Hampshire · England
Window & door mastic in Hillhead, Hampshire
Window and door frames in Hillhead need attention? We remove the old material, prepare the joints and seal them properly.
- White mastic on grey or black frames
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
Window mastic in Hillhead, done properly
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We work on aluminium frames, timber windows & doors and window sills, and people most often call us about gaps left after new windows were fitted and mastic that has split away from the wall.
Somewhere as small as Hillhead, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee.
- Location
- Hillhead (SO45)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What happens if it’s left?
Failed mastic isn’t a reason to replace sound windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. If we find failed glass units or worn seals, we’ll tell you. Where a wall is exposed, as many are in small places like Hillhead, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why choose Mr Mastic in Hillhead
- We never seal over old sealant
- Rated 4.9 stars on Google
- We’re fully insured
- Homes, businesses and hotels
Read what affects the cost or what customers say.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Avoid harsh chemicals near the mastic
- Walk round the house once a year and look at the joints
- Clean frames with a soft cloth and soapy water
- Keep jet washers away from the mastic
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Hillhead questions
Is window mastic in a coastal place like Hillhead any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Will you come out to Hillhead?
Yes. Hillhead is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
What the job involves on each surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
Towns and villages near Hillhead
Other services in Hillhead
What happens on the day
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work starts. The work usually takes anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Hillhead, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
Ask for a quote
If you’re in Hillhead and need window mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Advice
Hillhead homes and the weather
Hillhead is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Hamble station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Hillhead is about 4 miles north of Cowes, in Hampshire. Homes, rented property, offices and hotels in Hillhead can book us for window mastic. Every job comes with our 12-month guarantee. Hillhead is one of 683 towns and villages in Hampshire we cover. For nearby work, see our Southampton page (8 miles or so).
Work in SO45 is quoted and booked the same way as anywhere else. If you’re just outside Hillhead, we cover Calshot (1 mile north-west), Sprat's Down (1 mile west), Stanswood (1 mile south-west), Stonehills (1 mile north-west) and Ashlett (1 mile north-west). Larger places within reach include Gosport (7 miles east), Havant (15 miles east), Eastleigh (11 miles north), Fareham (6 miles north-east), Horndean (15 miles north-east) and Totton (11 miles north-west).
Landmarks near Hillhead
Hillhead’s nearest station is Hamble station, about 4.3 miles north of the centre. A little further out are Sir Max Aitken Museum (3.3 miles south) and Calshot Castle (1 mile north-east). The countryside around Hillhead includes Mercury Marshes and Mill Hill.
Signs you need window mastic in Hillhead
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.
Most people get in touch when they notice one of these:
- Mastic that’s falling out in pieces
- Cold air getting in at the frame edge
- Cracked or shrunken mastic around the frame
- Untidy mastic left by window fitters
In the older streets around St George, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before you book anyone
- Who turns up on the day
- What the cure time is
- Which sealant they’ll use, and why
- What preparation is included
What affects the cost of window mastic
The price is agreed before any work begins. It’s based on:
- The old material and how stubborn it is
- Working hours on commercial sites
- The number and length of the joints
- The product the joint needs
Rather than a set price list, we look at what your job involves: 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
Photos by email are helpful but not essential. Try to tell us:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- What’s wrong with the joints now
- The address or postcode of the job
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.