Hampshire · England
Window & door mastic in Park Gate, Hampshire
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Park Gate. Fully insured, ARBOMaster approved and guaranteed for a year.
- White mastic on grey or black frames
- Cracked sealant at the sill ends
- Black, perished sealant on frames
How we handle window mastic in Park Gate
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. We seal one or both, depending on what’s needed. We work on timber windows & doors, uPVC windows and window sills, and common reasons people get in touch are water coming in at the bottom corners of a door and a bead that doesn’t match the frame.
Homes in small places like Park Gate often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
You get a one-year guarantee, the same in Park Gate as everywhere else we work.
- Location
- Park Gate (SO31)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a morning for a couple of windows and a door. In a small place like Park Gate, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- 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.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Clear items away from the joints we’re working on
- On commercial sites, let us know about site rules
- Mention any tricky access
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Related advice
FAQs for Park Gate
Do you work for landlords with property near Swanwick station?
Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Do you cover smaller places like Park Gate?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
How long does it take to reseal the windows on a house?
That depends on the number of frames, how they’re reached and the state of the old mastic. You will know the timing when we quote.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Do you have insurance?
Yes. We are fully insured.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
What window mastic looks like in Park Gate
Park Gate is within about 3 miles of 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. 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 site and facilities teams at buildings such as Park Gate Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Swanwick station, renewing tired window mastic between tenants heads off draught and damp complaints.
Park Gate is about 3 miles south-east of Hedge End, in Hampshire. We provide window mastic to homeowners, landlords and businesses in Park Gate and the surrounding area, as part of our work across Hampshire. Park Gate is one of 683 places in Hampshire we cover for window mastic. There’s also a page for Southampton, roughly 6 miles from Park Gate.
We work across SO31 for window mastic and the streets around it. We cover properties on Station Road, Botley Road and Middle Road and the roads around them. Other places close to Park Gate include Sarisbury (1 mile west), Locks Heath (1 mile south), Segensworth (1 mile east), Whiteley (1 mile north-east) and Swanwick (1 mile north-west). Further out, we also cover Winchester (13 miles north), Gosport (7 miles south-east), Havant (12 miles east), Eastleigh (7 miles north-west), Fareham (3 miles south-east) and Horndean (11 miles east).
What’s near Park Gate
Typical jobs here are in homes near Brookfield Community School and Language College, among other places. Park Gate has its own railway station: Swanwick station. Other landmarks nearby include Bursledon Brickworks Industrial Museum (1.4 miles north-west) and St Andrew's Castle (2.6 miles south-west). Open spaces near Park Gate include Swanwick Lakes.
What affects the cost of window mastic
For a quick quote, just ask. The main things that affect it are:
- The number and length of the joints
- Which sealant suits the joint
- Whether there’s mould to deal with
- How many areas need sealing
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
What we need to know
To make quoting easier, let us know:
- Photos by email, if that’s easy
- The address or postcode of the job
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved.
Landlord and commercial work in Park Gate
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we’re fully insured.
Why it’s worth doing now in Park Gate
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. In a small place like Park Gate, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- We never seal over old sealant
- We agree the colour with you first
- Neat joints and a tidy finish
- A sealant colour to suit the surroundings
Read our cost guide and what customers say.
How the job changes by surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- A frame that has rotted at the joint
- Broken hinges, locks or handles
- Draughts through the window seals rather than the frame
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before you book.
Where we work in Park Gate
- uPVC windows
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Composite doors
- Window sills
Towns and villages near Park Gate
What else we do in Park Gate
Common problems we fix in Park Gate
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
Any of these means the joints need attention:
- Mastic that has split away from the wall
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
Homes close to St Margaret Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- How long the guarantee is
- When the joint can take water or movement
- Who does the work, and how experienced they are
- Is the old sealant removed completely?