Hampshire · England
Window & door mastic in Bishopstoke, Hampshire
Window mastic in Bishopstoke from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Hard, cracked sealant around windows
- Sealant in the wrong colour for the frame
- Cracked internal joints between frame and plaster
Aftercare tips
After the cure time, these simple habits help:
- Walk round the house once a year and look at the joints
- Clean frames with a soft cloth and soapy water
- Repaint timber before it’s bare
- Don’t use solvent cleaners on the joint
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just call 0345 464 0079 or drop us an email.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
About our window mastic in Bishopstoke
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. If you are dealing with gaps left after new windows were fitted and gaps where the sill meets the wall, we can put it right, on window sills, composite doors and aluminium frames alike.
In smaller places like Bishopstoke, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Each job carries a 12-month guarantee.
- Place
- Bishopstoke (SO50)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Window mastic in Bishopstoke: local notes
With historic houses such as South Stoneham House (about 3 miles south-west) nearby, there’s older building stock in the area around Bishopstoke as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
For an older house near a landmark such as St Paul's, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Eastleigh station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Bishopstoke is about 1 mile east of Eastleigh, in Hampshire. Every kind of property in Bishopstoke 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.
All of SO50 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Guest Road, Manor Road and Sayers Road or anywhere close by, our applicators can take on the job. Other places close to Bishopstoke include Eastleigh (1 mile west), Crowdhill (1 mile north-east), Lord's Wood (1 mile north), Highbridge (2 miles north) and Fisher's Pond (2 miles north-east). Further out, we also cover Winchester (6 miles north), Gosport (14 miles south-east), Fareham (10 miles south-east), Horndean (14 miles east), Totton (8 miles south-west) and Chandler's Ford (3 miles north-west).
Local landmarks in Bishopstoke
In Bishopstoke, that means homes and buildings near Lakeside Country Park, The King's School Senior and Wyvern Technology College and the streets around them. The closest station to Bishopstoke is Eastleigh station, roughly 1 mile west of the centre. Well-known places in the area include Eastleigh Museum (1.1 miles west) and Moorgreen Hospital (2.8 miles south). Green spaces nearby include Flexford Nature Reserve.
Do you need window mastic in Bishopstoke?
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
The problems people generally mention when they call are:
- Draughty joints inside around the window
- Cracked or shrunken mastic around the frame
- Whistling draughts around closed windows
- Cracked sealant at the sill ends
Managing a site like Stoke Park Junior School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- Whether VAT is included
- Are they insured?
- How long to leave it before use
- How hidden problems are handled
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Also near Bishopstoke
Other services in Bishopstoke
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Your questions about window mastic in Bishopstoke
I let a flat near Eastleigh station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Do you cover smaller places like Bishopstoke?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or drop us an email.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Can you do upstairs windows?
Yes, where it’s safe. Higher or awkward frames may need extra access, and we will confirm what’s needed.
What we cannot put right
In fairness, some problems need a different trade:
- Faulty window hardware
- Soft or decayed wood in the frame
- Draughts through the window seals rather than the frame
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- uPVC windows
- Timber windows & doors
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of frames, longer for a whole house. Parking around Bishopstoke is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
- Mention any tricky access
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.
Read more
What happens if it’s left?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. In an older home around Bishopstoke, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
Why Bishopstoke customers choose us
- White, clear, grey or another colour, product permitting
- ARBOMaster approved applicator
- We agree the colour with you first
- Sealant colour chosen to suit
See our cost guide or customer reviews.