Dumfries and Galloway · Scotland
Window & door mastic in New Galloway, Dumfries and Galloway
Window and door frames in New Galloway need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Whistling draughts around closed windows
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
How the visit works
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours for a handful of frames, longer for a whole house, including the tidy-up. Outside jobs in New Galloway 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 isn’t affected.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Before we arrive
- Let us know about parking restrictions
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
For window mastic in New Galloway, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Advice
Window mastic for homes and businesses in New Galloway
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. We work on patio & French doors, uPVC windows and composite doors, and the jobs we see most are whistling draughts around closed windows and cracked or shrunken mastic around 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- New Galloway (DG7)
- Region
- Dumfries and Galloway
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Windows and doors in New Galloway
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. New Galloway is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around window and door frames to keep out.
For jobs in and around New Galloway, choosing the right material for each joint is as important as a tidy finish.
New Galloway is about 21 miles west of Dumfries, in Dumfries and Galloway. Jobs in New Galloway get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. New Galloway is one of 138 towns and villages in Dumfries and Galloway we cover. You can also see our page for Glasgow, about 54 miles away.
We cover every part of DG7 for window mastic. Whether your property is on High Street, Kirk Road and Old Edinburgh Road or a nearby road, our applicators can take on the job. New Galloway is on the A712 and A762, which makes it straightforward to reach. If you are just outside New Galloway, we cover St John's Town of Dalry (2 miles north), Crossmichael (9 miles south-east), Glenlochar (10 miles south-east), Moniaive (12 miles north-east) and Castle Douglas (12 miles south-east). Larger places within reach include Gatehouse of Fleet (13 miles south), Creetown (15 miles south-west) and Minnigaff (15 miles south-west).
Near you in New Galloway
Other landmarks nearby include Kenmure Castle (0.8 miles south). For a walk, there’s Little Kenmure Loch.
Looking after it afterwards
Looking after new joints is easy:
- Keep paint and stain on wooden frames in good order
- Don’t aim a pressure washer at the joints
- Wipe condensation off the frames
- Keep paint off silicone joints
Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Common problems we fix in New Galloway
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Keep an eye out for these signs:
- Cracked or shrunken mastic around the frame
- Untidy mastic left by window fitters
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
In and around New Galloway, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
- How hidden problems are handled
- Whether VAT is included
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
What the job involves on each surface
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall and tooled smooth.
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Places near New Galloway
More services for New Galloway
Why act early in New Galloway
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Quality sealants from Arbo and Everbuild
- Full insurance on every job
- Approved under the ARBOMaster scheme
Take a look at how sealant jobs are priced and our reviews.
New Galloway: your questions answered
What guarantee comes with window mastic in New Galloway?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is New Galloway within the area you cover?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
I’m a tenant. Can you help?
We are happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
How long before the joint can be used?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
Do you work for landlords and businesses?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels across Dumfries and Galloway.
Can you get sealant to suit coloured frames?
Normally, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
What do you need from me for a quote?
A short description and the location. We’ll ask anything else we need to know.
Are you fully insured?
Yes. We are fully insured.
How we quote for window mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Whether old sealant or filler has to be cut out
- The type of sealant required
- Access and height
- The size of the job
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins.
What to tell us for a quote
When you call or email, it’s useful to know:
- How many joints, rooms or windows are involved
- If someone has resealed it before
- Any access issues, like height or stairs
- What’s wrong with the joints now
Want a quote for window mastic? Please drop us a line at info@mrmastic.co.uk with a few details. We will explain what we’d do and give you a clear price before work begins.