East Sussex · England
Window & door mastic in Newick, East Sussex
We cover Newick for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Old mastic that has gone black or come away
Window mastic for homes and businesses in Newick
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. We are often asked to deal with draughty joints inside around the window and cracked or shrunken mastic around the frame, on timber windows & doors, uPVC windows and aluminium frames.
Around Newick, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Location
- Newick (BN8)
- Wider area
- East Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
On the day, we look over the joints with you first. Surfaces next to the work are protected before we start. Most jobs take most of a day for a typical house, less for a few frames. Somewhere like Newick needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Mention any tricky access
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Related advice
Honest limits
Before booking, it’s worth knowing the limits:
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
- Misting between the panes of a double-glazed unit (that needs a new unit)
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Aluminium frames
- Composite doors
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Window sills
Work for landlords, hotels 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.
Housing providers, facilities teams and property managers book us too in Newick and across East Sussex. We can quote a run of properties together, and we are fully insured for the work.
Windows and doors in Newick
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.
For an older house near a landmark such as Zion Chapel, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Uckfield station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Newick is about 4 miles west of Uckfield, in East Sussex. If you need window mastic in Newick, please ring 0345 464 0079 or email us for a quick quote. We cover East Sussex from our Crawley base. Newick is one of 289 places in East Sussex we cover. Brighton is on our list too, about 12 miles from Newick.
Our applicators cover all of the BN8 postcode area for window mastic and the streets around it. Local streets include High Street, Church Road and Station Road, all of which we cover. We also cover the places around Newick: Founthill (1 mile south-east), North Chailey (1 mile west), Chailey (1 mile south-west), South Street (2 miles south-west) and Down Street (3 miles north-east). We also work in nearby towns such as Seaford (14 miles south), Lewes (7 miles south), Hailsham (13 miles south-east), Crowborough (9 miles north-east), Uckfield (4 miles east) and Newhaven (12 miles south).
Near you in Newick
Typical jobs here are in homes near Sheffield Park Garden and The Royal Oak Inn, among other places. For rail, the closest station is Uckfield station, about 3.6 miles east of the centre. Nearby you’ll also find Uckfield Community Hospital (4 miles east) and Heaven Farm Museum (3.2 miles north). The countryside around Newick includes Brickfield Meadow.
How the job changes by surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match keeps the clean look.
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it, where a rigid one would crack.
Aftercare tips
A little care helps the new joints last. Our advice:
- Use gentle cleaners on frames and sealant
- Avoid blasting the frames with a pressure washer
- Keep timber frames painted
- Paint up to the joint, not over it
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Newick questions
I let a flat near Uckfield station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Newick within the area you cover?
Yes, Newick is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Do you seal inside as well as outside?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal.
Can new window sealant be painted?
Most silicone can’t be painted. Let us know beforehand, and we will use a paintable product where it suits.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What else we do in Newick
Do you need window mastic in Newick?
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, and a gap filled solid cannot flex. Backing rod sets the right depth.
If you can see any of these, it’s time to have the joints looked at:
- Cracked or shrunken mastic around the frame
- Leaking joints at the ends of sills
- Mastic that is falling out in pieces
- Cold air getting in at the frame edge
Managing a site like Newick Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
- How long the guarantee is