Buckinghamshire · England
Window & door mastic in Walton, Buckinghamshire
Problem with your window and door frames in Walton? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
The process
There isn’t much for you to do on the day. Show us the job and we will take it from there. The work itself takes most of a day for a typical house, less for a few frames. For a village or hamlet like Walton, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Advice
How we handle window mastic in Walton
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty. Where the air is getting in through the window itself, we’ll say so. We work on patio & French doors, window sills and composite doors, and common reasons people get in touch are hard, cracked sealant around windows and untidy mastic left by window fitters.
Mastic can only go onto a dry, clean joint, so window work in Walton is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Walton (HP21, HP20)
- Region
- Buckinghamshire
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Places near Walton
Also in Walton
How to look after the new joints
Looking after new joints is easy:
- Keep jet washers away from the mastic
- Make sure the drainage slots are not blocked
- Look round the frames every year or so
- Do not paint over the silicone
Keep the new mastic undisturbed while it cures, following the cure time we give you. Keep jet washers away from the frames.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. Resealing closes it.
When something else is needed
A few problems are outside what sealant work can do:
- Damp coming through the wall itself rather than the frame joint
- Faulty window hardware
- A frame that has rotted at the joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Patio & French doors
- Window sills
- Timber windows & doors
- Composite doors
- uPVC windows
- Aluminium frames
What happens if it’s left?
The work is quick compared with the damage it prevents: it 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. In a small place like Walton, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What you get with us
- 180+ five-star Google reviews
- Colour agreed with you before any work starts
- Approved under the ARBOMaster scheme
- Sealant colour chosen to suit
Take a look at what affects the cost and customer reviews.
What the job involves on each surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it without cracking.
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.
FAQs for Walton
Can you do window mastic in Walton?
Yes, Walton is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Do you work for landlords with property near Aylesbury 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.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Will new mastic stop draughts?
In many cases. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Walton homes and the weather
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Aylesbury station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as Holy Trinity, the joint between an old wall and a newer frame is normally the first place rain gets in. Managing a site like Aylesbury High School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Walton is about 1 mile west of Turnfurlong, in Buckinghamshire. We provide window mastic to homes and businesses in Walton and nearby, as part of our work across Buckinghamshire. Across Buckinghamshire, we cover 263 places, and Walton is one of them. For nearby work, see our Oxford page (19 miles or so).
Jobs for window mastic in HP21 and HP20 is quoted and booked the same way as anywhere else. Whether your property is on Croft Road, Stoke Road and Walton Road or anywhere close by, our applicators can take on the job. If you’re just outside Walton, we cover Queens Park (1 mile north-east), California (1 mile west), Aylesbury (1 mile north-west), Southcourt (1 mile south-west) and Elmhurst (1 mile north). Further out, we also cover High Wycombe (13 miles south), Chesham (11 miles south-east), Buckingham (15 miles north-west), Amersham (13 miles south-east), Beaconsfield (15 miles south-east) and Princes Risborough (6 miles south).
Local landmarks in Walton
In Walton, that means homes and buildings near The Aristocrat pub, Stocklake Park Community School and Oak Green School and the streets around them. There’s a railway station in Walton itself: Aylesbury station. A little further out are Royal Buckinghamshire Hospital (0.8 miles north-west) and Roald Dahl Children's Gallery (0.6 miles north-west). Open spaces near Walton include Coombe Hill.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
