Oxfordshire · England
Window & door mastic in Hampton Poyle, Oxfordshire
Window mastic for Hampton Poyle, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Black, perished sealant on frames
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
About our window mastic in Hampton Poyle
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you’re dealing with old mastic that has gone black or come away and leaking joints at the ends of sills, we can put it right.
Somewhere as small as Hampton Poyle, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Hampton Poyle (OX5)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
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 fails, we can still redo it.
Places near Hampton Poyle
More services for Hampton Poyle
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house, including the tidy-up. Somewhere like Hampton Poyle needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
- Move anything stored near the joints
How to get a quote
If you are in Hampton Poyle 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 we’ll agree the price before any work begins.
Related advice
Surface by surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
What we can’t put right
To be straight with you, some problems need a different trade:
- Soft or decayed wood in the frame
- A sash or casement that won’t close properly
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Composite doors
- uPVC windows
- Window sills
What window mastic looks like in Hampton Poyle
Historic houses like Blenheim Palace (about 3.9 miles west) are a reminder that the area around Hampton Poyle 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. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Islip station, renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hampton Poyle is about 6 miles north of Oxford, in Oxfordshire. Whether you are in the middle of Hampton Poyle or further out, window mastic is available for homes and businesses alike. Hampton Poyle is one of 443 towns and villages in Oxfordshire we cover. You can also see our page for Oxford, about 6 miles away.
Here we cover the OX5 postcode area for window mastic. If you need window mastic at a property on Bletchingdon Road and Oxford Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out window mastic in Bletchingdon (1 mile north), Kidlington (1 mile south-west), Gosford (2 miles south), Islip (2 miles south-east) and Enslow (2 miles north-west). Larger places within reach include Oxford (6 miles south), Bicester (7 miles north-east), Abingdon-on-Thames (11 miles south), Witney (10 miles west), Carterton (15 miles west) and Thame (14 miles south-east).
Near you in Hampton Poyle
In Hampton Poyle, that means homes and buildings near Bell at Hampton pub, among other places. The closest station to Hampton Poyle is Islip station, about 1.5 miles south-east of the centre. Well-known places in the area include Acland Hospital (5.2 miles south) and Soldiers of Oxfordshire Museum (3.9 miles west). Not far away are Woodsides Meadow.
Common questions in Hampton Poyle
Will you come out to Hampton Poyle?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do window mastic in Hampton Poyle?
Yes, Hampton Poyle is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
Where is Mr Mastic based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
How many windows can you do in a day?
A handful of frames is a short visit, while a whole house takes longer. You’ll get a timescale with the quote.
Do you work for landlords and businesses?
Yes. We work for householders, landlords, letting agents, businesses and hotels in Hampton Poyle.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Ventilate rooms so frames don’t stay wet inside
- Keep solvents and bleach off the sealant
- Clear any debris from frame drain holes
- Keep paint and stain on wooden frames in good order
Most silicone sealants will not take paint, so if you’re planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
Do you need window mastic in Hampton Poyle?
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. That is what backing rod is for.
The most common problems we see are:
- Black, perished sealant on frames
- Whistling draughts around closed windows
- Cracked sealant at the sill ends
- Draughty joints inside around the window
Schools such as Gosford Hill School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- What insurance they hold
- What guarantee comes with the work
- Which colour the sealant will be
- What the cure time is
Quotes for window mastic in Hampton Poyle
Jobs vary more than people expect. What affects the quote:
- Access and height
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- The product the joint needs
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
To make quoting easier, please include:
- The problem you’ve noticed
- A few pictures by email, if you can
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.