Hampshire · England
Window & door mastic in Rockbourne, Hampshire
Problem with your window and door frames in Rockbourne? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
- Rain getting in at the frame or under the sill
Different surfaces, different methods
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We’ll point out any rot we find, as that’s a job for a joiner.
About our window mastic in Rockbourne
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you’re dealing with gaps where the sill meets the wall and gaps left after new windows were fitted, we can put it right, whatever the surface.
Around Rockbourne, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
We stand behind the work with a 12-month guarantee.
- Place
- Rockbourne (SP6)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Resealing frames is a short job: the visit takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. Where a wall is exposed, as many are in small places like Rockbourne, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
What you get with us
- We leave the area clean and tidy
- A 12-month guarantee on all work
- Full insurance on every job
- Domestic, commercial and hotel work
Read our cost guide or customer reviews.
Can I do it myself?
If you are 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 fails, we can still redo it.
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.
What happens on the day
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes a morning for a couple of windows and a door for a typical job. Somewhere like Rockbourne needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
Get a quote
Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Where we work in Rockbourne
- Patio & French doors
- Window sills
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Composite doors
Rockbourne homes and the weather
With historic houses such as Breamore House (about 2.4 miles east) nearby, there’s older building stock in the area around Rockbourne 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 is traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Western Downland Church of England Aided Primary School, its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Church of St Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Rockbourne is in Hampshire. Every kind of property in Rockbourne is covered for window mastic. The work is guaranteed for a year. We cover 683 towns and villages across Hampshire. There’s also a page for Southampton, about 20 miles away.
Here we cover the SP6 postcode area for window mastic. Other places close to Rockbourne include Whitsbury (1 mile north-east), Damerham (2 miles south), Sandleheath (2 miles south), Ashford (3 miles south-east) and Alderholt (4 miles south). Larger places within reach include Totton (15 miles east), Ringwood (9 miles south), Fordingbridge (3 miles south-east), St Leonards (9 miles south), Brockenhurst (15 miles south-east) and Poulner (8 miles south).
Around Rockbourne
Around Rockbourne, our work takes us to homes and buildings near The Cart Wheel Public House. Well-known places in the area include Fordingbridge Museum (3.3 miles south-east) and Godshill Castle Hill (3.5 miles south-east).
More services for Rockbourne
Rockbourne: your questions answered
Is Rockbourne within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do window mastic in Rockbourne?
Yes, Rockbourne is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Do you guarantee window mastic?
Yes, with our one-year guarantee. Keeping drainage clear and checking the joints yearly helps them last.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme.
Can you quote for more than one area?
Yes. Just list everything you need and you’ll get one quote.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Where is Mr Mastic based?
We’re based in Crawley, and we work across South East England, London and Scotland.
How to look after the new joints
So the new joints stay in good condition:
- Wash the frames with mild soapy water
- Avoid blasting the frames with a pressure washer
- Clear any debris from frame drain holes
- Do not use solvent cleaners on the joint
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just ring 0345 464 0079 or drop us an email.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
How we quote for window mastic
You will get a clear quote before we start. It’s based on:
- The number of rooms or windows
- The old material and how stubborn it is
- The type of sealant required
- How easy the joints are to reach
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- Where the property is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or drop us an email.