Oxfordshire · England

Window Mastic in East Lockinge

Professional window mastic in and around East Lockinge, with every bit of old sealant taken out first.

  • Rushed sealant from a window installation
  • Rain getting in at the frame or under the sill
  • Cold air getting in at the frame edge

Window mastic for East Lockinge homes and businesses

DIY sealant or a professional job?

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

About our window mastic in East Lockinge

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. If you have water coming in at the bottom corners of a door and black, perished sealant on frames, we can put it right, whatever the surface.

Around East Lockinge, 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.

There’s a 12-month guarantee on every job.

Place
East Lockinge (OX12)
Region
Oxfordshire
Guarantee
One year on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

How the visit works

When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a few frames, or a day or more for a whole house. In a small place like East Lockinge, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check how each frame can be reached safely.
  2. All the failed sealant is cut away, along with any loose debris.
  3. The surfaces are cleaned and left dry, and primed where the sealant calls for it.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. We tool the joint so water runs off, then clear up.

Getting ready for the visit

  • Keep children and pets away from the work area
  • Where the joints are inside, avoid wetting them before we arrive
  • Clear the area around the work

Get a quote

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.

Get a price

Related advice

How the job changes by surface

Patio & French doors

Heavy door frames can move more than windows. A flexible sealant copes with that without cracking.

Composite doors

Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. We suggest:

  • Use gentle cleaners on frames and sealant
  • Keep timber frames painted
  • Avoid blasting the frames with a pressure washer
  • Wipe condensation off the frames

Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.

On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.

Why it’s worth doing now in East Lockinge

Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Older cottages and farmhouses around East Lockinge can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.

Why East Lockinge customers choose us

  • Full insurance on every job
  • A choice of colours where the product allows
  • 20+ years of sealant experience
  • An ARBOMaster approved applicator

See our cost guide or our reviews.

What sealant work can’t fix

New sealant can’t fix everything, and we’d rather say so up front. It will not solve:

  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • A door that needs adjusting, rehanging or new seals
  • Damp problems in the wall away from the window

If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.

Where we work in East Lockinge

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

Questions from East Lockinge

Is window mastic in East Lockinge guaranteed?

Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.

Can you do window mastic in East Lockinge?

Yes, East Lockinge is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear quote.

Will you leave a mess?

Tidy work is part of the job. We protect what’s around the joints.

Will resealing my frames help with draughts?

If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.

Can you work on commercial sites?

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

Can you seal over the old sealant?

No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

Are you insured?

Yes. We are fully insured, and we have been doing sealant work for more than 20 years.

Is the new sealant paintable?

Most silicone cannot be painted. Let us know beforehand, and we’ll use a paintable product where it suits.

Windows and doors in East Lockinge

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you live in an older home near Church of All Saints, frames set in older brick or stone need a sealant that suits the wall as well as the frame. In and around East Lockinge, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.

East Lockinge is about 2 miles east of Wantage, in Oxfordshire. If you need window mastic in East Lockinge, it’s easy to get a quote: please ring 0345 464 0079 or email us. We’re based in Crawley and cover Oxfordshire. Our area takes in 443 places across Oxfordshire. For nearby work, see our Oxford page, about 13 miles away.

All of OX12 is within our area for window mastic. We also cover Ardington (1 mile north), West Hendred (1 mile north-east), East Hendred (2 miles north-east), Rowstock (3 miles east) and Farnborough (3 miles south). Further out, we also cover Oxford (13 miles north-east), Didcot (6 miles east), Abingdon-on-Thames (8 miles north-east), Witney (15 miles north), Grove (3 miles north-west) and Faringdon (10 miles north-west).

What’s near East Lockinge

Around East Lockinge, our work takes us to homes and buildings near The Boar's Head pub, among other places. A little further out are Williams F1 Grand Prix Collection (2.7 miles north-west). For a walk, there’s Letcombe Valley and Chain Hill.

Map of East Lockinge © OpenStreetMap contributors

For landlords and businesses

Landlords and agents in East Lockinge can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

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