Hampshire · England
Forest Corner Window Mastic
Professional window mastic in and around Forest Corner, with old sealant always removed completely and a 12-month guarantee.
- Gaps where the sill meets the wall
- Cracked internal joints between frame and plaster
- Mastic that is falling out in pieces
About our window mastic in Forest Corner
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We work on patio & French doors, uPVC windows and timber windows & doors, and people most often call us about cracked sealant at the sill ends and hard, cracked sealant around windows.
Mastic can only go onto a dry, clean joint, so window work in Forest Corner is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Your job is guaranteed for a year, as with all our work.
- Where
- Forest Corner (BH24)
- Region
- Hampshire
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of window mastic
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- How easy the joints are to reach
- Any working-time requirements on site
The cost reflects the work involved, not guesswork. That is why we ask about the job first and agree the price before starting.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
- Whether it has been sealed before
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Also in Forest Corner
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Frames and glazing around Forest Corner
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. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Forest Corner is about 1 mile east of Ringwood, in Hampshire. Forest Corner gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Hampshire, we cover 683 places, Forest Corner among them. Southampton is on our list too, about 16 miles from Forest Corner.
We cover every part of the BH24 postcode area for window mastic and the streets around it. You will find streets such as Burcombe Lane, St Aubyns Lane and Picket Hill. We also cover 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). Within a short drive, we also cover 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).
Near you in Forest Corner
Typical jobs here are in homes near The London Tavern and Ringwood School Academy and the streets around them. Well-known places in the area include St Leonard's Hospital (5.3 miles south-west). Open spaces near Forest Corner include Blashford Lakes and Linbrook Lake.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Wipe condensation off the frames
- Wash the frames with mild soapy water
- Repaint timber before it’s bare
- Check the mastic once a year
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from an hour or two to a full day, depending on how many frames there are and we leave things clean and tidy. Somewhere like Forest Corner needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Before we arrive
- For business premises, tell us about site rules or sign-in
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
How to get a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand.
Advice
Landlords, agents and businesses in Forest Corner
For anyone letting property in or around Forest Corner, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Surface by surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall.
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Forest Corner questions
Is Forest Corner within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Forest Corner for window mastic?
Yes. Our work covers London and the South East, and Forest Corner is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Can landlords and businesses book you?
Yes, we do. We work in homes, commercial premises and hotels.
Can I paint over the new sealant?
Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Does the work come with a guarantee?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
Can you match the sealant to my frames?
Yes. We can use white, brown, anthracite grey, black or clear.
Do you need window mastic in Forest Corner?
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
Keep an eye out for these signs:
- Old mastic that has gone black or come away
- Whistling draughts around closed windows
- Rushed sealant from a window installation
- A bead that does not match the frame
For site and facilities teams at buildings such as Poulner Infant School, its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- What insurance they hold
- What happens if the job turns out different
- Which colour the sealant will be
- What the quote includes, VAT included or not