Hampshire · England
Sand mastic for sash & case windows in Langley, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Langley and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Modern sealant on a period surround
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
What we are called out for in Langley
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they generally need raking out.
The most common problems we see are:
- Mastic round period door frames that has failed
- Open joints round the window box
- Wind and rain getting in round a sash window
- Failed mastic on an exposed elevation
For an older house near a landmark such as St Francis, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- How long the guarantee is
- Whether they’re fully insured
- How hidden problems are handled
- Who turns up on the day
Sand mastic in Langley, done properly
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it and we’ll advise if you’re redecorating. If you have draughty sash windows at the surround and tired mastic found when preparing windows for paint, we can put it right, on tenement windows, stone surrounds and brick reveals alike.
Around Langley, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
A 12-month guarantee comes as standard, so you are covered after we have gone.
- Where
- Langley (SO45)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Sand mastic in Langley: local notes
Langley is within about 2 miles of 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Blackfield Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Hamble station, any sash windows need sound mastic to keep draughts and rain out.
Langley is about 4 miles south of Hythe, in Hampshire. If you need sand mastic in Langley, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base. Langley is one of 683 towns and villages in Hampshire we cover for sand mastic. There’s also a page for Southampton, about 8 miles away.
Here we cover the SO45 postcode area for sand mastic. If you need sand mastic at a property on Chalewood Road, Hursley Drive and Bernwood Grove or a nearby road, we can help. If you’re just outside Langley, we cover Blackfield (1 mile north), Roughdown (1 mile north-west), Holbury (1 mile north), Stanswood (1 mile east) and Sprat's Down (1 mile east). Larger places within reach include Gosport (10 miles east), Eastleigh (11 miles north), Fareham (8 miles east), Totton (10 miles north-west), Chandler's Ford (12 miles north) and Hedge End (8 miles north-east).
Landmarks near Langley
We work in homes and buildings around The New Forest Academy. The closest station to Langley is Hamble station, roughly 4.7 miles north-east. Other landmarks nearby include Coldeast (5.8 miles north-east) and Beaulieu Abbey And Display Of Monastic Life (3.7 miles west). The countryside around Langley includes Mill Hill and Mercury Marshes.
Towns and villages near Langley
Other services in Langley
What affects the quote in Langley
We do not publish a price list. What we look at:
- The product the joint needs
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- The number and length of the joints
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
Helping us quote
To make quoting easier, please include:
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- The type of property
- A few photos by email, if you can
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
When something else is needed
We won’t take on work that will not last, so here’s what sealant can’t put right:
- Timber that has rotted
- Broken panes
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Langley
- Timber door frames
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
- Period & listed homes
Langley: your questions answered
I let a flat near Hamble station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Will you come out to Langley?
Yes. Langley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How long does sand mastic take?
That depends on the amount of work, but most jobs take anything from a few hours to a full day, depending on how many windows. We will tell you when we quote.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
How long does sand mastic take to harden?
It takes a while. It skins first and hardens fully later, and we will tell you what to expect.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or email us.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint.
What we do, step by step
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to a full day, depending on how many windows. In a small place like Langley, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or send us an email.
Advice
Why deal with it now?
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Older cottages and farmhouses around Langley can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Langley
- Anti-fungal silicone where joints get wet
- More than 20 years in sealant work
- Tidy, careful work
- Domestic, commercial and hotel work
Read our cost guide and customer reviews.
How the job changes by surface
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we’ll confirm access.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
Landlord and commercial work in Langley
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 that we can handle for you.
If you manage several properties in or around Langley, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.