Oxfordshire · England
Nether Worton Window Mastic
Mastic around window and door frames, sills and patio doors for Nether Worton, backed by a one-year guarantee. Ask us for a quote.
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
- Gaps where the sill meets the wall
About our window mastic in Nether Worton
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on composite doors, timber windows & doors and window sills, and people most often call us about cracked internal joints between frame and plaster and whistling draughts around closed windows.
In a village or hamlet like Nether Worton, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Your job is guaranteed for a year, as with all our work.
- Where
- Nether Worton (OX7)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Nearby places to Nether Worton
More services for Nether Worton
What we cannot put right
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Where we work in Nether Worton
- Patio & French doors
- Aluminium frames
- Window sills
- uPVC windows
- Composite doors
- Timber windows & doors
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Keep paint and stain on wooden frames in good order
- Avoid blasting the frames with a pressure washer
- Do not paint over the silicone
- Keep solvents and bleach off the sealant
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. Resealing closes it.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Surface by surface
Composite doors
A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so they get particular care.
What happens on the day
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. It normally takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Nether Worton needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each frame and agree which ones need doing.
- 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.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved.
Related advice
When to call us in Nether Worton
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
People usually contact us after spotting something like this:
- Leaking joints at the ends of sills
- Gaps between the frame and the inside reveal
- Rushed sealant from a window installation
- Draughts coming in around windows and doors
Letting a property close to Heyford station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- How the surfaces are prepared before sealing
- Who does the work, and how experienced they are
- Which colour the sealant will be
- When the joint can take water or movement
Windows and doors in Nether Worton
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 the older streets around Church of the Holy Trinity, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Nether Worton is about 7 miles south of Banbury, in Oxfordshire. Jobs in Nether Worton get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Oxfordshire, we cover 443 places, Nether Worton among them. For nearby work, see our Oxford page, about 16 miles away.
Work in OX7 is quoted and booked the same way as anywhere else. Other places close to Nether Worton include Sandford St Martin (2 miles south), Hempton (2 miles north-east), Duns Tew (2 miles east), Barford St Michael (2 miles north) and Middle Barton (2 miles south). Within a short drive, we also cover Banbury (7 miles north), Bicester (10 miles south-east), Witney (13 miles south), Kidlington (10 miles south), Bure Park (10 miles east) and Chipping Norton (7 miles west).
Near you in Nether Worton
For rail, the closest station is Heyford station, about 4.5 miles south-east. Well-known places in the area include Old Forge Museum (Great Tew) (1.9 miles west) and Deddington Castle (3.1 miles north-east).
FAQs for Nether Worton
Can you do window mastic in Nether Worton?
Yes. We work across London and the South East, and Nether Worton is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Heyford station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Are you insured?
Yes. We’re fully insured.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Can you match the sealant to my frames?
Normally, yes. Tell us the frame colour when you get in touch and we’ll match it as closely as we can.
Can you do several jobs on one visit?
Yes. Just list everything you need.
How much does window mastic cost in Nether Worton?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.