The Mastic Doctor team standing beside their branded vans outside an office building
Dundee · Scotland

Fire-rated sealing and fire stopping in Stobswell, Dundee

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

  • Builders’ foam or ordinary silicone in compartment walls
  • Old intumescent sealant that has split away
  • Fire stopping installed outside its tested range
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m public liability

Fire stopping across Stobswell

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

Commercial clients in Stobswell

Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.

Building owners and managing agents use us on everything from one building to a spread of sites around Stobswell. One quote can cover more than one site, which keeps the paperwork simple.

About our fire stopping in Stobswell

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 small duct penetrations where the tested detail allows, service gaps in risers and linear gaps at wall heads, and the failures we are asked to look at most are penetration schedules that need working through and seals that don’t match their tested detail. Whoever orders the work in Stobswell, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Large city estates in Scotland, from universities to hospitals and offices, are re-serviced constantly, and each new run of cable or pipe through a compartment wall needs sealing. New openings are closed with the specified fire-rated product, following its test evidence.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Stobswell (DD3, DD4, DD1)
Region
Dundee
Cover
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Service penetrations in Stobswell buildings

The 2 miles around Stobswell include 10 care or nursing homes. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail. Scotland has its own building standards: the non-domestic Technical Handbook (clause 2.1.14) says service penetrations should be fire stopped to at least the fire resistance duration of the wall or floor, with proprietary products, intumescent ones included, tested for their end use. Where fire-rated sealant is specified, that’s what we install, to the tested detail.

At a college such as Dundee and Angus College - Kingsway Campus, which lies north-west of Stobswell, checking penetration seals after summer M&E works is good practice. Theatres, wards and plant rooms at sites like Kings Cross Hospital (to the north-west of Stobswell) all have compartment walls crossed by services.

Stobswell is about 1 mile east of Dundee, in Dundee. Stobswell sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Stobswell is one of 28 places in Dundee on our list for service penetrations.

Business premises anywhere in DD3, DD4 and DD1 are within our area. We cover commercial and managed buildings on Mid Road, Dens Road and Don's Road and the roads nearby. Being close to the A929, Stobswell is straightforward for us to reach. If your building is just outside Stobswell, we cover Dundee (1 mile west), Woodside (1 mile north), Craigiebank (1 mile east), Mill of Mains (1 mile north) and Pitkerro (1 mile north-east). Nearby towns on our patch include Broughty Ferry (4 miles east), Barnhill (4 miles east), St Marys (3 miles north-west), Menzieshill (3 miles west), Charleston (3 miles west) and Ninewells (3 miles west).

What’s near Stobswell

Recent enquiries here include premises near Office of J & D Grimmond pub, Craigie High School and St Roque's Library, among other places. Stobswell’s nearest station is Dundee station, about 1 mile south of the centre. Well-known places in the area include McManus Gallery (0.6 miles south-west) and Wellgate Centre (0.5 miles south-west). For a walk, there’s Trottick Mill Ponds and Balgay Hill.

Map of Stobswell © OpenStreetMap contributors

Leave it or put it right?

Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed. In Stobswell, as across Scotland, rain finds any gap, and failed external joints let it into stone walls and around frames. Resealing promptly protects the stone and the interior.

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 choose Mastic Doctor in Stobswell

  • A fixed quote before work starts
  • CHAS accredited
  • Public liability insurance in place
  • Old sealant cut out, never sealed over

Take a look at what affects the cost and our accreditations.

On site: what to expect

Occupied buildings need a little choreography. We sign and contain the area we are in, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For premises in Stobswell, tell us about access times, shared entrances and any building rules, and we will plan the work to suit, phased where areas need to stay in use.

  1. We ask for the product and detail your designer has specified.
  2. We sort the openings by the detail each one needs.
  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.

Before we start on site

  • Tell us which areas need to stay in use
  • Share your working hours and any access restrictions
  • Point out parking and an unloading spot

Get a fixed quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, give us a call on 01277 525 020 or email drawings and photos.

Get a quick quote

Read more

Questions we’re asked in Stobswell

Could you schedule work at a campus like Abertay University for the vacation?

Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Do you work in occupied care homes around Stobswell?

Yes. Care settings are planned area by area, at times agreed with the home. Any site rules, from signing in to infection control, are agreed before we start.

Which standards are fire seals tested to?

BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Classification follows 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.

What about RAMS and site documents?

Each site asks for different documents, so tell us what you need and we’ll confirm it when we quote.

Do you offer coloured sealant?

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

Who decides which product is used?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

How do you deal with asbestos in old sealant?

The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.

What we can’t put right

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Plastic pipes whose detail calls for a collar or wrap
  • Issuing fire ratings or certificates for seals
  • Fire doors, dampers or other fire safety equipment

If in doubt, speak to us on 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.

What we seal

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

Should maintenance staff do it?

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

Common problems we fix in Stobswell

Physical damage is another reason seals stop doing their job. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe, and the repair is often skipped.

These are often picked up first by site or facilities staff:

  • Unsealed joints where partitions meet the slab
  • Snag lists that include open service penetrations
  • Old intumescent sealant that has split away
  • Expanding foam used as fire stopping

In a hotel such as Hotel Indigo Dundee, which lies south of Stobswell, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.

Before you book anyone

  • How long is the guarantee, and what does it include?
  • Will failed sealant be removed rather than covered?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Their pre-qualification and accreditations

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.