West Sussex · England
Hampers Green Window Mastic
Our applicators work in Hampers Green on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
- Whistling draughts around closed windows
How we handle window mastic in Hampers Green
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. Common call-outs are for old mastic that has gone black or come away and cracked or shrunken mastic around the frame, across window sills, patio & French doors and timber windows & doors.
Around Hampers Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Hampers Green (GU28)
- Region
- West Sussex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
Frames and glazing around Hampers Green
Historic houses like Petworth House (about 0.6 miles south) are a reminder that the area around Hampers Green has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
For an older house near a landmark such as The Church of St Mary the Virgin, the joint between an old wall and a newer frame is usually the first place rain gets in. Schools such as Petworth Cof E Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Hampers Green is about 13 miles north-east of Chichester, in West Sussex. Homes, rented property, offices and hotels in Hampers Green is covered for window mastic, old or new, large or small. The work is guaranteed for a year. 371 places in West Sussex are on our list, large and small. We also work in Crawley, around 20 miles away.
Every address in GU28 is within our area for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on London Road, Hampers Green and Northend Close or anywhere close by, we can help. We also cover Petworth (1 mile south), Tillington (1 mile south-west), Upperton (1 mile west), Haslingbourne (2 miles south) and Rotherbridge (2 miles south-west). Within a short drive, we also cover Horsham (13 miles east), Worthing (15 miles south-east), Bognor Regis (15 miles south), Chichester (13 miles south-west), Littlehampton (13 miles south) and Rustington (13 miles south).
What’s near Hampers Green
We work in homes and buildings around The Old Square Tavern and the streets around them. For rail, the closest station is Pulborough station, roughly 4.8 miles south-east. Other landmarks nearby include Coultershaw Heritage Site (2 miles south) and Midhurst Community Hospital (5.5 miles west). Green spaces nearby include The Mens.
How the visit works
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes most of a day for a typical house, less for a few frames, including the tidy-up. In a small place like Hampers Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
Read more
Do you need window mastic in Hampers Green?
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The problems people usually mention when they call are:
- Hard, cracked sealant around windows
- Whistling draughts around closed windows
- Old mastic that has gone black or come away
- Sealant in the wrong colour for the frame
Letting a property close to Pulborough station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before you book anyone
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
- Is the old sealant removed completely?
What affects the cost of window mastic
Jobs vary more than people expect. What affects the quote:
- The size of the job
- How easy the joints are to reach
- The type of sealant required
- Whether old sealant or filler has to be cut out
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- The rough size of the job
- If someone has resealed it before
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or email us.
Towns and villages near Hampers Green
What else we do in Hampers Green
Looking after it afterwards
To keep the joints looking good and working properly:
- Avoid blasting the frames with a pressure washer
- Ventilate rooms so frames do not stay wet inside
- Keep timber frames painted
- Do not paint over the silicone
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Penetrating damp from a failed cavity tray or render
- Faulty window hardware
- Condensation trapped between the panes
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Composite doors
- Timber windows & doors
- Patio & French doors
- Aluminium frames
- Window sills
- uPVC windows
Hampers Green questions
Can you do window mastic in Hampers Green?
Yes. Our work covers London and the South East, and Hampers Green is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do you work for landlords with property near Pulborough station?
Yes. We work for landlords and letting agents as well as homeowners. You can phone 0345 464 0079 or email us with the details for a clear quote.
Are you insured?
Yes, we’re fully insured.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
How long should I leave it?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Tell us about access when you get in touch so we can plan the job.