Na h-Eileanan Siar · Scotland
Back Floor Joint Sealing
Floor joint sealing for Back, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Threshold joints that have opened or worn
- Rigid edge joints in tiled floors
- Caulk that has cracked where the floor moves
What the job involves on each surface
Skirting boards
On painted skirting, we can use a flexible sealant that takes paint. In wet rooms and kitchens, silicone is usually better.
Wet room and bathroom floors
Mop water gets into any open joint at the edge of a bathroom floor. A neat silicone joint keeps it out.
About our floor joint sealing in Back
Large tiled floors, and those over underfloor heating, often need movement joints. We can turn a line of grout into a movement joint by replacing it with flexible sealant coloured to suit the grout. We work on commercial floors, tiled floors and concrete floor joints, and people most often call us about cracked grout where a tiled floor needs a movement joint and gaps between floors and kitchen plinths.
Work in a place like Back is planned ahead, journey included. Inside work goes ahead in any weather; outside mastic needs a dry day.
Each job carries a 12-month guarantee, large or small.
- Location
- Back (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, 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.
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.
Back questions
Can you do floor joint sealing in Back?
Yes, Back is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Will you come out to Back?
Yes, Back is covered. Our work covers the whole of Scotland, islands included, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is usually more efficient.
Do you seal kitchen plinths to the floor?
Yes. We cut out any old sealant or caulk and reseal with flexible silicone.
My floor grout keeps cracking in a line. Can you help?
Often, yes. A crack along a grout line often means the floor needs room to move. We rake out that line and seal it with flexible sealant.
Is there a guarantee?
Yes, always. There’s a 12-month guarantee on every job.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
What sealant work cannot fix
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Failed waterproofing under a wet room floor
- Damaged concrete that needs breaking out and repairing
- Movement too big for a sealant joint
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Surfaces we seal
- Commercial floors
- Skirting boards
- Tiled floors
- Thresholds
- Concrete floor joints
- Wet room & bathroom floors
What affects the quote in Back
You will get a clear quote before we start. It takes into account:
- Mould in or behind the old joints
- The number of rooms or windows
- The type of sealant required
- Whether old sealant or filler has to be cut out
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
Asking for a quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- Any access issues, like height or stairs
- If someone has resealed it before
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
What we do, step by step
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes a morning or an afternoon for most homes in most cases. Around Back, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We start by checking the floor, the joint and what traffic it takes.
- Any old caulk, grout or sealant is raked or cut out.
- The joint is vacuumed clean and backing fitted where needed.
- We apply the sealant in a colour that suits the floor.
- We tool it neatly and tell you when it can be walked on and cleaned.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
- Tell us if parking is tricky
Getting a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Read more
New homes and floors in Back
Work on the islands has to be planned around ferry crossings and the weather, so give us as much notice as you can. Timber frame is common in newer Scottish homes, and as the frame dries and settles, skirting and sealant joints can open up.
Around Back, as everywhere, floor joint sealing is only as good as the preparation behind it.
Back is about 6 miles north-east of Stornoway, in Na h-Eileanan Siar. Jobs in Back get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Na h-Eileanan Siar, we cover 87 places, and Back is one of them.
Our applicators cover all of HS2 for floor joint sealing and the streets around it. If you need floor joint sealing at a property on Broadbay View, Rathad na Sgoile and Sraid na H-Eaglaise or anywhere close by, we can help. We also cover Sulaisiadar (5 miles south-east), Garrabost (5 miles south-east), Na h-Eileanan an Iar (5 miles south), Knock (5 miles south) and Aiginis (5 miles south). If you’re somewhere remote, a little more planning is needed.
Landmarks near Back
Nearby you’ll also find Western Isles Hospital (5.4 miles south-west). Open spaces near Back include Loch Langavat.
Do you need floor joint sealing in Back?
Floors and walls move a little with the seasons. In winter, with the heating on, timber dries and gaps open, then close again in damper months.
Common reasons people contact us are:
- Failed joint filler in concrete floors
- Open gaps along the bottom of skirting boards
- Worn sealant at door thresholds
- Floor edges that trap water and grime
Whether the job is in Back itself or nearby, the right material for each joint matters as much as a neat finish.
What your quote should include
- What preparation is included
- When the joint can take water or movement
- Whether they seal over old material or remove it
- Are they insured?