Hampshire · England
Window Mastic in Timsbury
Problem with your window and door frames in Timsbury? We remove the old material, prepare the joints and seal them properly.
- Draughts coming in around windows and doors
- Gaps between the frame and the inside reveal
- Hard, cracked sealant around windows
How we quote for window mastic
For a quick quote, just ask. What matters most is:
- How much there is to do
- The old material and how stubborn it is
- How many areas need sealing
- Whether there’s mould to deal with
What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Asking for a quote
When you contact us, it’s useful to know:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- A few photos by email, if you can
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
How we handle window mastic in Timsbury
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a one-year guarantee on the work. We work on window sills, timber windows & doors and composite doors, and people most often call us about cold air getting in at the frame edge and draughty joints inside around the window.
Homes in small places like Timsbury often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Timsbury (SO51)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Keep drainage slots and sill grooves clear
- Paint up to the joint, not over it
- Check the mastic once a year
- Keep solvents and bleach off the sealant
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
What we do, step by step
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Timsbury, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Let us know about parking restrictions
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
Ask for a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Read more
Surface by surface
Composite doors
A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. We’ll point out any rot we find, as that is a job for a joiner.
Questions from Timsbury
Do you cover Timsbury for window mastic?
Yes, Timsbury is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Mottisfont & Dunbridge station?
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’ll give you a fixed price before we start.
How much does window mastic cost in Timsbury?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or email us with a short description of the job.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
How long does it take to reseal the windows on a house?
A few frames take a few hours, while a whole house takes longer. You’ll get a timescale with the quote.
Where are you based?
We work from Crawley. We cover Timsbury and the rest of Hampshire, along with the rest of our area.
Places near Timsbury
Other services in Timsbury
Why deal with it now?
The work is quick compared with the damage it prevents: it takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. Older cottages and farmhouses around Timsbury can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why Timsbury customers choose us
- Rated 4.9 stars on Google
- A 12-month guarantee on all work
- Full insurance on every job
- Quality sealants from Arbo and Everbuild
Take a look at what affects the cost and our reviews.
When it is not the sealant
Before booking, it’s worth knowing the limits:
- A sash or casement that won’t close properly
- Worn gaskets, brush seals or a door that has dropped
- A frame that has rotted at the joint
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- uPVC windows
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
Timsbury homes and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Mottisfont Abbey (about 1.6 miles north-west) nearby, there’s older building stock in the area around Timsbury as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For an older house near a landmark such as Church of St Andrew, the joint between an old wall and a newer frame is usually the first place rain gets in. Letting a property close to Mottisfont & Dunbridge station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Managing a site like Stanbridge Earls School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Timsbury is about 3 miles north-west of Romsey, in Hampshire. Wherever you are in the SO51 postcode area, our applicators can take on window mastic. Timsbury is one of 683 places in Hampshire where we work for window mastic. For nearby work, see our Southampton page, about 9 miles away.
Work in SO51 works the same way as everywhere else we cover. Local streets include Mannyngham Way, The Milburns and New Road. Close by, we work in Michelmersh (1 mile north), Kimbridge (1 mile west), Stonymarsh (1 mile north-west), Mottisfont (2 miles north-west) and Dunbridge (2 miles west). Within a short drive, we also cover Winchester (9 miles east), Eastleigh (8 miles south-east), Andover (13 miles north), Totton (7 miles south), Chandler's Ford (6 miles south-east) and Hedge End (12 miles south-east).
Landmarks near Timsbury
Around Timsbury, our work takes us to homes and buildings near The Malthouse Inn and The Romsey School. The closest station to Timsbury is Mottisfont & Dunbridge station, about 1.8 miles west. A little further out are Romsey Community Hospital (2.6 miles south-east) and King Johns House (2.5 miles south). Green spaces nearby include Emer Bog and Baddesley Common.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
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 fails, we can still redo it.