Hampshire · England
Bidden Window Mastic
Window mastic across Bidden and nearby, with every bit of old sealant taken out first.
- Gaps left after new windows were fitted
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
Frames and glazing around Bidden
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Hook station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around Church of St Mary, the joint between an old wall and a newer frame is generally the first place rain gets in.
Bidden is about 4 miles south of Hook, in Hampshire. Jobs in Bidden get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Hampshire coverage runs to 683 places, Bidden among them. For nearby work, see our Reading page, about 15 miles away.
We work across the RG25 postcode area for window mastic and the streets around it. Local streets include Bidden Road, Elder Dell and Meadowside. Other places close to Bidden include Little Hoddington (1 mile west), South Warnborough (1 mile south-east), Long Sutton (2 miles east), Greywell (2 miles north-east) and Up Nately (2 miles north). Further out, we also cover Basingstoke (5 miles north-west), Farnborough (11 miles north-east), Fleet (7 miles north-east), Aldershot (10 miles east), Alton (6 miles south) and Yateley (10 miles north-east).
Near you in Bidden
Locally, jobs take us to homes and businesses close to Hoddington Arms Public House, among other places. The nearest railway station is Hook station, about 3.6 miles north. Well-known places in the area include Gliding Heritage Centre (3.4 miles south-west) and Odiham Castle (2.5 miles north-east). Green spaces nearby include The Mill Field and Holybourne Hill.
About our window mastic in Bidden
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We work on window sills, patio & French doors and uPVC windows, and common reasons people get in touch are cracked internal joints between frame and plaster and draughts coming in around windows and doors.
Outdoor sealant needs dry, clean surfaces, so work on frames around Bidden is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months.
- Location
- Bidden (RG25)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Common problems we fix in Bidden
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Most people get in touch after spotting something like this:
- Untidy mastic left by window fitters
- Rain getting in at the frame or under the sill
- Hard, cracked sealant around windows
- Black, perished sealant on frames
Managing a site like Robert May's School? Then its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- Whether VAT is included
- What guarantee comes with the work
- How the surfaces are prepared before sealing
- What product goes in the joint
Why deal with it now?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Older cottages and farmhouses around Bidden can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
Why choose Mr Mastic in Bidden
- One-year guarantee on every job
- We agree the colour with you first
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
Take a look at how sealant jobs are priced and customer reviews.
The process
You do not need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours for a few frames, or a day or more for a whole house for a typical job. In a small place like Bidden, access is generally 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.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Tell us about any water getting in
- Mention any parking rules near the property
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Read more
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Faulty window hardware
- A failed sealed unit that has misted up
- A door that needs adjusting, rehanging or new seals
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Timber windows & doors
- uPVC windows
- Composite doors
- Aluminium frames
- Patio & French doors
- Window sills
What else we do in Bidden
How we quote for window mastic
We quote each job individually. These are the things that affect it:
- The amount of work
- Which sealant suits the joint
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
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.
Asking for a quote
To make quoting easier, let us know:
- Whether it has been sealed before
- What’s wrong with the joints now
- Where the property is
- Roughly how big the job is
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Surface by surface
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain can’t run into the wall.
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.
Aftercare tips
To keep the joints looking good and working properly:
- Avoid blasting the frames with a pressure washer
- Wipe condensation off the frames
- Don’t paint over the silicone
- Wash the frames with mild soapy water
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. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Your questions about window mastic in Bidden
I let a flat near Hook station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Is Bidden within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit, while a whole house takes longer. We confirm the timing with your quote.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Can you reach windows above the ground floor?
Usually, yes. Access is planned before any work starts.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Do you guarantee window mastic?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
