Lerwick fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps in Lerwick. CHAS accredited and fully insured, with a 12-month guarantee.
- Openings found when ceilings come down for a refit
- Fire seals cut back for extra cables and never reinstated
- Open linear gaps along the top of fire-resisting walls
Fire stopping in Lerwick
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
For managing agents and facilities managers
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Lerwick can sit alongside others in a wider programme across the Shetland Islands.
About our fire stopping in Lerwick
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. If you have fire sealant pulled out of the opening and unsealed joints where partitions meet the slab, we can put it right, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, in Lerwick it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Refurbishments in small hotels, schools and care homes around places like Lerwick can leave gaps around new services. We fit the specified fire-rated sealant as its published detail shows and raise it if another product is needed.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Lerwick (ZE1)
- Region
- Shetland Islands
- Guarantee
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Questions we are asked in Lerwick
Can you seal around new services in a hotel near Lerwick?
Yes. We install fire-rated and intumescent sealant where it is specified. Each seal follows the tested detail, and rooms are done in turn.
Is North Ness Business Park, near Lerwick, within your area?
Yes. We cover Lerwick and the area around it, including industrial estates, business parks and retail parks such as North Ness Business Park. Send details of the unit and the work through our quote form for a quick quote.
Do your applicators hold CSCS cards?
Yes. If you need card details for site access, tell us and we’ll confirm them with the quote.
Do you work to architects’ specifications?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
How do you choose the sealant?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Does the weather affect the work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
How long will the new sealant last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
From enquiry to sign-off
Tell us your site hours and access windows and we will plan around them. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Jobs near Lerwick are often grouped with others in the same area. Let us know if your dates have any give.
- 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.
- We tell you about openings that need a different product.
Preparing the site
- Point out any areas we must not close
- For older buildings, check the asbestos register before work
- Move anything stored against the joints
Quotes
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, phone 01277 525 020 or email drawings and photos.
Read more
Cost factors for service penetrations
Before we quote, we look at:
- Whether old sealant has to be cut out first
- Joint width, depth and condition
- The total length or number of joints
- Access and working height
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
Sending details for a quote
We can often quote from photographs and a few details. It helps to include:
- Anything awkward about access or site hours
- The site address and postcode
- Drawings or a marked-up plan, if available
- Photos of the joints, close up and from further back
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or use the quote form.
What the job involves on each surface
Small ducts
Some fire-rated sealant details cover small ducts. Larger or fire-rated ductwork typically needs a different solution set by the designer and we flag that rather than guess.
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and loose debris are cleared out of the opening, so the sealant and any backing sit properly.
What happens if it’s left?
Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme. For buildings near Lerwick, dealing with all the failing joints at once saves return trips. Send photos and we will quote for everything together.
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.
Why choose Mastic Doctor in Lerwick
- Work to your specification and the manufacturer’s guidance
- CHAS accredited
- Old sealant cut out, never sealed over
- Fully insured, including public liability cover
See how commercial sealant jobs are priced and our accreditations and insurance.
Honest limits
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Openings that need collars, wraps, batts or boards rather than sealant
- Reviewing a building’s overall fire safety
- Deciding what a wall or floor needs, which belongs to the designer
Not sure which it is? You can give us a call on 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
Surfaces we seal
- Linear gaps at wall heads
- Service gaps in risers
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Cable penetrations
Compartments and services around Lerwick
Lerwick has plenty of hotels close by, all within 2 miles. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal. Island jobs, Lerwick among them, are planned around the ferry and the forecast. Photos of each opening and the specification mean the right products make the trip.
Older community buildings such as St Margaret's Roman Catholic Church that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Hotels like The Lerwick Hotel (to the south-east of Lerwick) are refurbished in phases, and each phase can open up compartment walls. Schools such as Anderson High School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.
Lerwick is in the Shetland Islands. If you’re looking for fire stopping in Lerwick, we can help. Lerwick is one of 63 places we cover in the Shetland Islands for service penetrations.
Commercial sites across ZE1 are covered. Buildings on High Street, Market Street and Church Road are within our area. Main routes into Lerwick include the A969 and A970. We also cover Sound (1 mile south-west), Gremista (1 mile north), Heogan (1 mile north-east), Grindiscol (2 miles south-east) and Gunnista (2 miles north-east) for service penetrations. Lerwick ranks among the main centres of the Shetland Islands, with offices, shops, schools and other public and commercial buildings, and we cover them all. For island and remote sites, travel and materials need planning ahead, so include the location in your enquiry.
Landmarks near Lerwick
Locally, jobs take us to sites close to Gilbertson Park and Grand Hotel and the streets around them. Other landmarks nearby include Gilbert Bain Hospital (under half a mile south) and Shetland Museum (under half a mile north-east). Not far away are Setter Hill and Clickimin Loch.