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

Fire-rated sealing and fire stopping in Craigends, Renfrewshire

Fire stopping for Craigends, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Snag lists that include open service penetrations
  • Head-of-wall gaps with no fire seal
  • Openings found when ceilings come down for a refit
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m public liability

Need fire stopping in Craigends?

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

How we handle fire stopping in Craigends

We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance in Craigends and nearby. Site teams most often ask us about open linear gaps along the top of fire-resisting walls and openings left by services added after handover, across linear gaps at wall heads, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows. For commercial sealant work in Craigends, you deal with one contact from quote to sign-off, whether it’s one building or several.

Hotels and care homes around smaller places like Craigends often have services added during refurbishment. We fit the specified fire-rated sealant as its published detail shows and raise it if another product is needed.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Craigends (PA6)
Wider area
Renfrewshire
Cover
12 months on our workmanship
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Our process

Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. Jobs near Craigends are often grouped with others in the same area, to make the most of each trip. Tell us how flexible your dates are.

  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 so the seal starts clean.
  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.

What we need from you

  • Share the asbestos register for older buildings
  • Agree which areas must stay open
  • Tell us what induction or permit system the site runs

Quotes

Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Ask for a quote

Related advice

Work for main contractors and building owners

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Craigends can form part of a wider programme.

Looking after the joints

Cleaning and maintenance staff play a part too. Share these points with them:

  • Look above ceilings when tiles are lifted for other jobs
  • Agree the fire-stopping specification before services go in
  • Foam or ordinary sealant is never a fire-seal repair
  • Check with the data sheet before painting over fire sealant

After the work, brief anyone else working in the area that the openings are now sealed. If a seal has to be opened for a new service, it should be reinstated to the same detail.

On fit-outs, get the fire-stopping specification agreed before the services go in. Details can then be picked to suit the actual pipes, cables and ducts, and the work runs in step with the M&E.

Doing it in-house

Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Honest limits

We check first that sealant really is the fix. It won’t put right:

  • Gaps in walls that were never built as compartment walls
  • Writing the fire-stopping specification
  • Fire doors, dampers or other fire safety equipment

If you’re not sure, just phone 01277 525 020 or use the quote form and we will give you a straight answer.

Where we work in Craigends

  • Cable penetrations
  • 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

Penetration seals near Craigends

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, using products tested for the way they’re used. We install fire-rated sealant to that tested detail where it is specified.

Halls and meeting rooms at places like St Fillan's R.C. Church and School sometimes gain new services, and any compartment wall crossed needs the specified seal. Schools such as Gryffe High School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards. Large healthcare estates like Merchiston Hospital (1.2 miles south of Craigends) change their services often, so penetration seals are worth checking after M&E work.

Craigends is about 2 miles north of Johnstone, in Renfrewshire. Craigends sits inside our coverage and the rest of Renfrewshire, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 23 places in Renfrewshire, large and small. Sites around Glasgow have their own page, about 10 miles away.

Work on service penetrations is covered throughout PA6, whatever the building. We cover commercial and managed buildings on Magnus Road, Viking Crescent and Leman Drive and the roads nearby. Close to Craigends, our area also takes in Crosslee (1 mile west), Houston (1 mile north-west), Brookfield (1 mile south), Linwood (1 mile south-east) and Bridge of Weir (2 miles west). Nearby towns on our patch include Paisley (4 miles south-east), Renfrew (6 miles east), Erskine (4 miles north-east), Bishopton (3 miles north), Glenburn (5 miles south-east) and Charleston (5 miles south-east).

Landmarks near Craigends

In Craigends, that means premises near Fox and Hounds Inn and Linwood High School and the streets around them. The nearest railway station is Johnstone station, roughly 2.1 miles south-east of the centre. Well-known places in the area include Merchiston Hospital (1.2 miles south) and Ranfurly Castle (2.2 miles west). Green spaces nearby include Whitemoss Dam and Walls Hill.

Map of Craigends © OpenStreetMap contributors

Leave it or put it right?

A seal that doesn’t match its tested detail gives false comfort. The fix is to remove it and reinstall to the detail, so it makes sense to get it right first time. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, giving water time to get in. Early resealing prevents it.

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why clients in Craigends choose us

  • Workmanship guaranteed for 12 months
  • Over 20 years of commercial sealing
  • Constructionline member for supplier checks
  • Fixed quotes based on photographs, drawings or a visit

Read what affects the cost or how we’re accredited.

FAQs: Craigends

Can you work at a site such as Mossedge Industrial Estate, by Craigends?

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

Is a hospital such as Merchiston Hospital somewhere you can work?

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you have public liability insurance?

Yes. Our insurance certificate can be sent alongside the quote.

Will you just go over the old sealant?

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

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.

Is BS 476 being phased out?

In England, references to the older BS 476 national classes are being removed from Approved Document B from 2 September 2029. The European route, BS EN 13501-2, then applies. Product selection stays with your designer.

Who decides which product is used?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Accreditations

Trusted. Accredited. Insured.