Hampshire · England
Oliver's Battery Window Mastic
Window mastic across Oliver's Battery and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
- Rain getting in at the frame or under the sill
How we handle window mastic in Oliver's Battery
Around Oliver's Battery we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We’re often asked to deal with untidy mastic left by window fitters and draughty joints inside around the window, on patio & French doors, composite doors and aluminium frames.
Around Oliver's Battery, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Each job carries a 12-month guarantee, large or small.
- Location
- Oliver's Battery (SO22)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for window mastic
There’s no set price list, because no two jobs are the same. What we look at:
- The old material and how stubborn it is
- The size of the job
- The product the joint needs
- Any mould that needs treating
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
If you’re in Oliver's Battery and need window mastic, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’re set on DIY, put the effort into 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.
Landlords, agents and businesses in Oliver's Battery
Housing providers, facilities teams and property managers book us too in Oliver's Battery and across Hampshire. Several sites can go on one quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Towns and villages near Oliver's Battery
Other services in Oliver's Battery
What window mastic looks like in Oliver's Battery
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Saint Mark's, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Olivers Battery Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Shawford station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Oliver's Battery is about 2 miles south-west of Winchester, in Hampshire. From the centre of Oliver's Battery to the outskirts, window mastic is available for homes and businesses alike. Our Hampshire coverage runs to 683 places, Oliver's Battery among them. Our Southampton page covers work nearby.
Our applicators cover all of the SO22 postcode area for window mastic and the streets around it. That includes homes and businesses on Momford Road, Austen Avenue and Sunnydown Road and the roads around them. You will find Oliver's Battery on the A3090, so it’s easy for us to get to with everything needed for window mastic. Other places close to Oliver's Battery include Badger Farm (1 mile east), Stanmore (1 mile north-east), St Cross (1 mile east), Compton (2 miles south) and Winchester (2 miles north-east). Within a short drive, we also cover Eastleigh (5 miles south), Fareham (15 miles south-east), Andover (13 miles north-west), Totton (11 miles south-west), Chandler's Ford (4 miles south) and Hedge End (9 miles south).
What’s near Oliver's Battery
Around Oliver's Battery, our work takes us to homes and buildings near St. Cross Park and Kings' School. The closest station to Oliver's Battery is Shawford station, roughly 1.9 miles south-east. Well-known places in the area include Winchester Castle (1.8 miles north-east) and Balfour Museum of Hampshire Red Cross History (0.9 miles north). The countryside around Oliver's Battery includes Hockley Meadows and Twyford Down.
FAQs for Oliver's Battery
Is Oliver's Battery in your area for window mastic?
Yes. Our work covers London and the South East, and Oliver's Battery is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Is Oliver's Battery within the area you cover?
Yes. Oliver's Battery is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s coming through the window seals, we’ll tell you.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages to suit the site.
Do you work on first-floor windows?
Generally, yes. Access is planned before work begins, so mention the height and anything in the way.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a handful of frames, longer for a whole house from start to finish. In a small place like Oliver's Battery, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Get a quote
Want a quote for window mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before any work starts.
Related advice
Surface by surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
What happens if it’s left?
The work is quick compared with the damage it prevents: the visit takes a few hours for a few frames, or a day or more for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Older cottages and farmhouses around Oliver's Battery can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
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. You will have a clear quote before any work starts.
Why choose Mr Mastic in Oliver's Battery
- Any old sealant cut out fully, not covered over
- Approved under the ARBOMaster scheme
- Anti-fungal sanitary silicone in wet areas
- Over 20 years’ experience
Take a look at how sealant jobs are priced and our reviews.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Walk round the house once a year and look at the joints
- Don’t use solvent cleaners on the joint
- Keep paint and stain on wooden frames in good order
- Air rooms to keep condensation down around windows
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
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 it pays to reseal before that happens.