East Sussex · England
Window Mastic in Langney
Window and door frames in Langney need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Water coming in at the bottom corners of a door
- Mastic that has split away from the wall
- Gaps where the sill meets the wall
Window mastic for homes and businesses in Langney
Around Langney we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on patio & French doors, uPVC windows and aluminium frames, and common reasons people get in touch are mastic that has split away from the wall and gaps between the frame and the inside reveal.
Houses in smaller places like Langney can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That is hard on the mastic around frames and sills.
Big or small, you get the same 12-month guarantee.
- Place
- Langney (BN23)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
What else we do in Langney
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Langney, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Signs you need window mastic in Langney
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Any of these means the joints need attention:
- Gaps left after new windows were fitted
- Gaps where the sill meets the wall
- Damp patches on the reveal after heavy rain
- Cracked or shrunken mastic around the frame
For site and facilities teams at buildings such as Langney Primary Academy, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- How long the guarantee is
- Are they insured?
- What happens if the job turns out different
- What product goes in the joint
Questions from Langney
Can you help a landlord with a rental near Pevensey & Westham station?
Yes. We work for letting agents and landlords as well as householders. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Does living near the coast affect window mastic in Langney?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
How to look after the new joints
So the new joints stay in good condition:
- Make sure the drainage slots are not blocked
- Walk round the house once a year and look at the joints
- Clean frames with a soft cloth and soapy water
- Keep paint off silicone joints
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
What window mastic looks like in Langney
Langney is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Pevensey & Westham station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to St. Richard include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Langney is about 2 miles north-east of Eastbourne, in East Sussex. Our applicators cover window mastic for homes and businesses in Langney, as part of our work across East Sussex. Across East Sussex, we cover 289 places, and Langney is one of them. Brighton is on our list too, about 20 miles from Langney.
Postcode districts we cover here for window mastic: BN23. Local streets include Priory Road, Priory Lane and Pembury Road. Nearby, we also carry out window mastic in Westham (1 mile north), Pevensey (2 miles north-east), Jenkins' Green (2 miles north), Pevensey Bay (2 miles north-east) and Normans' Bay (4 miles north-east). Larger places within reach include Hastings (12 miles north-east), Bexhill-on-Sea (7 miles north-east), Seaford (9 miles west), Lewes (14 miles west), Hailsham (5 miles north-west) and St Leonards (11 miles east).
Landmarks near Langney
We work in homes and buildings around The Lodge pub, Princes Park and Bishop Bell School. Langney’s nearest station is Pevensey & Westham station, about 1.1 miles north-east of the centre. A little further out are Eastbourne District General Hospital (2.3 miles south-west) and Pevensey Castle (1.5 miles north-east). For a walk, there’s Combe Hill.
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Rotten timber, which needs a joiner first
- Damp problems in the wall away from the window
- A sash or casement that won’t close properly
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before booking.
Surfaces we seal
- Aluminium frames
- uPVC windows
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a morning for a couple of windows and a door. For a job in Langney, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Read more
What affects the quote in Langney
We quote each job individually. These are the things that affect it:
- The old material and how stubborn it is
- Working hours on commercial sites
- The product the joint needs
- Any mould that needs treating
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and send you a clear quote before work begins.
What we need to know
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- Roughly how big the job is
- How we’d reach the joints
- Where the property is
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.