Oxfordshire · England
Window Mastic in Middle Aston
Our applicators work in Middle Aston on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Draughts coming in around windows and doors
- Leaking joints at the ends of sills
- A bead that doesn’t match the frame
Window mastic in Middle Aston
Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. We’re often asked to deal with gaps where the sill meets the wall and draughts coming in around windows and doors, across window sills, uPVC windows and aluminium frames.
Homes in small places like Middle Aston often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Each job carries a 12-month guarantee.
- Place
- Middle Aston (OX25)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Middle Aston, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Before we arrive
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.
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Middle Aston questions
I let a flat near Heyford station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Can you do window mastic in Middle Aston?
Yes. We work across London and the South East, and Middle Aston is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Are you fully insured?
Yes. We are fully insured.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
How we quote for window mastic
There’s no set price list. What we look at:
- The product the joint needs
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- How many areas need sealing
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
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 explain what’s involved.
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
If you manage several properties in or around Middle Aston, several properties can be quoted together. Just tell us the addresses and what each one needs.
Towns and villages near Middle Aston
Other services in Middle Aston
Common problems we fix in Middle Aston
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Signs it’s time to call us include:
- Whistling draughts around closed windows
- Rushed sealant from a window installation
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
For landlords with property near Heyford station, renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- When the joint can take water or movement
- Whether the sealant suits the joint
- Whether you can choose the colour
- Whether VAT is included
What window mastic looks like in Middle Aston
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Dr Radcliffe's Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Middle Aston is about 7 miles west of Bicester, in Oxfordshire. If you need window mastic in Middle Aston, please phone 0345 464 0079 or drop us an email for a quick quote. We cover Oxfordshire from our Crawley base. Our Oxfordshire coverage runs to 443 places, Middle Aston among them. Oxford is on our list too, around 13 miles away.
We work across the OX25 postcode area for window mastic. Neighbouring places we cover for window mastic include Steeple Aston (1 mile south), North Aston (1 mile north), Duns Tew (1 mile north-west), Dane Hill (2 miles north) and Steeple Barton (2 miles south-west). Larger places within reach include Oxford (13 miles south), Banbury (9 miles north), Bicester (7 miles east), Witney (13 miles south-west), Kidlington (8 miles south) and Headington Quarry (13 miles south).
Landmarks near Middle Aston
Typical jobs here are in homes near Red Lion pub and the streets around them. The closest station to Middle Aston is Heyford station, roughly 1.5 miles south of the centre. Well-known places in the area include Deddington Castle (2.9 miles north).
Why deal with it now?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. Where a wall is exposed, as many are in small places like Middle Aston, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Middle Aston
- Tidy, careful work
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
- Over 20 years’ experience
See what affects the cost or our reviews.
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Surface by surface
Aluminium frames
Coated aluminium needs a compatible sealant. We use a neutral-cure product.
Composite doors
An exposed front door gets wind-driven rain. Those corners get the most care.