Oxfordshire · England
Window & door mastic in Farmoor, Oxfordshire
Mastic around window and door frames, sills and patio doors for Farmoor, backed by a one-year guarantee. Call for a quick quote.
- Cracked internal joints between frame and plaster
- Water coming in at the bottom corners of a door
- A bead that doesn’t match the frame
Window mastic in Farmoor, done properly
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We are often asked to deal with damp patches on the reveal after heavy rain and gaps left after new windows were fitted, across window sills, composite doors and timber windows & doors.
Around Farmoor, 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 is covered by a one-year guarantee, wherever you are in Oxfordshire.
- Location
- Farmoor (OX2)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlord and commercial work in Farmoor
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Farmoor 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. Historic houses like Appleton Manor (about 3.5 miles south) are a reminder that the area around Farmoor has older buildings as well as new. In older buildings, 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 Bartholomew School, larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St Mary's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Farmoor is about 5 miles west of Oxford, in Oxfordshire. Every kind of property in Farmoor can book us for window mastic. The work is guaranteed for a year. Farmoor is one of 443 places in Oxfordshire where we work for window mastic.
Our applicators cover all of OX2 for window mastic. You will find streets such as Mayfield Road, Oxford Road and Meadow Close, and we cover them all. Neighbouring places we cover for window mastic include Filchampstead (1 mile south), Swinford (1 mile north-west), Dean Court (2 miles south-east), Eynsham (2 miles north-west) and Wytham (2 miles north-east). We also work in nearby towns such as Oxford (5 miles east), Didcot (11 miles south-east), Bicester (13 miles north-east), Abingdon-on-Thames (6 miles south-east), Witney (6 miles west) and Carterton (10 miles west).
Near you in Farmoor
The nearest railway station is Oxford station, about 3.4 miles east. A little further out are Oxford University Press Museum (3.6 miles east) and Radcliffe Infirmary (3.7 miles east). Not far away are Hook Meadow and The Trap Grounds and Cumnor Hill.
Towns and villages near Farmoor
More services for Farmoor
Questions from Farmoor
Is Farmoor in your area for window mastic?
Yes. Our work covers London and the South East, and Farmoor is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
I let a flat near Oxford station. Can you help?
Yes, we work for landlords and agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Does the work come with a guarantee?
Yes. Our 12-month guarantee covers every job, inside or out.
Can you get sealant to suit coloured frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit. We confirm the timing with your quote.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Keeping the joints in good condition
So the new joints stay in good condition:
- Ventilate rooms so frames do not stay wet inside
- Avoid blasting the frames with a pressure washer
- Don’t paint over the silicone
- Keep timber frames painted
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
How we quote for window mastic
Every job gets its own quote. These are the things that affect it:
- Whether old sealant or filler has to be cut out
- The type of sealant required
- Any mould that needs treating
- The size of the job
Combining jobs into one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- A few pictures by email, if you can
- Any access issues, like height or stairs
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
How it works
There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the work takes anything from an hour or two to a full day, depending on how many frames there are in most cases. Somewhere like Farmoor needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
Ask for a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Related advice
How the job changes by surface
Composite doors
Draughts round the door leaf normally come from worn seals or adjustment, not the mastic. We will tell you if that’s what we find.
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.
Do you need window mastic in Farmoor?
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant cannot stretch, it splits.
The most common problems we see are:
- Cracked sealant at the sill ends
- Untidy mastic left by window fitters
- Cold air getting in at the frame edge
- Hard, cracked sealant around windows
Rented homes near Oxford station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- What product goes in the joint
- How long the guarantee is
- Is VAT in the price?
- How hidden problems are handled
When something else is needed
We won’t take on work that won’t last, so these are the limits:
- Soft or decayed wood in the frame
- Faulty window hardware
- Draughts through the window seals rather than the frame
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.
What we seal
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Composite doors