Hampshire · England
Window Mastic in Hill Brow
Professional window mastic in and around Hill Brow, with old sealant always removed completely.
- Draughty joints inside around the window
- Mastic that’s falling out in pieces
- Cracked or shrunken mastic around the frame
Windows and doors in Hill Brow
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.
For landlords with property near Liss station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like Liss Junior School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Hill Brow is about 3 miles north-east of Petersfield, in Hampshire. We provide window mastic to homes and businesses in Hill Brow. We cover 683 towns and villages across Hampshire. For nearby work, see our Portsmouth page.
We cover every part of the GU33 postcode area for window mastic and the streets around it. You will find streets such as London Road, Plantation Road and Malvern Road, all of which we cover. You will find Hill Brow on the B2070, which makes it straightforward to reach with everything needed for window mastic. We also cover the places around Hill Brow: Durford Wood (1 mile west), Liss (1 mile north-west), West Liss (1 mile north-west), Rake (1 mile north-east) and The Mint (1 mile north). Within a short drive, we also cover Havant (13 miles south), Horndean (10 miles south-west), Alton (9 miles north-west), Waterlooville (12 miles south-west), Petersfield (3 miles south-west) and Purbrook (13 miles south-west).
Local landmarks in Hill Brow
In Hill Brow, that means homes and buildings near Whistle Stop pub, among other places. For rail, the closest station is Liss station, about 1.1 miles north-west of the centre. Well-known places in the area include Bear Museum (3.4 miles south-west) and Petersfield Community Hospital (3.5 miles south-west). Not far away are Liss Riverside Railway Walk South and Wheatham Hill.
Window mastic in Hill Brow
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. Common call-outs are for white mastic on grey or black frames and gaps between the frame and the inside reveal, on timber windows & doors, composite doors and patio & French doors.
In a village or hamlet like Hill Brow, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Whatever the size of the job, you get the same 12-month guarantee in Hill Brow and across Hampshire.
- Place
- Hill Brow (GU33)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Hill Brow: your questions answered
Is Hill Brow in your area for window mastic?
Yes. Our work covers London and the South East, and Hill Brow is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Liss station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Should I try DIY first?
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.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
Can you reach windows above the ground floor?
Yes, where it’s safe. For high or awkward windows, we’ll tell you what access is needed.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Is the work guaranteed?
Yes, for 12 months. A yearly look at the joints helps them last.
Why act early in Hill Brow
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Around Hill Brow, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What you get with us
- We are fully insured
- Rated 4.9 stars on Google
- White, clear, grey or another colour, product permitting
- Neat joints and a tidy finish
Read how sealant jobs are priced and customer reviews.
Surface by surface
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We’ll point out any rot we find, as a joiner will need to deal with it.
How to look after the new joints
To keep the joints looking good and working properly:
- Paint up to the joint, not over it
- Use gentle cleaners on frames and sealant
- Wipe condensation off the frames
- Avoid blasting the frames with a pressure washer
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.
Places near Hill Brow
Other services in Hill Brow
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
When to call us in Hill Brow
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Look out for any of the following:
- Old mastic that has gone black or come away
- Cracked or shrunken mastic around the frame
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
Homes close to Rake Mission Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- How hidden problems are handled
- How long the guarantee is
- Is VAT in the price?
- What the cure time is
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes anything from an hour or two to a full day, depending on how many frames there are. In a small place like Hill Brow, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Read more
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
