Hampshire · England
Window Mastic in Hangersley
We cover Hangersley for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Mastic that has split away from the wall
- Rain getting in at the frame or under the sill
- Mastic that is falling out in pieces
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
- A frame that has rotted at the joint
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Where we work in Hangersley
- Window sills
- Composite doors
- Aluminium frames
- uPVC windows
- Patio & French doors
- Timber windows & doors
Window mastic in Hangersley, done properly
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you are dealing with draughts coming in around windows and doors and old mastic that has gone black or come away, we can put it right, whatever the surface.
Homes in small places like Hangersley 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.
Big or small, it’s backed by our 12-month guarantee in Hangersley and across Hampshire.
- Location
- Hangersley (BH24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Why deal with it now?
Failed mastic is not a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we’ll tell you. In a small place like Hangersley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why us?
- A 12-month guarantee on all work
- Fully insured
- A choice of colours where the product allows
- More than 20 years in sealant work
Take a look at our cost guide and what customers say.
What else we do in Hangersley
What the job involves on each surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We will tell you if that’s what we find.
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Avoid harsh chemicals near the mastic
- Keep paint off silicone joints
- Keep jet washers away from the mastic
- Wipe condensation off the frames
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
Hangersley homes and the weather
Historic houses like Avon Tyrrell House (about 4.1 miles south) are a reminder that the area around Hangersley 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. 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.
Homes close to St John the Baptist include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Hangersley is in Hampshire. If you need window mastic in Hangersley, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Hampshire. Hangersley is one of 683 towns and villages in Hampshire where we work for window mastic. You can also see our page for Southampton, about 16 miles away.
Work in BH24 is quoted and booked the same way as anywhere else. That includes homes and businesses on St Aubyns Lane and Cowpitts Lane and the roads around them. We also cover Shobley (1 mile east), Highwood (1 mile north), Forest Corner (1 mile south-east), Foulford (1 mile south-east) and Poulner (1 mile south-west). Further out, we also cover Totton (12 miles 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).
Near you in Hangersley
Locally, jobs take us to homes and businesses close to Ringwood School Academy and The London Tavern and the streets around them. Nearby you’ll also find St Leonard's Hospital (5.4 miles south-west). The countryside around Hangersley includes Linbrook Lake and Blashford Lakes.
Common problems we fix in Hangersley
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Common reasons people contact us are:
- Hard, cracked sealant around windows
- Gaps where the sill meets the wall
- Whistling draughts around closed windows
- Cracked internal joints between frame and plaster
Schools such as Poulner Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- How the surfaces are prepared before sealing
- What product goes in the joint
- How much experience the applicator has
- What the cure time is
Hangersley: your questions answered
Can you do window mastic in Hangersley?
Yes. We work across London and the South East, and Hangersley is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Is there a guarantee on window mastic in Hangersley?
All our work, in Hangersley and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Can you reach windows above the ground floor?
Yes, as long as they can be reached safely. Tell us about access when you get in touch and we will plan for it.
Where are you based?
Mr Mastic is based in Crawley. We cover Hangersley and the rest of Hampshire, along with the rest of our area.
Are you insured?
Yes. Full insurance covers our work.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it generally takes a morning for a couple of windows and a door. Somewhere as small as Hangersley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Let us know about parking restrictions
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Related advice
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
