East Sussex · England
Window Mastic in Lower Dicker
Window mastic in Lower Dicker from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Old mastic that has gone black or come away
- White mastic on grey or black frames
- Gaps left after new windows were fitted
Window mastic for homes and businesses in Lower Dicker
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you’re dealing with mastic that’s falling out in pieces and rushed sealant from a window installation, we can put it right, whatever the surface.
In a village or hamlet like Lower Dicker, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Our work is backed for twelve months, in Lower Dicker and everywhere else we cover.
- Place
- Lower Dicker (BN27)
- Region
- East Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Keep paint and stain on wooden frames in good order
- Don’t aim a pressure washer at the joints
- Keep solvents and bleach off the sealant
- Keep paint off silicone joints
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Landlords, agents and businesses in Lower Dicker
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Can I do it myself?
If you are 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 doesn’t work out, we can still put it right.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Towns and villages near Lower Dicker
More services for Lower Dicker
Common problems we fix in Lower Dicker
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
It’s worth asking for a quote if you see:
- Draughty joints inside around the window
- Gaps left after new windows were fitted
- Hard, cracked sealant around windows
- Cold air getting in at the frame edge
For an older house near a landmark such as Zoar Strict Baptist Chapel, the joint between an old wall and a newer frame is usually the first place rain gets in.
Questions to ask before you book
- What insurance they hold
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
- How long to leave it before use
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house. In a small place like Lower Dicker, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
- Clear the area around the work
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work and give you a clear quote.
Related advice
Lower Dicker questions
I let a flat near Berwick (Sussex) station. Can you help?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Is Lower Dicker in your area for window mastic?
Yes. Our work covers London and the South East, and Lower Dicker is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Will new mastic stop draughts?
In many cases. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint before we leave.
Can you do upstairs windows?
Yes, where they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Where do you work from?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
Can new sealant go over the old?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Why act early in Lower Dicker
The work is quick compared with the damage it prevents: the visit takes a few hours for a few frames, or a day or more for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Older cottages and farmhouses around Lower Dicker can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Call for a quick quote and we’ll explain what it covers.
Why Lower Dicker clients choose us
- White, clear, grey or coloured to suit, where the product allows
- Any old sealant cut out fully, not covered over
- Arbo and Everbuild products
- We agree the colour with you first
Take a look at what affects the cost or customer reviews.
Frames and glazing around Lower Dicker
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Horselunges Manor (about 1.2 miles east) are a reminder that the area around Lower Dicker 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.
If you let a flat or house near Berwick (Sussex) station, renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as Hellingly Community Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Lower Dicker is about 2 miles north-west of Hailsham, in East Sussex. For window mastic in and around Lower Dicker, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover East Sussex. Our area takes in 289 places across East Sussex. There’s also a page for Brighton, roughly 16 miles from Lower Dicker.
Jobs for window mastic in BN27 works the same way as everywhere else we cover. Local streets include Hackhurst Lane, Diamond Drive and Court Lodge Close, and we cover them all. Neighbouring places we cover for window mastic include Lower Horsebridge (1 mile east), Nash Street (1 mile north-west), Tile Hurst (1 mile south-east), Upper Dicker (1 mile south-west) and Upper Horsebridge (2 miles east). We also work in nearby towns such as Eastbourne (7 miles south-east), Hastings (15 miles east), Bexhill-on-Sea (11 miles east), Seaford (9 miles south-west), Lewes (9 miles west) and Crowborough (12 miles north).
Around Lower Dicker
In Lower Dicker, that means homes and buildings near Hailsham Community College and Bede's Prep School and the streets around them. Lower Dicker’s nearest station is Berwick (Sussex) station, roughly 3.9 miles south-west. Nearby you’ll also find Sussex Farm Museum (3.5 miles north) and Hellingly Hospital Railway (1.8 miles east).
What we can’t put right
Before you book, it’s worth knowing the limits too:
- Damp problems in the wall away from the window
- A frame that has rotted at the joint
- Draughts through the window seals rather than the frame
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Lower Dicker
- Window sills
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Patio & French doors
- Composite doors