West Sussex · England
Window & door mastic in Westhampnett, West Sussex
Window mastic for Westhampnett and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Rushed sealant from a window installation
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
What affects the quote in Westhampnett
The quote reflects the job in front of us. We take into account:
- Access and height
- Mould in or behind the old joints
- The type of sealant required
- How many rooms, windows or areas are involved
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
There’s no need for technical detail. Just tell us:
- Any previous sealing or DIY work
- Where the property is
- Photos by email, if that’s easy
- Roughly how big the job is
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
How we handle window mastic in Westhampnett
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. Either or both can be done. If you have a bead that doesn’t match the frame and cracked or shrunken mastic around the frame, we can help, on composite doors, timber windows & doors and aluminium frames alike.
Somewhere as small as Westhampnett, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Westhampnett (PO18)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
The work is kept neat and contained to the area we are working on. The job usually takes most of a day for a typical house, less for a few frames, and we explain the cure time before we leave. Somewhere as small as Westhampnett, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- 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.
How to prepare
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or email us.
Advice
Landlords, agents and businesses in Westhampnett
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Air rooms to keep condensation down around windows
- Paint up to the joint, not over it
- Keep paint and stain on wooden frames in good order
- Check the mastic once a year
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Honest limits
Before booking, it’s worth knowing the limits too:
- Soft or decayed wood in the frame
- Penetrating damp from a failed cavity tray or render
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Where we work in Westhampnett
- Window sills
- uPVC windows
- Composite doors
- Aluminium frames
- Patio & French doors
- Timber windows & doors
Common problems we fix in Westhampnett
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, while a joint packed solid can’t stretch. That’s what backing rod is for.
If you can see any of these, it’s time to have the joints looked at:
- Cracked or shrunken mastic around the frame
- Draughts coming in around windows and doors
- Cracked sealant at the sill ends
- Black, perished sealant on frames
Rented homes near Chichester station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- How long to leave it before use
- Are they insured?
- How hidden problems are handled
- What preparation is included
Window mastic in Westhampnett: local notes
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. Historic houses like Goodwood House (about 1.6 miles north) are a reminder that the area around Westhampnett has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around The Parish Church of St Peter, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as The March CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Westhampnett is about 1 mile north-east of Chichester, in West Sussex. Homes, rented property, offices and hotels in Westhampnett is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 371 towns and villages across West Sussex. For nearby work, see our Portsmouth page (14 miles or so).
We cover every part of PO18 for window mastic. Whether your property is on Hill Road, Sears Close and Hamilton Way or a nearby road, our applicators can take on the job. Other places close to Westhampnett include Maudlin (1 mile east), Shopwyke (1 mile south-east), Westerton (1 mile north-east), Portfield (1 mile south-west) and Strettington (1 mile north-east). Larger places within reach include Bognor Regis (5 miles south-east), Selsey (8 miles south), Littlehampton (10 miles east), Emsworth (8 miles west), Rustington (11 miles east) and Storrington (14 miles east).
Near you in Westhampnett
Around Westhampnett, our work takes us to homes and buildings near The Coach And Horses Public House, Westbourne House School and Chichester High School For Girls, among other places. Westhampnett’s nearest station is Chichester station, roughly 1.7 miles south-west. A little further out are Chichester Castle (1.2 miles south-west) and Chichester Centre (0.8 miles west). Green spaces nearby include Stoke Down and Kingley Vale National Nature Reserve.
Your questions about window mastic in Westhampnett
Is Westhampnett within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Chichester station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
What do you need from me for a quote?
A short description and the location. If we need more, we will ask.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.