Hampshire · England
Window & door mastic in Bishop's Waltham, Hampshire
Window mastic across Bishop's Waltham and nearby, with old sealant always removed completely and a 12-month guarantee.
- Mastic that’s falling out in pieces
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
About our window mastic in Bishop's Waltham
Frames and walls don’t 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. We work on aluminium frames, composite doors and timber windows & doors, and common reasons people get in touch are sealant in the wrong colour for the frame and damp patches on the reveal after heavy rain.
Many houses in smaller places like Bishop's Waltham have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Bishop's Waltham (SO32)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Bishop's Waltham
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Nearby places to Bishop's Waltham
Also in Bishop's Waltham
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Faulty window hardware
- A failed sealed unit that has misted up
- Rotten timber, which needs a joiner first
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
- Aluminium frames
- Timber windows & doors
What affects the quote in Bishop's Waltham
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- How much there is to do
- Whether old sealant or filler has to be cut out
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
What we need to know
To make quoting easier, let us know:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- Any access issues, like height or stairs
- Roughly how big the job is
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Common questions in Bishop's Waltham
Do you cover smaller places like Bishop's Waltham?
Yes. Bishop's Waltham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Botley station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
How do I get a quote for window mastic in Bishop's Waltham?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or email us with a short description of the job.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before work begins.
Window mastic in Bishop's Waltham: local notes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Botley station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings such as Bishop's Waltham Junior School, its window and door frames need their mastic kept sound, just like a home’s. 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.
Bishop's Waltham is about 5 miles north-east of Hedge End, in Hampshire. Jobs in Bishop's Waltham get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Bishop's Waltham is one of 683 places in Hampshire we cover for window mastic. We also work in Southampton, around 8 miles away.
Our applicators cover all of the SO32 postcode area for window mastic and the streets around it. If you need window mastic at a property on High Street, St Georges's Square and Station Road or a nearby road, our applicators can take on the job. Main roads around Bishop's Waltham include the B2177 and B3035. Close by, we work in Ashton (1 mile north), Waltham Chase (2 miles south), Durley Street (2 miles west), Wintershill (2 miles west) and Upham (2 miles north-west). Further out, we also cover Winchester (8 miles north-west), Gosport (11 miles south), Havant (12 miles south-east), Eastleigh (6 miles west), Fareham (7 miles south) and Horndean (9 miles east).
Around Bishop's Waltham
We work in homes and buildings around Swanmore College of Technology and The Crown Hotel, among other places. The closest station to Bishop's Waltham is Botley station, roughly 3.3 miles south-west. Other landmarks nearby include Bishop's Waltham Museum (less than half a mile south-west) and Moorgreen Hospital (5.1 miles west). Not far away are Bishops Waltham Branch LNR and Beacon Hill.
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a morning for a couple of windows and a door. A visit to Bishop's Waltham is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- 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
- Mention any parking rules near the property
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear quote.
Advice
Surface by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
Leave it or put it right?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. In an older home around Bishop's Waltham, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why us?
- Colour picked to suit the job
- A 12-month guarantee on all work
- Tidy, careful work
- You choose the colour before work begins
See what affects the cost and what customers say.
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Avoid blasting the frames with a pressure washer
- Repaint timber before it’s bare
- Keep solvents and bleach off the sealant
- Walk round the house once a year and look at the joints
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.