Hampshire · England
Leigh Park Window Mastic
Window mastic across Leigh Park and nearby, with every bit of old sealant taken out first.
- Gaps where the sill meets the wall
- White mastic on grey or black frames
- Whistling draughts around closed windows
Window mastic in Leigh Park
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We work on window sills, timber windows & doors and patio & French doors, and the jobs we see most are damp patches on the reveal after heavy rain and leaking joints at the ends of sills.
In smaller places like Leigh Park, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Leigh Park (PO9)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Leigh Park
If you manage several properties in or around Leigh Park, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
DIY versus a professional finish
If you’re set on DIY, put the effort into 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.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What we do, step by step
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a morning for a couple of windows and a door. In a smaller place like Leigh Park, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Mention any parking rules near the property
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or drop us an email.
Read more
What affects the cost of window mastic
There’s no set price list, because jobs vary so much. The quote depends on:
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- How many areas need sealing
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- The type of property
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Looking after it afterwards
So the new joints stay in good condition:
- Use gentle cleaners on frames and sealant
- Air rooms to keep condensation down around windows
- Repaint timber before it’s bare
- Keep solvents and bleach off the sealant
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just phone 0345 464 0079 or email us.
Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Leigh Park questions
Can you help a landlord with a rental near Havant station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is window mastic in a coastal place like Leigh Park any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Where are you based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Is the new sealant paintable?
That depends on the product. Some hybrid sealants can be painted; silicone cannot. Tell us if you’re decorating and we will choose accordingly.
Towns and villages near Leigh Park
Other services in Leigh Park
Leigh Park homes and the weather
Leigh Park is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Historic houses like Warblington Castle (about 1.9 miles south-east) are a reminder that the area around Leigh Park has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to St Francis include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. If you let a flat or house near Havant station, renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like Riders Infant School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Leigh Park is about 1 mile north of Havant, in Hampshire. Our applicators cover window mastic for householders, landlords and businesses in Leigh Park and nearby, as part of our work across Hampshire. Leigh Park is one of 683 towns and villages in Hampshire where we work. There’s also a page for Portsmouth, about 6 miles away.
Our applicators cover all of PO9 for window mastic. That includes homes and businesses on Riders Lane, Iping Avenue and Sunwood Road and the roads around them. Nearby, we also carry out window mastic in Havant (1 mile south), Durrants (1 mile north-east), Denvilles (1 mile south-east), Rowlands Castle (2 miles north-east) and Langstone (2 miles south). Within a short drive, we also cover Gosport (8 miles south-west), Fareham (9 miles west), Horndean (3 miles north), Hedge End (14 miles west), Petersfield (10 miles north) and Locks Heath (12 miles west).
Landmarks near Leigh Park
In Leigh Park, that means homes and buildings near St Albans Church and Park Community School and the streets around them. The closest station to Leigh Park is Havant station, about 1 mile south of the centre. Nearby you’ll also find Warblington Castle (1.9 miles south-east) and Havant Museum (1.3 miles south). For a walk, there’s Windmill Hill and Southmoor Nature Reserve.
When it isn’t the sealant
In fairness, there are a few things sealant will not fix:
- Damp problems in the wall away from the window
- Condensation trapped between the panes
- Soft or decayed wood in the frame
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Aluminium frames
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
- Timber windows & doors
What the job involves on each surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. It comes out, deep gaps get backing rod and the joint is resealed.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as a joiner will need to deal with it.