West Sussex · England
Window & door mastic in Earnley, West Sussex
Our applicators work in Earnley on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Leaking joints at the ends of sills
- Mastic that’s falling out in pieces
- Rain getting in at the frame or under the sill
Window mastic for homes and businesses in Earnley
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty. Where the air is getting in through the window itself, we will say so. If you are dealing with cracked or shrunken mastic around the frame and damp patches on the reveal after heavy rain, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Earnley is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Every job is covered by a 12-month guarantee.
- Where
- Earnley (PO20)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Keep timber frames painted
- Check the mastic once a year
- Ventilate rooms so frames do not stay wet inside
- Avoid harsh chemicals near the mastic
A yearly look round the frames is enough. Small splits are simple to catch before they leak.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Landlord and commercial work in Earnley
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
Earnley: your questions answered
Does living near the coast affect window mastic in Earnley?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Is Earnley within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Do you work on first-floor windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Why deal with it now?
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we will tell you. Where a wall is exposed, as many are in small places like Earnley, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why choose Mr Mastic in Earnley
- Any old sealant cut out fully, not covered over
- A choice of colours where the product allows
- Sealant colour chosen to suit
- Every job guaranteed for a year
Take a look at our cost guide and what customers say.
Signs you need window mastic in Earnley
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
Common reasons people contact us are:
- Gaps left after new windows were fitted
- Sealant in the wrong colour for the frame
- Whistling draughts around closed windows
- Mastic that’s falling out in pieces
Homes close to Earnley Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- How the colour is chosen
- Is the old sealant removed completely?
- What guarantee comes with the work
- When the joint can take water or movement
Places near Earnley
Other services in Earnley
What affects the cost of window mastic
For a quick quote, just ask. What matters most is:
- The number and length of the joints
- How many rooms, windows or areas are involved
- When we can work, for business premises
- Any mould that needs treating
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually. Just ring 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Windows and doors in Earnley
Earnley is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. 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.
Managing a site like East Wittering Community Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Earnley is about 3 miles north-west of Selsey, in West Sussex. From the centre of Earnley to the outskirts, we cover window mastic for every kind of property. Our West Sussex coverage runs to 371 places, and Earnley is one of them. Portsmouth is on our list too, around 11 miles away.
Jobs for window mastic in PO20 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Earnley Manor Close, Bookers Lane and Drove Lane or anywhere close by, we can help. Nearby, we also carry out window mastic in East Wittering (1 mile west), Almodington (1 mile north-east), Somerley (1 mile north), Shipton Green (2 miles north) and Birdham (2 miles north). Larger places within reach include Bognor Regis (7 miles east), Chichester (6 miles north-east), Selsey (3 miles south-east), Littlehampton (14 miles east), Emsworth (7 miles north-west) and Rustington (15 miles east).
Local landmarks in Earnley
Other landmarks nearby include Selsey Lifeboat Museum (3.9 miles south-east). Open spaces near Earnley include Pilsey Island.
What happens on the day
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. In a small place like Earnley, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Before we arrive
- Clear the area around the work
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
Related advice
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.