Hampshire · England
Window & door mastic in Matchams, Hampshire
Window mastic in Matchams from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Leaking joints at the ends of sills
- Gaps left after new windows were fitted
- Cracked internal joints between frame and plaster
Surface by surface
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We will tell you which suits your home.
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour suits the frame.
Window mastic for homes and businesses in Matchams
The new joint does not have to be white. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. If you’re dealing with whistling draughts around closed windows and old mastic that has gone black or come away, we can help.
Around Matchams, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months.
- Where
- Matchams (BH24)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Matchams questions
Is Matchams within the area you cover?
Yes. Matchams is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is window mastic in Matchams guaranteed?
All our work, in Matchams and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
How long will my window job take?
Allow most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Can you seal over the old sealant?
No. We remove every bit of old sealant first.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Matchams homes and the weather
Historic houses like Avon Tyrrell House (about 3.6 miles east) are a reminder that the area around Matchams 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 is traditional sand mastic. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In and around Matchams, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Matchams is in Hampshire. Wherever you are in the BH24 postcode area, we cover window mastic for homes and businesses. Across Hampshire, we cover 683 places, Matchams among them. You can also see our page for Southampton, about 20 miles away.
Jobs for window mastic in BH24 works the same way as everywhere else we cover. If you need window mastic at a property on Maple Walk, Ash Tree Close and Sycamore Way or anywhere close by, our applicators can take on the job. Other places close to Matchams include Avon Castle (1 mile north-east), St Ives (1 mile north), St Leonards (1 mile north-west) and Ashley Heath (2 miles north-west). Larger places within reach include Totton (15 miles north-east), Lymington (12 miles east), New Milton (8 miles south-east), Ringwood (3 miles north-east), Barton on Sea (8 miles south-east) and Ashley (9 miles south-east).
Landmarks near Matchams
Locally, jobs take us to homes and businesses close to Avon Heath Country Park and the streets around them. A little further out are St Leonard's Hospital (1.7 miles west). For a walk, there’s St Catherine's Hill and Blashford Lakes.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a morning for a couple of windows and a door and we leave things clean and tidy. For a village or hamlet like Matchams, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
How to prepare
- Let us know about earlier repairs to the joints
- Move anything stored near the joints
- Keep children and pets away from the work area
Getting a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we will take it from there.
Read more
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
What we cannot put right
Before you book, it’s worth knowing the limits too:
- Penetrating damp from a failed cavity tray or render
- Soft or decayed wood in the frame
- Faulty window hardware
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
What we seal
- Window sills
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Composite doors
Common problems we fix in Matchams
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
People normally contact us when they notice something like this:
- Cracked or shrunken mastic around the frame
- Black, perished sealant on frames
- Cold air getting in at the frame edge
- Water coming in at the bottom corners of a door
Historic houses such as Avon Tyrrell House, about 3.6 miles east, show how far back building around Matchams goes.
What to look for in a quote
- Whether you can choose the colour
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
- What happens if they find a problem under the old sealant
Towns and villages near Matchams
Also in Matchams
What happens if it’s left?
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. Around Matchams, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email.
Why choose Mr Mastic in Matchams
- An ARBOMaster approved applicator
- Any old sealant cut out fully, not covered over
- 4.9 on Google from 180+ five-star reviews
- We leave the area clean and tidy
Take a look at our cost guide or our reviews.
Keeping the joints in good condition
So the new joints stay in good condition:
- Air rooms to keep condensation down around windows
- Look round the frames every year or so
- Paint up to the joint, not over it
- Do not aim a pressure washer at the joints
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.