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

Renfrew fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Renfrew and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Damaged fire seals in risers and voids
  • Snag lists that include open service penetrations
  • Hidden openings found during inspections
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Need fire stopping in Renfrew?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Fire stopping in Renfrew, done properly

Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it, matching the product and detail it names. With no specification in place, the first step sits with your designer or fire engineer, not with us. Site teams most often ask us about expanding foam used as fire stopping and hidden openings found during inspections, across pipe penetrations, joints between fire-resisting walls and floors and service gaps in risers. Most enquiries from Renfrew 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.

In a Scottish town such as Renfrew, buildings with compartment walls include schools, health centres, care homes and offices. The Scottish Technical Handbook expects penetrations to be fire stopped to the wall or floor’s fire resistance duration, using products tested for how they’re actually used.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Location
Renfrew (PA4, G52, G51, PA3)
Wider area
Renfrewshire
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

When it isn’t the sealant

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Fire risk assessments, a job for a competent assessor
  • Openings that need collars, wraps, batts or boards rather than sealant
  • Walls or floors that aren’t fire-resisting to begin with

Not sure which it is? You can speak to us on 01277 525 020 or email a schedule or drawings and we will tell you honestly.

Where we work in Renfrew

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

Looking after the joints

For the best life from the joints:

  • Make fire stopping part of every scope that crosses a fire-resisting wall
  • Foam or ordinary sealant is never a fire-seal repair
  • Check with the data sheet before painting over fire sealant
  • Look above ceilings when tiles are lifted for other jobs

During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open instead of being left for someone else.

When to call us in Renfrew

Some service penetrations were never sealed at all, often hidden above suspended ceilings or behind boxing. They come to light during inspections, refits or when another trade lifts a tile.

What tends to prompt an enquiry:

  • Unsealed openings around new pipes and cables
  • Improvised or mixed-product fire seals
  • Fire seals cut back for extra cables and never reinstated
  • Fire sealant pulled out of the opening

For an estates team at a campus like University of Glasgow Garscube Campus, which lies north-east of Renfrew, summer M&E works are usually followed by a round of penetration sealing.

What to look for in a quote

  • Is the sealant right for the movement and the substrate?
  • Do they follow the manufacturer’s priming guidance?
  • How joint depth will be controlled
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

What sets the cost

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • The size and state of each joint
  • Travel to remote or island sites
  • Which sealant the job calls for
  • How much existing material needs removing

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

Before you send an enquiry

A good diagnosis starts with the right details. Tell us:

  • Photos of the joints, close up and from further back
  • Any specification or named product
  • Rough lengths or quantities, or drawings if you have them
  • What the building is and how it’s used

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.

Leave it or put it right?

Leave a penetration open and smoke and fire can cross into the next compartment far earlier than intended. While the openings can be reached, sealing them is normally straightforward. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. In Renfrew, rain and frost work into any failed joint, so small failures grow. Resealing early keeps it a simple job.

Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.

Why clients in Renfrew choose us

  • Health and safety: CHAS accredited
  • Failed material removed, not covered up
  • Workmanship guaranteed for 12 months
  • Work to your specification and the manufacturer’s guidance

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

Renfrew: questions and answers

Can you seal around new services in a hotel near Renfrew?

Yes, where fire-rated sealant is the specified product. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we will tell you if the detail calls for a collar, wrap or batt instead.

Will you work in a care home in Renfrew without moving residents out?

Yes, with the manager deciding the order and timing of rooms. We follow the home’s own procedures throughout.

Does weather matter for sealant work?

Outside, 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. Inside work is seldom held up.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

Are you CHAS accredited?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member.

What site paperwork can you supply?

Each site asks for different documents, so list what you need, whether RAMS, insurance or CSCS details, and we’ll confirm with the quote.

How long does a typical visit take?

That varies with the scale of the job, but the work typically takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Fire stopping around Renfrew: how the place shapes the job

Under the Scottish non-domestic Technical Handbook, clause 2.1.14, penetrations should be fire stopped to at least the wall or floor’s fire resistance duration, using products tested for the way they’re used. We install what’s specified, to the product’s tested detail. Three care or nursing homes sit less than 2 miles from Renfrew. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.

Colleges such as West College Scotland - Paisley Campus, 1.8 miles to the south-west of Renfrew, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. For a hospital such as The Queen Elizabeth University Hospital Campus, which lies east of Renfrew, penetration sealing is usually phased ward by ward, with infection-control rules agreed first.

Renfrew is about 3 miles north-east of Paisley, in Renfrewshire. We cover Renfrew, with the same fixed quotes and 12-month guarantee as everywhere else. Renfrew is one of 23 places in Renfrewshire on our list for service penetrations.

Business premises anywhere in PA4, G52, G51 and PA3 are within our area. We cover commercial and managed buildings on High Street, Laymoor Square and Crofton Square and the roads nearby. Access to Renfrew is via the A8 and A736 among other routes. We also cover Shieldhall (1 mile south-east), Garscadden (1 mile north-east), Scotstounhill (1 mile north-east), Penilee (1 mile south-east) and Yoker (1 mile north) for service penetrations. A short drive away, we cover Paisley (3 miles south-west), Johnstone (6 miles south-west), Erskine (3 miles north-west), Bishopton (5 miles north-west), Glenburn (4 miles south-west) and Charleston (3 miles south-west).

Local landmarks in Renfrew

Locally, jobs take us to sites close to Robertson Park and Wheatsheaf Public House and the streets around them. The nearest railway station is Hillington West station, about 1.2 miles south-east of the centre. Nearby you’ll also find Renfrew Castle (0.5 miles north-east) and Renfrew Museum (0.5 miles north). For a walk, there’s Castle Hill and Kilmardinny.

Map of Renfrew © OpenStreetMap contributors

On site: what to expect

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. In a Scottish town such as Renfrew, outside work is planned around the weather and inside work around the occupants. Photos or drawings let us give a fixed quote and a realistic plan.

  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. We tell you about openings that need a different product.

Getting the site ready

  • Explain the parking and delivery arrangements
  • For older buildings, check the asbestos register before work
  • Let us know about inductions and permits

Ask for a quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, ring 01277 525 020 or use the quote form.

Get a price

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