Hertfordshire · England
Glazing Silicone in Great Gaddesden
Problem with your glazing joints in Great Gaddesden? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Failed sealant around rooflight glass
- Leaks from the base of a shower screen
- Glass-to-glass joints that have split
About our glazing silicone in Great Gaddesden
Our work covers conservatory joints, 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. Common call-outs are for water running down inside the glass and mouldy sealant around glass panels, on conservatory frames, glass-to-glass joints and glass-to-frame joints.
Around Great Gaddesden, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Big or small, you get the same one-year guarantee.
- Place
- Great Gaddesden (HP1)
- Wider area
- Hertfordshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Different surfaces, different methods
Shower screens
Black or peeling silicone on a screen lets water out. Cutting it out and resealing fixes it.
Glass-to-glass joints
You see these joints clearly, so we take care to leave a neat bead.
What affects the cost of glazing silicone
Call for a quick quote. The main things that affect it are:
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- The type of sealant required
- Any mould that needs treating
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What to tell us for a quote
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- Where the job is, and your postcode
- Pictures of the joints, sent by email
If you’re in Great Gaddesden and need glazing silicone, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Places near Great Gaddesden
Also in Great Gaddesden
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take anything from an hour or two to most of a day, depending on the size of the job. In a small place like Great Gaddesden, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree the joints to be done.
- We cut away the failed silicone.
- The surfaces are cleaned with a suitable solvent.
- New glazing silicone goes in and is finished neatly.
- The joints are checked before we leave.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
How to get a quote
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before work begins.
Related advice
Frames and glazing around Great Gaddesden
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.
Schools such as Great Gaddesden Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Berkhamsted station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows. In the older streets around Church of St John the Baptist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Great Gaddesden is about 3 miles north-west of Hemel Hempstead, in Hertfordshire. Across the HP1 area, we cover glazing silicone for homes and businesses. Across Hertfordshire, we cover 381 places, Great Gaddesden among them. We also work in London, about 27 miles from Great Gaddesden.
All of HP1 is covered for glazing silicone, from the main roads to the quietest streets. That includes homes and businesses on Church Meadow, Piper's Hill and Dagnall Road and the roads around them. Other places close to Great Gaddesden include Nettleden (1 mile south-west), Frithsden (1 mile south-west), Potten End (2 miles south-west), Fields End (2 miles south) and Ashridge (2 miles west). Within a short drive, we also cover Watford (10 miles south-east), Hemel Hempstead (3 miles south-east), St Albans (8 miles east), Welwyn Garden City (14 miles east), Harpenden (7 miles east) and Hitchin (15 miles north-east).
Landmarks near Great Gaddesden
Around Great Gaddesden, our work takes us to homes and buildings near John F Kennedy Catholic School and The Crown and Sceptre pub, among other places. The closest station to Great Gaddesden is Berkhamsted station, about 3 miles south-west of the centre. A little further out are Hemel Hempstead Hospital (3.2 miles south-east). Green spaces nearby include Landpark Wood.
FAQs for Great Gaddesden
Can you do glazing silicone in Great Gaddesden?
Yes, Great Gaddesden is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near Berkhamsted station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can you match the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before any work starts.
Can you just put new silicone over the old?
A top-up rarely holds. Fresh silicone won’t bond to cured silicone so we take it all out and start clean.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Can you replace a misted double-glazed unit?
That’s not something we do. A misted unit has failed inside and needs replacing by a glazier.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or send us an email.
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 fails, we can still redo it.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Landlords, agents and businesses in Great Gaddesden
For anyone letting property in or around Great Gaddesden, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
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.
How to look after the new joints
Aftercare is simple:
- Check the silicone on glass every year or so
- Run a squeegee over the glass when you’re done
- Stick to mild cleaners on glass
- Keep harsh solvents off the silicone
Avoid scraping near the new silicone when you clean. Stick to a soft cloth.
Do not leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the leak gets worse.
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Rotten or badly damaged frames
- A sealed unit that has misted inside
- Leaks from the roof covering or flashing (a roofer’s job)
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
What we seal
- Glass-to-glass joints
- Glass balustrade bases
- Shower screens
- Glass-to-frame joints
- Conservatory frames
- Rooflights
