Midlothian · Scotland
Fire Rated Sealant in Lasswade
Problem with your fire-stopping gaps in Lasswade? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Linear gaps at the head of walls
- Unsealed gaps where pipes and cables go through a wall
- Door frames with gaps between frame and wall
Fire rated sealant in Lasswade
A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. 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 pipe & cable gaps, plasterboard & masonry and door frames, and people most often call us about door frames with gaps between frame and wall and fire stopping disturbed by later work.
For holiday lets, guest houses and community buildings in or near Lasswade, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Lasswade (EH19, EH18)
- Wider area
- Midlothian
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
The process
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It usually takes a few hours for a handful of gaps, and longer for a whole building. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Unsuitable material such as ordinary foam or silicone is cut out.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products.
Preparing for the visit
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
- Tell us if parking is tricky
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, drop us a line at info@mrmastic.co.uk.
Advice
What affects the quote in Lasswade
Your quote is based on your job. We take into account:
- How many rooms, windows or areas are involved
- The number and length of the joints
- Whether the work is at height
- Working hours on commercial sites
What it costs depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
What we need to know
To help us quote quickly, please include:
- How we’d reach the joints
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and send you a clear quote before we start.
Different surfaces, different methods
Service penetrations
Wherever a service goes through a fire-resisting wall or floor, there’s a gap around it. We seal it with a product tested for that service and gap size.
Linear gaps
A linear joint may need to allow for movement as well as fire. We choose a product and depth that suit the gap and the movement, following the tested detail.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What fire rated sealant looks like in Lasswade
Scotland has its own building regulations, the Building (Scotland) Regulations, with technical handbooks. We install fire-rated sealant to the product’s tested details; we don’t certify buildings or carry out fire risk assessments.
If you look after a building such as Lasswade High School Centre, fire-stopping around service openings should be restored whenever new services go in.
Lasswade is about 1 mile north-west of Bonnyrigg, in Midlothian. Wherever you are in the EH19 postcode area, we cover fire rated sealant for homes and businesses. We cover 33 towns and villages across Midlothian, large and small.
Every address in EH19 and EH18 is within our area for fire rated sealant. Whether your property is on Green Lane, Church Road and Polton Road or anywhere close by, our applicators can take on the job. With the A768 close by, Lasswade is easy for our applicators to reach. If you are just outside Lasswade, we cover Bonnyrigg (1 mile south-east), Polton (1 mile south-west), Loanhead (2 miles west), Burdiehouse (2 miles north-west) and Rosewell (2 miles south). Further out, we also cover Penicuik (5 miles south-west), Gorebridge (4 miles south-east), Mayfield (3 miles east), Shawfair (3 miles north), Roslin (3 miles south-west) and Easthouses (3 miles east).
Landmarks near Lasswade
In Lasswade, that means homes and buildings near Public Library and Drum Park. For rail, the closest station is Eskbank station, roughly 1.3 miles east. Other landmarks nearby include Cameron Toll Shopping Centre (3.5 miles north-west) and Midlothian Community Hospital (1.1 miles east). Green spaces nearby include Blackford Hill and Duddingston Loch.
Common problems we fix in Lasswade
Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
Common reasons people contact us include:
- Gaps around pipes and cables through fire-resisting walls
- Standard silicone or caulk in a fire-stopping gap
- Old fire sealant that has split or come away
- Sealant items on a fire risk assessment action list
Letting a property close to Eskbank station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What your quote should include
- The length of the guarantee
- Which sealant they’ll use, and why
- What happens if the job turns out different
- How the colour is chosen
Nearby places to Lasswade
Other services in Lasswade
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
FAQs for Lasswade
Can you help a landlord with a rental near Eskbank station?
Yes, landlords and agents are among the people we work for. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Will you come out to Lasswade?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
How long does the job take?
As a guide, most jobs take from a few hours to a few days, depending on the number of gaps and the access. Larger jobs naturally take longer.
Where is Mr Mastic based?
We work from Crawley. We cover Lasswade and the rest of Midlothian.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
What fire rating will the seal have?
We do not give ratings or certificates for our work. Your specification sets the requirement, and we fit a product whose tested details meet it, recording the locations and products.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Report cracked or damaged seals as soon as you notice them
- Tell trades working in the building that fire seals must be put back
- File the fire-stopping record where your assessor can find it
- Keep photos of seals that will be hidden
Do not 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.
Any job that breaks through a wall or ceiling should include resealing. Doing it at the time avoids leaving gaps behind.