West Sussex · England
Window Mastic in Elmer
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Elmer. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that has split away from the wall
- Mastic that’s falling out in pieces
- Damp patches on the reveal after heavy rain
How we handle window mastic in Elmer
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through. Where the air is getting in through the window itself, we will say so. We are often asked to deal with untidy mastic left by window fitters and gaps where the sill meets the wall, on patio & French doors, aluminium frames and window sills.
Homes around Elmer range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
All our work is covered by a 12-month guarantee.
- Location
- Elmer (PO22)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Elmer
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured.
Landlords and agents in Elmer can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
What happens on the day
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take a few hours for a few frames, or a day or more for a whole house. For a job in Elmer, 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.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
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What the job involves on each surface
Composite doors
An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. Those corners get the most care.
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it without cracking.
Towns and villages near Elmer
What else we do in Elmer
Window mastic in Elmer: local notes
Elmer is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near St Nicholas Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to Ford station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Elmer is about 3 miles east of Bognor Regis, in West Sussex. For window mastic in and around Elmer, please call 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover West Sussex, Elmer included. 371 places in West Sussex are on our list, large and small. You can also see our page for Portsmouth, roughly 20 miles from Elmer.
Every address in PO22 is covered for window mastic. Streets in the area include Elmer Road, Ancton Lane and East Avenue, all of which we cover. We also cover the places around Elmer: Middleton-on-Sea (1 mile west), Bilsham (1 mile north), Atherington (1 mile north-east), Flansham (2 miles north-west) and Horsemere Green (2 miles north-east). Larger places within reach include Worthing (9 miles east), Bognor Regis (3 miles west), Chichester (8 miles north-west), Selsey (9 miles south-west), Littlehampton (4 miles east) and Shoreham-by-Sea (15 miles east).
Local landmarks in Elmer
Locally, jobs take us to homes and businesses close to Felpham Community College and the streets around them. The closest station to Elmer is Ford station, roughly 2.9 miles north-east of the centre. Well-known places in the area include Bognor Regis Museum (3.1 miles west) and Bognor Regis War Memorial Hospital (2.9 miles west).
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Keep solvents and bleach off the sealant
- Air rooms to keep condensation down around windows
- Don’t paint over the silicone
- Use gentle cleaners on frames and sealant
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
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.
Leave it or put it right?
Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a smaller place like Elmer, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Why us?
- Full insurance on every job
- Every job guaranteed for a year
- Approved under the ARBOMaster scheme
- Domestic, commercial and hotel work
Take a look at what affects the cost and our reviews.
Your questions about window mastic in Elmer
Do you work for landlords with property near Ford station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is window mastic in a coastal place like Elmer any different?
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 seal inside as well as outside?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
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 and we’ll plan for it.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
When something else is needed
We won’t take on work that won’t last, so these are the limits:
- Rotten timber, which needs a joiner first
- Damp coming through the wall itself rather than the frame joint
- A door that needs adjusting, rehanging or new seals
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before you book.
What we seal
- Timber windows & doors
- Composite doors
- Aluminium frames
- Window sills
- uPVC windows
- Patio & French doors
Common problems we fix in Elmer
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
Any of these means the joints need attention:
- Cracked internal joints between frame and plaster
- Cold air getting in at the frame edge
- Sealant in the wrong colour for the frame
- Gaps where the sill meets the wall
For site and facilities teams at buildings such as Bishop Tufnell CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- Whether you can choose the colour
- Whether they seal over old material or remove it
- How much experience the applicator has
- Are they insured?