Shetland Islands · Scotland
Fire-rated sealant in Symbister, Shetland Islands
Specialist fire rated sealant for Symbister: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Old fire sealant that has split or come away
- Gaps filled with a product that is not fire-rated
- Unsealed gaps around fire door frames
Fire rated sealant for homes and businesses in Symbister
Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. Anything unsuitable comes out first and reseal with a fire-rated product tested for that kind of gap. If you have linear gaps at the head of walls and cracked or shrunken fire-rated sealant, we can help, on plasterboard & masonry, pipe & cable gaps and flats & HMOs alike.
For a place like Symbister, the journey and timings are planned in advance, so the job can fit around guests, residents or opening hours where possible.
All of our work is guaranteed for twelve months.

- Location
- Symbister (ZE2)
- Region
- Shetland Islands
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we do, step by step
When we arrive, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before we start. The work normally takes from a few hours to a few days, depending on the number of gaps and the access. Around Symbister, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We plan the order of work and access, floor by floor or flat by flat.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
If you are in Symbister and need fire rated sealant, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
Fire rated sealant in Symbister: local notes
For seaside hotels, guest houses and holiday lets around Symbister, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.
Whether the job is in Symbister itself or nearby, the right material for each joint matters as much as a neat finish.
Symbister is in the Shetland Islands. If you need fire rated sealant in Symbister, please email us at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover the Shetland Islands. Our the Shetland Islands coverage runs to 63 places, Symbister among them.
Every address in ZE2 is covered for fire rated sealant. Fire rated sealant is available to properties on Rocky Road, Saeter and North Gardentown. If you’re just outside Symbister, we cover Sandwick (1 mile south-west), Clate (1 mile south), Hamister (1 mile north), Huxter (1 mile east) and Tripwell (1 mile north-east). Larger places within reach include Lerwick (14 miles south), Sound (15 miles south) and Brae (12 miles west). If you are somewhere remote, a little more planning is needed.
Around Symbister
The countryside around Symbister includes Ward of Clett and Bu Water.
What affects the quote in Symbister
For a quick quote, just ask. What matters most is:
- The size of the job
- The number of rooms or windows
- The product the joint needs
- Working hours on commercial sites
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Where the property is
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
When it isn’t the sealant
We’ll always be straight with you, so here’s what new sealant will not do:
- Fire doors that need new seals, closers or hardware
- Openings too large for sealant, which need batts, boards or another system
- Issuing a fire rating or certificate for a building
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before you book.
What we seal
- Flats & HMOs
- Service penetrations
- Door frames
- Pipe & cable gaps
- Plasterboard & masonry
- Linear gaps
What else we do in Symbister
Surface by surface
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
Door frames
Frame gaps are generally hidden behind the architrave. We seal any open gap to the product’s tested details so the architrave can be refitted.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Allow for resealing whenever new services are run
- Flag any open gap you spot round a pipe or cable
- Photograph sealed gaps before they’re covered up
- Tell trades working in the building that fire seals must be put back
Don’t drill through or remove a fire seal without putting it back properly. New services through a sealed wall should include fire stopping in the plan.
A flagged gap shouldn’t wait for the next assessment. Have it sealed, then keep the record.
When to call us in Symbister
Sometimes the wrong product was used from the start: general-purpose foam, everyday silicone or caulk where a fire-rated seal was needed. It may look fine, but it is not a fire-rated seal.
These are the problems we are asked about most:
- Gaps filled with a product that is not fire-rated
- Door frames with gaps between frame and wall
- Open joints along the top of partitions
- Gaps left after a refit or conversion
In and around Symbister, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint.
What to look for in a quote
- How the joint is cleaned and prepared
- What product goes in the joint
- What happens if they find a problem under the old sealant
- When the joint can take water or movement
Common questions in Symbister
Is Symbister in your area for fire rated sealant?
Yes, Symbister is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Is Symbister within the area you cover?
Yes. Symbister is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Just mention lanes, gates or anything else about the route when you book.
Can you fill the gap behind a fire door frame?
Yes, if the gap is within the product’s tested range. Our work is the gap around the frame, and we will mention anything we notice about the door.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Do you work in flats, HMOs and commercial buildings?
Yes. Occupied flats, HMOs, offices and schools are all fine, with access planned around residents or staff. Early starts or out-of-hours work can be arranged.
Where are you based?
Mr Mastic is based in Crawley. We cover Symbister and the rest of the Shetland Islands.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
