Midlothian · Scotland
Fire-rated sealant in Arniston, Midlothian
Fire-stopping gaps in Arniston need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Fire seals that have cracked with movement
- Gaps left after a refit or conversion
- Ordinary sealant used where a fire-rated product was needed
How we handle fire rated sealant in Arniston
Door frame gaps, linear joints and holes around services all have their own details. Measuring the gap and checking what it’s made of comes first, then apply it to the depth its tested detail calls for. We work on linear gaps, plasterboard & masonry and service penetrations, and people most often call us about fire seals that have cracked with movement and sealant items on a fire risk assessment action list.
Commercial work around smaller Scottish places tends to mean hotels, guest houses, schools and halls rather than offices. All of them have washrooms, kitchens and fire-rated joints that need looking after.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Arniston (EH23)
- Region
- Midlothian
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

When something else is needed
We’ll always be straight with you, so here’s what new sealant will not do:
- Walls or floors that weren’t built to resist fire
- Openings too large for sealant, which need batts, boards or another system
- Deciding what fire stopping a building needs
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Surfaces we seal
- Pipe & cable gaps
- Linear gaps
- Door frames
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
Different surfaces, different methods
Masonry and concrete
Preparation counts on brick, block and concrete. The gap is cleaned and backed where required before applying the sealant.
Flats and HMOs
Converted houses often have gaps around old and new services. The gaps on your list are sealed with a fire-rated product and record where they are.
How we quote for fire rated sealant
For a quick quote, just ask. The main things that affect it are:
- The number and length of the joints
- When we can work, for business premises
- How easy the joints are to reach
- The number of rooms or windows
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- How many joints, rooms or windows are involved
- Where the property is
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
When to call us in Arniston
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it is not installed as tested. We see plenty of fire stopping that was hurried, especially where it was squeezed in at the end of a project.
Any of these means the joints need attention:
- Joints picked up in a fire-stopping survey
- Standard silicone or caulk in a fire-stopping gap
- Unsealed gaps where pipes and cables go through a wall
- Gaps where walls meet ceilings or slabs
For buildings such as Hunterfield Road Church, gaps around pipes and cables are worth checking after any building work there.
Comparing quotes
- Whether they seal over old material or remove it
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
What we do, step by step
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes from a few hours to a few days, depending on the number of gaps and the access from start to finish. Outdoor work around Arniston depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We start with the survey or action list, checking the size and surfaces of every gap.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
How to prepare
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
Ask for a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.
Related advice
Fire rated sealant in Arniston: local notes
Scotland has its own building regulations, the Building (Scotland) Regulations, with technical handbooks. Fire-rated sealant is installed to the manufacturer’s tested details, though we don’t certify buildings or do fire risk assessments.
For landlords with property near Gorebridge station, any gap left by new services in shared walls should be closed with a fire-rated product.
Arniston is about 4 miles south-east of Bonnyrigg, in Midlothian. Every kind of property in Arniston is covered for fire rated sealant. The work is guaranteed for a year. Our Midlothian coverage runs to 33 places, and Arniston is one of them. For nearby work, see our Edinburgh page.
Here we cover the EH23 postcode area for fire rated sealant. Streets in the area include Bellsmains, Cadwell Path and Cadwell Walk, and we cover them all. Neighbouring places we cover for fire rated sealant include Birkenside (1 mile north), Gorebridge (1 mile north), North Middleton (1 mile south-east), Carrington (2 miles west) and Gowkshill (2 miles north). Further out, we also cover Bonnyrigg (4 miles north-west), Dalkeith (4 miles north), Penicuik (7 miles west), Loanhead (5 miles north-west), Mayfield (3 miles north) and Shawfair (7 miles north).
Landmarks near Arniston
Arniston’s nearest station is Gorebridge station, about 0.7 miles north. Nearby you’ll also find Midlothian Community Hospital (3.8 miles north-west) and Catcune Castle (0.5 miles east). Green spaces nearby include Edgelaw Reservoir.
Questions from Arniston
Can you help a landlord with a rental near Gorebridge station?
Yes, landlords and agents are among the people we work for. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Are the rules for fire-rated sealant different in Scotland?
Scotland has its own building regulations, the Building (Scotland) Regulations, with their own technical handbooks. Fire-rated sealant has to go in to the product’s tested details, and we follow them. We don’t certify buildings or do fire risk assessments; your assessor or building control can tell you what’s required.
Can you do several jobs on one visit?
Yes. Just list everything you need and we will quote it together.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
Can I use normal mastic around a pipe through a fire wall?
No. It might close the gap, but it is not a fire-rated seal. Use a product tested for that gap and service, or ask us to do it.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Ask every contractor to reseal any fire stopping they disturb
- Keep general-purpose foam and caulk away from fire-stopping gaps
- File the fire-stopping record where your assessor can find it
- Ask which product was used before you paint
Tell other trades that the gaps have been sealed, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.
What else we do in Arniston
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
