Hampshire · England
Roughdown Sand Mastic
Professional sand mastic in and around Roughdown, with old sealant always removed completely.
- Silicone on a period window that looks wrong
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
Looking after it afterwards
So the new joints stay in good condition:
- Avoid heavy scraping on the mastic joint
- Sort the mastic before the decorators arrive
- Have rotten timber repaired before new mastic goes in
- Keep modern sealant off the mastic
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.
Sand mastic in Roughdown, done properly
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you have mastic dropping out of the joint and modern sealant on a period surround, we can help.
Somewhere as small as Roughdown, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
You get a one-year guarantee, the same in Roughdown as everywhere else we work.
- Location
- Roughdown (SO45)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Roughdown homes and the weather
Roughdown is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Historic houses like Beaulieu Palace House (about 2.7 miles west) are a reminder that the area around Roughdown has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Blackfield Primary School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Netley station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Roughdown is about 3 miles south of Hythe, in Hampshire. Jobs in Roughdown get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. You can also see our page for Southampton, roughly 7 miles from Roughdown.
Jobs for sand mastic in SO45 is quoted and booked the same way as anywhere else. Other places close to Roughdown include Holbury (1 mile north), Blackfield (1 mile east), Little Holbury (1 mile north), Langley (1 mile south-east) and Hardley (1 mile north). Further out, we also cover Gosport (10 miles east), Eastleigh (10 miles north), Fareham (9 miles east), Totton (9 miles north-west), Chandler's Ford (11 miles north) and Hedge End (8 miles north-east).
Local landmarks in Roughdown
Locally, jobs take us to homes and businesses close to The New Forest Academy and the streets around them. Roughdown’s nearest station is Netley station, roughly 4.3 miles north-east of the centre. Well-known places in the area include Beaulieu Abbey And Display Of Monastic Life (2.9 miles west) and Calshot Castle (3.5 miles east). Not far away are Mercury Marshes.
Your questions about sand mastic in Roughdown
Do you work for landlords with property near Netley station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Does the coastal weather in Roughdown affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Can sand mastic be painted?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Do you offer different sealant colours?
We help you choose a colour that suits. The product needed can limit the range.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick usually suit sand mastic and newer frames usually get a flexible sealant.
What happens if it’s left?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. In a small place like Roughdown, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why us?
- ARBOMaster approved applicator
- A 12-month guarantee on all work
- Fully insured
- Sanitary silicone with an anti-fungal additive in wet areas
See our cost guide or customer reviews.
Signs you need sand mastic in Roughdown
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they normally need raking out.
Most people get in touch when they notice one of these:
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
- Cement or filler used on old window joints that has cracked
Beaulieu Palace House, about 2.7 miles west, is one of the historic houses in the wider area around Roughdown, and older homes nearby need a sealant that suits their walls.
Questions to ask before you book
- Whether the sealant suits the joint
- How hidden problems are handled
- Whether they’re fully insured
- Whether they seal over old material or remove it
Honest limits
We’ll always be straight with you, so here’s what sealant can’t fix:
- Sashes that rattle, stick or will not open
- Rotten sashes, sills or window boxes (a joiner’s job)
- Broken panes
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Where we work in Roughdown
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
- Timber door frames
What the job involves on each surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
What happens on the day
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours per window, depending on the condition of the joints. Somewhere as small as Roughdown, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Tell us about any water getting in
- Move anything stored near the joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
If you’re in Roughdown and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Read more
Landlords, agents and businesses in Roughdown
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.