The Mastic Doctor team standing beside their branded vans outside an office building
Dumfries and Galloway · Scotland

Facade and window perimeter sealing in Lockerbie, Dumfries and Galloway

Facade joint and window perimeter sealing on commercial buildings across Lockerbie, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Cladding panel joints that have opened up
  • Discoloured or dirty facade joints
  • Sealant pulling away from frames or panels
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Facade sealing across Lockerbie

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

What happens if it’s left?

Failed joints let in more than water: occupants notice draughts and cold spots around windows. Resealing deals with the draught as well as the leak. Exposed buildings in Scotland take a lot of weather, and for a smaller place like Lockerbie, a repair visit takes planning, so it’s better to act early.

We don’t publish prices, since every building and every scope is different. Call for a quote.

Why us?

  • Clear, fixed quotes
  • Workmanship guaranteed for 12 months
  • Colour agreed before work starts
  • Failed material removed, not covered up

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

About our facade sealing in Lockerbie

We seal window and door perimeters, cladding panel joints, external facade joints and perimeter joints where frames meet the structure. Where sealant is the specified fix, we also take on coping and flashing joints. If you have gaps between rainscreen or cladding panels and discoloured or dirty facade joints, we can put it right, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, in Lockerbie it comes down to the same thing: the right product in a properly prepared joint.

For a site around Lockerbie, we plan the mastic in as few trips as the programme allows. Send drawings, photos and the programme so everything needed arrives on the first day.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Lockerbie (DG11)
Region
Dumfries and Galloway
Cover
12 months on every job
Price
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026

What the job involves on each surface

Brick and stone facades

Joints in natural stone need care to avoid staining. We use a product suitable for the stone where the specification names one, and mask the edges carefully.

Perimeter joints at frames and structure

Where framed systems such as shopfronts meet the building structure, there is a perimeter joint to seal. We seal those perimeter joints.

When it isn’t the sealant

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Replacing glass or failed glazing units
  • Joints whose design needs changing by the specifier
  • Leaks from roofs, gutters or failed flashings rather than sealant joints

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we will tell you honestly before you book.

What we seal

  • Shopfront frames
  • Perimeter joints where frames meet the structure
  • Stone and brick facade joints
  • Cladding panel joints
  • Coping and flashing joints
  • Window and door perimeters

Diagnose, treat, sign off

Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Jobs near Lockerbie are often grouped with others in the same area, to make the most of each trip. Tell us how flexible your dates are.

  1. First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. The old bead is cut away completely, not overlaid.
  3. Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
  4. Closed-cell rod fixes the depth, and the sealant grips two sides only.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. The completed runs are checked with you, then the 12-month guarantee applies.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Confirm the product named in the specification
  • Arrange parking or a loading space

Request a quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. For smaller jobs, photographs and a description will do.

Get a price

Related advice

General trades versus a specialist

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.

Common questions from Lockerbie clients

Will you fit the mastic around our build programme in Lockerbie?

Yes. The mastic is planned around your key stages. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Do you take on work at healthcare sites like Lochmaben Hospital?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Is the work guaranteed?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

Do you take on small jobs?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

What will the job cost?

That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.

Do you cover Lockerbie?

Yes. We cover Lockerbie. For a quote, call the office on 01277 525 020 or email drawings and photos.

What hours do you work?

The office is staffed Monday to Friday, from 8am until 5pm. Tell us your site hours and access windows and the work will be fitted around them.

Facade sealing around Lockerbie: points for this area

Lockerbie is in the east of Scotland, which is drier than the west. Frost and condensation on frames and panels can still hold up external mastic on winter mornings. External dates keep a little give. The area within 2 miles of Lockerbie holds several hotels. When hotels extend or refit, the work is typically squeezed between peak periods, mastic included.

Hotel extensions and refits, at places such as Kings Arms Hotel, less than half a mile north of Lockerbie, normally run between busy periods, so the sealing is squeezed into short windows. New wings at hospitals like Lochmaben Hospital, 3.9 miles west of Lockerbie, bring long runs of window and panel joints to seal.

Lockerbie is about 11 miles east of Dumfries, in Dumfries and Galloway. Businesses, contractors and managing agents in Lockerbie can call on us for facade joints. Our Dumfries and Galloway coverage takes in 139 places. Sites around Edinburgh have their own page, about 57 miles away.

Business premises anywhere in DG11 are within our area. For a building on High Street, Station Road and Goods Station Road or nearby, send details and we will quote for facade joints. Being close to the A709 and B723, Lockerbie is easy to get to with materials and equipment. Sites close to Lockerbie are covered too, including Halleaths (2 miles west), Hightae (3 miles south-west), Lochmaben (3 miles west), Templand (4 miles north-west) and Corrie Common (5 miles north-east). A short drive away, we cover Dumfries (11 miles west), Annan (10 miles south-east), Moffat (15 miles north), Heathhall (9 miles west), Langholm (14 miles east) and Newbridge Drive (11 miles west). Lockerbie ranks among the main centres of Dumfries and Galloway, with offices, shops, schools and other public and commercial buildings.

Landmarks near Lockerbie

Recent enquiries here include premises near Library, among other places. There’s a railway station in Lockerbie itself: Lockerbie station. A little further out are Lochmaben Castle (2.9 miles west) and Lochmaben Hospital (3.9 miles west). Green spaces nearby include Castle Loch.

Map of Lockerbie © OpenStreetMap contributors

Signs you need facade sealing in Lockerbie

Sun, rain and temperature swings wear facade sealant down over the years. UV and weather harden the sealant until it can’t stretch with the building.

Look out for the following:

  • Sealant pulling away from frames or panels
  • Previous reseals run over old sealant
  • Discoloured or dirty facade joints
  • Water coming in around window frames

When a school such as Lockerbie Academy is extended or refurbished, the mastic package is often squeezed into the holidays.

Comparing quotes

  • How they’ll work around occupants
  • How joint depth will be controlled
  • Who will actually carry out the work
  • The named product and why it was chosen

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.