Oxfordshire · England
Window Mastic in Christmas Common
We cover Christmas Common for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- White mastic on grey or black frames
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
Frames and glazing around Christmas Common
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Stonor Park (about 2.9 miles south-east) nearby, there’s older building stock in the area around Christmas Common as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Icknield Community College, the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Church of the Nativity, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Christmas Common is about 8 miles south of Thame, in Oxfordshire. Every kind of property in Christmas Common can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Christmas Common is one of 443 towns and villages in Oxfordshire we cover for window mastic. There’s also a page for Reading, about 13 miles away.
Jobs for window mastic in OX49 is quoted and booked the same way as anywhere else. Other places close to Christmas Common include Northend (1 mile east), Howe Hill (1 mile south-west), Shirburn (2 miles north-west), Cookley Green (2 miles south-west) and Ibstone (2 miles east). Further out, we also cover Oxford (14 miles north-west), Didcot (12 miles west), Abingdon-on-Thames (14 miles west), Thame (8 miles north), Henley-on-Thames (7 miles south) and Benson (6 miles west).
Landmarks near Christmas Common
Typical jobs here are in homes near Fox And Hounds Inn Public House and the streets around them. For a walk, there’s Bald Hill and Aston Rowant NNR.
How we handle window mastic in Christmas Common
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty. If the draught is through the window seals instead, we’ll tell you. Typical jobs include gaps between the frame and the inside reveal and untidy mastic left by window fitters, across uPVC windows, composite doors and patio & French doors.
Homes in small places like Christmas Common 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.
Your job is guaranteed for a year, as with all our work.
- Location
- Christmas Common (OX49)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Christmas Common
What else we do in Christmas Common
What we can’t put right
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- Worn gaskets, brush seals or a door that has dropped
- Penetrating damp from a failed cavity tray or render
- Broken hinges, locks or handles
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Timber windows & doors
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Patio & French doors
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Surface by surface
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 look for the cause first.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
Christmas Common questions
Will you come out to Christmas Common?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is there a guarantee on window mastic in Christmas Common?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
How many windows can you do in a day?
A handful of frames is a short visit, while a whole house takes longer. You will get a timescale with the quote.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Christmas Common.
Why it’s worth doing now in Christmas Common
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Where a wall is exposed, as many are in small places like Christmas Common, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Christmas Common
- Full insurance on every job
- Any old sealant cut out fully, not covered over
- A sealant colour to suit the surroundings
- We agree the colour with you first
Take a look at our cost guide or our reviews.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Christmas Common, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
What we do, step by step
You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the work takes a few hours for a handful of frames, longer for a whole house for a typical job. In a small place like Christmas Common, access is normally 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.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Keep pets and children clear of the area while we work
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or drop us an email.
Advice
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Ventilate rooms so frames do not stay wet inside
- Make sure the drainage slots aren’t blocked
- Keep paint off silicone joints
- Repaint timber before it’s bare
Silicone cannot usually be painted, so mention any painting plans before any work starts. There are paintable sealants for joints that need it.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.