Hampshire · England
Sand mastic for sash & case windows in Bashley, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Bashley and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Patchy fillers round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- A silicone bead on a sash window that spoils the look
What we do, step by step
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere as small as Bashley, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
- Clear the area around the work
How to get a quote
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Advice
Sand mastic in Bashley
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. If you have draughty sash windows at the surround and cracked mastic round a front door frame, we can put it right.
In a village or hamlet like Bashley, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Whatever the size of the job, you get the same one-year guarantee.
- Where
- Bashley (BH25)
- Region
- Hampshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Bashley
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. In a small place like Bashley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What it costs depends on how much there is to do, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why us?
- 180+ five-star Google reviews
- One-year guarantee on every job
- Full insurance on every job
- 20+ years of sealant experience
See our cost guide and customer reviews.
How the job changes by surface
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Avoid patching sand mastic with silicone
- Take care around the mastic when scraping paint
- Keep sills and gutters clear so water drains away
- Sort the mastic before the decorators arrive
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look rather than patching it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
More services for Bashley
Signs you need sand mastic in Bashley
Some old mastic was never deep enough. Mastic that is too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
The most common problems we see are:
- A silicone bead on a sash window that spoils the look
- Old cement repairs round a window that have failed
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
In the older streets around St John, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- Whether they seal over old material or remove it
- The length of the guarantee
Landlord and commercial work in Bashley
For anyone letting property in or around Bashley, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Sand mastic in Bashley: local notes
Bashley 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 older windows and doors, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Ballard School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to New Milton station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Bashley is in Hampshire. From the centre of Bashley to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 683 places across Hampshire. There’s also a page for Southampton, about 15 miles away.
Our applicators cover all of the BH25 postcode area for sand mastic. We cover properties on St Johns Road, Ossemsley South Drive and Bashley Road. We also cover Ossemsley (1 mile north-west), Wootton (1 mile north-west), Ashley (1 mile south-east), Tiptoe (1 mile east) and Mead End (1 mile north-east). Within a short drive, we also cover Totton (12 miles north-east), Lymington (5 miles east), Hythe (13 miles north-east), Ringwood (7 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (12 miles north-east).
What’s near Bashley
Around Bashley, our work takes us to homes and buildings near The Arnewood School, The Rising Sun pub and Tiptoe Primary School. The nearest railway station is New Milton station, about 1.3 miles south of the centre. Other landmarks nearby include Lymington New Forest Hospital (5 miles east) and Sammy Miller Motorcycle Museum (0.9 miles south-west). Not far away are Milford on Sea LNR.
Bashley: your questions answered
Will you come out to Bashley?
Yes, Bashley is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near New Milton station?
Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or send us an email with the details for a clear quote.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that generally means someone at home.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.