Hampshire · England
Window & door mastic in Borden, Hampshire
Window and door frames in Borden need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Rain getting in at the frame or under the sill
- Rushed sealant from a window installation
- Draughts coming in around windows and doors
What we cannot put right
We won’t take on work that won’t last, so here’s what sealant cannot put right:
- Rotten timber, which needs a joiner first
- A failed sealed unit that has misted up
- Broken hinges, locks or handles
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Composite doors
- Patio & French doors
How we handle window mastic in Borden
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. If you have sealant in the wrong colour for the frame and gaps where the sill meets the wall, we can put it right, whatever the surface.
Somewhere as small as Borden, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
All our work comes with our 12-month guarantee.
- Place
- Borden (GU30)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Windows and doors in Borden
With historic houses such as Cowdray House (about 4.4 miles south-east) nearby, there’s older building stock in the area around Borden as well as newer homes. 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. The South East is one of 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. For an older house near a landmark such as Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Borden is about 5 miles east of Petersfield, in Hampshire. We carry out window mastic for householders, landlords and businesses in Borden and nearby, as part of our work across Hampshire. Across Hampshire, we cover 683 places, Borden among them. For nearby work, see our Portsmouth page.
Work in GU30 is quoted and booked the same way as anywhere else. Other places close to Borden include Trotton Marsh (1 mile east), Rogate (1 mile south-west), Chithurst (1 mile south-east), Milland (2 miles north-east) and Rake (2 miles north-west). Within a short drive, we also cover Havant (13 miles south-west), Horndean (11 miles south-west), Alton (11 miles north-west), Waterlooville (13 miles south-west), Petersfield (5 miles west) and Purbrook (14 miles south-west).
Landmarks near Borden
The nearest railway station is Liss station, roughly 3.6 miles north-west. A little further out are Midhurst Community Hospital (4.1 miles south-east). The countryside around Borden includes Wheeler's Down and Iping and Stedham Commons.
Towns and villages near Borden
More services for Borden
How it works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a few frames, or a day or more for a whole house and we leave things clean and tidy. For a village or hamlet like Borden, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- 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.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
- Clear items away from the joints we are working on
How to get a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Advice
Common questions in Borden
Is Borden in your area for window mastic?
Yes. Our work covers London and the South East, and Borden is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Do you work for landlords with property near Liss station?
Yes. We work for letting agents and landlords as well as homeowners. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Are you insured?
Yes, we are fully insured.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Can you seal the gap between the frame and the plaster indoors?
Yes. Inside, the joint between frame and plaster is sealed neatly.
How the job changes by surface
Aluminium frames
Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the sealant goes in between frame and wall.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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 doesn’t work out, we can still put it right.
Why act early in Borden
Not every sealant suits a window. Interior caulk and bathroom silicone are not made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Where a wall is exposed, as many are in small places like Borden, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why us?
- One-year guarantee on every job
- Sealant colour chosen to suit
- ARBOMaster approved applicator
- We agree the colour with you first
Aftercare tips
Good habits help new joints last longer. A few tips:
- Avoid blasting the frames with a pressure washer
- Check the mastic once a year
- Do not paint over the silicone
- Clean frames with a soft cloth and soapy water
Keep the new mastic undisturbed while it cures, following the cure time we give you. Don’t point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
