Hampshire · England
Sand mastic for sash & case windows in Mullenspond, Hampshire
Window and door surrounds in Mullenspond need attention? We remove the old material, prepare the joints and seal them properly.
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
- Open joints round the window box
Sand mastic in Mullenspond
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on timber door frames, sash and case windows and brick reveals, and the jobs we see most are old sand mastic that has cracked, crumbled or fallen out and a silicone bead on a sash window that spoils the look.
Outdoor sealant needs dry, clean surfaces, so work on frames around Mullenspond is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Mullenspond (SP11)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours for a single window, longer for several, depending on the amount of work. In a small place like Mullenspond, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Clear the area around the work
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Read more
When something else is needed
To be straight with you, some problems need a different trade:
- Decisions on consent for listed homes
- Timber that has rotted
- Sashes that need overhauling
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
Surfaces we seal
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
- Brick reveals
- Sash and case windows
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What affects the cost of sand mastic
There’s no set price list, because no two jobs are the same. What we look at:
- The type of sealant required
- Whether the work is at height
- The number and length of the joints
- How many areas need sealing
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- The rough size of the job
- Photos by email, if that is easy
- The type of property
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Mullenspond questions
Can you help a landlord with a rental near Grateley station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Is Mullenspond in your area for sand mastic?
Yes, Mullenspond is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They decide whether consent is needed.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How long does sand mastic take to harden?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Keep sills and gutters clear so water drains away
- Take care around the mastic when scraping paint
- Find out about consent before window work on a listed home
- Renew mastic before redecorating the windows
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
For landlords and businesses
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
When to call us in Mullenspond
Rain on the window surround works into any crack and pushes it out. Windows facing the weather tend to go first.
If you can see any of these, it’s time to have the joints looked at:
- A silicone bead on a sash window that spoils the look
- Mastic dropping out of the joint
- Mastic worn away on windows facing the weather
- Patchy fillers round a sash window
If you let a flat or house near Grateley station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Before booking anyone
- Whether all the old sealant comes out first
- The length of the guarantee
- Whether you can choose the colour
- What the cure time is
What sand mastic looks like in Mullenspond
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.
In the older streets around Church of St Nicholas, the joint between an old wall and a newer frame is normally the first place rain gets in. For site and facilities teams at buildings such as Amport Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Mullenspond is about 4 miles west of Andover, in Hampshire. For sand mastic in and around Mullenspond, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base. Mullenspond is one of 683 places in Hampshire where we work. You can also see our page for Southampton, about 22 miles away.
We cover every part of SP11 for sand mastic and the streets around it. That includes homes and businesses on Amesbury Road and Wiremead Lane and the roads around them. We also cover East Cholderton (1 mile south), Thruxton (1 mile west), Fyfield (1 mile north-west), Weyhill (1 mile north-east) and Red Post Bridge (2 miles east). We also work in nearby towns such as Winchester (15 miles south-east), Andover (4 miles east), Hyde (15 miles south-east), Tidworth (4 miles north-west), Weeke (14 miles south-east) and Stanmore (15 miles south-east).
Around Mullenspond
In Mullenspond, that means homes and buildings near White Horse Inn and the streets around them. The nearest railway station is Grateley station, roughly 3.4 miles south-west of the centre. A little further out are Ludgershall Castle (3.9 miles north-west) and Andover War Memorial Hospital (3.5 miles east). The countryside around Mullenspond includes Mill Lake and Quarley Hill.