Isle of Wight · England

Sand Mastic in Brighstone

We cover Brighstone for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.

  • Mastic round period door frames that has failed
  • Weathered mastic on the most exposed windows
  • Patchy fillers round a sash window

Sand mastic for Brighstone homes and businesses

Sand mastic in Brighstone

We work across Brighstone renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you have gaps between timber frames and stone or brick and crumbling sand mastic round a window, we can put it right.

Homes in small places like Brighstone often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

Our work is backed for twelve months, in Brighstone and everywhere else we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Brighstone (PO30)
Wider area
Isle of Wight
Guarantee
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

Common problems we fix in Brighstone

Some old mastic was never deep enough. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.

People generally contact us when they notice one of these:

  • Crumbling sand mastic round a window
  • Modern sealant on a period surround
  • Mastic that needs renewing before redecorating
  • Gaps where the frame meets the masonry

If you look after a building such as Brighstone Church of England Aided Primary School, its window and door frames need their mastic kept sound, just like a home’s.

Before you book anyone

  • Whether all the old sealant comes out first
  • Whether you can choose the colour
  • What preparation is included
  • What the quote includes, VAT included or not

Our hiring checklist

For landlords and businesses

Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

What affects the cost of sand mastic

Every job gets its own quote. These are the things that affect it:

  • The size of the job
  • Any mould that needs treating
  • Whether the work is at height
  • Any working-time requirements on site

We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

What we need to know

There’s no need for technical detail. It helps if you can tell us:

  • Where the job is, and your postcode
  • Pictures of the joints, sent by email
  • Whether it’s a home or a business
  • Any previous sealing or DIY work

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.

Surface by surface

Brick reveals

We rake out the old mastic and pack deep voids before pointing.

Stone surrounds

Sand mastic sits naturally against stone. It finishes to look like part of the surround.

Brighstone: your questions answered

Do you cover Brighstone for sand mastic?

Yes, Brighstone is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.

Does living near the coast affect sand mastic in Brighstone?

Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.

What do you put in the joint?

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 insured?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area.

Where do you work from?

We are based in Crawley, and we work across South East England, London and Scotland.

Can I choose the sealant colour?

Generally, yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.

Will there be a smell?

There can be a smell while the sealant cures. Opening a window helps.

Sand mastic in Brighstone: local notes

Brighstone is within about 1 mile of 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. The South East is one of 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. Mary's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Brighstone is about 6 miles south-west of Newport, in the Isle of Wight. We provide sand mastic to homes and businesses in Brighstone, as part of our work across the Isle of Wight. Our area takes in 125 places across the Isle of Wight, from the larger towns to small villages. You can also see our page for Portsmouth, about 18 miles away.

Jobs for sand mastic in PO30 works the same way as everywhere else we cover. You will find streets such as Main Road, Meadows Close and Wilberforce Road, all of which we cover. Brighstone is on the B3399, which makes it straightforward to reach. If you are just outside Brighstone, we cover Moortown (1 mile north), Thorncross (1 mile south-east), Shorwell (2 miles east), Little Atherfield (3 miles south-east) and Atherfield Green (3 miles south-east). We also work in nearby towns such as Newport (6 miles north-east), Ryde (12 miles north-east), Cowes (9 miles north-east), Sandown (10 miles east), Shanklin (10 miles east) and Ventnor (9 miles east). Island and remote addresses take a little more planning, so please mention your location when you call 0345 464 0079 or drop us an email.

Near you in Brighstone

We work in homes and buildings around The Three Bishops pub. A little further out are Carisbrooke Castle (4.8 miles north-east) and Whitecroft Hospital (4.7 miles north-east). Green spaces nearby include Brighstone Down.

Map of Brighstone © OpenStreetMap contributors

Should I try it myself first?

If you are 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 doesn’t work out, we can still put it right.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

When it is not the sealant

Before booking, it’s worth knowing the limits too:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Sashes that rattle, stick or won’t open
  • Putty and glazing repairs

If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.

Surfaces we seal

  • Brick reveals
  • Stone surrounds
  • Period & listed homes
  • Tenement windows
  • Sash and case windows
  • Timber door frames

How it works

On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. In a small place like Brighstone, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check each window surround and the condition of the joint.
  2. The joint is raked out and cleaned.
  3. We fill deep gaps so the new mastic isn’t too thick.
  4. We point the joint with sand mastic by hand.
  5. We finish the mastic to a tidy line.

Preparing for the visit

  • Tell us about any water getting in
  • Clear the area around the work
  • Let us know about parking restrictions

Get a quote

For sand mastic in Brighstone, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

Get a quick quote

Advice

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job