Edinburgh · Scotland

Floor Joint Sealing in Mountcastle

Specialist floor joint sealing for Mountcastle: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Grout used at the floor edge instead of sealant
  • Open joints that fill with dirt
  • Gaps between floors and kitchen plinths

Need floor joint sealing in Mountcastle?

What affects the cost of floor joint sealing

There’s no set price list, because jobs vary so much. The quote depends on:

  • The product the joint needs
  • The number and length of the joints
  • Mould in or behind the old joints
  • How much old sealant there is and how hard it is to remove

Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.

Asking for a quote

What to tell us when you ask for a quote:

  • How we’d reach the joints
  • The rough size of the job
  • A few pictures by email, if you can
  • Whether it’s a home or a business

Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.

Floor joint sealing in Mountcastle

Painted skirting can be sealed with a flexible product that can be painted over. In wet areas we’d normally use silicone. We work on concrete floor joints, thresholds and wet room & bathroom floors, and people most often call us about dirt and water collecting in open floor joints and caulk that has cracked where the floor moves.

Offices, shops and commercial units in Scotland’s cities have floors with movement joints and thresholds that take heavy wear. Those joints, and plot mastic for developers, are part of the work we cover in Mountcastle.

We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Mountcastle (EH15, EH8, EH7)
Region
Edinburgh
Cover
12 months on all our work
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Page updated
26 October 2026

Questions from Mountcastle

Do you work for landlords with property near Brunstane station?

Yes, we work for landlords and agents. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.

Is there a guarantee on floor joint sealing in Mountcastle?

All our work, in Mountcastle and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.

Do you work on commercial floors?

Yes. We reseal concrete floor joints in commercial and industrial units. The product is chosen for the traffic the floor takes.

Can you seal where the floor meets the bath panel?

Yes. Where a floor meets a bath panel, kitchen plinth or skirting in a wet area, we use a flexible silicone so water cannot get into the gap.

Do you remove the old sealant?

Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.

What information do you need?

Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply drop us a line at info@mrmastic.co.uk.

Should I try DIY first?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.

Is caulk good enough for skirting?

Caulk is fine for dry joints that do not move, but it cracks where there’s movement or water. For most floor joints, we use a flexible sealant.

What we do, step by step

Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for most rooms, longer for large commercial floors. In a city area like Mountcastle, parking may be by permit or pay-and-display, so tell us what’s nearby. For flats, mention the door entry system and any shared-stair arrangements.

  1. We look at the gap and the floor type and agree the right sealant.
  2. Old caulk, grout or sealant is removed from the joint.
  3. We clean and vacuum the joint and fit backing where the depth needs setting.
  4. The sealant goes in, chosen for the floor and coloured to suit it.
  5. The joint is tooled to a neat finish and we tell you when it can take feet and a mop.

How to prepare

  • On commercial sites, let us know about site rules
  • Where the joints are inside, avoid wetting them before we arrive
  • Let us know about parking restrictions

Ask for a quote

Want a quote for floor joint sealing? Please email us at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before work begins.

Get a price

Related advice

Surface by surface

Thresholds

Thresholds between rooms meet two floors and often a door frame. We seal them with a flexible sealant that suits both sides.

Concrete floor joints

Old filler, dust and debris are cleaned out of the joint. We fit backing where needed.

Signs you need floor joint sealing in Mountcastle

Some floors were never given a perimeter gap or movement joint. It pushes against the walls and skirting as it expands, and the sealant or grout breaks.

The most common problems we see are:

  • Gaps between floors and kitchen plinths
  • Skirting caulk that keeps splitting
  • Grout cracking in a straight line across a floor
  • Failed joint filler in concrete floors

If you look after a building such as Portobello High School, floor and threshold joints in busy corridors wear quickly and are best resealed early.

What your quote should include

  • When the joint can take water or movement
  • How hidden problems are handled
  • How long the guarantee is
  • Which colour the sealant will be

Our hiring checklist

Why it’s worth doing now in Mountcastle

The right product depends on the floor and the traffic: skirting and tiled floors need flexibility, wet areas need water resistance and concrete needs a product suited to wheels. Using the wrong one is why many floor joints fail. Private landlords in Mountcastle must meet the Repairing Standard, and damp or leaks can fall short of it, so it’s worth fixing failed sealant before a tenant reports it.

Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.

What you get with us

  • You choose the colour before work begins
  • 4.9 on Google from 180+ five-star reviews
  • Any old sealant cut out fully, not covered over
  • Anti-fungal silicone where joints get wet

Read what affects the cost and what customers say.

What floor joint sealing looks like in Mountcastle

Across Edinburgh, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and they don’t all move the same way. The joint at the skirting or threshold has to allow for that. Many new homes in Scotland are timber-framed, and as the frame dries and settles, skirting and sealant joints can open up.

For buildings such as Willowbrae Parish Church, floor and skirting joints in halls and kitchens wear like any others. Rented homes near Brunstane station change hands often, and open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Mountcastle is about 3 miles east of Edinburgh, in Edinburgh. From the centre of Mountcastle to the outskirts, we cover floor joint sealing for every kind of property, from flats and houses to offices and hotels. Mountcastle is one of 175 places in Edinburgh where we work for floor joint sealing.

Jobs for floor joint sealing in EH15, EH8 and EH7 works the same way as everywhere else we cover. Streets in the area include Goff Avenue, Bryce Avenue and Durham Avenue, all of which we cover. Mountcastle is on the A1 and A1140, which makes it straightforward to reach. Other places close to Mountcastle include Northfield (1 mile south-west), Craigentinny (1 mile north), Piershill (1 mile north-west), South Portobello (1 mile east) and Willowbrae (1 mile west). Further out, we also cover Edinburgh (3 miles west), Silvermills (3 miles west), West End (3 miles west), Stockbridge (3 miles west), Canonmills (3 miles west) and West Coates (4 miles west).

Landmarks near Mountcastle

Around Mountcastle, our work takes us to homes and buildings near Public House, Abercorn Park and Duddingston Kirk, among other places. The closest station to Mountcastle is Brunstane station, about 1.4 miles south-east of the centre. A little further out are Cameron Toll Shopping Centre (2.1 miles south-west) and Hibernian Football Club Museum (1.5 miles north-west). For a walk, there’s Whinny Hill and The New Leaf Co-op.

Map of Mountcastle © OpenStreetMap contributors

When it is not the sealant

We’ll always be straight with you, so here’s what sealant can’t fix:

  • Structural movement or subsidence
  • Cracked or broken concrete slabs
  • Leaks from a failed tanking system

If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.

What we seal

  • Thresholds
  • Tiled floors
  • Wet room & bathroom floors
  • Commercial floors
  • Concrete floor joints
  • Skirting boards

Landlords, agents and businesses in Mountcastle

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job