Hampshire · England
Window & door mastic in Westley, Hampshire
Mastic around window and door frames, sills and patio doors for homes and businesses in Westley and across Hampshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- White mastic on grey or black frames
- Rain getting in at the frame or under the sill
- Draughty joints inside around the window
Window mastic in Westley
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. Common call-outs are for rushed sealant from a window installation and water coming in at the bottom corners of a door, on uPVC windows, timber windows & doors and aluminium frames.
Around Westley, 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.
All our work is covered by a one-year guarantee, wherever you are in Hampshire.
- Where
- Westley (SO21)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
Landlords and letting agents in Westley can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
When something else is needed
It helps to know what we can’t do:
- Broken hinges, locks or handles
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Composite doors
- Patio & French doors
- uPVC windows
- Aluminium frames
- Timber windows & doors
- Window sills
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Avoid harsh chemicals near the mastic
- Paint up to the joint, not over it
- Look round the frames every year or so
- 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, and if anything looks wrong, just call 0345 464 0079 or email us.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Also near Westley
More services for Westley
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Westley, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. 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.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Read more
Leave it or put it right?
Draughts and leaks do not always mean new windows. Where the frames are sound, new mastic generally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we will say so. Where a wall is exposed, as many are in small places like Westley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Why Westley clients choose us
- Tidy, careful work
- Arbo and Everbuild products
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost or customer reviews.
Window mastic in Westley: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Sparsholt Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Church of St Stephen, the joint between an old wall and a newer frame is usually the first place rain gets in. If you let a flat or house near Winchester station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Westley is about 4 miles north-west of Winchester, in Hampshire. Whether you’re in the middle of Westley or further out, window mastic is available for homes and businesses alike. 683 places in Hampshire are on our list, from the larger towns to small villages. Southampton is on our list too, about 12 miles from Westley.
Here we cover the SO21 postcode area for window mastic. If you need window mastic at a property on Hillside Road, Library Lane and Chute Hill or a nearby road, our applicators can take on the job. Close by, we work in Sparsholt (1 mile south-east), Littleton (2 miles east), Harestock (3 miles east), Weeke (3 miles east) and Oliver's Battery (3 miles south-east). Larger places within reach include Winchester (4 miles south-east), Eastleigh (8 miles south), Andover (9 miles north-west), Totton (13 miles south-west), Chandler's Ford (7 miles south) and Hedge End (12 miles south).
Around Westley
Typical jobs here are in homes near The Plough Inn and the streets around them. The nearest railway station is Winchester station, about 3.4 miles east. Nearby you will also find Winchester Castle (3.5 miles south-east) and Balfour Museum of Hampshire Red Cross History (2.8 miles south-east). Open spaces near Westley include Winnall Moors.
Common questions in Westley
Is Westley within the area you cover?
Yes. Westley is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Westley in your area for window mastic?
Yes, Westley is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do you guarantee window mastic?
Yes. Our 12-month guarantee covers every job.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How much does window mastic cost in Westley?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Are you fully insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
How the job changes by surface
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain can’t run into the wall.
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that without cracking.
What affects the cost of window mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- The type of sealant required
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
When you contact us, these details help:
- The rough size of the job
- The type of property
- Photos by email, if that’s easy
- The address or postcode of the job
Want a quote for window mastic? Please phone 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.