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

Fire-rated sealing and fire stopping in Charlestown, Highland

Planning work on a service penetration in Charlestown? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Old intumescent sealant that has split away
  • Openings found when ceilings come down for a refit
  • Unsealed joints where partitions meet the slab
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Fire stopping for Charlestown sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

What happens if it’s left?

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed which is why earlier is better. For buildings near Charlestown, dealing with all the failing joints at once saves return trips. Photos of each area help us quote the whole job.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why us?

  • Work to your specification and the manufacturer’s guidance
  • One phone line for London, the South East and Scotland
  • A Constructionline member, so easy to vet
  • CSCS-carded applicators

Take a look at our cost guide or our accreditations.

Fire stopping in Charlestown, done properly

Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. Each seal follows the manufacturer’s tested detail. If you have old intumescent sealant that has split away and openings found when ceilings come down for a refit, we can put it right, whatever the surface. One point of contact handles commercial sealant work in Charlestown from the first photographs to the final walk-round, whether it’s one building or several.

In smaller Scottish places like Charlestown, buildings with fire-resisting walls typically include schools, care homes, hotels and health centres. Where services pass through, specified fire-rated sealant is installed following the manufacturer’s guidance for that wall or floor.

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 are clear about what is covered before work starts.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Charlestown (IV1)
Region
Highland
Cover
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026

On site: what to expect

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself normally taking longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Where we can, we combine work around Charlestown with other jobs nearby, to make the most of each trip. Tell us how flexible your dates are.

  1. We start with your penetration schedule, drawings or specification.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

Getting the site ready

  • Make sure the joints can be reached
  • Point out any areas we must not close
  • Warn occupants and staff about the work

Quotes

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or email the details over.

Get a quick quote

Read more

Fire stopping in Charlestown: the local picture

Plenty of hotels sit less than 2 miles from Charlestown. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Scottish guidance (non-domestic Technical Handbook, clause 2.1.14) asks that penetrations match at least the fire resistance period of the element they pass through, with proprietary products, intumescent ones included, tested for their end use. We install what’s specified, to the product’s tested detail.

Holiday works at schools like Inverness High School often leave service openings to seal before pupils return. Hotels such as North Kessock Hotel (to the east of Charlestown) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.

Charlestown is about 3 miles north-west of Inverness, in Highland. Anywhere in IV1, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 256 places in Highland, from busy centres to rural villages.

Commercial sites across IV1 are covered. Among the streets we cover are Main Street, Oakleigh Road and Bellfield Road, and sites on any of them can send details for a fixed quote. Close to Charlestown, our area also takes in North Kessock (1 mile north-west), Merkinch (1 mile south), Longman (2 miles south-east), Leachkin (2 miles south) and Millburn (2 miles south-east). Further afield, our area takes in Inverness (3 miles south-east), Nairn (15 miles east), Cradlehall (5 miles east), Dingwall (9 miles north-west), Hilton (3 miles south-east) and Alness (13 miles north). Where a site is remote or on an island, travel and materials need planning ahead.

Local landmarks in Charlestown

Charlestown’s nearest station is Inverness station, roughly 2 miles south-east of the centre. A little further out are Eastgate Shopping Centre (2.1 miles south-east) and Clan Maclennan Museum (1.3 miles north). Green spaces nearby include Ord Hill.

Map of Charlestown © OpenStreetMap contributors

What we can’t put right

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Construction that lacks the fire resistance the seal relies on
  • Large openings beyond what any sealant detail covers
  • Fire risk assessments, a job for a competent assessor

If in doubt, speak to us on 01277 525 020 or email the details over and we will say what we think before you book.

Where we work in Charlestown

  • 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

What we are called out for in Charlestown

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.

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

  • Improvised or mixed-product fire seals
  • Snag lists that include open service penetrations
  • Unsealed openings around new pipes and cables
  • Fire seals cut back for extra cables and never reinstated

Large healthcare estates like New Craigs Hospital (to the south of Charlestown) change their services often, so penetration seals are worth checking after M&E work.

What your quote should include

  • How they handle RAMS and site documents
  • The terms of the workmanship guarantee
  • Whether their applicators hold CSCS cards
  • Which product they’ll use, and why it suits the joint

Our contractor checklist

What the job involves on each surface

Masonry and concrete

Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest so we know it sits within the tested range, and any that don’t are flagged.

Risers and ceiling voids

Risers and ceiling voids hold most of a building’s service penetrations. Access to these areas is planned with you in advance, including keys, permits and any isolations.

Aftercare for building managers

Regular inspection catches problems early. In particular:

  • Include service cupboards in routine inspections
  • Ask the designer to confirm details early on refits
  • Get seals inspected before ceilings and boxing close
  • Ask which product is in place before decorating

Once the seals are in, tell other trades they exist and must not be disturbed. If a seal has to be opened for a new service, it should be reinstated to the same detail.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there, not months later.

Your questions answered

Do you cover business parks and estates near Charlestown, such as Carse Industrial Estate?

Yes. Our area takes in Charlestown and its surroundings, with estates and business parks such as Carse Industrial Estate included. Photos and a short description are enough for a first look.

Is hospital work, at somewhere like New Craigs Hospital, something you do?

Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.

Is any job too small?

Small jobs are welcome alongside larger packages. Photos and a description are enough to start.

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, and we confirm it before leaving site.

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Do you hold third-party fire-stopping installer certification?

No. We don’t hold a third-party fire-stopping installer certificate. We are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded. If your contract requires third-party installer certification, we’re not the right fit for that package.

Can you seal any opening with fire-rated sealant?

No. Sealant is the right product only where the tested detail says so. Collars, wraps, batts and boards exist for openings sealant doesn’t cover, and we flag those rather than improvise.

Accreditations

Trusted. Accredited. Insured.