Isle of Wight · England
Afton Window Mastic
Window and door frames in Afton need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Hard, cracked sealant around windows
- Damp patches on the reveal after heavy rain
- Gaps where the sill meets the wall
About our window mastic in Afton
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. Typical jobs include draughty joints inside around the window and cracked or shrunken mastic around the frame, across composite doors, uPVC windows and window sills.
Mastic can only go onto a dry, clean joint, so window work in Afton is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Your job is guaranteed for a year, as with all our work.
- Location
- Afton (PO40)
- Region
- Isle of Wight
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Afton: your questions answered
Will you come out to Afton?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Does living near the coast affect window mastic in Afton?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
What does window mastic cost?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email and let us know what needs doing and where.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
What we do, step by step
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a morning for a couple of windows and a door. For a village or hamlet like Afton, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
- Plan for the work area to be out of bounds to pets and children
How to get a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.
Read more
Do you need window mastic in Afton?
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
Keep an eye out for these signs:
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Sealant in the wrong colour for the frame
- Cracked sealant at the sill ends
In the older streets around St. Agnes' Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- Who turns up on the day
- Whether the sealant suits the joint
- Whether VAT is included
- What happens if the job turns out different
Windows and doors in Afton
Afton 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. Historic houses like Mottistone Manor (about 3.9 miles south-east) are a reminder that the area around Afton has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as All Saints Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Afton is about 6 miles south of Lymington, in the Isle of Wight. Jobs in Afton get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our the Isle of Wight coverage runs to 125 places, and Afton is one of them. For nearby work, see our Southampton page, about 18 miles away.
Work in PO40 works the same way as everywhere else we cover. Local streets include Bay Road, Afton Road and Manor Road. Nearby, we also carry out window mastic in Afton Park (1 mile east), Easton (1 mile west), Freshwater (1 mile north-west), Norton Green (1 mile north) and Colwell (1 mile north-west). Larger places within reach include Newport (9 miles east), Ryde (15 miles east), Cowes (10 miles north-east), Sandown (15 miles east), Shanklin (15 miles east) and Ventnor (14 miles south-east). For island and remote addresses, the job takes a little more planning.
Local landmarks in Afton
Typical jobs here are in homes near The Red Lion pub. Other landmarks nearby include Dimbola Museum And Galleries (less than half a mile south-west) and Yarmouth Castle (2.2 miles north). Open spaces near Afton include Afton Down and Lymington and Keyhaven Marshes Nature Reserve.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Clear any debris from frame drain holes
- Wash the frames with mild soapy water
- Keep solvents and bleach off the sealant
- Do not aim a pressure washer at the joints
Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Places near Afton
More services for Afton
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Different surfaces, different methods
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
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.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
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.
Why act early in Afton
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Older cottages and farmhouses around Afton can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- More than 20 years in sealant work
- Colour agreed with you before any work starts
- We never seal over old sealant
- Quality sealants from Arbo and Everbuild
Read our cost guide or what customers say.