Hampshire · England
Hollywater Window Mastic
Window mastic in Hollywater from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cold air getting in at the frame edge
- Untidy mastic left by window fitters
- White mastic on grey or black frames
Signs you need window mastic in Hollywater
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The problems people normally mention when they call are:
- Hard, cracked sealant around windows
- Gaps where the sill meets the wall
- Gaps between the frame and the inside reveal
- Rain getting in at the frame or under the sill
Letting a property close to Liphook station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- What guarantee comes with the work
- What happens if they find a problem under the old sealant
- Is VAT in the price?
- What the cure time is
How we handle window mastic in Hollywater
From a single sill to a whole house of windows, you will get a clear quote before work begins. To get one, phone 0345 464 0079 or send us an email with the number of frames and any access details for window mastic in Hollywater. Common call-outs are for cracked internal joints between frame and plaster and mastic that’s falling out in pieces, across patio & French doors, window sills and aluminium frames.
In a village or hamlet like Hollywater, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee.

- Location
- Hollywater (GU35)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Also in Hollywater
Questions from Hollywater
Is Hollywater in your area for window mastic?
Yes. We work across London and the South East, and Hollywater is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
Do you work for landlords with property near Liphook station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Do you guarantee window mastic?
Yes, with our one-year guarantee. Keeping drainage clear and checking the joints yearly helps them last.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Can you quote for more than one area?
Yes. Just list everything you need.
What does window mastic cost?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or drop us an email with a short description of the job.
How it works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a morning for a couple of windows and a door. Somewhere like Hollywater needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Let us know about parking restrictions
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
How to get a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
What affects the cost of window mastic
Your quote is based on your job. We look at:
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- The number of rooms or windows
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- Roughly how big the job is
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job.
Windows and doors in Hollywater
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to St Mark's Sacred Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Woodlea Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Hollywater is about 6 miles south-east of Alton, in Hampshire. Homes, rented property, offices and hotels in Hollywater can book us for window mastic, old or new, large or small. The work is guaranteed for a year. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. For nearby work, see our Portsmouth page, about 23 miles away.
Here we cover the GU35 postcode area for window mastic. That includes homes and businesses on Hollywater Road and Liphook Road. If you’re just outside Hollywater, we cover Standford (1 mile north-east), Whitehill (1 mile west), Deadwater (1 mile north), Bordon (1 mile north-west) and Lindford (1 mile north). Larger places within reach include Farnborough (14 miles north), Fleet (12 miles north), Horndean (15 miles south-west), Aldershot (11 miles north), Alton (6 miles north-west) and Petersfield (8 miles south-west).
Near you in Hollywater
Typical jobs here are in homes near Mill Chase Academy and the streets around them. The closest station to Hollywater is Liphook station, about 3.1 miles south-east of the centre. Well-known places in the area include The Romany Museum (3.9 miles west) and Chase Community Hospital (0.6 miles north-west). Open spaces near Hollywater include Wheeler's Down and Deadwater Valley.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
How the job changes by surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We’ll tell you which suits your home.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so they get particular care.
Landlords, agents and businesses in Hollywater
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
When it is not the sealant
To be straight with you, some problems need a different trade:
- Damp problems in the wall away from the window
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Aluminium frames
- uPVC windows
- Patio & French doors
- Window sills
- Timber windows & doors
- Composite doors
