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

Fire stopping in Heckfield Heath

Commercial sealant work in Heckfield Heath for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.

  • Old intumescent sealant that has split away
  • Openings found when ceilings come down for a refit
  • Snag lists that include open service penetrations
1
Send details
Photos, drawings or a schedule, or we visit.
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.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Fire stopping across Heckfield Heath

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

Fire stopping in Heckfield Heath

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. To price a package, speak to us on 01277 525 020 or send details through our quote form with the schedule or marked-up drawings and the specified product data. Tell us what records you need and we’ll confirm with the quote. Most enquiries involve non-fire-rated filler around services and fire stopping installed outside its tested range, on service gaps in risers, joints between fire-resisting walls and floors and linear gaps at wall heads. Most enquiries from Heckfield Heath start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Rural conversions around Heckfield Heath 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.

A 12-month guarantee applies to all our work. If an installation problem shows up, ring 01277 525 020 or email the details over and we’ll arrange a return visit.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Heckfield Heath (RG27, RG7)
Region
Hampshire
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Maintenance after handover

Keep the joints in good shape with a few simple steps:

  • Have penetrations checked while they can still be seen
  • Settle who seals which penetrations at the start of a project
  • Check with the data sheet before painting over fire sealant
  • Flag new cables with no seal around them

Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.

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, and installation follows the programme.

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Smaller jobs around Heckfield Heath can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.

  1. We start with your penetration schedule, drawings or specification.
  2. We plan the sequence of floors, risers and voids with you.
  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. We tell you about openings that need a different product.

Before we start on site

  • For older buildings, check the asbestos register before work
  • Explain the parking and delivery arrangements
  • Warn occupants and staff about the work

Request a quote

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.

Ask for a quote

Related advice

Commercial clients in Heckfield Heath

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

Surface by surface

Small ducts

Some fire-rated sealant details cover small ducts. Larger or fire-rated ductwork usually needs a different solution set by the designer and we flag that rather than guess.

Masonry and concrete

Block walls and concrete floors are common substrates for penetration seals. Dust and debris are cleared from the opening.

When it isn’t the sealant

Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:

  • Gaps in walls that were never built as compartment walls
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Openings that need collars, wraps, batts or boards rather than sealant

Not sure which it is? You can speak to us on 01277 525 020 or use the quote form and we will tell you honestly.

Joints and surfaces we work on

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

Your questions answered

What happens to BS 476 references for fire stopping in Heckfield Heath?

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.

Is Heckfield Heath off your patch?

No. Small places get the same service as large ones. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Do you need to see the site first?

That depends on the size and complexity of the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.

How many days will you need on site?

That varies with the scale of the job, but the work normally takes anything from one day to a planned run of visits, depending on the number of seals and the access. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Do you offer coloured sealant?

That depends on the product specified. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.

Are you insured?

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

Do your applicators hold CSCS cards?

Yes. Should the site need card details in advance, let us know and we’ll send them with the quote.

Compartment walls and floors in Heckfield Heath

Heckfield Heath is about 39 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls, and the gaps need sealing with the specified product. 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. Either way, we install the specified product to its tested detail.

Halls and meeting rooms at places like Church of St Michael sometimes gain new services, and any compartment wall crossed needs the specified seal.

Heckfield Heath is about 4 miles north of Hook, in Hampshire. Heckfield Heath sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Hampshire coverage takes in 723 places, from busy centres to rural villages. We also cover Reading, some 7 miles away.

We cover the RG27 and RG7 postcode districts for service penetrations. If your site is on Church Lane and The Causeway or close by, send details and we will quote for service penetrations. Sites close to Heckfield Heath are covered too, including Heckfield (1 mile south), Riseley (1 mile north), Bramshill (1 mile east), Hound Green (1 mile south) and Hazeley (2 miles south-east). Further afield, our area takes in Basingstoke (8 miles south-west), Farnborough (9 miles south-east), Fleet (7 miles south-east), Aldershot (11 miles south-east), Alton (14 miles south) and Yateley (5 miles east).

Local landmarks in Heckfield Heath

We work on buildings around Wellington Country Park and New Inn and the streets around them. For rail, the closest station is Mortimer station, roughly 3.8 miles north-west of the centre. Well-known places in the area include Beaumys Castle (2.3 miles north-west) and West Green House Agricultural Museum (3.3 miles south). For a walk, there’s The Marshes Local Nature Reserve.

Map of Heckfield Heath © OpenStreetMap contributors

Signs you need fire stopping in Heckfield Heath

Damage plays a part too. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped.

It’s worth sending us details if you spot any of the following:

  • Expanding foam used as fire stopping
  • Snag lists that include open service penetrations
  • Service penetrations left open after M&E works
  • Head-of-wall gaps with no fire seal

Offices at parks like Riseley Business Park, 1.3 miles to the north of Heckfield Heath, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

Questions to ask before you book

  • Can the work be phased to keep areas open?
  • Proof of insurance
  • What site paperwork they can supply
  • Whether their applicators hold CSCS cards

How to choose a sealant contractor

Accreditations

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