Oxfordshire · England
Window Mastic in Brookhampton
Our applicators work in Brookhampton on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Draughty joints inside around the window
- White mastic on grey or black frames
- Gaps where the sill meets the wall
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Brookhampton needs a little journey planning: 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 how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Keep children and pets away from the work area
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
Get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
Advice
Window mastic in Brookhampton, done properly
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you’re dealing with untidy mastic left by window fitters and rain getting in at the frame or under the sill, we can put it right.
Around Brookhampton, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Whatever the size of the job, you get the same one-year guarantee.
- Where
- Brookhampton (OX44)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Around Brookhampton, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- A 12-month guarantee on all work
- Colour picked to suit the job
- Over 20 years’ experience
- 4.9 on Google from 180+ five-star reviews
Read what affects the cost and our reviews.
Frames and glazing around Brookhampton
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Garsington Manor (about 2.7 miles north-west) are a reminder that the area around Brookhampton 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.
If you look after a building such as Stadhampton Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Radley station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as Church of St John the Baptist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Brookhampton is about 7 miles east of Abingdon-on-Thames, in Oxfordshire. Anywhere in OX44, we cover window mastic for homes and businesses. Brookhampton is one of 443 places in Oxfordshire where we work for window mastic. There’s also a page for Oxford, about 7 miles away.
Jobs for window mastic in OX44 is quoted and booked the same way as anywhere else. You will find streets such as Warren Hill, Newington Road and Newells Close, all of which we cover. Neighbouring places we cover for window mastic include Stadhampton (1 mile north), Newington (1 mile south-east), Drayton St Leonard (1 mile south), Great Holcombe (1 mile south) and Berinsfield (2 miles south-west). Larger places within reach include Oxford (7 miles north-west), Didcot (7 miles south-west), Bicester (15 miles north), Abingdon-on-Thames (7 miles west), Thame (8 miles north-east) and Wantage (14 miles south-west).
Local landmarks in Brookhampton
In Brookhampton, that means homes and buildings near The Bear And Ragged Staff Public House and the streets around them. The nearest railway station is Radley station, roughly 4.8 miles west. A little further out are Brightwell Castle (4.8 miles south) and Aston Martin Heritage Trust Museum (1.3 miles south). Not far away are Wells Farm and Wittenham Clumps.
What affects the cost of window mastic
Call for a quick quote. The main things that affect it are:
- The amount of work
- Access and height
- The product the joint needs
- Whether old sealant or filler has to be cut out
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
To help us quote quickly, let us know:
- Photos by email, if that is easy
- Access, such as stairs, a lift or height
- The rough size of the job
- Whether it’s a home or a business
Want a quote for window mastic? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Common questions in Brookhampton
I let a flat near Radley station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Brookhampton?
Yes, Brookhampton is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you get sealant to suit coloured frames?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
What does window mastic cost?
Size, access and the old material all affect the cost. Ask us for a quote.
Can resealing stop a draught around my window?
In many cases. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
How many windows can you do in a day?
A handful of frames is a short visit. You’ll get a timescale with the quote.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Keeping the joints in good condition
So the new joints stay in good condition:
- Repaint timber before it’s bare
- Paint up to the joint, not over it
- Avoid blasting the frames with a pressure washer
- Check the mastic once a year
Try not to touch the new joint while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
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. Any of these is worth a call.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
What the job involves on each surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Composite doors
Draughts round the door leaf normally come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
