Buckinghamshire · England
Window & door mastic in Hunt's Green, Buckinghamshire
Window mastic for Hunt's Green, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps where the sill meets the wall
- Cold air getting in at the frame edge
- Mastic that has split away from the wall
About our window mastic in Hunt's Green
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’re often asked to deal with rushed sealant from a window installation and leaking joints at the ends of sills, on uPVC windows, composite doors and patio & French doors.
Around Hunt's Green, 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.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Place
- Hunt's Green (HP16)
- Region
- Buckinghamshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why it’s worth doing now in Hunt's Green
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Older cottages and farmhouses around Hunt's Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Why choose Mr Mastic in Hunt's Green
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
- Sanitary silicone with an anti-fungal additive in wet areas
- Fully insured
See how sealant jobs are priced and our reviews.
How to look after the new joints
Aftercare is simple:
- Don’t aim a pressure washer at the joints
- Clear any debris from frame drain holes
- Repaint timber before it’s bare
- Don’t paint over the silicone
Silicone can’t usually be painted, so mention any painting plans before we start. We can use a paintable sealant where that matters.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
How it works
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. It normally takes most of a day for a typical house, less for a few frames. Somewhere like Hunt's Green needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
How to get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will take it from there.
Related advice
Common questions in Hunt's Green
Do you cover smaller places like Hunt's Green?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
I let a flat near Great Missenden station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you have sealant for grey or black windows?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
How many windows can you do in a day?
The work takes most of a day for a typical house, less for a few frames. Access and the amount of old mastic make the biggest difference.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
How long before the joint can be used?
It depends on the product and the conditions. Before we leave, we’ll tell you the cure time.
Does the work come with a guarantee?
Yes. Each job is covered for 12 months.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Different surfaces, different methods
Composite doors
A composite door usually sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We’ll tell you which suits your home.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Damp problems in the wall away from the window
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
What we seal
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Window sills
- Composite doors
- Patio & French doors
Common problems we fix in Hunt's Green
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
It’s worth asking for a quote if you see:
- Mastic that has split away from the wall
- Gaps left after new windows were fitted
- Damp patches on the reveal after heavy rain
- Gaps where the sill meets the wall
If you look after a building such as Lee Common Church of England School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Who turns up on the day
- Whether they seal over old material or remove it
- How the surfaces are prepared before sealing
- What happens if the job turns out different
Nearby places to Hunt's Green
Other services in Hunt's Green
Window mastic in Hunt's Green: local notes
Historic houses like Cholesbury Manor House (about 2.9 miles north-east) are a reminder that the area around Hunt's Green has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Great Missenden station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near Old Church of St John the Baptist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hunt's Green is about 4 miles west of Chesham, in Buckinghamshire. Jobs in Hunt's Green get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Hunt's Green is one of 263 places in Buckinghamshire where we work. For nearby work, see our Reading page.
Our applicators cover all of HP16 for window mastic. Other places close to Hunt's Green include Lee Gate (1 mile north), Kingsash (1 mile north-west), Wendover Dean (1 mile north-west), Great Missenden (2 miles south) and Great Hampden (3 miles south-west). Further out, we also cover Aylesbury (8 miles north-west), High Wycombe (7 miles south), Chesham (4 miles east), Marlow (11 miles south), Amersham (5 miles south-east) and Beaconsfield (8 miles south).
Near you in Hunt's Green
Around Hunt's Green, our work takes us to homes and buildings near Misbourne School and Cock and Rabbit pub, among other places. Hunt's Green’s nearest station is Great Missenden station, roughly 1.5 miles south. A little further out are Roald Dahl Museum and Story Centre (1.6 miles south) and Chiltern Hospital (2.4 miles south). Open spaces near Hunt's Green include Sands Bank and Haddington Hill.