Oxfordshire · England

Window Mastic in Great Holcombe

Specialist window mastic for Great Holcombe: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.

  • Water coming in at the bottom corners of a door
  • Mastic that is falling out in pieces
  • Cold air getting in at the frame edge

Book window mastic in Great Holcombe

How we handle window mastic in Great Holcombe

There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. If you’re dealing with gaps between the frame and the inside reveal and white mastic on grey or black frames, we can help, on patio & French doors, timber windows & doors and window sills alike.

Around Great Holcombe, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.

Big or small, it’s backed by our one-year guarantee.

Location
Great Holcombe (OX10)
Region
Oxfordshire
Guarantee
12 months on all our work
Price
Quoted before any work starts
Telephone
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

Why act early in Great Holcombe

Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. The old mastic has to come out. Older cottages and farmhouses around Great Holcombe can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.

Why us?

  • Trusted Arbo and Everbuild sealants
  • Rated 4.9 stars on Google
  • Neat joints and a tidy finish
  • We never seal over old sealant

Take a look at what affects the cost or customer reviews.

How the visit works

We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a morning for a couple of windows and a door. Somewhere as small as Great Holcombe, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each frame is looked over and we agree which ones need resealing.
  2. The old mastic is cut out and scraped back to clean surfaces.
  3. Deep gaps get closed-cell backing rod to set the depth.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. We tool each bead neatly and check every joint is closed.

Preparing for the visit

  • Let us know about stairs, lifts or work at height
  • Tell us about any previous sealing or DIY attempts
  • Clear items away from the joints we’re working on

Get a quote

If you are in Great Holcombe and need window mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.

Ask for a quote

Read more

What affects the cost of window mastic

For a quick quote, just ask. What matters most is:

  • When we can work, for business premises
  • Whether old sealant or filler has to be cut out
  • Whether the work is at height
  • Whether there’s mould to deal with

The cost depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.

What to tell us for a quote

There’s no need for technical detail. It helps if you can tell us:

  • The type of property
  • How we’d reach the joints
  • Where the job is, and your postcode
  • The problem you’ve noticed

Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear quote before work begins.

Frames and glazing around Great Holcombe

Historic houses like Garsington Manor (about 3.8 miles north-west) are a reminder that the area around Great Holcombe has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.

Around Great Holcombe, as everywhere, window mastic is only as good as the preparation behind it. In the older streets around Church of St Giles, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Great Holcombe is about 3 miles north of Benson, in Oxfordshire. If you need window mastic in Great Holcombe, please call 0345 464 0079 or email us for a quick quote. We cover Oxfordshire from our Crawley base. Great Holcombe is one of 443 towns and villages in Oxfordshire we cover. Oxford is on our list too, around 8 miles away.

Jobs for window mastic in OX10 is quoted and booked the same way as anywhere else. Nearby, we also carry out window mastic in Newington (1 mile north), Drayton St Leonard (1 mile west), Brookhampton (1 mile north), Stadhampton (1 mile north) and Berrick Salome (1 mile south-east). Further out, we also cover Oxford (8 miles north-west), Didcot (7 miles south-west), Abingdon-on-Thames (7 miles west), Thame (9 miles north-east), Wantage (14 miles west) and Henley-on-Thames (13 miles south-east).

Near you in Great Holcombe

Around Great Holcombe, our work takes us to homes and buildings near The Catherine Wheel pub and the streets around them. Other landmarks nearby include Brightwell Castle (4 miles south-west) and Littlemore Hospital (5.8 miles north-west). Open spaces near Great Holcombe include Wells Farm and Wittenham Clumps.

Map of Great Holcombe © OpenStreetMap contributors

How the job changes by surface

Composite doors

Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.

Timber windows & doors

Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We will tell you which suits your home.

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.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

Looking after it afterwards

So the new joints stay in good condition:

  • Do not aim a pressure washer at the joints
  • Wipe condensation off the frames
  • Keep drainage slots and sill grooves clear
  • Paint up to the joint, not over it

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 it pays to reseal before that happens.

Landlord and commercial work in Great Holcombe

We work for landlords and letting agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured.

Common questions in Great Holcombe

Is there a guarantee on window mastic in Great Holcombe?

All our work, in Great Holcombe and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.

Do you cover Great Holcombe for window mastic?

Yes, Great Holcombe is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.

Is it worth trying it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.

Do you work for landlords and businesses?

Yes, often. Several properties can go on one quote.

Can you do several jobs on one visit?

Yes. Several rooms, windows or areas can go on one quote.

How many windows can you do in a day?

Allow a few hours for a few frames, or a day or more for a whole house. Access and the amount of old mastic make the biggest difference.

Do you work on first-floor windows?

Yes, where they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.

Do you seal inside as well as outside?

Yes. Inside, the joint between frame and plaster is sealed neatly.

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