Hampshire · England
Sand mastic for sash & case windows in Boldre, Hampshire
We cover Boldre for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps between timber frames and stone or brick
- Tired mastic found when preparing windows for paint
Why act early in Boldre
New sash windows are a major, costly change and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Where a wall is exposed, as many are in small places like Boldre, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
Why book with us
- Experience in homes, commercial sites and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Over 20 years’ experience
- Fully insured
Take a look at how sealant jobs are priced or what customers say.
Sand mastic in Boldre, done properly
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead and we will explain which is best for yours. If you have open joints round the window box and cracked mastic round a front door frame, we can put it right.
Outdoor sealant needs dry, clean surfaces, so work on frames around Boldre is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months.
- Place
- Boldre (SO41)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about sand mastic in Boldre
Will you come out to Boldre?
Yes, Boldre is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I let a flat near Lymington Town station. Can you help?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
Do you guarantee sand mastic work?
Our one-year guarantee covers every job, sand mastic included.
Is sand mastic better than silicone for my windows?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
How much does sand mastic cost in Boldre?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Places near Boldre
What else we do in Boldre
Surface by surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
How the visit works
The work is kept neat and contained to the area we’re working on, so you can get on with your day. The job usually takes a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. In a small place like Boldre, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- 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.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or email us.
Related advice
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Go gently near the mastic when preparing windows
- Renew mastic before redecorating the windows
- Ask us before painting near the mastic
- Keep modern sealant off the mastic
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Boldre homes and the weather
Boldre is within about 2 miles of 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Lymington Town station? Then any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as William Gilpin Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to Saint Nicholas Chapel include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Boldre is about 2 miles north of Lymington, in Hampshire. Wherever you are in the SO41 postcode area, our applicators can take on sand mastic. Our Hampshire coverage runs to 683 places, and Boldre is one of them. You can also see our page for Southampton, roughly 12 miles from Boldre.
Every address in SO41 is covered for sand mastic. Whether your property is on Tweed Lane, Boldre Lane and Rope Hill or a nearby road, we can help. If you’re just outside Boldre, we cover Warborne (1 mile south-east), Battramsley (1 mile north-west), Pilley (1 mile east), Sandy Down (1 mile north-west) and Mount Pleasant (1 mile west). Larger places within reach include Totton (10 miles north), Hedge End (14 miles north-east), Romsey (15 miles north), Hythe (9 miles north-east), New Milton (5 miles west) and Ringwood (11 miles north-west).
Around Boldre
Around Boldre, our work takes us to homes and buildings near Southlands School, The Red Lion Inn and Priestlands School. The closest station to Boldre is Lymington Town station, about 1.5 miles south-east of the centre. Other landmarks nearby include St Barbe Museum and Art Gallery (1.5 miles south) and Lymington New Forest Hospital (0.8 miles south). Open spaces near Boldre include Boldre Foreshore.
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Whether work needs listed building consent
- Damaged stone surrounds
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Period & listed homes
- Stone surrounds
- Brick reveals
- Timber door frames
Landlord and commercial work in Boldre
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.