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

Leith construction mastic

Mastic packages for new-build and refurbishment projects across Leith, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Old sealant on a refurbishment that needs stripping before new work
  • Internal caulk splitting as the building dries out
  • Oversized or tapered gaps around new frames
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Construction mastic in Leith

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

When something else is needed

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:

  • Rework caused by others damaging completed areas
  • Specifying the product where the designer hasn’t
  • Deciding which fire-stopping product a penetration needs

If you are not sure, just phone 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.

Surfaces we seal

  • Window and door perimeters
  • Brick and block movement joints
  • Internal decorators’ caulk
  • Floor and skirting junctions
  • Cladding and panel joints
  • Sanitary and kitchen joints

Construction mastic for commercial buildings in Leith

Mastic is often where a new building first shows its quality to the client. Untidy or missed joints are among the commonest snag items. We seal so the snag list stays short. We work on window and door perimeters, internal decorators’ caulk and brick and block movement joints, and what we are called in for most is caulk cracking where joints are moving more than expected and new external sealant already peeling away. Whether you call it commercial sealant work, mastic application or joint sealing, in Leith it comes down to the same thing: the right product in a properly prepared joint.

Sites in Scottish city centres tend to be hemmed in, with deliveries and storage to plan. We work to the programme and the site rules, with CSCS-carded applicators.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Location
Leith (EH6, EH5, EH1)
Region
Edinburgh
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Do you need construction mastic in Leith?

Three-sided adhesion is a frequent fault on new work. Bonded to the base of the joint and both sides, sealant can’t stretch evenly.

Typical triggers for a call:

  • Bath and shower joints scraped during the final clean
  • Oversized or tapered gaps around new frames
  • Frame perimeters left unsealed or poorly sealed
  • Old sealant on a refurbishment that needs stripping before new work

Projects at colleges like Royal College of General Practitioners Edinburgh (2.1 miles south-west of Leith) tend to run to term dates, so the mastic is planned tightly.

Before you book anyone

  • Health and safety accreditation such as CHAS
  • How they handle RAMS and site documents
  • Can the work be phased to keep areas open?
  • Will failed sealant be removed rather than covered?

Choosing a commercial sealant contractor

Keeping the joints sound

Once the work is signed off, these steps help:

  • Put any product change through the designer first
  • Brief the final clean team to avoid blades near sealant
  • Brief following trades on areas that have been sealed
  • Ask installers to correct oversized gaps first

At handover, keep the product details with the O&M information. That helps the building owner maintain the joints later. We can confirm the handover information you need when we quote.

One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating, and a delay to handover. A check of every frame before decorators start is worth the time.

Construction mastic in Leith: the local picture

The sea is no more than about 1 mile from Leith. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, and the sealant, primer and backing need choosing with that in mind. The east of Scotland, where Leith is, gets less rain than the west. Cold, damp starts still stop external sealing on some days. External dates keep a little give.

New units and refits on sites such as Tower Street Industrial Estate (less than half a mile south-east of Leith) need their panel and perimeter joints sealed to the specification. Work at a hotel such as Abbot's House Hotel (0.5 miles south-east of Leith) tends to be programmed around bookings, mastic included.

Leith is about 3 miles north-east of Edinburgh, in Edinburgh. Looking for construction mastic in Leith? We can help, as we do across Edinburgh. Leith is one of 174 places in Edinburgh on our list for mastic packages.

Postcode districts covered here: EH6, EH5 and EH1. We cover commercial and managed buildings on Fyfe Lane, Haig Lane and Mill Lane and the roads nearby. Nearby places we also cover include Timber Bush (1 mile south), North Leith (1 mile south-west), Bonnington (1 mile south-west), Newhaven (1 mile west) and Victoria Park (1 mile west) for mastic packages. Nearby towns on our patch include Edinburgh (3 miles south-west), West End (3 miles south-west), West Coates (3 miles south-west), Sciennes (3 miles south), Merchiston (3 miles south-west) and Newington (3 miles south). Leith is one of the busier places in Edinburgh, and we take on mastic packages for its commercial and public buildings.

Around Leith

Recent enquiries here include premises near Leith Academy, McDonald Road Library and Taylor Gardens. For rail, the closest station is Edinburgh Waverley station, roughly 2.1 miles south of the centre. Other landmarks nearby include Ocean Terminal (under half a mile west) and Edinburgh Castle (2.5 miles south-west). Not far away are The New Leaf Co-op and Whinny Hill.

Map of Leith © OpenStreetMap contributors

Diagnose, treat, sign off

Tell us your site hours and access windows and we will plan around them. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Work on a big city site in Scotland typically involves inductions and permits. Tell us the rules and we will work to them.

  1. First we look at the scope on site or from drawings.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. Final snagging is completed and the 12-month guarantee applies.

Before we start on site

  • Let building users know which areas are affected
  • Explain the parking and delivery arrangements
  • Tell us what induction or permit system the site runs

Request a quote

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or speak to us on 01277 525 020 or email the details over to discuss it first.

Get a price

Read more

Why act early in Leith

Clearing snags piecemeal is tempting when handover is close. A planned sweep of each plot or floor catches the lot in one go and saves applicators coming back again and again. We can run snagging as its own phase before handover. Getting access arranged for a building in Leith takes time, so it makes sense to renew every failing joint while it’s in place.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why appoint us

  • Colours confirmed for the specified product
  • Coloured sealants to suit the setting, where available
  • CSCS-carded applicators
  • Colours chosen to suit frames, cladding or finishes where possible

See what affects the cost and how we’re accredited.

Your questions answered

Would you work within a site like Western General Hospital (Edinburgh)?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

Does a coastal location like Leith affect which sealant is used?

It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

How do you work with the site programme?

We follow the trades through the building. Each plot, floor or elevation is sealed when it’s ready.

What does a mastic package typically include?

External perimeters and movement joints, internal caulking where specified, sanitary and kitchen joints, plus snagging.

How long before the joints can be used?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Do you have public liability insurance?

Yes. We are fully insured, and the certificate can go with your quote.

Can you clear a mastic snag list before handover?

Yes. Damaged, missed or untidy joints are stripped and done again properly, working to your handover date.

Work for main contractors and building owners

Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.