Hampshire · England
Window & door mastic in West End, Hampshire
Mastic around window and door frames, sills and patio doors for West End, backed by a one-year guarantee. Call for a quick quote.
- Gaps where the sill meets the wall
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
Why deal with it now?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. In a smaller place like West End, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why West End customers choose us
- One-year guarantee on every job
- We never seal over old sealant
- 180+ five-star Google reviews
- Tidy, careful work
Take a look at how sealant jobs are priced and what customers say.
Window mastic in West End, done properly
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we will tell you. We work on window sills, uPVC windows and timber windows & doors, and people most often call us about black, perished sealant on frames and rain getting in at the frame or under the sill.
Many houses in smaller places like West End have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

- Where
- West End (SO30, SO18)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Also in West End
Your questions about window mastic in West End
Is West End in your area for window mastic?
Yes. We work across London and the South East, and West End is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Can you help a landlord with a rental near Southampton Airport Parkway station?
Yes. We work for landlords and letting agents as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
How long will my window job take?
Allow a few hours for a few frames, or a day or more for a whole house. Access and how stubborn the old mastic is affect the time most.
Do you seal inside as well as outside?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses.
When is the sealant fully cured?
It depends on the product and the temperature. We tell you how long to leave it before we go.
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- Draughts through the window seals rather than the frame
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A sash or casement that will not close properly
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in West End
- Aluminium frames
- uPVC windows
- Patio & French doors
- Composite doors
- Timber windows & doors
- Window sills
What we’re called out for in West End
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Most people get in touch when they notice something like this:
- Leaking joints at the ends of sills
- Black, perished sealant on frames
- Gaps left after new windows were fitted
- White mastic on grey or black frames
If you look after a building such as Saint James' Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Whether they’re fully insured
- Who turns up on the day
- Whether all the old sealant comes out first
- What preparation is included
Landlord and commercial work in West End
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
DIY sealant or a professional job?
If you’re 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 fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
The process
We work through the job in order: protect, prepare, seal, tidy. Typically it takes most of a day for a typical house, less for a few frames and we leave things clean and tidy. In a smaller place like West End, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
Ask for a quote
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or email us and describe the job.
Read more
West End homes and the weather
With historic houses such as South Stoneham House (about 1.7 miles west) nearby, there’s older building stock in the area around West End as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Church of St James, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Southampton Airport Parkway station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
West End is about 2 miles east of Southampton, in Hampshire. Wherever you are in the SO30 postcode area, we can carry out window mastic at your property. West End is one of 683 places in Hampshire we cover for window mastic.
Jobs for window mastic in SO30 and SO18 is quoted and booked the same way as anywhere else. Window mastic is available to properties on High Street, Hatch Mead and Glenlea Close. We also cover Chartwell Green (1 mile west), Harefield (1 mile south), Townhill Park (1 mile west), Midanbury (1 mile west) and Mansbridge (1 mile north-west). Within a short drive, we also cover Winchester (9 miles north), Gosport (12 miles south-east), Eastleigh (3 miles north), Fareham (8 miles south-east), Horndean (14 miles east) and Totton (7 miles west).
What’s near West End
In West End, that means homes and buildings near Itchen Valley Country Park, Woodlands Community College and The Gregg School and the streets around them. West End’s nearest station is Southampton Airport Parkway station, roughly 1.8 miles north-west of the centre. A little further out are Netley Castle (3.7 miles south) and Marlands Shopping Centre (3.3 miles south-west). For a walk, there’s Netley Common.
What affects the quote in West End
We quote each job individually. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- The size of the job
- The product the joint needs
- The number of rooms or windows
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- If it’s domestic, commercial or a hotel
- The rough size of the job
- The address or postcode of the job
- Photos by email, if that’s easy
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
