Hampshire · England
Sand Mastic in Hatherden
We cover Hatherden for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Crumbling sand mastic round a window
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
How we handle sand mastic in Hatherden
On many period windows, sand mastic looks right and suits the building. Newer frames usually get a flexible sealant instead and we’ll explain which is best for yours. We work on stone surrounds, brick reveals and tenement windows, and people most often call us about silicone on a period window that looks wrong and tired mastic found when preparing windows for paint.
Homes in small places like Hatherden often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You’re 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.
- Where
- Hatherden (SP11)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Your questions about sand mastic in Hatherden
Do you cover Hatherden for sand mastic?
Yes. Our work covers London and the South East, and Hatherden is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we’ll send you a clear quote.
Can you help a landlord with a rental near Andover station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
What guarantee comes with the work?
All our work has a one-year guarantee, and we’re fully insured.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
What the job involves on each surface
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Towns and villages near Hatherden
What else we do in Hatherden
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Do not run silicone over sand mastic
- Inspect the joints round the windows every year or so
- Renew mastic before redecorating the windows
- Ask us before painting near the mastic
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
How the visit works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before work begins. The work generally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Hatherden, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Advice
Windows and doors in Hatherden
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Christchurch, the joint between an old wall and a newer frame is normally the first place rain gets in. If you look after a building such as Hatherden Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Hatherden is about 3 miles north of Andover, in Hampshire. From the centre of Hatherden to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Hampshire, we cover 683 places, Hatherden among them. You can also see our page for Southampton, roughly 24 miles from Hatherden.
Here we cover the SP11 postcode area for sand mastic. If you need sand mastic at a property on Hatherden Lane, The Close and Hatchet Lane or a nearby road, our applicators can take on the job. If you are just outside Hatherden, we cover Clanville (1 mile west), Foxcotte (2 miles south), Tangley (2 miles north-west), Penton Mewsey (2 miles south-west) and Charlton (2 miles south). Further out, we also cover Andover (3 miles south), Hyde (15 miles south-east), Tidworth (7 miles west), Weeke (15 miles south-east), Ludgershall (5 miles west) and Whitchurch (8 miles east).
Around Hatherden
Around Hatherden, our work takes us to homes and buildings near The Hare & Hounds pub and Harrow Way Community School. For rail, the closest station is Andover station, about 2.9 miles south of the centre. Well-known places in the area include Andover War Memorial Hospital (2.6 miles south) and Andover Museum (3.2 miles south-east). The countryside around Hatherden includes Mill Lake and Anton Lakes.
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Timber that has rotted
- Cracked or broken glass
- Damaged stone surrounds
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Brick reveals
- Period & listed homes
- Stone surrounds
- Timber door frames
- Tenement windows
- Sash and case windows
Signs you need sand mastic in Hatherden
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
Any of these means the joints need attention:
- Mastic round period door frames that has failed
- Mastic that needs renewing before redecorating
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
Letting a property close to Andover station? Then any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- Whether the sealant suits the joint
- The length of the guarantee
- Whether VAT is included
- How long to leave it before use
Leave it or put it right?
New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Where a wall is exposed, as many are in small places like Hatherden, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- Any old sealant cut out fully, not covered over
- 20+ years of sealant experience
- Rated 4.9 stars on Google
- Arbo and Everbuild products
Take a look at our cost guide and what customers say.