Dumfries and Galloway · Scotland

Window & door mastic in Canonbie, Dumfries and Galloway

Mastic around window and door frames, sills and patio doors for homes and businesses in Canonbie and across Dumfries and Galloway. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Rain getting in at the frame or under the sill
  • Sealant in the wrong colour for the frame
  • Black, perished sealant on frames

Need window mastic in Canonbie?

When it isn’t the sealant

Some problems need a builder, plumber or other trade rather than us:

  • Worn gaskets, brush seals or a door that has dropped
  • Condensation trapped between the panes
  • Damp coming through the wall itself rather than the frame joint

If in doubt, email us at info@mrmastic.co.uk and we will say what we think.

Surfaces we seal

  • Aluminium frames
  • Window sills
  • Timber windows & doors
  • Composite doors
  • Patio & French doors
  • uPVC windows

Window mastic for homes and businesses in Canonbie

Around Canonbie we seal all kinds of frames: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on composite doors, window sills and timber windows & doors, and the jobs we see most are damp patches on the reveal after heavy rain and cold air getting in at the frame edge.

Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.

Your job is guaranteed for a year, as with all our work.

Location
Canonbie (DG14)
Wider area
Dumfries and Galloway
Cover
12 months on all our work
Quote
A clear price before work begins
Email
info@mrmastic.co.uk
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Landlords, agents and businesses in Canonbie

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.

What affects the cost of window mastic

Jobs vary more than people expect. The main factors:

  • Working hours on commercial sites
  • The number and length of the joints
  • Whether old sealant or filler has to be cut out
  • How easy the joints are to reach

There are no prices on our website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.

What we need to know

To help us quote quickly, let us know:

  • Where the job is, and your postcode
  • The type of property
  • Any access issues, like height or stairs
  • Roughly how big the job is

Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before we start.

Canonbie: your questions answered

Do you cover Canonbie for window mastic?

Yes, Canonbie is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we will send you a clear quote.

Is Canonbie within the area you cover?

Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Do you take out the old sealant first?

Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

Can new window sealant be painted?

Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.

Can tenants book the work?

We can work for tenants, landlords or agents. Get your landlord’s agreement first.

What does window mastic cost?

We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.

Do you seal inside as well as outside?

Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.

Do you guarantee window mastic?

Yes. All our work carries a 12-month guarantee, and we’re fully insured.

What we do, step by step

There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of frames, longer for a whole house in most cases. Around Canonbie, distance and access matter more than parking. Tell us how to find the property and how to reach the work.

  1. We check how each frame can be reached safely.
  2. Old, cracked mastic is removed completely.
  3. The surfaces are cleaned and left dry.
  4. Deep voids are backed, then the sealant is gunned in.
  5. The joint is shaped to shed water and the area tidied.

Getting ready for the visit

  • Mention any parking rules near the property
  • Tell us about any water getting in
  • Clear items away from the joints we’re working on

Get a quote

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.

Get a price

Advice

Can I do it myself?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

Why act early in Canonbie

A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Around Canonbie, water from a failed joint in an older stone home can soak into timber and plaster.

What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.

What you get with us

  • An ARBOMaster approved applicator
  • Every job guaranteed for a year
  • Sealant colour chosen to suit
  • We leave the area clean and tidy

See our cost guide and our reviews.

Signs you need window mastic in Canonbie

Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.

Most people get in touch when they notice something like this:

  • Gaps between the frame and the inside reveal
  • Leaking joints at the ends of sills
  • A bead that does not match the frame
  • Mastic that has split away from the wall

In and around Canonbie, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.

Comparing quotes

  • How the colour is chosen
  • What product goes in the joint
  • Who does the work, and how experienced they are
  • What happens if they find a problem under the old sealant

How to choose a mastic man

Canonbie homes and the weather

Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.

Homes close to Canonbie Parish Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Canonbie is in Dumfries and Galloway. Every kind of property in Canonbie can book us for window mastic. Every job comes with our one-year guarantee. Canonbie is one of 138 towns and villages in Dumfries and Galloway where we work for window mastic. We also work in Edinburgh, around 61 miles away.

Every address in DG14 is covered for window mastic, from the main roads to the quietest streets. You’ll find streets such as Prior Avenue, Aldery Terrace and Forgeholm, all of which we cover. If you are just outside Canonbie, we cover Langholm (5 miles north), Springfield (7 miles south-west) and Gretna Green (7 miles south-west). Further out, we also cover Annan (13 miles south-west), Gretna (7 miles south-west), Eastriggs (11 miles south-west) and Ecclefechan (12 miles west).

What’s near Canonbie

Well-known places in the area include Auchenrivock Tower (2.8 miles north-west) and Thomas Hope Hospital (5.3 miles north). Green spaces nearby include Bloch Hill.

Map of Canonbie © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job