Hampshire · England
Window & door mastic in Roughdown, Hampshire
Window mastic in Roughdown from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked internal joints between frame and plaster
- White mastic on grey or black frames
- Old mastic that has gone black or come away
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere like Roughdown needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or drop us an email.
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Window mastic in Roughdown, done properly
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on timber windows & doors, patio & French doors and aluminium frames, and common reasons people get in touch are old mastic that has gone black or come away and whistling draughts around closed windows.
Homes in small places like Roughdown 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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Roughdown (SO45)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Roughdown
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Penetrating damp from a failed cavity tray or render
- A sash or casement that will not close properly
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Window sills
- Aluminium frames
- Patio & French doors
- Composite doors
- Timber windows & doors
- uPVC windows
Window mastic in Roughdown: local notes
Roughdown is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. 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.
Historic houses such as Beaulieu Palace House, about 2.7 miles west, show how far back building around Roughdown goes, and older homes nearby need a sealant that suits their walls. Managing a site like Blackfield Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Roughdown is about 3 miles south of Hythe, in Hampshire. From the centre of Roughdown to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Roughdown is one of 683 places in Hampshire we cover for window mastic. Our Southampton page covers work nearby, about 7 miles away.
Postcode districts we cover here for window mastic: SO45. Close by, we work in Holbury (1 mile north), Blackfield (1 mile east), Little Holbury (1 mile north), Langley (1 mile south-east) and Hardley (1 mile north). Within a short drive, we also cover Gosport (10 miles east), Eastleigh (10 miles north), Fareham (9 miles east), Totton (9 miles north-west), Chandler's Ford (11 miles north) and Hedge End (8 miles north-east).
What’s near Roughdown
Typical jobs here are in homes near The New Forest Academy, among other places. The nearest railway station is Netley station, roughly 4.3 miles north-east of the centre. Nearby you will also find Beaulieu Abbey And Display Of Monastic Life (2.9 miles west) and Calshot Castle (3.5 miles east). For a walk, there’s Mercury Marshes.
Questions from Roughdown
Does living near the coast affect window mastic in Roughdown?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like Roughdown?
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 the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you seal the gap between the frame and the plaster indoors?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
Is the work guaranteed?
Yes, for 12 months. A yearly look at the joints helps them last.
Do you need window mastic in Roughdown?
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
These are the problems we’re asked about most:
- Cracked or shrunken mastic around the frame
- A bead that doesn’t match the frame
- Cracked internal joints between frame and plaster
- Gaps where the sill meets the wall
Rented homes near Netley station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Before booking anyone
- What product goes in the joint
- What insurance they hold
- Whether VAT is included
- How the joint is cleaned and prepared
Quotes for window mastic in Roughdown
We quote each job individually. These are the things that affect it:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- The type of sealant required
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Access, such as stairs, a lift or height
- The rough size of the job
- What’s wrong with the joints now
- If someone has resealed it before
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.
Nearby places to Roughdown
Other services in Roughdown
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Don’t use solvent cleaners on the joint
- Do not paint over the silicone
- Repaint timber before it’s bare
- Keep jet washers away from the mastic
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Can I do it myself?
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.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.