Oxfordshire · England
Window Mastic in Caulcott
Mastic around window and door frames, sills and patio doors for Caulcott, backed by a one-year guarantee. Ask us for a quote.
- Draughts coming in around windows and doors
- Mastic that has split away from the wall
- Water coming in at the bottom corners of a door
Caulcott questions
Can you do window mastic in Caulcott?
Yes, Caulcott is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Will you come out to Caulcott?
Yes, Caulcott is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Can I paint over the new sealant?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
What does window mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
About our window mastic in Caulcott
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We work on uPVC windows, aluminium frames and composite doors, and common reasons people get in touch are untidy mastic left by window fitters and mastic that’s falling out in pieces.
Outdoor sealant needs dry, clean surfaces, so work on frames around Caulcott is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.
- Place
- Caulcott (OX25)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work begins. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Caulcott, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
Ask for a quote
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Related advice
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp coming through the wall itself rather than the frame joint
- A door that needs adjusting, rehanging or new seals
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Composite doors
- uPVC windows
- Window sills
- Timber windows & doors
- Aluminium frames
- Patio & French doors
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Keep drainage slots and sill grooves clear
- Air rooms to keep condensation down around windows
- Don’t paint over the silicone
- Repaint timber before it’s bare
Silicone cannot generally be painted, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Also near Caulcott
Other services in Caulcott
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Do you need window mastic in Caulcott?
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
People generally contact us when they notice one of these:
- A bead that doesn’t match the frame
- Hard, cracked sealant around windows
- Cracked sealant at the sill ends
- Gaps between the frame and the inside reveal
For landlords with property near Heyford station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Before booking anyone
- Which sealant they’ll use, and why
- Whether you can choose the colour
- What happens if the job turns out different
- What insurance they hold
What happens if it’s left?
Resealing frames is a short job: it takes a morning for a couple of windows and a door. Wait for damp to appear and there may be plaster and decorating to sort out too. In a small place like Caulcott, 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 is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why book with us
- Colour picked to suit the job
- 12-month guarantee on every job
- We are fully insured
- A choice of colours where the product allows
Take a look at how sealant jobs are priced or what customers say.
Windows and doors in Caulcott
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.
Homes close to Heyford Park Chapel include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Caulcott is about 5 miles west of Bicester, in Oxfordshire. Jobs in Caulcott get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Caulcott is one of 443 places in Oxfordshire where we work for window mastic. Our Oxford page covers work nearby.
We cover every part of the OX25 postcode area for window mastic and the streets around it. Streets in the area include South Street, Lower Heyford Road and Greenway, and we cover them all. Nearby, we also carry out window mastic in Upper Heyford (1 mile north), Lower Heyford (1 mile west), Middleton Stoney (2 miles east), Ardley (3 miles north-east) and Somerton (3 miles north). We also work in nearby towns such as Oxford (11 miles south), Banbury (11 miles north), Bicester (5 miles east), Witney (13 miles south-west), Kidlington (7 miles south) and Headington Quarry (11 miles south).
Around Caulcott
For rail, the closest station is Heyford station, roughly 1.6 miles west. Nearby you will also find Bicester Community Hospital (4.6 miles east) and Ardley Castle (2.7 miles north-east).
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.