Buckinghamshire · England
Window Mastic in Shabbington
Professional window mastic in and around Shabbington, with old sealant always removed completely and a one-year guarantee.
- Cracked sealant at the sill ends
- Draughty joints inside around the window
- Old mastic that has gone black or come away
About our window mastic in Shabbington
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty. Where the air is getting in through the window itself, we will say so. Typical jobs include old mastic that has gone black or come away and whistling draughts around closed windows, across aluminium frames, uPVC windows and patio & French doors.
Around Shabbington, 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.
All our work comes with a one-year guarantee.
- Where
- Shabbington (HP18)
- Wider area
- Buckinghamshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Condensation trapped between the panes
- Faulty window hardware
- Soft or decayed wood in the frame
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before you book.
What we seal
- Composite doors
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Window sills
- Aluminium frames
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
How the visit works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for a few frames, or a day or more for a whole house. In a small place like Shabbington, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Keep pets and children clear of the area while we work
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work.
Advice
Also near Shabbington
What else we do in Shabbington
Shabbington questions
Do you work for landlords with property near Haddenham & Thame Parkway station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is Shabbington in your area for window mastic?
Yes, Shabbington is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Do you guarantee window mastic?
Yes, for 12 months. A yearly look at the joints helps them last.
Are you fully insured?
Yes. We’re fully insured.
Is it OK to seal over old sealant?
No, it won’t last. 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.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Shabbington, along with the rest of our area.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Surface by surface
Composite doors
A composite door generally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Shabbington homes and the weather
With historic houses such as Adwell House (about 4.9 miles south) nearby, there’s older building stock in the area around Shabbington as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Ickford School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Parish Church of St Mary Magdalene, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Shabbington is about 3 miles west of Thame, in Buckinghamshire. For window mastic in and around Shabbington, please ring 0345 464 0079 or email us for a quick quote. We cover Buckinghamshire from our Crawley base, Shabbington included. 263 places in Buckinghamshire are on our list, from the larger towns to small villages. We also work in Oxford, around 8 miles away.
Our applicators cover all of HP18 for window mastic and the streets around it. Streets in the area include Limes Way, Old Bryers Close and Ickford Road, all of which we cover. If you’re just outside Shabbington, we cover Little Ickford (1 mile west), Ickford (1 mile west), North Weston (1 mile south-east), Draycott (1 mile south-west) and Albury (1 mile south-west). Larger places within reach include Aylesbury (10 miles north-east), High Wycombe (15 miles south-east), Elmhurst (11 miles north-east), Southcourt (10 miles east), Princes Risborough (9 miles east) and Haydon Hill (9 miles north-east).
Landmarks near Shabbington
Locally, jobs take us to homes and businesses close to The Old Fisherman Inn and Lord Williams's School and the streets around them. The nearest railway station is Haddenham & Thame Parkway station, about 4.1 miles east. Other landmarks nearby include Thame Community Hospital (3 miles east) and Waterperry Gardens Rural Museum (2.3 miles west). Not far away are Snakemoor.
How to look after the new joints
To keep the joints looking good and working properly:
- Clear any debris from frame drain holes
- Repaint timber before it’s bare
- Air rooms to keep condensation down around windows
- Use gentle cleaners on frames and sealant
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
Quotes for window mastic in Shabbington
We quote each job individually. These are the things that affect it:
- Whether there’s mould to deal with
- When we can work, for business premises
- The number and length of the joints
- How easy the joints are to reach
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- The rough size of the job
- What’s wrong with the joints now
- The type of property
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear quote before any work starts.
What we’re called out for in Shabbington
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Most people get in touch after spotting something like this:
- Rushed sealant from a window installation
- Black, perished sealant on frames
- Draughty joints inside around the window
- Leaking joints at the ends of sills
Letting a property close to Haddenham & Thame Parkway station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Before booking anyone
- Is the old sealant removed completely?
- Who turns up on the day
- When the joint can take water or movement
- How the joint is cleaned and prepared