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

Fire Stopping in Upper Wield

Fire-rated and intumescent sealing of service penetrations and linear gaps in Upper Wield and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.

  • Head-of-wall gaps with no fire seal
  • Seals disturbed by maintenance and left open
  • Builders’ foam or ordinary silicone in compartment walls
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m PL insurance

Fire stopping for businesses in Upper Wield

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

Compartments and services around Upper Wield

Upper Wield lies roughly 50 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Older community buildings such as Church of St James that have been rewired or given new heating can have service gaps through walls worth checking against the specification. On estates like Barton Industrial Estate (0.5 miles south of Upper Wield), the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. Theatres, wards and plant rooms at sites like Alton Community Hospital, 4.8 miles to the east of Upper Wield, all have compartment walls crossed by services.

Upper Wield is about 5 miles west of Alton, in Hampshire. Our applicators travel to Upper Wield for work on service penetrations, handled exactly as we handle every other area. Across Hampshire, 723 places are covered, including Upper Wield. Southampton is covered too, some 20 miles away.

Business premises anywhere in SO24 are within our area. Close to Upper Wield, our area also takes in Preston Candover (2 miles north-west), Bighton (3 miles south-west), Brown Candover (3 miles west), Totford (4 miles west) and Old Alresford (4 miles south-west). Nearby towns on our patch include Basingstoke (8 miles north), Winchester (11 miles south-west), Fleet (14 miles north-east), Alton (5 miles east), Petersfield (12 miles south-east) and Tadley (15 miles north).

Landmarks near Upper Wield

We work on buildings around The Yew Tree pub and the streets around them. A little further out are Barton Castle (0.7 miles south-west) and Alton Community Hospital (4.8 miles east). Not far away are King's Hill.

Map of Upper Wield © OpenStreetMap contributors

About our fire stopping in Upper Wield

For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings and the specified product data. Tell us what records you need and we will confirm with the quote. The enquiries we see most involve snag lists that include open service penetrations and fire stopping installed outside its tested range, across small duct penetrations where the tested detail allows, service gaps in risers and linear gaps at wall heads. Searching for sealant specialists in Upper Wield? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

Barn and farm-building conversions near places like Upper Wield 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.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, speak to us on 01277 525 020 or email the details over and we’ll come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Upper Wield (SO24)
Wider area
Hampshire
Guarantee
12 months on every job
Price
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Honest limits

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be one of these:

  • Walls or floors that aren’t fire-resisting to begin with
  • Fire risk assessments, a job for a competent assessor
  • Designing or specifying fire stopping, which sits with the designer or fire engineer

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

What we seal

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

Upper Wield: questions and answers

Can you take on a job at a hospital such as Alton 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.

Do you cover business parks and estates near Upper Wield, such as Barton Industrial Estate?

Yes. Estates, retail parks and business parks around Upper Wield, Barton Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.

Does the weather affect the work?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

What do you charge?

Each job is quoted on its own details. For yours, give us a call on 01277 525 020 or email the details over.

What does an EI 60 rating mean?

In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. EI 60 means integrity and insulation for 60 minutes in the tested arrangement.

Is it fine to apply new sealant on top of old?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Will you write the fire-stopping specification?

No, we don’t design fire stopping. With the designer’s details in hand, we can price the sealant elements.

Diagnose, treat, sign off

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Smaller jobs around Upper Wield can be grouped with others nearby. A fixed quote is given before anything starts.

  1. First we go through the drawings, schedule or specification for the seals.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

What we need from you

  • Send any specification or drawings in advance
  • Tell staff and tenants when we will be in
  • Arrange parking or a loading space

Request a quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call the office on 01277 525 020 or send photos by email.

Get a quick quote

Advice

Cost factors for service penetrations

A fixed quote reflects the actual work. It takes account of:

  • Distance, for remote addresses
  • Specialist products, such as fire-rated or hygienic sealants
  • The total length or number of joints
  • Access and working height

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

Sending details for a quote

To price the job accurately, we need a clear picture of the site. Send us:

  • Anything awkward about access or site hours
  • Whether an asbestos survey exists
  • Any specification or named product
  • Where the site is, with the postcode

To get a fixed quote, ring 01277 525 020 or email us, telling us the site location and the nature of the job. You can also send details through our quote form.

Owners, agents and contractors

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.

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

Keeping the joints sound

To get the most from the new sealant:

  • Leave fire sealant to cure fully before covering it
  • Look above ceilings when tiles are lifted for other jobs
  • Keep general-purpose fillers away from compartment walls
  • Report damaged or disturbed seals as soon as they’re spotted

Store the specified product details somewhere the next contractor can find them. Anyone resealing later needs to know which product and detail were used.

Make reporting new openings part of every permit to work in service areas. It costs little and catches breaches early.

How the job changes by surface

Metal pipes

Sealant details often cover copper and steel pipework. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on, so we check each one.

Plastic pipes

Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail, though larger ones normally call for a collar or wrap. We check the pipe material and diameter against the detail before we start.

Accreditations

Trusted. Accredited. Insured.