Southampton · England
Sand mastic for sash & case windows in Sholing, Southampton
Sand mastic in Sholing from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Modern sealant on a period surround
- Gaps round a timber door in stone or brick
- Mastic worn away on windows facing the weather
Sholing questions
Does living near the coast affect sand mastic in Sholing?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you help a landlord with a rental near Sholing station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll talk you through it.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that normally means someone at home.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Period homes often look best with sand mastic, and modern sealants suit newer frames.
Where are you based?
We work from Crawley. Our applicators cover Sholing, along with the rest of our area.
How do I get a quote for sand mastic in Sholing?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
How long will you be here?
Most jobs take anything from a few hours to a full day, depending on how many windows, including the preparation. We’ll confirm how long when we quote.
About our sand mastic in Sholing
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. Common call-outs are for cement or filler used on old window joints that has cracked and old sand mastic that has cracked, crumbled or fallen out, on stone surrounds, brick reveals and sash and case windows.
Around Sholing, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Place
- Sholing (SO19)
- Wider area
- Southampton
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Sholing
What else we do in Sholing
The process
Before we leave, we go over the finished joints with you. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. Parking around Sholing is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- 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.
Getting ready for the visit
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
If you’re in Sholing and need sand mastic, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Read more
Leave it or put it right?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. In an older home around Sholing, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
Doing several joints on one visit usually makes better use of the time than several visits. We will give you a clear quote for the lot.
Why book with us
- Any old sealant cut out fully, not covered over
- Domestic, commercial and hotel work
- 20+ years of sealant experience
- Every job guaranteed for a year
Read what affects the cost or what customers say.
How we quote for sand mastic
For a quick quote, just ask. The main things that affect it are:
- The product the joint needs
- How much there is to do
- How easy the joints are to reach
- When we can work, for business premises
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first.
What to tell us for a quote
When you call or email, it’s useful to know:
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Windows and doors in Sholing
Sholing is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. 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.
For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Sholing station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Sholing is about 2 miles south-east of Southampton, in Southampton. Wherever you are in the SO19 postcode area, we cover sand mastic for homes and businesses. Our Southampton coverage runs to 40 places, and Sholing is one of them.
Postcode districts we cover here for sand mastic: SO19. You’ll find streets such as Bay Road, Ashby Road and Loane Road, all of which we cover. Main roads around Sholing include the A3025, which makes travel easy. Other places close to Sholing include Itchen (1 mile west), Thornhill (1 mile north-east), Bitterne (1 mile north), Peartree Green (1 mile west) and Northam (1 mile north-west). Further out, we also cover Shirley (4 miles north-west), Regents Park (4 miles west), Maybush (5 miles north-west), Coxford (4 miles north-west), Freemantle (3 miles west) and Lordswood (4 miles north-west). Sholing is one of the larger places we cover in Southampton.
Near you in Sholing
Around Sholing, our work takes us to homes and buildings near The Red Lion pub, Woolston School and Westwood Woodland Park. Sholing’s nearest station is Sholing station, about 0.5 miles south-west of the centre. Nearby you will also find Netley Castle (1.6 miles south) and Marlands Shopping Centre (2.3 miles west). Green spaces nearby include Netley Common.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
Signs you need sand mastic in Sholing
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
If you can see any of these, it’s time to have the joints looked at:
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
- Open joints round the window box
- Mastic that needs renewing before redecorating
Schools such as St Monica Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- How long to leave it before use
- Who turns up on the day
- Whether all the old sealant comes out first
- The length of the guarantee
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Planning or listed building consent (your local planning authority decides)
- Sashes that rattle, stick or won’t open
- Masonry that needs repairing
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
What we seal
- Sash and case windows
- Stone surrounds
- Tenement windows
- Timber door frames
- Brick reveals
- Period & listed homes
How the job changes by surface
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.