Oxfordshire · England
Window & door mastic in Eynsham, Oxfordshire
Professional window mastic in and around Eynsham, with every bit of old sealant taken out first and a one-year guarantee.
- Whistling draughts around closed windows
- Gaps where the sill meets the wall
- Rain getting in at the frame or under the sill
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Air rooms to keep condensation down around windows
- Repaint timber before it’s bare
- Don’t use solvent cleaners on the joint
- Do not paint over the silicone
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Window mastic in Eynsham, done properly
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. Common call-outs are for gaps between the frame and the inside reveal and cracked or shrunken mastic around the frame, on uPVC windows, window sills and timber windows & doors.
Around Eynsham, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Eynsham (OX29)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but new sealant can’t bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In an older home around Eynsham, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Why us?
- Sealant colour chosen to suit
- Old sealant always removed completely
- Tidy, careful work
- We are fully insured
Read our cost guide and customer reviews.
Towns and villages near Eynsham
Also in Eynsham
Questions from Eynsham
Will you come out to Eynsham?
Yes. Eynsham is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Hanborough station?
Yes. We work for landlords and agents as well as householders. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
Can you reach windows above the ground floor?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Do you guarantee window mastic?
Yes. Every job comes with our 12-month guarantee, and we’re ARBOMaster approved applicators.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Landlords, agents and businesses in Eynsham
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
For anyone letting property in or around Eynsham, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What the job involves on each surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.
Composite doors
Draughts round the door leaf generally come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
What happens on the day
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a morning for a couple of windows and a door, including the tidy-up. Parking around Eynsham is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each window and door with you.
- 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.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Clear the area around the work
- Mention if the joints have been sealed before
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Advice
What affects the quote in Eynsham
The price is agreed before any work begins. It takes into account:
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- When we can work, for business premises
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- Pictures of the joints, sent by email
- Whether it has been sealed before
- Where the job is, and your postcode
- How we’d reach the joints
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Windows and doors in Eynsham
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Blenheim Palace (about 4.1 miles north) are a reminder that the area around Eynsham 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.
In the older streets around Church of St Leonard, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Rented homes near Hanborough station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you look after a building such as Bartholomew School, larger buildings have plenty of frames, and the mastic around each one ages.
Eynsham is about 5 miles east of Witney, in Oxfordshire. We carry out window mastic for householders, landlords and businesses in Eynsham and the surrounding area, as part of our work across Oxfordshire. Our area takes in 443 places across Oxfordshire, from the larger towns to small villages. We also work in Oxford, about 7 miles from Eynsham.
All of OX29 is within our area for window mastic, from the main roads to the quietest streets. We cover properties on High Street, Station Road and Back Lane. We also cover the places around Eynsham: Swinford (1 mile south-east), Cassington (2 miles north-east), Farmoor (2 miles south-east), Sutton (2 miles south-west) and Filchampstead (3 miles south-east). Within a short drive, we also cover Oxford (7 miles east), Didcot (13 miles south-east), Bicester (13 miles north-east), Abingdon-on-Thames (8 miles south-east), Witney (5 miles west) and Carterton (9 miles west).
Near you in Eynsham
Typical jobs here are in homes near The Jolly Sportsman Public House And Attached Outbuildings and Eynsham Community Primary School, among other places. The nearest railway station is Hanborough station, about 2.9 miles north of the centre. Other landmarks nearby include Radcliffe Infirmary (5.1 miles east) and Oxford Bus Museum (3 miles north). Open spaces near Eynsham include Cumnor Hill and Hook Meadow and The Trap Grounds.