North Dell fire stopping
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in North Dell. Send details for a fixed quote.
- Hidden openings found during inspections
- Unsealed joints where partitions meet the slab
- Seals disturbed by maintenance and left open
Fire stopping for North Dell sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping in North Dell
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls. We close the openings listed on your schedule, using the specified sealant and detail. If you have openings found when ceilings come down for a refit and improvised or mixed-product fire seals, we can help, on small duct penetrations where the tested detail allows, service gaps in risers and linear gaps at wall heads alike. A single leaking joint is often how a building in North Dell first comes to us: we look at the rest while we’re there and tell you what we find.
Around smaller places such as North Dell, compartment walls and floors tend to be in schools, hotels, care homes and community buildings. Where services pass through, specified fire-rated sealant is installed following the manufacturer’s guidance for that wall or floor.
We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Where
- North Dell (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Our process
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before the next one starts. For a building near North Dell, directions, keys and a contact on the day are worth sorting early. That goes into the plan alongside the quote.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Before we start on site
- Send your site hours and access windows
- Flag any permit to work we will need
- Tell us which areas need to stay in use
Ask for a quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to give us a call on 01277 525 020 or send photos by email with what you know.
Advice
Penetration seals near North Dell
Being on an island, North Dell means planning around ferry times as well as the weather. We need the specification and a count of penetrations before we sail. 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.
For a building such as Church of Scotland, new heating or data runs are the usual reason penetrations need sealing. Around North Dell, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product.
North Dell is about 18 miles north of Stornoway, in Na h-Eileanan Siar. Anywhere in HS2, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. North Dell is one of 87 places we cover in Na h-Eileanan Siar.
Postcode districts covered here: HS2 for service penetrations. We also cover Cross (1 mile east), Nis (2 miles east), Ness (2 miles east), Lìonal (2 miles north-east) and Lionel (2 miles north-east) for service penetrations. For island and remote sites, we plan travel and materials carefully, so the full address helps from the start.
Near you in North Dell
A little further out are Comunn Eachdraidh Nis (under half a mile east). Open spaces near North Dell include Loch Langavat.
After the work
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:
- Ask which product is in place before decorating
- Brief every trade that openings they make must be sealed
- Look above ceilings when tiles are lifted for other jobs
- File the specified details where the next contractor can find them
After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail, by someone who knows the system.
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.
Your questions answered
Which Scottish guidance covers penetration seals in North Dell?
The non-domestic Technical Handbook, clause 2.1.14, expects a penetration to keep at least the wall or floor’s fire resistance period, with proprietary products tested for the use they’re put to. We install what has been specified, to the manufacturer’s tested detail, while design and approval sit with the designer and the verifier.
Is North Dell inside the area you cover, given it’s on an island?
Yes. Islands are part of our area, North Dell included. Ferry times and the weather set the plan, so we ask for photographs and a full list first.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.
Do you seal on top of existing sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Can the building stay open while you work?
In most cases, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
Is your workmanship covered by a guarantee?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
More services for North Dell
What affects the price in North Dell
There’s no standard rate for sealant work, because every site is different. What we look at:
- How much there is to seal
- Removal of failed or old sealant
- The size and state of each joint
- Location, for remote and island sites
The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote once you have the details.
What we need to price the job
However big the job, the same details help:
- When you need the work done
- The product your specification calls for
- A wide shot and a close-up of the area
- The site address and postcode
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Owners, agents and contractors
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in North Dell can sit alongside others in a wider programme across Na h-Eileanan Siar.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.
When to bring in a specialist
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
What the job involves on each surface
Linear joints
Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in, with no gaps along the run.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest against the detail’s limits.