Hampshire · England
Sand mastic for sash & case windows in Foulford, Hampshire
Sand mastic for Foulford, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Draughty sash windows at the surround
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
Sand mastic in Foulford
We work across Foulford renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you are dealing with gaps between timber frames and stone or brick and silicone on a period window that looks wrong, we can put it right, on stone surrounds, sash and case windows and timber door frames alike.
Homes in small places like Foulford often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
All our work comes with a 12-month guarantee, wherever you are in Hampshire.
- Place
- Foulford (BH24)
- Region
- Hampshire
- Cover
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

What happens if it’s left?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new work lasts. Older cottages and farmhouses around Foulford can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why Foulford clients choose us
- Full insurance on every job
- More than 20 years in sealant work
- Any old sealant cut out fully, not covered over
- One-year guarantee on every job
See our cost guide or our reviews.
Places near Foulford
What else we do in Foulford
Sand mastic in Foulford: local notes
With historic houses such as Avon Tyrrell House (about 3.3 miles south) nearby, there’s older building stock in the area around Foulford 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’s traditional sand mastic. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Ringwood School Academy, its window and door frames need their mastic kept sound, just like a home’s.
Foulford is in Hampshire. Wherever you are in the BH24 postcode area, we can carry out sand mastic at your property. We cover 683 towns and villages across Hampshire. Our Southampton page covers work nearby (16 miles or so).
Here we cover the BH24 postcode area for sand mastic. Close by, we work in Forest Corner (1 mile north-west), Shobley (1 mile north), Hangersley (1 mile north-west), Hightown (1 mile south-west) and Poulner (1 mile west). Further out, we also cover Totton (11 miles north-east), Lymington (11 miles south-east), Romsey (15 miles north-east), Hythe (15 miles east), New Milton (7 miles south-east) and Barton on Sea (8 miles south-east).
Landmarks near Foulford
Nearby you will also find St Leonard's Hospital (5.5 miles south-west). The countryside around Foulford includes Blashford Lakes and Linbrook Lake.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
How to look after the new joints
So the new joints stay in good condition:
- Ask us before painting near the mastic
- Avoid heavy scraping on the mastic joint
- Make sure water runs off the sill
- Check with your local planning authority if your home is listed
Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
How we quote for sand mastic
Your quote is based on your job. We take into account:
- Working hours on commercial sites
- The type of sealant required
- The size of the job
- Access and height
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
What we need to know
When you call or email, it’s useful to know:
- Where the property is
- If someone has resealed it before
- The problem you’ve noticed
- A few photos by email, if you can
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Signs you need sand mastic in Foulford
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
It’s worth asking for a quote if you see:
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
- A silicone bead on a sash window that spoils the look
- Cracked mastic round a front door frame
In the older streets around St John the Baptist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before you book anyone
- How hidden problems are handled
- Whether all the old sealant comes out first
- How the colour is chosen
- Who turns up on the day
Your questions about sand mastic in Foulford
Do you cover smaller places like Foulford?
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.
Do you cover Foulford for sand mastic?
Yes, Foulford is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you are redecorating the window, ask us first and we will talk you through it.
How long will you be here?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Larger jobs naturally take longer, and we will say how long yours will take.
Landlord and commercial work in Foulford
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Foulford, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
What happens on the day
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes anything from a few hours to a full day, depending on how many windows. Somewhere like Foulford needs a little journey planning: 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 look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Tell us about any water getting in
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
How to get a quote
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.
