West Sussex · England
Window & door mastic in Balcombe Lane, West Sussex
Professional window mastic in and around Balcombe Lane, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant in the wrong colour for the frame
- Mastic that’s falling out in pieces
- Cracked sealant at the sill ends
What affects the quote in Balcombe Lane
You will get a clear quote before we start. It’s based on:
- The type of sealant required
- The number of rooms or windows
- Any mould that needs treating
- How much there is to do
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- Where the property is
- The problem you’ve noticed
- The type of property
- Roughly how big the job is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
How we handle window mastic in Balcombe Lane
The new joint does not have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. We work on patio & French doors, composite doors and window sills, and the jobs we see most are old mastic that has gone black or come away and cracked internal joints between frame and plaster.
Mastic can only go onto a dry, clean joint, so window work in Balcombe Lane is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes as standard, so you’re covered after we’ve gone.
- Where
- Balcombe Lane (RH17)
- Region
- West Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When it isn’t the sealant
New sealant can’t fix everything, and we’ll tell you before work begins. It won’t solve:
- Damp problems in the wall away from the window
- A frame that has rotted at the joint
- A sash or casement that won’t close properly
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Patio & French doors
- Timber windows & doors
- Composite doors
- Window sills
- uPVC windows
- Aluminium frames
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Do you need window mastic in Balcombe Lane?
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Common reasons people contact us are:
- White mastic on grey or black frames
- Water coming in at the bottom corners of a door
- Cracked sealant at the sill ends
- Black, perished sealant on frames
Rented homes near Balcombe station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- Is VAT in the price?
- How the surfaces are prepared before sealing
- What product goes in the joint
- When the joint can take water or movement
Nearby places to Balcombe Lane
What else we do in Balcombe Lane
What happens if it’s left?
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Around Balcombe Lane, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What you get with us
- Quality sealants from Arbo and Everbuild
- 20+ years of sealant experience
- Colour agreed with you before we start
- A choice of colours where the product allows
Read how sealant jobs are priced and customer reviews.
Balcombe Lane homes and the weather
With historic houses such as Tyes Place (about 3 miles south-west) nearby, there’s older building stock in the area around Balcombe Lane as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to The Parish Church of St Mary include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. If you look after a building such as Balcombe CofE Controlled Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Balcombe Lane is about 4 miles south-east of Crawley, in West Sussex. From the centre of Balcombe Lane to the outskirts, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 371 places in West Sussex are on our list.
Work in RH17 is quoted and booked the same way as anywhere else. We also cover the places around Balcombe Lane: Balcombe (1 mile south), Worth Abbey (2 miles north-east), Furnace Green (2 miles north-west), Pease Pottage (3 miles west) and Staplefield (3 miles south-west). Within a short drive, we also cover Crawley (4 miles north-west), Horsham (8 miles west), Haywards Heath (5 miles south), Burgess Hill (8 miles south), East Grinstead (6 miles north-east) and Broadfield (4 miles north-west).
Around Balcombe Lane
Locally, jobs take us to homes and businesses close to Oriel High School. The closest station to Balcombe Lane is Balcombe station, about 1.3 miles south of the centre. Well-known places in the area include Crawley Museum (3.9 miles north-west) and Waterbury Castle (4.8 miles south-east). For a walk, there’s Blunts Wood and Paiges Meadow and Tilgate Lake.
Questions from Balcombe Lane
Can you do window mastic in Balcombe Lane?
Yes. We work across London and the South East, and Balcombe Lane is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Can you help a landlord with a rental near Balcombe station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
What does window mastic cost?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or drop us an email with a short description of the job.
Do you guarantee window mastic?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
How it works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It generally takes a few hours for a handful of frames, longer for a whole house. In a small place like Balcombe Lane, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
How to prepare
- Let us know about parking restrictions
- Mention any tricky access
- Mention if the joints have been sealed before
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
For landlords and businesses
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 be quoted together.
For anyone letting property in or around Balcombe Lane, several properties can go on one quote. Send us the addresses and the work at each.