West Sussex · England
Window Mastic in East Lavant
Professional window mastic in and around East Lavant, with old sealant always removed completely and a 12-month guarantee.
- Rain getting in at the frame or under the sill
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
About our window mastic in East Lavant
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you’re dealing with gaps left after new windows were fitted and hard, cracked sealant around windows, we can put it right, whatever the surface.
Somewhere as small as East Lavant, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Big or small, you get the same 12-month guarantee in East Lavant and across West Sussex.
- Where
- East Lavant (PO18)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Questions from East Lavant
I let a flat near Chichester station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover East Lavant for window mastic?
Yes, East Lavant is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
How long before the joint can be used?
It depends on the product and the temperature. Before we leave, we’ll tell you the cure time.
How many windows can you do in a day?
It depends on access, the old mastic and the size of the frames. You’ll know the timing when we quote.
Can you reach windows above the ground floor?
Yes, in most cases. We plan safe access before the job, so mention the height and anything in the way.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
How much does window mastic cost in East Lavant?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
Frames and glazing around East Lavant
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. With historic houses such as Goodwood House (about 1.5 miles east) nearby, there’s older building stock in the area around East Lavant as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Lavant CofE Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Chichester station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
East Lavant is about 2 miles north of Chichester, in West Sussex. From the centre of East Lavant to the outskirts, window mastic is available for homes and businesses alike. East Lavant is one of 371 places in West Sussex we cover. There’s also a page for Portsmouth, about 14 miles away.
Our applicators cover all of the PO18 postcode area for window mastic. We cover properties on Pook Lane, Fordwater Road and Shop Lane. We also cover the places around East Lavant: Mid Lavant (1 mile north-west), Westerton (2 miles south-east), Westhampnett (2 miles south-east), Waterbeach (2 miles east) and Maudlin (2 miles south-east). We also work in nearby towns such as Bognor Regis (7 miles south-east), Selsey (9 miles south), Littlehampton (11 miles east), Emsworth (7 miles west), Rustington (12 miles east) and Storrington (15 miles east).
Around East Lavant
Around East Lavant, our work takes us to homes and buildings near The Royal Oak Public House and Bishop Luffa School, among other places. The nearest railway station is Chichester station, about 2.5 miles south of the centre. Other landmarks nearby include Chichester Castle (2 miles south) and The Chichester City Museum (2.1 miles south). Not far away are Stoke Down and Kingley Vale National Nature Reserve.
How the visit works
We keep the work tidy and contained to the joints we’re treating. Expect the work to take a morning for a couple of windows and a door. Somewhere as small as East Lavant, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or email us.
Read more
Do you need window mastic in East Lavant?
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
Most people get in touch after spotting one of these:
- Whistling draughts around closed windows
- Gaps where the sill meets the wall
- Sealant in the wrong colour for the frame
- Draughty joints inside around the window
If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- How long the guarantee is
- Are they insured?
- Who turns up on the day
- How the surfaces are prepared before sealing
Towns and villages near East Lavant
Other services in East Lavant
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
- Draughts through the window seals rather than the frame
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Composite doors
- Timber windows & doors
- Window sills
- Aluminium frames
- uPVC windows
- Patio & French doors
Landlords, agents and businesses in East Lavant
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
For anyone letting property in or around East Lavant, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
What happens if it’s left?
The work is quick compared with the damage it prevents: it 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. Where a wall is exposed, as many are in small places like East Lavant, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why East Lavant clients choose us
- Quality sealants from Arbo and Everbuild
- We agree the colour with you first
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
See our cost guide or our reviews.
Different surfaces, different methods
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.