Hampshire · England
Window & door mastic in Priddy's Hard, Hampshire
Mastic around window and door frames, sills and patio doors for Priddy's Hard, backed by a one-year guarantee. Call for a quick quote.
- Black, perished sealant on frames
- Draughty joints inside around the window
- Leaking joints at the ends of sills
What the job involves on each surface
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
How we handle window mastic in Priddy's Hard
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 deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on uPVC windows, timber windows & doors and patio & French doors, and people most often call us about untidy mastic left by window fitters and leaking joints at the ends of sills.
Around Priddy's Hard, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
You get a one-year guarantee, the same in Priddy's Hard as everywhere else we work.
- Where
- Priddy's Hard (PO12)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Why deal with it now?
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. Older cottages and farmhouses around Priddy's Hard can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why us?
- 180+ five-star Google reviews
- Approved under the ARBOMaster scheme
- White, clear, grey or coloured to suit, where the product allows
- Fully insured
See what affects the cost and customer reviews.
FAQs for Priddy's Hard
Is window mastic in a coastal place like Priddy's Hard any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
I let a flat near Portsmouth Harbour station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you work on first-floor windows?
Yes, in most cases. We plan safe access before the job.
Is it OK to seal over old sealant?
No, it will not last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
How long should I leave it?
It depends on the product. We tell you how long to leave it before we go.
Landlord and commercial work in Priddy's Hard
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
What we’re called out for in Priddy's Hard
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, so it comes away long before its time.
It’s worth asking for a quote if you see:
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
- Leaking joints at the ends of sills
- Mastic that has split away from the wall
Schools such as St Vincent College are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Whether all the old sealant comes out first
- What guarantee comes with the work
- Is VAT in the price?
- How long to leave it before use
How the visit works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Priddy's Hard, the journey is planned in advance: 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 confirm safe access to each frame.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
How to prepare
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Move anything stored near the joints
How to get a quote
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We will send you a clear quote before any work starts.
Read more
Nearby places to Priddy's Hard
Also in Priddy's Hard
Frames and glazing around Priddy's Hard
Priddy's Hard is close to 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Portsmouth Harbour station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Priddy's Hard is about 1 mile east of Gosport, in Hampshire. From the centre of Priddy's Hard to the outskirts, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Hampshire, we cover 683 places, Priddy's Hard among them.
Postcode districts we cover here for window mastic: PO12. That includes homes and businesses on Weevil Lane, Orion Avenue and Salt Meat Lane. Nearby, we also carry out window mastic in Forton (1 mile south-west), Elson (1 mile north-west), Gosport (1 mile west), Bridgemary (2 miles north-west) and Rowner (2 miles north-west). Within a short drive, we also cover Havant (7 miles north-east), Eastleigh (15 miles north-west), Fareham (4 miles north-west), Horndean (9 miles north-east), Hedge End (11 miles north-west) and Waterlooville (7 miles north-east).
Landmarks near Priddy's Hard
Around Priddy's Hard, our work takes us to homes and buildings near Brune Park Community School, The Windsor Castle pub and Elson Junior School and the streets around them. The closest station to Priddy's Hard is Portsmouth Harbour station, about 1 mile south-east of the centre. Nearby you will also find Tricorn Centre (1.6 miles east) and Search (0.8 miles south). The countryside around Priddy's Hard includes West of the River Alver and Portsdown Hill.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
If you’re 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.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Air rooms to keep condensation down around windows
- Keep paint off silicone joints
- Walk round the house once a year and look at the joints
- Don’t aim a pressure washer at the joints
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just ring 0345 464 0079 or drop us an email.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
