Fire-rated sealing and fire stopping in Sandwick, Na h-Eileanan Siar
Fire-rated and intumescent sealing of service penetrations and linear gaps in Sandwick and across Na h-Eileanan Siar. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Head-of-wall gaps with no fire seal
- Expanding foam used as fire stopping
- Openings found when ceilings come down for a refit
Need fire stopping in Sandwick?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping for commercial buildings in Sandwick
A fire-rated sealant is only one part of a tested system: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. We match each opening to that detail before any sealant goes in. Site teams most often ask us about seals disturbed by maintenance and left open and unsealed joints where partitions meet the slab, on service gaps in risers, joints between fire-resisting walls and floors and linear gaps at wall heads. Searching for sealant specialists in Sandwick? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
Hotels and care homes around smaller places like Sandwick often have services added during refurbishment. A round of checks after M&E work is good practice, and any gaps found are sealed where fire-rated sealant is specified.
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’re clear about what is covered before work starts.
- Where
- Sandwick (HS1, HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Surface by surface
Risers and ceiling voids
Service risers and the voids above ceilings are where openings collect. Access to these areas is planned with you in advance, including keys, permits and any isolations.
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.
Nearby places to Sandwick
Other services in Sandwick
Your questions answered
How do Scotland’s building standards affect fire-rated sealant in Sandwick?
Scotland’s non-domestic Technical Handbook covers it in clause 2.1.14: penetrations keep at least the element’s fire resistance duration, with products tested for their end use. The detail is set by the designer and goes through the warrant process; we install the specified product to its tested detail.
Will you take on work at estates like Parkend Industrial Estate, close to Sandwick?
Yes, sites like Parkend Industrial Estate are within our area, along with the rest of Sandwick. To start, just phone 01277 525 020 or email us with the unit, the joints involved and your access times.
Do your applicators hold CSCS cards?
Yes. Our applicators hold CSCS cards.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
When can you be on site?
The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.
How much does the work cost?
That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a fixed quote and we’ll price it properly.
How long before the joints can be used?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.
Why act early in Sandwick
The longer openings stay, the more there tend to be: every new cable or pipe adds another. A schedule that is dealt with regularly stays manageable and avoids a much larger catch-up later. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, so a failed joint has time to cause damage. Resealing early avoids that.
The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
Why choose Mastic Doctor in Sandwick
- Workmanship guaranteed for 12 months
- Joints cleaned back to sound surfaces
- Work carried out by CSCS-carded applicators
- Products installed to the manufacturer’s instructions
Read what affects the cost and our accreditations and insurance.
Diagnose, treat, sign off
Before we leave any area, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For work around Sandwick, we aim for one trip, which is why we ask for photographs and a full list first. External joints need a dry spell as well.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Preparing the site
- Send asbestos survey details if the building is pre-2000
- Let us know about inductions and permits
- Make sure the joints can be reached
Ask for a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, give us a call on 01277 525 020 or use the quote form.
Advice
Service penetrations in Sandwick buildings
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, with products tested for that end use. Our part is installing the specified fire-rated sealant to its tested detail. Island jobs, Sandwick among them, are planned around the ferry and the forecast. The specification and photos of each penetration let us bring the right products first time.
Theatres, wards and plant rooms at sites like Western Isles Hospital (to the north-west of Sandwick) all have compartment walls crossed by services. Where a unit on an estate such as Parkend Industrial Estate (0.5 miles south-east of Sandwick), has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. Hotels like County Hotel, 1.2 miles to the west of Sandwick, are refurbished in phases, and each phase can open up compartment walls.
Sandwick is about 1 mile south-east of Stornoway, in Na h-Eileanan Siar. We send applicators to Sandwick for service penetrations. We work across 87 places in Na h-Eileanan Siar.
Postcode districts covered here: HS1 and HS2 for service penetrations. For a building on Stoneyfield, East Street and Olivers Brae or nearby, we can quote for service penetrations. We also cover Plasterfield (1 mile north), Sanndabhaig (1 mile east), Steinis (1 mile north), Stornoway (1 mile north-west) and Branahuie (1 mile east) for service penetrations. Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.
Near you in Sandwick
Other landmarks nearby include Western Isles Hospital (1.5 miles north-west) and Lewis Loom Centre (1.3 miles west). Green spaces nearby include Loch Àirigh na Lic.
What affects the price in Sandwick
Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:
- Specialist products, such as fire-rated or hygienic sealants
- Phasing around occupants
- Joint width, depth and condition
- Access and working height
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Details that help us quote
A few photographs plus some basic facts will normally do. It helps to include:
- When you need the work done
- The product your specification calls for
- Access details, including height
- Asbestos survey details if the building is older
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call 01277 525 020 or email drawings and photos if you’d rather talk the job through.
General trades versus a specialist
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
For most general trades, sealant is a sideline. 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.
Work for main contractors and building owners
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Sandwick can sit alongside others in a wider programme.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Sandwick. One quote can cover more than one site, so there’s one set of paperwork to deal with.