Buckinghamshire · England
Window & door mastic in Edgcott, Buckinghamshire
Specialist window mastic for Edgcott: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Black, perished sealant on frames
- Untidy mastic left by window fitters
- Whistling draughts around closed windows
How we handle window mastic in Edgcott
Over two decades of sealing frames has taught us which products suit which walls. We are ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you have white mastic on grey or black frames and rushed sealant from a window installation, we can put it right.
Around Edgcott, 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.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.

- Where
- Edgcott (HP18)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Edgcott
Failed mastic isn’t a reason to replace sound windows. Where the frames are sound, new mastic generally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. Where a wall is exposed, as many are in small places like Edgcott, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
What you get with us
- Experience in homes, commercial sites and hotels
- You choose the colour before work begins
- Over 20 years’ experience
- Tidy, careful work
What else we do in Edgcott
When to call us in Edgcott
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
Signs it’s time to call us include:
- Draughts coming in around windows and doors
- Draughty joints inside around the window
- Damp patches on the reveal after heavy rain
- Sealant in the wrong colour for the frame
If you look after a building such as Grendon Underwood Combined School, larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- How long the guarantee is
- How the colour is chosen
- Is the old sealant removed completely?
- How much experience the applicator has
Common questions in Edgcott
Is window mastic in Edgcott guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover Edgcott for window mastic?
Yes. Our work covers London and the South East, and Edgcott is part of that. Just call 0345 464 0079 or email us with a few details of the job.
How many windows can you do in a day?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
What does window mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
How the job changes by surface
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We’ll point out any rot we find, as that is a job for a joiner.
What happens on the day
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. In a small place like Edgcott, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
Ask for a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
How to look after the new joints
A little care helps the new joints last. Our advice:
- Keep drainage slots and sill grooves clear
- Air rooms to keep condensation down around windows
- Avoid blasting the frames with a pressure washer
- Wash the frames with mild soapy water
Keep the new mastic undisturbed while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Frames and glazing around Edgcott
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Claydon House (about 3 miles north-east) nearby, there’s older building stock in the area around Edgcott 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.
If you live in an older home near Church of St Michael, the joint between an old wall and a newer frame is generally the first place rain gets in.
Edgcott is about 6 miles east of Bicester, in Buckinghamshire. From the centre of Edgcott to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Across Buckinghamshire, we cover 263 places, and Edgcott is one of them. There’s also a page for Oxford, about 14 miles away.
We cover every part of HP18 for window mastic and the streets around it. You’ll find streets such as Buckingham Road, St Michaels Close and Lawn House Lane, all of which we cover. If you are just outside Edgcott, we cover Grendon Underwood (1 mile south), Ludgershall (3 miles south), Blackthorn (4 miles south-west), Piddington (4 miles south-west) and Brill (6 miles south). We also work in nearby towns such as Aylesbury (10 miles south-east), Buckingham (7 miles north), Elmhurst (10 miles south-east), Southcourt (11 miles south-east), Princes Risborough (14 miles south-east) and Haydon Hill (9 miles south-east).
Landmarks near Edgcott
For a walk, there’s Calvert Jubilee.
Quotes for window mastic in Edgcott
Every job gets its own quote. These are the things that affect it:
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- Whether the work is at height
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What we need to know
Before you ask for a quote, have a think about:
- Any previous sealing or DIY work
- Photos by email, if that’s easy
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
For window mastic in Edgcott, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Honest limits
We will always be straight with you, so here’s what sealant cannot fix:
- Condensation trapped between the panes
- Broken hinges, locks or handles
- Soft or decayed wood in the frame
If in doubt, phone 0345 464 0079 or email us and we will say what we think before booking.
Surfaces we seal
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- Composite doors
- Window sills
- uPVC windows
