Hampshire · England
Soberton Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Soberton and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic worn away on windows facing the weather
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
Sand mastic in Soberton, done properly
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. If you are dealing with silicone on a period window that looks wrong and weathered mastic on the most exposed windows, we can help, on period & listed homes, brick reveals and sash and case windows alike.
Somewhere as small as Soberton, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Place
- Soberton (SO32)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Soberton, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- 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
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
- Clear the area around the work
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Related advice
What affects the quote in Soberton
We quote each job individually. This is what makes a difference:
- The old material and how stubborn it is
- Access and height
- The number and length of the joints
- Working hours on commercial sites
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
What to tell us when you ask for a quote:
- What’s wrong with the joints now
- Where the property is
- Whether it has been sealed before
- The rough size of the job
If you are in Soberton and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Your questions about sand mastic in Soberton
Do you cover smaller places like Soberton?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with sand mastic in Soberton?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. If you are redecorating the window, ask us first and we will advise.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels.
Are you fully insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Nearby places to Soberton
More services for Soberton
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Clear gutters so water doesn’t pour onto the windows
- Check the mastic when you check the paintwork
- Take care around the mastic when scraping paint
- Check with your local planning authority if your home is listed
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that need overhauling
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Brick reveals
- Tenement windows
- Timber door frames
- Sash and case windows
- Stone surrounds
- Period & listed homes
When to call us in Soberton
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
The problems people normally mention when they call are:
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- Failed mastic on an exposed elevation
Managing a site like Droxford Junior School? Then larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- What insurance they hold
- How the joint is cleaned and prepared
- What the cure time is
- Is the old sealant removed completely?
What the job involves on each surface
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. Sand mastic is shaped by hand to suit.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Windows and doors in Soberton
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Soberton is about 6 miles north-west of Horndean, in Hampshire. From the centre of Soberton to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Across Hampshire, we cover 683 places, Soberton among them. You can also see our page for Portsmouth, roughly 10 miles from Soberton.
Every address in SO32 is within our area for sand mastic, from the main roads to the quietest streets. We cover properties on High Street, Station Road and Long Road. We also cover Droxford (1 mile north), Brockbridge (1 mile north), Soberton Heath (2 miles south), Hill Grove (2 miles west) and Southend (2 miles south). We also work in nearby towns such as Winchester (11 miles north-west), Gosport (10 miles south), Havant (9 miles south-east), Eastleigh (9 miles west), Fareham (7 miles south-west) and Horndean (6 miles south-east).
Local landmarks in Soberton
We work in homes and buildings around White Lion Inn and the streets around them. Other landmarks nearby include Knowle Hospital (5.4 miles south-west) and Bishop's Waltham Museum (3.7 miles west). Not far away are Beacon Hill and St Clair's Meadow.