Isle of Wight · England
Sand mastic for sash & case windows in Shanklin, Isle of Wight
Sand mastic for Shanklin, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Tired mastic found when preparing windows for paint
- Patchy fillers round a sash window
- Weathered mastic on the most exposed windows
Sand mastic in Shanklin, done properly
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We are often asked to deal with wind and rain getting in round a sash window and modern sealant on a period surround, across timber door frames, stone surrounds and tenement windows.
In smaller places like Shanklin, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Shanklin (PO37, PO36)
- Wider area
- Isle of Wight
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
All our tools and materials come with us in the van. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours per window, depending on the condition of the joints. In a smaller place like Shanklin, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Clear items away from the joints we are working on
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Related advice
What we can’t put right
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Decayed frames that need repair
- Cracked or broken glass
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Period & listed homes
- Tenement windows
- Brick reveals
- Stone surrounds
- Sash and case windows
- Timber door frames
What sand mastic looks like in Shanklin
Shanklin is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as St. Paul's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Shanklin station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Shanklin is about 6 miles south of Ryde, in the Isle of Wight. From the centre of Shanklin to the outskirts, we cover sand mastic for every kind of property. 125 places in the Isle of Wight are on our list, from the larger towns to small villages. For nearby work, see our Portsmouth page.
Work in PO37 and PO36 works the same way as everywhere else we cover. Whether your property is on High Street, Church Road and Regent Street or anywhere close by, we can help. With the A3020 and A3055 close by, Shanklin is simple for us to get to for sand mastic. Neighbouring places we cover for sand mastic include Luccombe Village (1 mile south), Lake (1 mile north), Sandown (2 miles north-east), Queen's Bower (2 miles north) and Alverstone (2 miles north). Further out, we also cover Newport (7 miles north-west), Ryde (6 miles north), Cowes (10 miles north-west), Ventnor (3 miles south-west), East Cowes (10 miles north-west) and Oakfield (6 miles north). Shanklin is among the bigger towns we cover in the Isle of Wight. For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Landmarks near Shanklin
In Shanklin, that means homes and buildings near The Falcon pub and Sandown Bay Academy and the streets around them. There’s a railway station in Shanklin itself: Shanklin station. Well-known places in the area include Arthur Webster Memorial Hospital for Children (within half a mile north) and Rylstone Manor (less than half a mile south). Green spaces nearby include Alverstone Mead and St Boniface Down.
Your questions about sand mastic in Shanklin
Can you help a landlord with a rental near Shanklin station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Is Shanklin within the area you cover?
Yes, Shanklin is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They decide whether consent is needed for work to your windows.
Can you seal over the old sealant?
No, it will not last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Surface by surface
Period and listed homes
A traditional finish suits a period property.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
What affects the cost of sand mastic
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- Any mould that needs treating
- The amount of work
- The product the joint needs
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- What’s wrong with the joints now
- The type of property
- Whether it has been sealed before
- Pictures of the joints, sent by email
Need a quote? Please phone 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear quote before any work starts.
Why act early in Shanklin
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry so renewing it early protects the window. In a smaller place like Shanklin, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Why Shanklin clients choose us
- Homes, businesses and hotels
- Rated 4.9 stars on Google
- Anti-fungal sanitary silicone in wet areas
- Any old sealant cut out fully, not covered over
See what affects the cost and what customers say.
Nearby places to Shanklin
Also in Shanklin
Aftercare tips
After the cure time, these simple habits help:
- Clear gutters so water doesn’t pour onto the windows
- Take care around the mastic when scraping paint
- Plan mastic work ahead of painting
- Check with your local planning authority if your home is listed
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
When to call us in Shanklin
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
The problems people generally mention when they call are:
- Cracked mastic round a front door frame
- Mastic worn away on windows facing the weather
- Tired mastic found when preparing windows for paint
- Modern sealant on a period surround
Schools such as St Blasius Shanklin CofE Primary Academy are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- What happens if the job turns out different
- What insurance they hold
- How much experience the applicator has
- What the cure time is