Buckinghamshire · England
Glazing Silicone in High Wycombe
Glazing silicone for High Wycombe and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Rooflight joints letting water in
- Leaks where conservatory glass meets the frame
- Sealant that was laid over old silicone and failed
About our glazing silicone in High Wycombe
Sealant on glazing does not last for ever. Weather and movement take their toll and cracked joints let water in. Resealing puts that right. If you’re dealing with new silicone smeared over old sealant and cracked silicone between glass panels, we can put it right, on glass-to-glass joints, glass balustrade bases and glass-to-frame joints alike.
Walls in High Wycombe that face the prevailing wind take the most weather, so the mastic there tends to fail first. Checking every frame, not just the obvious one, is time well spent.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- High Wycombe (HP13, HP11, HP12, HP10)
- Region
- Buckinghamshire
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When it is not the sealant
We’ll always be straight with you, so here’s what sealant cannot fix:
- A sagging or failing conservatory roof
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
- Glass that needs replacing
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Glass-to-frame joints
- Rooflights
- Conservatory frames
- Shower screens
- Glass-to-glass joints
- Glass balustrade bases
Different surfaces, different methods
Rooflights
Water around a rooflight isn’t always the sealant. We check which it is.
Shower screens
Black or peeling silicone on a screen lets water out. Cutting it out and resealing fixes it.
Also near High Wycombe
Other services in High Wycombe
High Wycombe homes and the weather
With historic houses such as Hughenden Manor (about 1.5 miles north) nearby, there’s older building stock in the area around High Wycombe 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near High Wycombe station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty. For site and facilities teams at buildings such as Hamilton Academy, the mastic around its windows and doors needs looking after like any other building’s.
High Wycombe is about 28 miles south of Milton Keynes, in Buckinghamshire. High Wycombe gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Buckinghamshire, we cover 263 places, High Wycombe among them. We also work in Reading, around 16 miles away.
We cover every part of the HP13, HP11, HP12 and HP10 postcode area for glazing silicone. Streets in the area include High Street, Church Square and Queens Square, and we cover them all. With the A40 and A404 close by, High Wycombe is simple for us to get to. We also cover the places around High Wycombe: Totteridge (1 mile east), Terriers (1 mile north-east), Wycombe Marsh (1 mile south-east), Micklefield (1 mile east) and Downley (2 miles north-west). Within a short drive, we also cover Aylesbury (13 miles north), Chesham (8 miles north-east), Marlow (4 miles south), Amersham (7 miles north-east), Beaconsfield (5 miles east) and Chalfont St Peter (8 miles east). Being one of Buckinghamshire’s larger places, High Wycombe has every kind of property, from flats to offices.
Local landmarks in High Wycombe
We work in homes and buildings around London Central Elementary High School, Three Tuns Public House and The Tower, among other places. High Wycombe has its own railway station: High Wycombe station. Well-known places in the area include Eden (within half a mile west) and High Wycombe Castle (within half a mile north). For a walk, there’s Gomm's Wood.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
The process
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes anything from an hour or two to most of a day, depending on the size of the job. In High Wycombe, parking is rarely complicated, though it helps to know about driveways or restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- First, we trace the leak and check it’s coming through a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- New glazing silicone goes in and is tooled to a neat finish.
- The finished joints are checked and, where it’s safe, tested with water.
Preparing 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
- Clear items away from the joints we’re working on
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, call 0345 464 0079 or email us.
Advice
Questions from High Wycombe
Can you do glazing silicone in High Wycombe?
Yes, High Wycombe is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
Do you work for landlords with property near High Wycombe station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Do you replace glass?
No. Misting between panes means the sealed unit has failed and needs replacing by a glazier.
What does glazing silicone cost?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Is balustrade sealant something you do?
Yes, where the base is finished with sealant. Send us photos and we’ll take a look when you call 0345 464 0079 or send us an email.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Why act early in High Wycombe
Replacing a conservatory roof is major work. Where the water is getting in through sealant, resealing is far simpler. If the roof is the problem, we will say so. Gaps in sealant and mould in the bead never get better on their own, and in a busy home in High Wycombe they get worse with every use. Now is the easy time to put it right.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- Anti-fungal silicone where joints get wet
- A choice of colours where the product allows
- Approved under the ARBOMaster scheme
- Full insurance on every job
Read our cost guide and customer reviews.
Common problems we fix in High Wycombe
Shower screen silicone gets wet every day. Mould grows into the bead and the joint starts to lift.
Keep an eye out for these signs:
- Sealant that was laid over old silicone and failed
- Leaks where conservatory glass meets the frame
- Mouldy sealant around glass panels
- Water escaping where a screen meets the wall
For an older house near a landmark such as Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before you book anyone
- Whether they seal over old material or remove it
- How hidden problems are handled
- Whether the sealant suits the joint
- The length of the guarantee
Landlord and commercial work in High Wycombe
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.