West Sussex · England
Almodington Window Mastic
We cover Almodington for 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.
- Black, perished sealant on frames
- White mastic on grey or black frames
- Rain getting in at the frame or under the sill
How we handle window mastic in Almodington
The new joint does not have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. Typical jobs include whistling draughts around closed windows and mastic that’s falling out in pieces, on timber windows & doors, window sills and patio & French doors.
Outdoor sealant needs dry, clean surfaces, so work on frames around Almodington is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Place
- Almodington (PO20)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for window mastic
We quote each job individually. These are the things that affect it:
- The type of sealant required
- Access and height
- Whether there’s mould to deal with
- The number and length of the joints
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
What to tell us for a quote
What to tell us when you ask for a quote:
- Whether it has been sealed before
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
If you are in Almodington and need window mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Places near Almodington
Also in Almodington
Why act early in Almodington
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In a small place like Almodington, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
Why Almodington customers choose us
- Approved under the ARBOMaster scheme
- You choose the colour before work begins
- 20+ years of sealant experience
- Homes, businesses and hotels
Take a look at what affects the cost or customer reviews.
What the job involves on each surface
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. We will point out any rot we find, as that is a job for a joiner.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Work for landlords, hotels and businesses
For anyone letting property in or around Almodington, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Landlords and agents in Almodington can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
What window mastic looks like in Almodington
Almodington is within about 3 miles of 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. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Chichester station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you look after a building such as Birdham CE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Almodington is about 4 miles north-west of Selsey, in West Sussex. For window mastic in and around Almodington, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover West Sussex. Across West Sussex, we cover 371 places, Almodington among them. Our Portsmouth page covers work nearby (11 miles or so).
All of PO20 is within our area for window mastic. Window mastic is available to properties on Second Avenue, Batchmere Road and Third Avenue. Nearby, we also carry out window mastic in Somerley (1 mile north-west), Earnley (1 mile south-west), Birdham (1 mile north), Highleigh (1 mile east) and Shipton Green (2 miles north-west). Within a short drive, we also cover Bognor Regis (6 miles east), Chichester (5 miles north-east), Selsey (4 miles south-east), Littlehampton (13 miles east), Emsworth (7 miles north-west) and Rustington (14 miles east).
Local landmarks in Almodington
The closest station to Almodington is Chichester station, about 4.2 miles north-east of the centre. Nearby you will also find Chichester Castle (4.9 miles north-east) and St Richard's Hospital (5.2 miles north-east). Not far away are Pilsey Island.
Your questions about window mastic in Almodington
Do you cover smaller places like Almodington?
Yes, Almodington is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Does the coastal weather in Almodington affect outside sealant?
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.
Do you have sealant for grey or black windows?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
Is the work guaranteed?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before we start.
What we do, step by step
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. Somewhere like Almodington 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.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry, 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.
How to prepare
- Clear the area around the work
- Let us know about parking restrictions
- Mention if the joints have been sealed before
Get a quote
We quote each job on its own. Just ring 0345 464 0079 or send us an email with the details.
Related advice
When it is not the sealant
Before booking, it’s worth knowing the limits too:
- Penetrating damp from a failed cavity tray or render
- Soft or decayed wood in the frame
- Condensation trapped between the panes
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in Almodington
- Patio & French doors
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
- uPVC windows
What we’re called out for in Almodington
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
People generally contact us after spotting something like this:
- Rain getting in at the frame or under the sill
- Cold air getting in at the frame edge
- Gaps between the frame and the inside reveal
- A bead that does not match the frame
For an older house near a landmark such as Earnley Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- Is the old sealant removed completely?
- How long the guarantee is
- Who turns up on the day
- What the cure time is
