Scottish Borders · Scotland

Window & door mastic in Wilton Dean, Scottish Borders

Window and door frames in Wilton Dean need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.

  • Old mastic that has gone black or come away
  • Leaking joints at the ends of sills
  • Cold air getting in at the frame edge

Window mastic in Wilton Dean

How the visit works

When we arrive, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Outside jobs in Wilton Dean need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors is not affected.

  1. We check how each frame can be reached safely.
  2. Old, cracked mastic is removed completely, along with any loose debris.
  3. Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
  4. Deep voids are backed, then the sealant is gunned in.
  5. The joint is shaped to shed water and the area tidied.

Before we arrive

  • Let us know about earlier repairs to the joints
  • Let us know about stairs, lifts or work at height
  • Mention any sign-in or site rules at work premises

How to get a quote

Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we will come back to you with a quote.

Get a price

Related advice

Window mastic in Wilton Dean, done properly

Around Wilton Dean we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on patio & French doors, uPVC windows and composite doors, and the jobs we see most are rain getting in at the frame or under the sill and a bead that doesn’t match the frame.

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.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Applicator reaching up to seal an external door frame on a sunny day
Place
Wilton Dean (TD9)
Wider area
Scottish Borders
Cover
One year on every job
Quote
A clear quote up front
Email
info@mrmastic.co.uk
Page updated
26 October 2026

What affects the quote in Wilton Dean

We quote each job individually. This is what makes a difference:

  • How many areas need sealing
  • Whether the work is at height
  • When we can work, for business premises
  • Any mould that needs treating

Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.

Helping us quote

To help us quote quickly, please include:

  • How many joints, rooms or windows are involved
  • If it’s domestic, commercial or a hotel
  • The address or postcode of the job
  • How we’d reach the joints

Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, send an email to info@mrmastic.co.uk.

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Repaint timber before it’s bare
  • Don’t use solvent cleaners on the joint
  • Keep jet washers away from the mastic
  • Make sure the drainage slots are not blocked

Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.

Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.

Should I try it myself first?

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.

Window mastic in Wilton Dean: local notes

Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Historic houses like Harden (about 2.6 miles west) are a reminder that the area around Wilton Dean has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

In the older streets around Old Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Wilton Dean is about 1 mile west of Hawick, in the Scottish Borders. Every kind of property in Wilton Dean is covered for window mastic. The work is guaranteed for a year. Wilton Dean is one of 89 places in the Scottish Borders we cover. Edinburgh is on our list too, around 39 miles away.

Jobs for window mastic in TD9 works the same way as everywhere else we cover. Local streets include Dean Road, Overhall Road and Buccleuch Road, all of which we cover. Neighbouring places we cover for window mastic include Wilton (1 mile east), Hawick (1 mile east), Stirches (1 mile north-east), Burnfoot (2 miles north-east) and Newmill (4 miles south-west). Within a short drive, we also cover Galashiels (13 miles north), Selkirk (9 miles north), Jedburgh (11 miles east), Melrose (12 miles north), Langlee (13 miles north) and St Boswells (12 miles north-east).

Around Wilton Dean

Locally, jobs take us to homes and businesses close to The Bourtree pub. Well-known places in the area include Borders Textile Towerhouse (0.7 miles east) and Branxholme Castle (2.5 miles south-west). The countryside around Wilton Dean includes Williestruther Loch and Ashkirk Hill.

Map of Wilton Dean © OpenStreetMap contributors

For landlords and businesses

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we 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 12-month guarantee.

Common questions in Wilton Dean

Is Wilton Dean within the area you cover?

Yes, Wilton Dean is covered. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.

Can you do window mastic in Wilton Dean?

Yes, Wilton Dean is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.

Can you seal the gap between the frame and the plaster indoors?

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

How long before the joint can be used?

Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.

How do I get a quote for window mastic in Wilton Dean?

We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Will the old sealant be removed?

Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

Is the new sealant paintable?

Silicone generally won’t take paint. Let us know beforehand, and we’ll use a paintable product where it suits.

Can you work on commercial sites?

Yes. We can plan bigger jobs in stages to suit the site.

When something else is needed

To be straight with you, some problems need a different trade:

  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • A frame that has rotted at the joint
  • Faulty window hardware

If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.

Surfaces we seal

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

Do you need window mastic in Wilton Dean?

Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.

Look out for these signs:

  • Water coming in at the bottom corners of a door
  • Sealant in the wrong colour for the frame
  • Whistling draughts around closed windows
  • Old mastic that has gone black or come away

For site and facilities teams at buildings such as Hawick High School, larger buildings have plenty of frames, and the mastic around each one ages.

Questions to ask before booking

  • What the cure time is
  • Which sealant they’ll use, and why
  • How long the guarantee is
  • Whether VAT is included

10 questions to ask before you book

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job