Isle of Wight · England
Sand mastic for sash & case windows in Nettlecombe, Isle of Wight
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Nettlecombe, backed by a one-year guarantee. Ask us for a quote.
- Gaps where the frame meets the masonry
- Mastic dropping out of the joint
- Draughty sash windows at the surround
Sand mastic in Nettlecombe
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. Common call-outs are for window mastic to renew ahead of painting and gaps between timber frames and stone or brick, on tenement windows, brick reveals and stone surrounds.
Around Nettlecombe, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Where
- Nettlecombe (PO38)
- Region
- Isle of Wight
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Sashes that need overhauling
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Brick reveals
- Stone surrounds
- Timber door frames
- Sash and case windows
- Period & listed homes
- Tenement windows
How we quote for sand mastic
Your quote is based on your job. We take into account:
- The size of the job
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- Working hours on commercial sites
Leaving a failed joint generally makes the job bigger, not smaller. If you’re unsure, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- Where the property is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Also in Nettlecombe
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Keep modern sealant off the mastic
- Avoid heavy scraping on the mastic joint
- Renew mastic before redecorating the windows
- Ask a joiner to look at soft timber first
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Nettlecombe, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Mention if the joints have been sealed before
- Clear items away from the joints we’re working on
- Let us know about parking restrictions
How to get a quote
Want a quote for sand mastic? Please call 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
Advice
Why it’s worth doing now in Nettlecombe
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around Nettlecombe can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- 4.9 on Google from 180+ five-star reviews
- We leave the area clean and tidy
- Domestic, commercial and hotel work
- Old sealant always removed completely
See our cost guide or our reviews.
Common problems we fix in Nettlecombe
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
Most people get in touch after spotting something like this:
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Modern sealant on a period surround
- Draughts and rain around sash boxes
Letting a property close to Shanklin station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- Whether VAT is included
- How the joint is cleaned and prepared
- Are they insured?
- Which sealant they’ll use, and why
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
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.
Frames and glazing around Nettlecombe
Nettlecombe is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Water Hydrant Opposite Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Nettlecombe is about 7 miles south of Newport, in the Isle of Wight. From the centre of Nettlecombe to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. 125 places in the Isle of Wight are on our list, from the larger towns to small villages. Portsmouth is on our list too, around 16 miles away.
Work in PO38 works the same way as everywhere else we cover. Close by, we work in Southford (1 mile north-west), Bierley (1 mile west), Wroxall (2 miles north-east), Godshill (2 miles north) and Sandford (2 miles north). Within a short drive, we also cover Newport (7 miles north), Ryde (9 miles north-east), Cowes (11 miles north), Sandown (6 miles north-east), Shanklin (4 miles north-east) and East Cowes (11 miles north). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Nettlecombe
Around Nettlecombe, our work takes us to homes and buildings near The White Horse Inn. The nearest railway station is Shanklin station, roughly 4.1 miles north-east. Nearby you will also find Longshoremans Museum (2.2 miles east) and Arthur Webster Memorial Hospital for Children (4.1 miles north-east). Open spaces near Nettlecombe include Stenbury Down.
Nettlecombe: your questions answered
Does living near the coast affect sand mastic in Nettlecombe?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Will you come out to Nettlecombe?
Yes. Nettlecombe is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in.
Can you replace silicone on a period window with sand mastic?
Normally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Is there any odour?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
When will the new mastic be hard?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.