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

Fire Stopping in Cliddesden

Fire-rated and intumescent sealing of service penetrations and linear gaps in Cliddesden. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Head-of-wall gaps with no fire seal
  • Seals disturbed by maintenance and left open
  • Unsealed openings around new pipes and cables
1
Send details
Drawings, photos, a joint schedule or a site visit.
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
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Fire stopping near Cliddesden

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

Penetration seals near Cliddesden

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. We install whatever has been specified, to the product’s tested detail. Several hotels sit less than 2 miles from Cliddesden. In hotels, bedroom and corridor walls are normally fire-resisting, so services added in a refit need sealing with the specified product.

Tenant changes at centres like St Michael's Retail Park (to the north-west of Cliddesden) often mean new services through walls between units. In a hotel such as Audleys Wood Hotel, 0.8 miles north-east of Cliddesden, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.

Cliddesden is about 2 miles south of Basingstoke, in Hampshire. We send applicators to Cliddesden for service penetrations, handled exactly as we handle every other area. We work across 723 places in Hampshire, from busy centres to rural villages. Sites around Reading have their own page, about 15 miles away.

Anyone looking for fire stopping in RG25 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Station Road, Church Lane and Hoopersmead and the roads nearby. Nearby places we also cover include Viables (1 mile north), Eastrop (2 miles north), Ellisfield (2 miles south), Oakridge (2 miles north) and Upper Common (2 miles south) for service penetrations. Bigger towns within reach include Farnborough (15 miles east), Fleet (11 miles east), Aldershot (15 miles east), Alton (8 miles south-east), Yateley (13 miles north-east) and Tadley (8 miles north).

Local landmarks in Cliddesden

We work on buildings around Brighton Hill Community School, Hackwood Park and Jolly Farmer Public House and the streets around them. The nearest railway station is Basingstoke station, about 2.2 miles north. A little further out are Basing House (2.9 miles north-east) and Festival Place (2 miles north). Green spaces nearby include Farleigh Hill and The Mill Field.

Map of Cliddesden © OpenStreetMap contributors

Fire stopping in Cliddesden

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. If the detail calls for something other than sealant, we say so rather than force sealant into it. We work on service gaps in risers, joints between fire-resisting walls and floors and pipe penetrations, and what we are called in for most is fire-stopping items raised at inspection or handover and unsealed penetrations discovered above suspended ceilings. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Cliddesden is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

For a smaller site near Cliddesden, we plan to do all the penetrations in one go, so send the specification and photographs first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Place
Cliddesden (RG25)
Region
Hampshire
Guarantee
A 12-month guarantee
Quote
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Questions we are asked in Cliddesden

Can you work around term dates at a campus such as Queen Mary's College?

Yes. We plan campus work around teaching, exams and residence turnarounds. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Is a smaller place like Cliddesden outside your area?

No. Places such as Cliddesden are covered as much as the big towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

How long does a job like this take?

The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.

Can you tell us what fire stopping our building needs?

No. The specification comes from your designer, fire engineer or building control. Our role is fitting the specified fire-rated sealant, following the maker’s tested details.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we will confirm the curing time on the day.

Is fire stopping in Scotland covered by different guidance?

Scotland sets its own building regulations, with Technical Handbooks, while England relies on Approved Document B. Wherever the site is, our work follows the specification and the tested detail.

Which sealant will you use?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Honest limits

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Deciding what a wall or floor needs, which belongs to the designer
  • Construction that lacks the fire resistance the seal relies on
  • Plastic pipes whose detail calls for a collar or wrap

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

Where we work in Cliddesden

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

Should maintenance staff do it?

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.

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

When to call us in Cliddesden

When a seal departs from its tested detail, the evidence no longer covers it. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are what we find most often.

Typical triggers for a call:

  • Seals disturbed by maintenance and left open
  • Builders’ foam or ordinary silicone in compartment walls
  • Unsealed joints where partitions meet the slab
  • Openings left by services added after handover

At a college such as Queen Mary's College, 1.3 miles to the north of Cliddesden, checking penetration seals after summer M&E works is good practice.

Before you book anyone

  • Will failed sealant be removed rather than covered?
  • Whether primer will be used where the manufacturer specifies it
  • The terms of the workmanship guarantee
  • What site paperwork they can supply

Questions to ask before you appoint anyone

Aftercare for building managers

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Get seals inspected before ceilings and boxing close
  • Check risers and ceiling voids after each round of works
  • Ask the designer to confirm details early on refits
  • Ask which product is in place before decorating

Give the sealant its full cure time before ceilings, boxing or decoration go over it. Not every fire-rated product can be painted, and the data sheet says which.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open, not months later.

Why deal with it now?

An improvised seal can look finished while offering no tested performance. The fix is to remove it and reinstall to the detail. Around Cliddesden, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why appoint us

  • Constructionline member
  • Health and safety: CHAS accredited
  • Work to your specification and the manufacturer’s guidance
  • Sealing commercial buildings since 2005

Read our cost guide and our accreditations and insurance.

From enquiry to sign-off

Occupied buildings need a little choreography. We sign and contain the area we’re in, keep walkways clear and work section by section so the rest of the building stays in use. Smaller jobs around Cliddesden can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.

  1. We start with your penetration schedule, drawings or specification.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Tell us your opening times and when work is allowed
  • For older buildings, check the asbestos register before work

Request a quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email a schedule or drawings.

Get a quick quote

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