Hampshire · England
Farleigh Wallop Sand Mastic
Sand mastic for Farleigh Wallop, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
About our sand mastic in Farleigh Wallop
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. If you are dealing with patchy fillers round a sash window and draughts and rain around sash boxes, we can put it right, whatever the surface.
In a village or hamlet like Farleigh Wallop, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Every job comes with our 12-month guarantee, wherever you are in Hampshire.
- Where
- Farleigh Wallop (RG25)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of sand mastic
Your quote is based on your job. We look at:
- The product the joint needs
- How easy the joints are to reach
- The size of the job
- How many rooms, windows or areas are involved
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- The address or postcode of the job
- A few photos by email, if you can
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Do you need sand mastic in Farleigh Wallop?
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
These are the problems we are asked about most:
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
- Gaps round a timber door in stone or brick
If you live in an older home near Church of St. Andrew, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- Is VAT in the price?
- How long the guarantee is
- How much experience the applicator has
- Which colour the sealant will be
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Take care around the mastic when scraping paint
- Check with your local planning authority if your home is listed
- Keep sills and gutters clear so water drains away
- Avoid patching sand mastic with silicone
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
How it works
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a single window, longer for several, including the tidy-up. For a village or hamlet like Farleigh Wallop, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we will take it from there.
Advice
What sealant work cannot fix
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Sashes that rattle, stick or will not open
- Whether work needs listed building consent
- Putty and glazing repairs
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
Surfaces we seal
- Timber door frames
- Tenement windows
- Brick reveals
- Stone surrounds
- Period & listed homes
- Sash and case windows
How the job changes by surface
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Towns and villages near Farleigh Wallop
Also in Farleigh Wallop
Sand mastic in Farleigh Wallop: local notes
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Hall Place (about 5 miles south-east) nearby, there’s older building stock in the area around Farleigh Wallop as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as Brighton Hill Community School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Basingstoke station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Farleigh Wallop is about 3 miles south of Basingstoke, in Hampshire. Across the RG25 area, our applicators can take on sand mastic. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. Reading is on our list too, around 17 miles away.
Jobs for sand mastic in RG25 is quoted and booked the same way as anywhere else. You’ll find streets such as The Avenue and Grammarsham Lane, all of which we cover. We also cover Hatch Warren (1 mile north), Dummer (2 miles west), Kempshott (2 miles north-west), Brighton Hill (2 miles north) and South Ham (3 miles north). We also work in nearby towns such as Basingstoke (3 miles north), Winchester (14 miles south-west), Fleet (12 miles east), Aldershot (15 miles east), Alton (8 miles south-east) and Yateley (15 miles north-east).
Around Farleigh Wallop
Farleigh Wallop’s nearest station is Basingstoke station, roughly 3.7 miles north of the centre. Other landmarks nearby include Basing House (4.4 miles north-east) and Festival Place (3.6 miles north). For a walk, there’s The Mill Field and Farleigh Hill.
Farleigh Wallop questions
Is Farleigh Wallop in your area for sand mastic?
Yes. Our work covers London and the South East, and Farleigh Wallop is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Is Farleigh Wallop within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Do you take out the old sealant first?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours for a single window, longer for several. We’ll give you a better idea when we quote.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Why act early in Farleigh Wallop
Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. Older cottages and farmhouses around Farleigh Wallop can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why Farleigh Wallop customers choose us
- Approved under the ARBOMaster scheme
- Trusted Arbo and Everbuild sealants
- Over 20 years’ experience
- Old sealant always removed completely
Read our cost guide and what customers say.