Southampton · England
Sand mastic for sash & case windows in Chilworth Old Village, Southampton
Professional sand mastic in and around Chilworth Old Village, with every bit of old sealant taken out first.
- Modern sealant on a period surround
- Failed mastic on an exposed elevation
- Gaps round a timber door in stone or brick
What the job involves on each surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
Sand mastic in Chilworth Old Village, done properly
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on brick reveals, sash and case windows and period & listed homes, and people most often call us about gaps between timber frames and stone or brick and mastic dropping out of the joint.
Around Chilworth Old Village, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Your job is guaranteed for a year, as with all our work.
- Place
- Chilworth Old Village (SO16)
- Wider area
- Southampton
- Cover
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Chilworth Old Village questions
Can you do sand mastic in Chilworth Old Village?
Yes, Chilworth Old Village is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Can you help a landlord with a rental near Chandlers Ford 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.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
How long will you be here?
Most jobs take anything from a few hours to a full day, depending on how many windows, including preparation and clearing up. We’ll confirm how long when we quote.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Leave it or put it right?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Where a wall is exposed, as many are in small places like Chilworth Old Village, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- An ARBOMaster approved applicator
- Homes, businesses and hotels
Read our cost guide or what customers say.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Find out about consent before window work on a listed home
- Get any rot dealt with first
- Keep sills and gutters clear so water drains away
- Avoid patching sand mastic with silicone
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, 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 doesn’t work out, we can still put it right.
Nearby places to Chilworth Old Village
What else we do in Chilworth Old Village
Landlords, agents and businesses in Chilworth Old Village
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
The process
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere like Chilworth Old Village needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- Tell us about any water getting in
- Keep children and pets away from the work area
- Tell us if parking is tricky
Ask for a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Advice
Quotes for sand mastic in Chilworth Old Village
Your quote is based on your job. We take into account:
- The type of sealant required
- The number and length of the joints
- How many areas need sealing
- Access and height
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- The address or postcode of the job
- Pictures of the joints, sent by email
- If someone has resealed it before
- The problem you’ve noticed
Want a quote for sand mastic? Please phone 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Frames and glazing around Chilworth Old Village
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like South Stoneham House (about 2.8 miles south-east) are a reminder that the area around Chilworth Old Village has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as North Baddesley Junior School, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Chandlers Ford station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near Church of St Denys, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Chilworth Old Village is about 2 miles south-west of Chandler's Ford, in Southampton. From the centre of Chilworth Old Village to the outskirts, we cover sand mastic for every kind of property. Across Southampton, we cover 40 places, and Chilworth Old Village is one of them.
Here we cover the SO16 postcode area for sand mastic. If you’re just outside Chilworth Old Village, we cover Chilworth (1 mile south-east), North Baddesley (1 mile north-west), Knightwood (2 miles north-east), Lordswood (2 miles south) and Bassett (2 miles south). Within a short drive, we also cover Southampton (4 miles south), Shirley (3 miles south), Regents Park (3 miles south), Townhill Park (4 miles south-east), Midanbury (4 miles south-east) and Thornhill (5 miles south-east).
Local landmarks in Chilworth Old Village
In Chilworth Old Village, that means homes and buildings near Cantell School. For rail, the closest station is Chandlers Ford station, roughly 2 miles north-east. Nearby you will also find Eastleigh Museum (2.9 miles east) and Princess Anne Hospital (2.3 miles south). Not far away are Emer Bog and Baddesley Common.