Buckinghamshire · England
Window & door mastic in Bledlow, Buckinghamshire
Specialist window mastic for Bledlow: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Gaps left after new windows were fitted
- Cold air getting in at the frame edge
- Mastic that’s falling out in pieces
Frames and glazing around Bledlow
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Princes Risborough School, its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Church of the Holy Trinity, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Bledlow is about 5 miles south-east of Thame, in Buckinghamshire. Every kind of property in Bledlow can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Our Buckinghamshire coverage runs to 263 places, and Bledlow is one of them. We also work in Oxford, around 16 miles away.
All of HP27 is within our area for window mastic. That includes homes and businesses on Church End, Perry Lane and Perryfield Court and the roads around them. We also cover the places around Bledlow: Pitch Green (1 mile north), Skittle Green (1 mile north-west), Holly Green (1 mile north-west), Horsenden (1 mile north-east) and Henton (1 mile west). We also work in nearby towns such as Aylesbury (8 miles north), High Wycombe (8 miles south-east), Chesham (11 miles east), Marlow (11 miles south-east), Amersham (12 miles east) and Beaconsfield (12 miles south-east).
What’s near Bledlow
Locally, jobs take us to homes and businesses close to The Lions Of Bledlow pub, among other places. The closest station to Bledlow is Princes Risborough station, about 1.3 miles east. Other landmarks nearby include Thame Community Hospital (4.6 miles north-west) and Great Kimble Dial Hill (3.6 miles north-east). Open spaces near Bledlow include Oakley Hill nature reserve and Beacon Hill.
How we handle window mastic in Bledlow
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. We are often asked to deal with rushed sealant from a window installation and hard, cracked sealant around windows, across composite doors, window sills and patio & French doors.
Mastic can only go onto a dry, clean joint, so window work in Bledlow is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Bledlow (HP27)
- Region
- Buckinghamshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

How it works
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes most of a day for a typical house, less for a few frames for a typical job. For a village or hamlet like Bledlow, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Clear the area around the work
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Read more
When something else is needed
Before you book, it’s worth knowing the limits:
- Rotten timber, which needs a joiner first
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Where we work in Bledlow
- uPVC windows
- Composite doors
- Window sills
- Patio & French doors
- Aluminium frames
- Timber windows & doors
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Common questions in Bledlow
Is Bledlow within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Bledlow in your area for window mastic?
Yes. Our work covers London and the South East, and Bledlow is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Bledlow and the rest of Buckinghamshire.
Do you guarantee window mastic?
Yes. Our one-year guarantee covers every job, inside or out.
Are you insured?
Yes, we are fully insured.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before work begins.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
Surface by surface
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain can’t run into the wall.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
Towns and villages near Bledlow
Also in Bledlow
What affects the cost of window mastic
Every job gets its own quote. This is what makes a difference:
- The size of the job
- The product the joint needs
- Whether old sealant or filler has to be cut out
- 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 play a part, and we will explain the quote if you ask.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- The type of property
- If someone has resealed it before
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
If you are in Bledlow and need window mastic, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
When to call us in Bledlow
Sills take more water than any other part of a window, 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.
The problems people usually mention when they call are:
- A bead that does not match the frame
- Untidy mastic left by window fitters
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
If you let a flat or house near Princes Risborough station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before booking anyone
- How much experience the applicator has
- What preparation is included
- Whether they’re fully insured
- How hidden problems are handled
