Hampshire · England
Window Mastic in Upper Wield
Professional window mastic in and around Upper Wield, with old sealant always removed completely and a 12-month guarantee.
- Hard, cracked sealant around windows
- Mastic that’s falling out in pieces
- Water coming in at the bottom corners of a door
Window mastic in Upper Wield
Frames and walls do not move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you have cracked sealant at the sill ends and cracked or shrunken mastic around the frame, we can help.
Outdoor sealant needs dry, clean surfaces, so work on frames around Upper Wield is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
All our work is covered by a 12-month guarantee.
- Where
- Upper Wield (SO24)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Soft or decayed wood in the frame
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
What we seal
- Window sills
- uPVC windows
- Timber windows & doors
- Composite doors
- Patio & French doors
- Aluminium frames
What happens on the day
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. In a small place like Upper Wield, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Clear items away from the joints we’re working on
- Tell us if parking is tricky
How to get a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Related advice
Surface by surface
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Patio & French doors
Heavy door frames can move more than windows. A flexible sealant copes with that, where a rigid one would crack.
Why deal with it now?
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Around Upper Wield, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Upper Wield customers choose us
- 180+ five-star Google reviews
- White, clear, grey or coloured to suit, where the product allows
- We leave the area clean and tidy
- 20+ years of sealant experience
See our cost guide and customer reviews.
Windows and doors in Upper Wield
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Hall Place (about 2.2 miles east) nearby, there’s older building stock in the area around Upper Wield as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In and around Upper Wield, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Upper Wield is about 5 miles west of Alton, in Hampshire. We carry out window mastic for homes and businesses in Upper Wield and nearby. Upper Wield is one of 683 towns and villages in Hampshire where we work for window mastic. Southampton is on our list too, about 20 miles from Upper Wield.
Here we cover the SO24 postcode area for window mastic. Neighbouring places we cover for window mastic include Preston Candover (2 miles north-west), Bighton (3 miles south-west), Brown Candover (3 miles west), Totford (4 miles west) and Old Alresford (4 miles south-west). Within a short drive, we also cover Basingstoke (8 miles north), Winchester (11 miles south-west), Fleet (14 miles north-east), Alton (5 miles east), Petersfield (12 miles south-east) and Tadley (15 miles north).
Around Upper Wield
Around Upper Wield, our work takes us to homes and buildings near The Yew Tree pub. Nearby you’ll also find Barton Castle (0.7 miles south-west) and Alton Community Hospital (4.8 miles east). The countryside around Upper Wield includes King's Hill.
Also near Upper Wield
Also in Upper Wield
What affects the quote in Upper Wield
You’ll get a clear quote before work begins. It’s based on:
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- Whether there’s mould to deal with
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
When you contact us, it’s useful to know:
- Any access issues, like height or stairs
- Where the property is
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.
Do you need window mastic in Upper Wield?
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Look out for any of the following:
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
- White mastic on grey or black frames
- Cracked internal joints between frame and plaster
In the older streets around Church of St James, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- What preparation is included
- What happens if the job turns out different
- Whether the sealant suits the joint
- What the cure time is
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Make sure the drainage slots are not blocked
- Look round the frames every year or so
- Wipe condensation off the frames
- Keep paint off silicone joints
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Common questions in Upper Wield
What guarantee comes with window mastic in Upper Wield?
All our work, in Upper Wield and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Upper Wield within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can new sealant go over the old?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Will new mastic stop draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Are you insured?
Yes. Full insurance covers our work.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.