The Mastic Doctor team standing beside their branded vans outside an office building
Scottish Borders · Scotland

Expansion and movement joint sealing in Stow, Scottish Borders

Sealant work in Stow for main contractors, managing agents and facilities managers: expansion and movement joint sealing in walls, decks and floors, with a fixed quote first.

  • Torn sealant in brick or block movement joints
  • Chipped joint edges on forklift routes
  • Hardened, cracked sealant on exposed facades
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Expansion joint sealing across Stow

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Maintenance after handover

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:

  • Clear dirt from joint lines during routine cleaning
  • Inspect exposed joints once the cold weather has passed
  • Inspect movement joints alongside other routine building checks
  • Leave barriers in place until fresh joint sealant has cured

Grit is the slow enemy of a joint seal. Grit trodden or driven into the joint works at the surface until it tears and decks and floors suffer most. A routine sweep is the simplest protection.

A failed deck joint lets water straight through to the level below. Salty water dripping through stains soffits and lands on parked vehicles and it can affect the structure over time. Sealing the joint promptly stops it at source.

How we handle expansion joint sealing in Stow

Long runs of brick or block have movement joints built in. Failed sealant here lets rain into the wall and can leave the joint full of debris. The old seal is cut away, backing rod goes in at depth, and a low-modulus masonry sealant is gunned and tooled, primed where the manufacturer specifies. We work on blockwork control joints, car park decks and ramps and precast concrete panel joints, and the failures we are asked to look at most are expansion joints filled with dirt and stones and car park joints leaking onto vehicles below. A specialist sealant contractor works differently from a general builder: in Stow, that means joint design, primers and backing rod as standard.

Around smaller Scottish places like Stow, slabs needing attention are often in agricultural buildings, workshops, schools and hotels. Concrete slabs and yards there take vehicles and weather.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Stow (TD1)
Region
Scottish Borders
Guarantee
A 12-month guarantee
Price
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026

Expansion joint sealing in Stow: the local picture

Stow is in the east of Scotland, which is drier than the west. Frost and de-icing salt still find their way into open external joints. Resealing before the cold months helps protect the edges.

Around Stow, each joint gets a filler or sealant matched to what crosses it and how much it moves. A joint near Stow that has lost its sealant lets in water and grit, and the edges suffer next; we’ll tell you if the edges need repairing first.

Stow is about 6 miles north of Galashiels, in the Scottish Borders. If you are looking for expansion joint sealing in Stow, we can help, as we do across the Scottish Borders. 91 places across the Scottish Borders fall within our area, Stow among them. For work in that direction, see our Edinburgh page.

Anyone looking for expansion joint sealing in TD1 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Station Road, Townfoot and Galashiels Road or nearby, we can quote for movement joints. Close to Stow, our area also takes in Killochyett (1 mile north-west), Fountainhall (3 miles north-west), Lauder (5 miles north-east), Clovenfords (5 miles south) and Nether Blainslie (5 miles east). A short drive away, we cover Peebles (13 miles west), Selkirk (10 miles south), Innerleithen (9 miles south-west), Melrose (8 miles south-east), Earlston (8 miles south-east) and Langlee (6 miles south-east).

What’s near Stow

There’s a railway station in Stow itself: Stow station.

Map of Stow © OpenStreetMap contributors

Should maintenance staff do it?

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

What the job involves on each surface

Car park decks and ramps

Failed deck joints often show as leaks on the level below. We strip the old seal, prepare the edges and seal again, and we will tell you if any edges need repairing first.

Concrete and precast panel joints

Precast panels often have surface residues that sealant won’t bond to. We prepare the faces thoroughly and prime where the maker calls for it.

How a job runs

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Where we can, we combine work around Stow with other jobs nearby, to make the most of each trip. Tell us how flexible your dates are.

  1. We assess the joints on site or from photos, noting widths and how each has failed.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Phasing is agreed so decks, floors or entrances can stay in use where needed.
  4. We strip the old sealant or filler and prepare each face until it’s sound and dry.
  5. Backing rod or bond-breaker sets the depth, primer goes on where specified, and the sealant is applied and tooled.
  6. We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.

Preparing the site

  • Tell us your opening times and when work is allowed
  • Confirm the product named in the specification
  • Point out any areas we must not close

Getting a fixed quote

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or send photos by email.

Get a quick quote

Related advice

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Proprietary pre-formed expansion joint systems
  • Joints too narrow for the movement, which need redesigning by the engineer
  • Broken or spalled joint edges, which need repairing before any sealant goes in

If you’re not sure, just call the office on 01277 525 020 or use the quote form and we’ll give you a straight answer.

What we seal

  • Podiums and floor movement joints
  • Brickwork movement joints
  • Car park decks and ramps
  • Cladding panel joints
  • Blockwork control joints
  • Precast concrete panel joints

Common questions from Stow clients

Does a site in Stow have to shut while its joints are sealed?

In the majority of cases the site keeps working. Joints are done in phases, a bay, aisle or deck at a time. The phasing plan comes with the quote.

Is a smaller place like Stow outside your area?

Not at all: smaller places are covered as well as towns. Our area covers all of Scotland, cities, towns and islands alike. Where we can, we group nearby jobs to make the most of each trip.

What’s the difference between an expansion joint and a movement joint?

It’s a deliberate gap that lets the structure move without cracking. Expansion joint is a name often used for the same thing, and either way it needs a sound seal.

How do you deal with asbestos in old sealant?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.

Do you guarantee expansion joint work?

The workmanship is guaranteed for 12 months from sign-off. Keeping joints clear of debris helps them last.

Is colour matching possible?

It depends on the product. Some ranges are wide, others limited, so we’ll confirm the colours available for the specified product with the quote.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.

For managing agents and facilities managers

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Stow can form part of a wider programme across the Scottish Borders.

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

Accreditations

Trusted. Accredited. Insured.