Fire Stopping in Walls
Fire-rated and intumescent sealing of service penetrations and linear gaps in Walls and across the Shetland Islands. CHAS accredited and fully insured, with a 12-month guarantee.
- Unsealed openings around new pipes and cables
- Snag lists that include open service penetrations
- Damaged fire seals in risers and voids
Need fire stopping in Walls?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
From enquiry to sign-off
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself typically taking anything from one day to a planned run of visits, depending on the number of seals and the access. Where we can, we combine work around Walls with other jobs nearby. Let us know if your dates have any give.
- We ask for the product and detail your designer has specified.
- We sort the openings by the detail each one needs.
- Improvised fillers and failed sealant are removed.
- Mineral wool or other backing is fitted where required.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
What we need from you
- For older buildings, check the asbestos register before work
- Let us know about inductions and permits
- Share your working hours and any access restrictions
Quotes
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.
Related advice
About our fire stopping in Walls
It helps to set out our role at the start. The designer, fire engineer or building control decides which fire stopping is required; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance in Walls and nearby. If you have hidden openings found during inspections and old intumescent sealant that has split away, we can help, on linear gaps at wall heads, cable penetrations and small duct penetrations where the tested detail allows alike. Whoever orders the work in Walls, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.
Around smaller places such as Walls, compartment walls and floors tend to be in schools, hotels, care homes and community buildings. Those penetrations are closed with the product the specification names, built up as tested.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Where
- Walls (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
What happens if it’s left?
Open service penetrations matter on ordinary days, not just in a fire: they also carry noise, draughts and smells between rooms. The specified fire seal closes the gap for all of these. Around smaller places like Walls, halls, stores and seasonal buildings may not be checked often, giving water time to get in. Early resealing prevents it.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
What you get with us
- Our applicators hold CSCS cards
- Workmanship guaranteed for 12 months
- Fully insured
- Over 20 years of commercial sealing
Read what affects the cost and our accreditations and insurance.
More services for Walls
Compartments and services around Walls
For an island location such as Walls, work is planned around ferry crossings and the weather. With the specification and photographs of the openings, the right fire-rated products travel with us. 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. Our part is installing the specified fire-rated sealant to its tested detail.
Wherever the building is near Walls, design and sign-off of fire stopping sit with the designer, fire engineer or building control; we install what has been specified.
Walls is in the Shetland Islands. Across the ZE2 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Across the Shetland Islands, 63 places are covered, Walls among them.
We take on service penetrations across the ZE2 postcode area. Among the streets we cover are New Road, Vagaland and Pier Road. We also cover Easter Skeld (5 miles south-east), Sandness (6 miles north-west), Melby (6 miles north-west), Aith (8 miles north-east) and Kalliness (9 miles east). A short drive away, we cover Lerwick (15 miles east), Sound (15 miles south-east), Scalloway (12 miles south-east) and Brae (14 miles north-east). For island and remote sites, travel and materials need planning ahead, so include the location in your enquiry.
Local landmarks in Walls
Open spaces near Walls include Loch of Bardister and Ward of Culswick.
Honest limits
We check first that sealant really is the fix. It isn’t the answer for:
- Fire doors, dampers or other fire safety equipment
- Deciding what a wall or floor needs, which belongs to the designer
- Large openings beyond what any sealant detail covers
If in doubt, give us a call on 01277 525 020 or send details through our quote form and we will say what we think before you book.
What we seal
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Cable penetrations
- Linear gaps at wall heads
- Pipe penetrations
- Service gaps in risers
FAQs: Walls
What do Scotland’s building standards say about service penetrations in Walls?
Under Scotland’s non-domestic Technical Handbook (clause 2.1.14), service penetrations should keep at least the wall or floor’s fire resistance duration, using products tested for their end use. We install what has been specified, to the manufacturer’s tested detail, while design and approval sit with the designer and the verifier.
Can you take on a job in Walls, on the island?
Yes, Walls is within the area we cover. We work across every Scottish council area. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
What site paperwork can you supply?
Each site asks for different documents, so tell us what you need and we will confirm it when we quote.
When is resealing likely to be due?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Do your applicators hold CSCS cards?
Yes. Our applicators hold CSCS cards, which many sites require.
When to call us in Walls
Damage plays a part too. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe.
What tends to prompt an enquiry:
- Old intumescent sealant that has split away
- Seals that don’t match their tested detail
- Head-of-wall gaps with no fire seal
- Hidden openings found during inspections
Around Walls, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product.
Comparing quotes
- Proof of insurance
- Whether their applicators hold CSCS cards
- How long is the guarantee, and what does it include?
- Will failed sealant be removed rather than covered?
When to bring in a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.