Hampshire · England
Window & door mastic in Martin, Hampshire
Specialist window mastic for Martin: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Water coming in at the bottom corners of a door
- Mastic that has split away from the wall
- Gaps where the sill meets the wall
Window mastic for homes and businesses in Martin
There are two joints on most windows. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. If you have draughts coming in around windows and doors and gaps where the sill meets the wall, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Martin is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
You are covered for a year from the day we finish. If anything isn’t right with it, phone 0345 464 0079 or send us an email.

- Where
- Martin (SP6)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Martin
Do you cover smaller places like Martin?
Yes. Martin is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Martin for window mastic?
Yes. Our work covers London and the South East, and Martin is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Is it OK to seal over old sealant?
No, it will not last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Is the new sealant paintable?
That depends on the product. Silicone isn’t paintable, but some hybrid sealants are. Mention any painting plans before we start.
Can you do the inside joint as well?
Yes. Indoors, we seal between the frame and the plaster or reveal.
Can you match the sealant to my frames?
Yes, in most cases. Mention the frame colour when you ask for a quote and we’ll use the nearest match.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
How long will my window job take?
A handful of frames is a short visit. We confirm the timing with your quote.
What window mastic looks like in Martin
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Martin is in Hampshire. Whether you’re in the middle of Martin or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. For nearby work, see our Southampton page, about 23 miles away.
Jobs for window mastic in SP6 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Townsend Lane and Downview Road. We also cover the places around Martin: New Forest (1 mile south-west), Rockbourne (3 miles east) and Damerham (3 miles south-east). Within a short drive, we also cover Ringwood (11 miles south-east), Fordingbridge (6 miles south-east), St Leonards (11 miles south), Alderholt (6 miles south-east), Poulner (11 miles south-east) and Ashley Heath (10 miles south).
Local landmarks in Martin
Well-known places in the area include Cranborne Castle Hill (4.5 miles south). Open spaces near Martin include Western Downs.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Use gentle cleaners on frames and sealant
- Keep solvents and bleach off the sealant
- Clear any debris from frame drain holes
- Keep timber frames painted
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Leaks normally 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.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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, then guaranteed for a year.
How it works
Before we leave, we go over the finished joints with you. The visit itself usually takes a morning for a couple of windows and a door, depending on the size of the job. In a small place like Martin, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- For indoor joints, keep the area dry beforehand if you can
Get a quote
For window mastic in Martin, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Related advice
Places near Martin
What else we do in Martin
When to call us in Martin
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
Common reasons people contact us are:
- Gaps where the sill meets the wall
- Hard, cracked sealant around windows
- Rushed sealant from a window installation
- Draughty joints inside around the window
In and around Martin, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What the quote includes, VAT included or not
- Whether they’re fully insured
- How the colour is chosen
- Whether the sealant suits the joint
What affects the cost of window mastic
We quote each job individually. These are the things that affect it:
- Any mould that needs treating
- The old material and how stubborn it is
- The number and length of the joints
- The number of rooms or windows
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What to tell us for a quote
To make quoting easier, please include:
- A few photos by email, if you can
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- Whether it’s a home or a business
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Different surfaces, different methods
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall and tooled smooth.
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Condensation trapped between the panes
- Faulty window hardware
- A door that needs adjusting, rehanging or new seals
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Martin
- uPVC windows
- Timber windows & doors
- Composite doors
- Aluminium frames
- Window sills
- Patio & French doors
