Hampshire · England
Window Mastic in Perham Down
Window and door frames in Perham Down need attention? We cut out the old, prepare the joints and apply the right sealant.
- Rain getting in at the frame or under the sill
- Gaps left after new windows were fitted
- Whistling draughts around closed windows
Signs you need window mastic in Perham Down
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.
Most people get in touch after spotting something like this:
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
- Rain getting in at the frame or under the sill
- A bead that doesn’t match the frame
In the older streets around Church of St James, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- The length of the guarantee
- Who does the work, and how experienced they are
- How hidden problems are handled
- Whether they seal over old material or remove it
About our window mastic in Perham Down
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that cannot flex, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. Typical jobs include sealant in the wrong colour for the frame and whistling draughts around closed windows, on window sills, timber windows & doors and patio & French doors.
Homes in small places like Perham Down often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Location
- Perham Down (SP11)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Keep timber frames painted
- Keep jet washers away from the mastic
- Don’t paint over the silicone
- Avoid harsh chemicals near the mastic
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
What affects the quote in Perham Down
The price is agreed before any work begins. It’s based on:
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- The size of the job
Combining jobs into one visit is usually more efficient than separate visits. We will give you a clear price for the lot.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- The problem you’ve noticed
- Where the property is
Want a quote for window mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
What sealant work can’t fix
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Broken hinges, locks or handles
- Draughts through the window seals rather than the frame
- Condensation trapped between the panes
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Surfaces we seal
- Window sills
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
- Patio & French doors
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
What window mastic looks like in Perham Down
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Grateley station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Schools such as The Wellington Academy are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Perham Down is about 7 miles west of Andover, in Hampshire. We provide window mastic to homes and businesses in Perham Down and nearby. Our Hampshire coverage runs to 683 places, Perham Down among them. Southampton is on our list too, about 25 miles from Perham Down.
Here we cover the SP11 postcode area for window mastic. We cover properties on Perth Road, Somme Road and Upnor Close and the roads around them. We also cover the places around Perham Down: Great Shoddesden (1 mile east), Ludgershall (1 mile north), Tidworth (1 mile west), Kimpton (2 miles south-east) and Shipton Bellinger (3 miles south-west). Larger places within reach include Andover (7 miles east), Whitchurch (13 miles east), East Anton (7 miles east), Picket Piece (8 miles east), Picket Twenty (8 miles east) and Finkley Down (8 miles east).
Local landmarks in Perham Down
The closest station to Perham Down is Grateley station, roughly 4.9 miles south. Well-known places in the area include Ludgershall Castle (1.3 miles north). Not far away are Quarley Hill.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a few frames, or a day or more for a whole house and we leave things clean and tidy. In a small place like Perham Down, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- Mention if the joints have been sealed before
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Also near Perham Down
What else we do in Perham Down
Perham Down questions
Is Perham Down within the area you cover?
Yes, Perham Down is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do window mastic in Perham Down?
Yes. Our work covers London and the South East, and Perham Down is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Can you reach windows above the ground floor?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.