Hampshire · England
Park Gate Sand Mastic
Professional sand mastic in and around Park Gate, with every bit of old sealant taken out first and a one-year guarantee.
- Window mastic to renew ahead of painting
- Mastic round period door frames that has failed
- Gaps between timber frames and stone or brick
How we handle sand mastic in Park Gate
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on brick reveals, period & listed homes and timber door frames, and common reasons people get in touch are gaps between timber frames and stone or brick and gaps round a timber door in stone or brick.
Around Park Gate, 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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Park Gate (SO31)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Places near Park Gate
Other services in Park Gate
How it works
We keep the work tidy and contained to the joints we are treating, so you can carry on as normal. The job usually takes a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. Somewhere as small as Park Gate, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
Getting a quote
For sand mastic in Park Gate, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Read more
How we quote for sand mastic
Your quote is based on your job. We take into account:
- Any mould that needs treating
- Which sealant suits the joint
- The number and length of the joints
- How many areas need sealing
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- If someone has resealed it before
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or send us an email.
Sand mastic in Park Gate: local notes
Park Gate is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Park Gate Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around St Margaret Mary, the joint between an old wall and a newer frame is normally the first place rain gets in.
Park Gate is about 3 miles south-east of Hedge End, in Hampshire. Every kind of property in Park Gate is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Park Gate is one of 683 towns and villages in Hampshire where we work for sand mastic. We also work in Southampton, around 6 miles away.
Work in SO31 works the same way as everywhere else we cover. Streets in the area include Station Road, Botley Road and Middle Road, all of which we cover. Close by, we work in 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).
Landmarks near Park Gate
Typical jobs here are in homes near Brookfield Community School and Language College. Park Gate has its own railway station: Swanwick station. Well-known places in the area 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.
Do you need sand mastic in Park Gate?
Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.
These are the problems we are asked about most:
- Mastic worn away on windows facing the weather
- Open joints round the window box
- Mastic round period door frames that has failed
- Mastic dropping out of the joint
If you let a flat or house near Swanwick station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before you book
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
- What product goes in the joint
- Is VAT in the price?
Leave it or put it right?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. In a small place like Park Gate, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
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.
Why Park Gate clients choose us
- We leave the area clean and tidy
- 4.9 on Google from 180+ five-star reviews
- Quality sealants from Arbo and Everbuild
- Fully insured
Read how sealant jobs are priced and our reviews.
Questions from Park Gate
Do you work for landlords with property near Swanwick station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Will you come out to Park Gate?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is generally more efficient.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Can I choose the sealant colour?
In most cases you can choose. We will tell you which colours the right product comes in and agree one before work begins.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Have rotten timber repaired before new mastic goes in
- Ask the planning authority about consent for listed or conservation-area homes
- Go gently near the mastic when preparing windows
- Keep modern sealant off the mastic
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.