Hampshire · England
Sand Mastic in Forest Corner
Sand mastic for Forest Corner, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
- Weathered mastic on the most exposed windows
Forest Corner: your questions answered
Is there a guarantee on sand mastic in Forest Corner?
All our work, in Forest Corner and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Is Forest Corner in your area for sand mastic?
Yes. Our work covers London and the South East, and Forest Corner is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is consent needed for window work on a listed 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.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Forest Corner.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
About our sand mastic in Forest Corner
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We’re often asked to deal with crumbling sand mastic round a window and tired mastic found when preparing windows for paint, on sash and case windows, timber door frames and tenement windows.
Homes in small places like Forest Corner 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.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Forest Corner (BH24)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Forest Corner
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Other services in Forest Corner
What happens on the day
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours per window, depending on the condition of the joints. Somewhere as small as Forest Corner, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Read more
Why it’s worth doing now in Forest Corner
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Around Forest Corner, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
What you get with us
- Old sealant always removed completely
- Homes, businesses and hotels
- Every job guaranteed for a year
- Anti-fungal silicone where joints get wet
Read how sealant jobs are priced and customer reviews.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Sash cords, weights and draught-proofing of the sashes
- Decayed frames that need repair
- Broken panes
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Stone surrounds
- Tenement windows
- Brick reveals
- Period & listed homes
- Sash and case windows
- Timber door frames
What sand mastic looks like in Forest Corner
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Avon Tyrrell House (about 3.6 miles south) nearby, there’s older building stock in the area around Forest Corner as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Poulner Infant School, its window and door frames need their mastic kept sound, just like a home’s.
Forest Corner is about 1 mile east of Ringwood, in Hampshire. We carry out sand mastic for homes and businesses in Forest Corner and the surrounding area. Our Hampshire coverage runs to 683 places, Forest Corner among them. You can also see our page for Southampton, roughly 16 miles from Forest Corner.
All of BH24 is within our area for sand mastic. You will find streets such as Burcombe Lane, St Aubyns Lane and Picket Hill, and we cover them all. Neighbouring places we cover for sand mastic include Foulford (1 mile south-east), Shobley (1 mile north-east), Hangersley (1 mile north-west), Poulner (1 mile west) and Hightown (1 mile south-west). Larger places within reach include Totton (12 miles north-east), Lymington (11 miles south-east), Romsey (15 miles north-east), Hythe (15 miles east), New Milton (8 miles south-east) and Barton on Sea (9 miles south-east).
Around Forest Corner
We work in homes and buildings around The London Tavern and Ringwood School Academy and the streets around them. A little further out are St Leonard's Hospital (5.3 miles south-west). Green spaces nearby include Blashford Lakes and Linbrook Lake.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Go gently near the mastic when preparing windows
- Find out about consent before window work on a listed home
- Keep modern sealant off the mastic
- Ask us before painting near the mastic
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
How the job changes by surface
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. We rake it out and renew it.
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.