Buckinghamshire · England

Glazing Silicone in Upper North Dean

Professional glazing silicone in and around Upper North Dean, with every bit of old sealant taken out first.

  • Water getting into a conservatory at the joints
  • Cracked silicone between glass panels
  • Water tracking down the inner face of the glass

Glazing silicone near Upper North Dean

Glazing silicone in Upper North Dean, done properly

We renew glazing silicone on conservatories, rooflights and glass panels, as well as frameless shower screens and glass balustrade bases. The old sealant comes out, the joint is cleaned and new silicone goes in. We work on shower screens, rooflights and conservatory frames, and people most often call us about water escaping where a screen meets the wall and black or yellowed silicone on glass joints.

Somewhere as small as Upper North Dean, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.

A one-year guarantee comes as standard, so you are covered after we’ve gone.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Upper North Dean (HP14)
Region
Buckinghamshire
Cover
12 months on all our work
Quotes
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

Windows and doors in Upper North Dean

Historic houses like Hughenden Manor (about 2.4 miles south) are a reminder that the area around Upper North Dean 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. 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.

In the older streets around Speen Church (Baptist), the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Saunderton station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. For site and facilities teams at buildings such as Speen CofE VA School, the mastic around its windows and doors needs looking after like any other building’s.

Upper North Dean is about 4 miles north of High Wycombe, in Buckinghamshire. Whether you are in the middle of Upper North Dean or further out, glazing silicone is available for homes and businesses alike, from flats and houses to offices and hotels. Upper North Dean is one of 263 places in Buckinghamshire where we work. We also work in Reading, around 18 miles away.

Every address in HP14 is within our area for glazing silicone, from the main roads to the quietest streets. If you’re just outside Upper North Dean, we cover Lower North Dean (1 mile south-east), Bryant's Bottom (1 mile north-east), Speen (1 mile north-west), Walter's Ash (1 mile south-west) and Stony Green (1 mile north-east). Further out, we also cover Aylesbury (9 miles north), High Wycombe (4 miles south), Chesham (7 miles east), Marlow (8 miles south), Amersham (7 miles east) and Beaconsfield (7 miles south-east).

Landmarks near Upper North Dean

Around Upper North Dean, our work takes us to homes and buildings near Pipers Corner School and King William IV Public House and the streets around them. Upper North Dean’s nearest station is Saunderton station, about 2.3 miles west. Well-known places in the area include Roald Dahl Museum and Story Centre (3.2 miles north-east) and Chiltern Hospital (3.4 miles east). The countryside around Upper North Dean includes Beacon Hill and Prestwood Local Nature Reserve.

Map of Upper North Dean © OpenStreetMap contributors

For landlords and businesses

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

Upper North Dean questions

Can you help a landlord with a rental near Saunderton station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.

Can you do glazing silicone in Upper North Dean?

Yes, Upper North Dean is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.

Why not top up the existing silicone?

New silicone will not bond to old silicone, so a top-up soon lets water through. We cut out the old sealant first.

Is there any odour?

There can be a smell while the sealant cures. Opening a window helps.

Will it make a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

Do you remove the old sealant?

Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.

Can I do it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area.

DIY versus a professional finish

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

What we can’t put right

New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:

  • Misting between the panes of a double-glazed unit (a failed unit for a glazier)
  • A roof that has moved or dropped
  • A broken pane or roof panel

If in doubt, call 0345 464 0079 or email us and we will say what we think.

Joints and surfaces we work on

  • Glass-to-glass joints
  • Glass-to-frame joints
  • Glass balustrade bases
  • Conservatory frames
  • Rooflights
  • Shower screens

Aftercare tips

To keep the joints looking good and working properly:

  • Inspect the sealant on glazing annually
  • Clean glass with a mild cleaner and a soft cloth
  • Act on drips or damp patches early
  • Do not use a blade near the sealant

Keep conservatory gutters clear so water does not back up against the seals. Overflowing gutters can cause leaks of their own.

A small conservatory leak soon spreads. Water runs along frames and down walls so it’s best dealt with right away.

The process

On the day, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before we start. Most jobs take a few hours, depending on how many joints need doing. In a small place like Upper North Dean, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First we agree the joints to be done.
  2. Old sealant is removed from the glass and frame.
  3. The surfaces are cleaned with a suitable solvent.
  4. We apply and tool the new silicone.
  5. We inspect the work and test it where we can.

Getting ready for the visit

  • Plan for the work area to be out of bounds to pets and children
  • Mention any tricky access
  • Mention any sign-in or site rules at work premises

Getting a quote

To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear quote before any work starts.

Ask for a quote

Advice

How the job changes by surface

Glass balustrade bases

The base of a glass balustrade is usually sealed. Failed sealant there lets water collect.

Glass-to-frame joints

The sealant must stick to glass and frame alike. We choose a product that suits both.

What affects the cost of glazing silicone

The price is agreed before any work begins. It’s based on:

  • How much there is to do
  • Access and height
  • Any mould that needs treating
  • The type of sealant required

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.

Helping us quote

When you contact us, it’s useful to know:

  • If someone has resealed it before
  • If it’s domestic, commercial or a hotel
  • Photos by email, if that’s easy
  • What the problem is, such as mould, gaps, leaks or cracking

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job