Hampshire · England
Sand Mastic in Balmerlawn
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Balmerlawn, backed by a one-year guarantee. Call for a quick quote.
- Modern sealant on a period surround
- Cracked mastic round a front door frame
- Old sand mastic that has cracked, crumbled or fallen out
How we handle sand mastic in Balmerlawn
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. We work on brick reveals, period & listed homes and tenement windows, and people most often call us about patchy fillers round a sash window and mastic round period door frames that has failed.
Outdoor sealant needs dry, clean surfaces, so work on frames around Balmerlawn is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.
- Place
- Balmerlawn (SO42)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
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.
Why deal with it now?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. In a small place like Balmerlawn, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why choose Mr Mastic in Balmerlawn
- Homes, businesses and hotels
- Old sealant always removed completely
- Neat joints and a tidy finish
- Fully insured
Take a look at our cost guide or our reviews.
What sand mastic looks like in Balmerlawn
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Beaulieu Palace House (about 4.9 miles east) are a reminder that the area around Balmerlawn has older buildings as well as new. 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.
Letting a property close to Brockenhurst station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Brockenhurst Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to Church of St Nicholas include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Balmerlawn is about 5 miles north of Lymington, in Hampshire. We carry out sand mastic for homes and businesses in Balmerlawn and nearby. We cover 683 towns and villages across Hampshire, large and small. We also work in Southampton, around 10 miles away.
All of SO42 is within our area for sand mastic, from the main roads to the quietest streets. If you’re just outside Balmerlawn, we cover Brockenhurst (1 mile south-west), Setley (1 mile south), South Weirs (2 miles south-west), Lyndhurst (3 miles north) and Emery Down (3 miles north). We also work in nearby towns such as Eastleigh (14 miles north-east), Totton (7 miles north), Chandler's Ford (13 miles north-east), Hedge End (13 miles north-east), Lymington (5 miles south) and Romsey (12 miles north).
Near you in Balmerlawn
Typical jobs here are in homes near Rose And Crown Hotel, among other places. The nearest railway station is Brockenhurst station, about 0.9 miles south-west of the centre. Nearby you’ll also find Lymington New Forest Hospital (4 miles south).
Looking after it afterwards
Looking after new joints is easy:
- Ask the planning authority about consent for listed or conservation-area homes
- Take care around the mastic when scraping paint
- Ask us before painting near the mastic
- Look over the window mastic once a year
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
Towns and villages near Balmerlawn
More services for Balmerlawn
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Balmerlawn, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
Getting a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Read more
How the job changes by surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. We shape it by hand to follow the stone.
Questions from Balmerlawn
I let a flat near Brockenhurst station. Can you help?
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’ll give you a clear price.
Will you come out to Balmerlawn?
Yes. Balmerlawn is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
What guarantee comes with the work?
Our 12-month guarantee applies to all our work.
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
For anyone letting property in or around Balmerlawn, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
When something else is needed
It helps to know what we can’t do too:
- Sash cords, weights and draught-proofing of the sashes
- Broken panes
- Damaged stone surrounds
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.
Where we work in Balmerlawn
- Stone surrounds
- Tenement windows
- Sash and case windows
- Period & listed homes
- Timber door frames
- Brick reveals