Oxfordshire · England

Tadmarton Window Mastic

Mastic around window and door frames, sills and patio doors for Tadmarton, backed by a 12-month guarantee. Ask us for a quote.

  • Water coming in at the bottom corners of a door
  • Hard, cracked sealant around windows
  • Rushed sealant from a window installation

Trusted window mastic in Tadmarton

Window mastic in Tadmarton, done properly

From a single sill to a whole house of windows, you’ll get a clear quote before we start. To get one, phone 0345 464 0079 or send us an email with the number of frames and any access details for window mastic in Tadmarton. If you have a bead that doesn’t match the frame and rushed sealant from a window installation, we can help, whatever the surface.

Mastic can only go onto a dry, clean joint, so window work in Tadmarton is booked around the forecast. Let us know about access to all the frames, upstairs ones included.

Each job carries a 12-month guarantee, whatever its size.

Applicator reaching up to seal an external door frame on a sunny day
Where
Tadmarton (OX15)
Wider area
Oxfordshire
Cover
A year, on every job
Quote
A clear price before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

How we quote for window mastic

We do not publish a price list, because jobs vary so much. What we look at:

  • How many areas need sealing
  • The number and length of the joints
  • Mould in or behind the old joints
  • Whether the work is at height

Combining jobs into one visit normally makes better use of the time than several visits. We will send you a clear quote for the lot.

What we need to know

What to tell us when you ask for a quote:

  • Where the property is
  • Roughly how big the job is
  • What the problem is, such as mould, gaps, leaks or cracking
  • If it’s domestic, commercial or a hotel

For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.

Work for landlords, hotels and businesses

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

What we cannot put right

Sealant is not the answer to every problem, and we will tell you before we start. Sealant will not put right:

  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Rotten timber, which needs a joiner first
  • Faulty window hardware

If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.

What we seal

  • Timber windows & doors
  • Patio & French doors
  • Aluminium frames
  • Window sills
  • Composite doors
  • uPVC windows

How the job changes by surface

Window sills

Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.

Patio & French doors

Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so they get particular care.

Questions from Tadmarton

Is Tadmarton within the area you cover?

Yes, we do. 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.

Is Tadmarton in your area for window mastic?

Yes, Tadmarton is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.

Do you have sealant for grey or black windows?

Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.

Do you hold any approvals?

Yes. We hold ARBOMaster approved applicator status and we are fully insured too.

What does window mastic cost?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Can you reach windows above the ground floor?

Yes, in most cases. We plan safe access before the job, so mention the height and anything in the way.

Do you do commercial work?

Yes, regularly. We can plan bigger jobs in stages.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Aftercare tips

So the new joints stay in good condition:

  • Wipe condensation off the frames
  • Keep solvents and bleach off the sealant
  • Look round the frames every year or so
  • Don’t paint over the silicone

Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.

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.

Frames and glazing around Tadmarton

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. With historic houses such as Broughton Castle (about 1.5 miles east) nearby, there’s older building stock in the area around Tadmarton as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

For landlords with property near Banbury station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Tadmarton is about 4 miles south-west of Banbury, in Oxfordshire. For window mastic in and around Tadmarton, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We are based in Crawley and cover Oxfordshire, Tadmarton included. We cover 443 towns and villages across Oxfordshire, from the larger towns to small villages. Oxford is on our list too, around 21 miles away.

All of OX15 is within our area for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on Main Street and Old Glebe. Other places close to Tadmarton include Swalcliffe (1 mile west), Shutford (2 miles north), Milcombe (2 miles south-east), Burdrop (2 miles west) and Sibford Ferris (2 miles west). Within a short drive, we also cover Banbury (4 miles north-east), Bicester (15 miles south-east), Bure Park (14 miles south-east), Chipping Norton (8 miles south-west), Neithrop (3 miles north-east) and Grimsbury (5 miles north-east).

Local landmarks in Tadmarton

Around Tadmarton, our work takes us to homes and buildings near The Lampet Arms. The nearest railway station is Banbury station, roughly 4.5 miles east. Nearby you’ll also find Horton General Hospital (4 miles east) and Broughton Castle (1.5 miles east). The countryside around Tadmarton includes Crouch Hill and Woodford Bottom and Lamb's Pool.

Map of Tadmarton © OpenStreetMap contributors

What we do, step by step

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from an hour or two to a full day, depending on how many frames there are, and the area is left clean. For a village or hamlet like Tadmarton, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by checking each window and door with you.
  2. We remove the old mastic and clean the frame and the wall.
  3. Deep gaps are filled with backing rod to set the depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. We clear up and check every joint is fully closed.

Before we arrive

  • Tell us about any water getting in
  • Keep children and pets away from the work area
  • For indoor joints, keep the area dry beforehand if you can

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 will talk you through the work.

Get a quick quote

Advice

What we are called out for in Tadmarton

Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. That’s what backing rod is for.

Common reasons people contact us are:

  • A bead that does not match the frame
  • Rain getting in at the frame or under the sill
  • Black, perished sealant on frames
  • Draughty joints inside around the window

Homes close to Church of St Nicholas include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

What to look for in a quote

  • What insurance they hold
  • What happens if the job turns out different
  • Is VAT in the price?
  • What the cure time is

Our hiring checklist

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job