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

Fire-rated sealing and fire stopping in Littleton, Hampshire

Sealant work in Littleton for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.

  • Penetration schedules that need working through
  • Damaged fire seals in risers and voids
  • Non-fire-rated filler around services
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping near Littleton

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Fire stopping for commercial buildings in Littleton

A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls. We close the openings listed on your schedule, using the specified sealant and detail. If you have unsealed joints where partitions meet the slab and fire-stopping items raised at inspection or handover, we can help, on linear gaps at wall heads, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Littleton, that means joint design, primers and backing rod as standard.

Rural conversions around Littleton can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Where
Littleton (SO22)
Wider area
Hampshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What the job involves on each surface

Cables and cable bundles

Data cabling added after handover is a regular cause of open service penetrations. Openings around new cables are resealed to the detail, and we tell you if the bundle exceeds what sealant covers.

Small ducts

Some fire-rated sealant details cover small ducts. Larger or fire-rated ductwork usually needs a different solution set by the designer.

Compartments and services around Littleton

Central London is about 61 miles from Littleton. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal. Littleton has a number of hotels close by, all within 2 miles. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

Campus buildings at universities such as University of Winchester, 2 miles south-east of Littleton, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Theatres, wards and plant rooms at sites like Sarum Road Hospital (BMI) (to the south of Littleton) all have compartment walls crossed by services.

Littleton is about 2 miles north-west of Winchester, in Hampshire. Looking for fire stopping in Littleton? We can help. 723 places across Hampshire fall within our area, including Littleton. Southampton is covered too, around 12 miles from Littleton.

Work on service penetrations is covered throughout SO22, for business premises of every kind. If your site is on Rutledge Drive, Fyfield Way and Hilden Way or close by, send details and we will quote for service penetrations. Sites close to Littleton are covered too, including Harestock (1 mile south-east), Weeke (1 mile south-east), Sparsholt (1 mile south-west), Westley (2 miles west) and Abbotts Barton (2 miles south-east). Nearby towns on our patch include Eastleigh (8 miles south), Andover (10 miles north-west), Totton (13 miles south-west), Chandler's Ford (7 miles south), Hedge End (12 miles south) and Romsey (9 miles south-west).

Near you in Littleton

Locally, jobs take us to sites close to Henry Beaufort School and The Running Horse pub, among other places. The closest station to Littleton is Winchester station, about 1.9 miles south-east. A little further out are Royal Observer Corps Museum (1.8 miles south-east) and Royal Hampshire County Hospital (1.9 miles south-east). Green spaces nearby include Winnall Moors and Twyford Down.

Map of Littleton © OpenStreetMap contributors

What happens if it’s left?

The longer openings stay, the more there tend to be: every new cable or pipe adds another. Keeping on top of it after each round of works keeps the job small and avoids a much larger catch-up later. One visit to deal with every failing joint makes more sense than several trips to a place like Littleton, rather than one at a time. Send photographs of each area and we will quote for the lot.

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

Why us?

  • Constructionline member for supplier checks
  • A fixed quote before work starts
  • 12 months’ guarantee on every job
  • Work carried out by CSCS-carded applicators

Take a look at our cost guide or our accreditations and insurance.

What sealant work can’t fix

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

  • Walls or floors that aren’t fire-resisting to begin with
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Reviewing a building’s overall fire safety

Not sure which it is? You can phone 01277 525 020 or send photos by email and we will tell you honestly before you book.

Surfaces we seal

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

Keeping the joints sound

To get the most from the new sealant:

  • Record which product was used where
  • Put resealing into every M&E and fit-out package
  • Include service cupboards in routine inspections
  • Foam or ordinary sealant is never a fire-seal repair

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

Ask every contractor who works in risers or voids to report openings they create. Small habits like this stop openings building up.

What we’re called out for in Littleton

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Deflection and building movement can open these gaps, and the wrong product can split as a result. The tested detail for a linear joint states the width and movement it covers.

Look out for the following:

  • Seals disturbed by maintenance and left open
  • Service penetrations left open after M&E works
  • Fire-stopping items raised at inspection or handover
  • Fire stopping installed outside its tested range

On a site such as Balldown Business Centre, which lies west of Littleton, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.

Before you book anyone

  • Will CSCS-carded applicators be on site?
  • Will failed sealant be removed rather than covered?
  • How they handle RAMS and site documents
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Rural sites near Littleton may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.

  1. The specification and schedule come first, so we know which details apply.
  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 first.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

Preparing the site

  • Tell us which areas need to stay in use
  • Make sure the joints can be reached
  • Let us know about inductions and permits

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, ring 01277 525 020 or email us.

Get a price

Related advice

FAQs: Littleton

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

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Can you take on a job at a hospital such as Sarum Road Hospital (BMI)?

Yes, healthcare and care buildings are part of our work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.

Are you CHAS accredited and on Constructionline?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

How many days will you need on site?

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

When is resealing likely to be due?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Do you need to see the site first?

Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit.

Accreditations

Trusted. Accredited. Insured.