Oxfordshire · England
Window & door mastic in Fencott, Oxfordshire
Our applicators work in Fencott on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Water coming in at the bottom corners of a door
- Draughts coming in around windows and doors
- A bead that doesn’t match the frame
Window mastic in Fencott, done properly
Homes in Fencott have every kind of window: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We are often asked to deal with rushed sealant from a window installation and damp patches on the reveal after heavy rain, across composite doors, timber windows & doors and patio & French doors.
Somewhere as small as Fencott, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
There’s a 12-month guarantee on every job, large or small.
- Location
- Fencott (OX5)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Why deal with it now?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. Where a wall is exposed, as many are in small places like Fencott, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email and we’ll talk you through it.
Why us?
- A sealant colour to suit the surroundings
- Quality sealants from Arbo and Everbuild
- One-year guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Landlords and letting agents in Fencott can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Aftercare tips
Looking after new joints is easy:
- Don’t paint over the silicone
- Wipe condensation off the frames
- Keep drainage slots and sill grooves clear
- Check the mastic once a year
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
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.
Window mastic in Fencott: local notes
With historic houses such as Boarstall Tower (about 3.2 miles south-east) nearby, there’s older building stock in the area around Fencott 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 let a flat or house near Islip station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Boarstall Tower, about 3.2 miles south-east, is one of the historic houses in the wider area around Fencott, and older homes nearby need a sealant that suits their walls. For site and facilities teams at buildings such as Charlton-on-Otmoor Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Fencott is about 4 miles south of Bicester, in Oxfordshire. Homes, rented property, offices and hotels in Fencott can book us for window mastic. The work is guaranteed for a year. Fencott is one of 443 towns and villages in Oxfordshire where we work. Oxford is on our list too, around 7 miles away.
Work in OX5 is quoted and booked the same way as anywhere else. Neighbouring places we cover for window mastic include Murcott (1 mile south-east), Charlton-on-Otmoor (1 mile west), Merton (1 mile north), Upper Arncott (2 miles east) and Wendlebury (2 miles north-west). Within a short drive, we also cover Oxford (7 miles south-west), Bicester (4 miles north), Abingdon-on-Thames (12 miles south-west), Witney (14 miles west), Thame (11 miles south-east) and Kidlington (5 miles west).
Landmarks near Fencott
Locally, jobs take us to homes and businesses close to The Crown pub and the streets around them. The closest station to Fencott is Islip station, about 3.2 miles west of the centre. Other landmarks nearby include Bicester Avenue (3.2 miles north) and Bicester Community Hospital (3.8 miles north). Green spaces nearby include Otmoor RSPB reserve and Graven Hill.
Your questions about window mastic in Fencott
Can you do window mastic in Fencott?
Yes. Our work covers London and the South East, and Fencott is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Do you cover smaller places like Fencott?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you seal inside as well as outside?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
Do you work for letting agents?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
How long does it take to reseal the windows on a house?
The work takes a few hours for a handful of frames, longer for a whole house. Access and how stubborn the old mastic is affect the time most.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
What the job involves on each surface
Patio & French doors
Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so they get particular care.
Timber windows & doors
Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
What we cannot put right
A few problems are outside what sealant work can do:
- Draughts through the window seals rather than the frame
- A sash or casement that won’t close properly
- A failed sealed unit that has misted up
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
What we seal
- Composite doors
- Timber windows & doors
- Patio & French doors
- Window sills
- Aluminium frames
- uPVC windows
What happens on the day
At the end, we look at the finished work together. The visit itself usually takes a morning for a couple of windows and a door, depending on the amount of work. Somewhere like Fencott needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
How to prepare
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
- Keep children and pets away from the work area
Ask for a quote
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Advice
What affects the quote in Fencott
Call for a quick quote. The main things that affect it are:
- Mould in or behind the old joints
- How many areas need sealing
- The product the joint needs
- How easy the joints are to reach
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- Whether it has been sealed before
- Photos by email, if that’s easy
- Access, such as stairs, a lift or height
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
