Hampshire · England
Window & door mastic in Hartley Mauditt, Hampshire
Window and door frames in Hartley Mauditt need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Hard, cracked sealant around windows
- Damp patches on the reveal after heavy rain
- Cracked internal joints between frame and plaster
Common problems we fix in Hartley Mauditt
Every frame moves through the day. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Keep an eye out for any of the following:
- Whistling draughts around closed windows
- Cracked internal joints between frame and plaster
- Damp patches on the reveal after heavy rain
- Mastic that has split away from the wall
If you let a flat or house near Alton station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Before booking anyone
- Are they insured?
- What the quote includes, VAT included or not
- How long the guarantee is
- How the joint is cleaned and prepared
Window mastic in Hartley Mauditt
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through. If the draught is through the window seals instead, we’ll tell you. If you’re dealing with hard, cracked sealant around windows and gaps where the sill meets the wall, we can help.
Homes in small places like Hartley Mauditt often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
A one-year guarantee comes as standard.
- Location
- Hartley Mauditt (GU34)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Hartley Mauditt
What else we do in Hartley Mauditt
How it works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take most of a day for a typical house, less for a few frames. Somewhere as small as Hartley Mauditt, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, 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.
How to prepare
- Clear the area around the work
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
Getting a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Related advice
Questions from Hartley Mauditt
Is Hartley Mauditt in your area for window mastic?
Yes, Hartley Mauditt is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Will you come out to Hartley Mauditt?
Yes. Hartley Mauditt is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
What information do you need?
A short description and the location. We’ll ask anything else we need to know.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Surface by surface
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as a joiner will need to deal with it.
When it isn’t the sealant
We will not take on work that won’t last, so here’s what sealant can’t put right:
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
- Draughts through the window seals rather than the frame
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
What we seal
- Patio & French doors
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
Frames and glazing around Hartley Mauditt
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.
If you live in an older home near St Leonard's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Hartley Mauditt is about 3 miles south-east of Alton, in Hampshire. Hartley Mauditt gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Hampshire, we cover 683 places, Hartley Mauditt among them. For nearby work, see our Portsmouth page (22 miles or so).
We cover every part of the GU34 postcode area for window mastic. If you are just outside Hartley Mauditt, we cover East Worldham (1 mile north), Oakhanger (2 miles east), Upper Farringdon (2 miles west), Farringdon (2 miles west) and Chawton (2 miles north-west). Larger places within reach include Basingstoke (12 miles north-west), Farnborough (14 miles north-east), Fleet (12 miles north-east), Horndean (15 miles south), Aldershot (12 miles north-east) and Alton (3 miles north-west).
Around Hartley Mauditt
The nearest railway station is Alton station, about 2.5 miles north-west. A little further out are Alton Community Hospital (2.5 miles north-west) and The Romany Museum (1.6 miles south). Green spaces nearby include Selborne Hill and Deadwater Valley.
Landlords, agents and businesses in Hartley Mauditt
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
For anyone letting property in or around Hartley Mauditt, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Looking after it afterwards
So the new joints stay in good condition:
- Walk round the house once a year and look at the joints
- Clean frames with a soft cloth and soapy water
- Keep paint and stain on wooden frames in good order
- Don’t aim a pressure washer at the joints
Try not to touch the new joint while it cures, following the cure time we give you. Don’t point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.