Hampshire · England
Window & door mastic in Oakshott, Hampshire
Specialist window mastic for Oakshott: careful preparation, the right product and tidy work. Ask us for a quick quote.
- A bead that does not match the frame
- Gaps between the frame and the inside reveal
- Gaps left after new windows were fitted
Window mastic in Oakshott, done properly
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on aluminium frames, uPVC windows and patio & French doors, and the jobs we see most are sealant in the wrong colour for the frame and gaps left after new windows were fitted.
In a village or hamlet like Oakshott, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Oakshott (GU33, GU32)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
The process
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Oakshott needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or send us an email.
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How to look after the new joints
Looking after new joints is easy:
- Check the mastic once a year
- Ventilate rooms so frames don’t stay wet inside
- Keep drainage slots and sill grooves clear
- Paint up to the joint, not over it
Most silicone sealants will not take paint, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
When it isn’t the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Surfaces we seal
- Window sills
- Composite doors
- Timber windows & doors
- Patio & French doors
- uPVC windows
- Aluminium frames
Why it’s worth doing now in Oakshott
The work is quick compared with the damage it prevents: the visit takes anything from an hour or two to a full day, depending on how many frames there are. Wait for damp to appear and there may be plaster and decorating to sort out too. Older cottages and farmhouses around Oakshott can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Why choose Mr Mastic in Oakshott
- Arbo and Everbuild products
- Experience in homes, commercial sites and hotels
- White, clear, grey or another colour, product permitting
- We leave the area clean and tidy
Take a look at what affects the cost or our reviews.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Places near Oakshott
Other services in Oakshott
Questions from Oakshott
Do you cover Oakshott for window mastic?
Yes, Oakshott is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Liss station?
Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Is the new sealant paintable?
Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
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. Brands we use include Arbo and Everbuild.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Oakshott homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Peter and St Paul, the joint between an old wall and a newer frame is usually the first place rain gets in. If you let a flat or house near Liss station, renewing tired window mastic between tenants heads off draught and damp complaints.
Oakshott is about 3 miles north of Petersfield, in Hampshire. If you need window mastic in Oakshott, please phone 0345 464 0079 or send us an email for a quick quote. We cover Hampshire from our Crawley base, Oakshott included. Across Hampshire, we cover 683 places, Oakshott among them. Portsmouth is on our list too, around 17 miles away.
Our applicators cover all of the GU33 and GU32 postcode area for window mastic. We also cover Hawkley (1 mile north-east), Steep Marsh (1 mile south), Lower Green (1 mile north), Steep (1 mile south) and High Cross (2 miles south-west). Further out, we also cover Havant (13 miles south), Horndean (10 miles south), Alton (7 miles north), Waterlooville (12 miles south), Petersfield (3 miles south) and Purbrook (13 miles south).
What’s near Oakshott
We work in homes and buildings around Hawkley Inn, among other places. For rail, the closest station is Liss station, roughly 2.2 miles east. A little further out are Bear Museum (3.1 miles south) and Petersfield Community Hospital (2.9 miles south). The countryside around Oakshott includes Liss Riverside Railway Walk South and Wheatham Hill.
Quotes for window mastic in Oakshott
The price is agreed before any work begins. It’s based on:
- Any mould that needs treating
- How much there is to do
- Whether the work is at height
- Any working-time requirements on site
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. You will know the price before we begin.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Photos by email, if that’s easy
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.