Highland · Scotland
Floor & skirting joints in Thurso, Highland
Floor joint sealing for Thurso, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Perimeter joints in tiled floors filled with grout
- Gaps between floors and kitchen plinths
- Skirting that has pulled away from the floor
About our floor joint sealing in Thurso
Gaps along the bottom of skirting are common in new and older homes alike. Caulk tends to crack there, so we close it with a flexible sealant instead. If you have floor edges that trap water and grime and gaps between floors and kitchen plinths, we can put it right.
Many newer Scottish homes have timber frames, which settle as they dry out, so skirting and floor joints can open up in the first year or two.
Big or small, it’s backed by our one-year guarantee in Thurso and across Highland.

- Location
- Thurso (KW14)
- Wider area
- Highland
- Cover
- One year on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
New homes and floors in Thurso
Across Highland, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and they do not all move the same way. That is why the skirting and threshold joints need a flexible seal. Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles.
For site and facilities teams at buildings such as Thurso High School, entrance and corridor floor joints take a lot of traffic.
Thurso is in Highland. From the centre of Thurso to the outskirts, floor joint sealing is available for homes and businesses alike, from flats and houses to offices and hotels. Thurso is one of 253 places in Highland we cover for floor joint sealing.
Our applicators cover all of the KW14 postcode area for floor joint sealing and the streets around it. You’ll find streets such as Sir John's Square, Gerry Square and High Street, all of which we cover. Being close to the A9 and A836, Thurso is easy for our applicators to reach. Other places close to Thurso include Scrabster (2 miles north-west), Glengolly (2 miles south-west), Janetstown (3 miles south-west), Murkle (3 miles east) and Forss (4 miles west). As one of the bigger places in Highland, Thurso has homes, rented property and businesses of every kind. If you’re somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Landmarks near Thurso
Thurso has its own railway station: Thurso station. Other landmarks nearby include Scrabster Castle (0.7 miles north-west) and Thurso Heritage Museum (0.6 miles north-west).
Surface by surface
Thresholds
Where a tiled floor meets timber or carpet, the joint takes movement from both sides. A flexible sealant bridges them.
Skirting boards
Skirting pulls away from the floor as floors shrink and settle. We seal them with a flexible sealant rather than caulk in a colour to suit.
Keeping the joints in good condition
So the new joints stay in good condition:
- Check skirting joints after the heating season
- Keep caulk for dry, still joints only
- Act on grout cracks that run in a straight line
- Use a well-wrung mop rather than flooding the floor
Avoid flooding the floor when you clean. Keeping the edges drier helps the sealant last longer.
Small gaps are quick to seal. Left alone, they collect dirt and widen over time.
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Movement too big for a sealant joint
- Bouncy or failing floorboards
- Leaks from a failed tanking system
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Surfaces we seal
- Skirting boards
- Tiled floors
- Thresholds
- Commercial floors
- Wet room & bathroom floors
- Concrete floor joints
Landlords, agents and businesses in Thurso
If you manage several properties in or around Thurso, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Landlords and letting agents in Thurso can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Also in Thurso
Do you need floor joint sealing in Thurso?
A new floor or screed shrinks and settles as it dries. Gaps at the edges appear in the first year or so.
Look out for these signs:
- Threshold joints that have opened or worn
- Cracked caulk along skirting in bathrooms and kitchens
- Grout used at the floor edge instead of sealant
- Failed seals where bathroom floors meet baths and panels
Letting a property close to Thurso station? Then a tidy floor and skirting joint helps a rental look ready for the next tenant.
Comparing quotes
- How long the guarantee is
- How the surfaces are prepared before sealing
- Who turns up on the day
- Is VAT in the price?
Thurso: your questions answered
What guarantee comes with floor joint sealing in Thurso?
All our work, in Thurso and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can you help a landlord with a rental near Thurso station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear price.
How long does floor joint sealing take?
It depends on the size of the job, but most jobs take a morning or an afternoon for most homes. We will give you a better idea when we quote.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Can I add another job to the visit?
Yes. Just list everything you need and we will quote it together.
Will I be able to paint over the new joint?
If you tell us beforehand, yes. Joints that will be painted get a paintable product.
Do you work on commercial floors?
Yes. We reseal concrete floor joints in commercial and industrial units. We will talk through the traffic and choose a sealant suited to it.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before we start.
What happens on the day
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a morning or an afternoon for most homes. Parking around Thurso is rarely difficult, though older streets in the centre can be tight. If you are in a flat with a shared stair or a door entry system, let us know when you book.
- First we check the joint and the floor and agree which sealant suits it.
- Old caulk, grout or sealant is removed from the joint.
- The joint is vacuumed clean, with backing fitted wherever depth matters.
- The sealant goes in, chosen for the floor and coloured to suit it.
- The joint is tooled to a neat finish and we tell you when it can take feet and a mop.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
Getting a quote
Need a quote? Please email us at info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear quote before any work starts.
