the fire-stopping specification
  • Issuing fire ratings or certificates for seals

Not sure which it is? You can ring 01277 525 020 or email us and we will tell you honestly.

Where we work in Kempshott

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

Building owners, agents and FMs in Kempshott

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. If neighbouring businesses or buildings around Kempshott need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.

  1. First we confirm the product and tested details named in the specification.
  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.

Getting the site ready

  • Explain the parking and delivery arrangements
  • Tell us your opening times and when work is allowed
  • Make sure the joints can be reached

Get a fixed quote

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Get a quick quote

Advice

Signs you need fire stopping in Kempshott

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.

Things that typically lead to an enquiry:

  • Fire seals cut back for extra cables and never reinstated
  • Builders’ foam or ordinary silicone in compartment walls
  • Penetration schedules that need working through
  • Unsealed joints where partitions meet the slab

Workshops and IT rooms at colleges like Queen Mary's College (2.4 miles east of Kempshott) are re-serviced often, leaving penetrations to seal.

What your quote should include

  • What level of public liability insurance do they hold?
  • How they handle RAMS and site documents
  • Their approach to joint depth and backing
  • Do they follow the manufacturer’s priming guidance?

Questions to ask before you appoint anyone

Fire stopping around Kempshott: how the place shapes the job

Kempshott lies roughly 48 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around 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. We install whatever has been specified, to the product’s tested detail.

Refits at places like Brighton Hill Retail Park (to the east of Kempshott) often reroute services through walls between units. In a school such as Kempshott Junior School, fire-rated sealant goes in around service penetrations where it is specified.

Kempshott is about 2 miles south-west of Basingstoke, in Hampshire. Across the RG22 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Kempshott is one of 723 places we cover in Hampshire. Reading is covered too, around 16 miles from Kempshott.

Commercial sites across RG22 and RG23 are covered for service penetrations. For a building on Roman Road, Aster Road and Osprey Road or nearby, send details and we’ll quote for service penetrations. Sites close to Kempshott are covered too, including Buckskin (1 mile north), Hatch Warren (1 mile south-east), Worting (1 mile north), Brighton Hill (1 mile east) and South Ham (2 miles north-east). Further afield, our area takes in Winchester (15 miles south-west), Fleet (13 miles east), Andover (15 miles west), Alton (10 miles south-east), Yateley (15 miles north-east) and Tadley (8 miles north).

Local landmarks in Kempshott

We work on buildings around Brighton Hill Community School and Coppice Spring School and the streets around them. The closest station to Kempshott is Basingstoke station, roughly 2.8 miles north-east. A little further out are Willis Museum (2.6 miles north-east) and The Malls (2.8 miles north-east). The countryside around Kempshott includes Daneshill Park Woods and Farleigh Hill.

Map of Kempshott © OpenStreetMap contributors

How the job changes by surface

Risers and ceiling voids

Openings above suspended ceilings are easy to miss. We work through the areas on your schedule methodically and tell you about openings outside the list.

Drylining partitions

Service holes through plasterboard are frequently oversized or ragged. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.

What affects the price in Kempshott

To price the job, we consider:

  • Whether old sealant has to be cut out first
  • Location, for remote and island sites
  • Backing rod, priming and other preparation
  • Any access equipment needed

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote and we will price your job on its own details.

Details that help us quote

A few photos plus some basic facts will normally do. It helps to include:

  • Where the site is, with the postcode
  • Your programme or deadline
  • Whether the building will be occupied during the work
  • Clear photos of the problem areas

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Accreditations

Trusted. Accredited. Insured.