Oxfordshire · England
Window & door mastic in Hardwick, Oxfordshire
Window mastic for Hardwick, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rushed sealant from a window installation
- Mastic that’s falling out in pieces
- Draughts coming in around windows and doors
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep paint off silicone joints
- Wash the frames with mild soapy water
- Make sure the drainage slots are not blocked
- Keep timber frames painted
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
Window mastic in Hardwick
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just ring 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached for window mastic in Hardwick. We’re often asked to deal with cracked sealant at the sill ends and white mastic on grey or black frames, across patio & French doors, window sills and timber windows & doors.
Around Hardwick, 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.
Your job is guaranteed for a year, as with all our work.
- Place
- Hardwick (OX29)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
The process
You do not need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes anything from an hour or two to a full day, depending on how many frames there are for a typical job. Somewhere like Hardwick needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Mention any tricky access
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
Getting a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details.
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Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Landlords and letting agents in Hardwick can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Common questions in Hardwick
Do you cover smaller places like Hardwick?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is there a guarantee on window mastic in Hardwick?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Do you work on first-floor windows?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first.
Do you have sealant for grey or black windows?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
I rent my home. Can I book you?
Yes. Check with your landlord; we can send the quote to them too.
Do you need window mastic in Hardwick?
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
The problems people normally mention when they call include:
- Mastic that’s falling out in pieces
- Cold air getting in at the frame edge
- Sealant in the wrong colour for the frame
- Untidy mastic left by window fitters
In and around Hardwick, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
- When the joint can take water or movement
- Are they insured?
Towns and villages near Hardwick
Other services in Hardwick
What window mastic looks like in Hardwick
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Longworth House (about 4.1 miles south) are a reminder that the area around Hardwick 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 is traditional sand mastic.
If you live in an older home near Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Hardwick is about 3 miles south-east of Witney, in Oxfordshire. From the centre of Hardwick to the outskirts, we cover window mastic for every kind of property. Hardwick is one of 443 towns and villages in Oxfordshire we cover. There’s also a page for Oxford, roughly 9 miles from Hardwick.
Postcode districts we cover here for window mastic: OX29. With the B4449 close by, Hardwick is easy for our applicators to reach. If you’re just outside Hardwick, we cover Brighthampton (2 miles south), Ducklington (2 miles north-west), Standlake (2 miles south-east), High Cogges (2 miles north) and South Leigh (2 miles north-east). We also work in nearby towns such as Oxford (9 miles east), Didcot (13 miles south-east), Abingdon-on-Thames (9 miles south-east), Witney (3 miles north-west), Carterton (6 miles west) and Wantage (11 miles south).
What’s near Hardwick
Other landmarks nearby include Hinton Waldrist Castle (4.2 miles south) and Cogges Manor Farm Museum (2.6 miles north-west).
Leave it or put it right?
Draughts and leaks don’t always mean new windows. Where the frames are sound, new mastic generally deals with draughts and leaks at the edges. If we find failed glass units or worn seals, we’ll tell you. Older cottages and farmhouses around Hardwick can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why book with us
- Fully insured
- Neat joints and a tidy finish
- We agree the colour with you first
- Sealant colour chosen to suit
What we cannot put right
We’ll always be straight with you, so here’s what sealant cannot fix:
- A failed sealed unit that has misted up
- A frame that has rotted at the joint
- A sash or casement that won’t close properly
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before booking.
Surfaces we seal
- uPVC windows
- Aluminium frames
- Composite doors
- Window sills
- Patio & French doors
- Timber windows & doors