West Sussex · England
Window Mastic in Balls Cross
Window mastic across Balls Cross and nearby, with old sealant always removed completely and a 12-month guarantee.
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
The process
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 like Balls Cross needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
Get a quote
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
How we handle window mastic in Balls Cross
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. If you have a bead that doesn’t match the frame and cracked or shrunken mastic around the frame, we can put it right, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Balls Cross is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Big or small, it’s backed by our 12-month guarantee in Balls Cross and across West Sussex.

- Location
- Balls Cross (GU28)
- Wider area
- West Sussex
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
Before you book, it’s worth knowing the limits too:
- Worn gaskets, brush seals or a door that has dropped
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Timber windows & doors
- Window sills
- Composite doors
- Patio & French doors
- Aluminium frames
- uPVC windows
FAQs for Balls Cross
Is there a guarantee on window mastic in Balls Cross?
All our work, in Balls Cross and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover Balls Cross for window mastic?
Yes. Our work covers London and the South East, and Balls Cross is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
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.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Balls Cross, along with the rest of our area.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Is the new sealant paintable?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Why act early in Balls Cross
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Around Balls Cross, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
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.
Why us?
- 20+ years of sealant experience
- Every job guaranteed for a year
- Colour agreed with you before work begins
- Homes, businesses and hotels
Take a look at how sealant jobs are priced or what customers say.
What affects the quote in Balls Cross
Some jobs are bigger than they look, and some smaller. The main factors:
- How much old sealant there is and how hard it is to remove
- How much there is to do
- The product the joint needs
- Whether the work is at height
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- If someone has resealed it before
- The rough size of the job
- Where the job is, and your postcode
- Photos by email, if that’s easy
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.
Places near Balls Cross
Also in Balls Cross
DIY versus a professional finish
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.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Window mastic in Balls Cross: 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 Petworth House (about 2.9 miles south) are a reminder that the area around Balls Cross has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In and around Balls Cross, as anywhere, good window mastic starts with a clean, dry, properly prepared joint. For an older house near a landmark such as Holy Trinity Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Balls Cross is about 12 miles west of Horsham, in West Sussex. Balls Cross gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across West Sussex, we cover 371 places, Balls Cross among them. Crawley is on our list too, about 18 miles from Balls Cross.
All of GU28 is covered for window mastic, from the main roads to the quietest streets. Nearby, we also carry out window mastic in Kirdford (2 miles east), Mackerel's Common (2 miles north-east), Plaistow (3 miles north-east), Ifold (4 miles north-east) and Wisborough Green (4 miles east). Larger places within reach include Horsham (12 miles east), Chichester (15 miles south-west), Littlehampton (15 miles south), Rustington (15 miles south), Storrington (10 miles south-east) and Billingshurst (6 miles east).
Around Balls Cross
Nearby you will also find Lodsworth Castle (4.7 miles south-west). Open spaces near Balls Cross include The Mens and Shillinglee Lake.
How to look after the new joints
Looking after new joints is easy:
- Wipe condensation off the frames
- Do not paint over the silicone
- Clear any debris from frame drain holes
- Clean frames with a soft cloth and soapy water
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just ring 0345 464 0079 or drop us an email.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Landlord and commercial work in Balls Cross
We also work for property managers and facilities teams in Balls Cross and across West Sussex. We can quote a run of properties together.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
