Hampshire · England
Glazing Silicone in Knapp
Glazing silicone in Knapp from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Silicone pulling away from the glass
- Drips on the inside of a conservatory window
- New silicone smeared over old sealant
Windows and doors in Knapp
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Chandlers Ford station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows. Schools such as Ampfield Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Knapp is about 2 miles north-west of Chandler's Ford, in Hampshire. Homes, rented property, offices and hotels in Knapp is covered for glazing silicone, old or new, large or small. The work is guaranteed for a year. Across Hampshire, we cover 683 places, and Knapp is one of them. You can also see our page for Southampton, roughly 7 miles from Knapp.
Every address in SO51 is within our area for glazing silicone. Other places close to Knapp include Ampfield (1 mile south-west), Broadgate (1 mile south-east), Gosport (1 mile south-west), Lower Slackstead (1 mile north-west) and Crampmoor (2 miles south-west). Further out, we also cover Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east), Andover (14 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
What’s near Knapp
We work in homes and buildings around White Horse Public House, among other places. The closest station to Knapp is Chandlers Ford station, about 2.5 miles south-east of the centre. A little further out are Romsey Community Hospital (2.9 miles south-west) and King Johns House (3.7 miles south-west). For a walk, there’s Emer Bog and Baddesley Common.
Glazing silicone in Knapp
Glass replacement isn’t something we do and a misted double-glazed unit needs a glazier. Our work is the sealant joints, which is where many leaks start. Typical jobs include glass-to-glass joints that have split and new silicone smeared over old sealant, on glass-to-glass joints, conservatory frames and rooflights.
Somewhere as small as Knapp, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Knapp (SO51)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Do you need glazing silicone in Knapp?
Heat and cold make glass and frames move, and they don’t move by the same amount. Over years, that movement tears the silicone.
These are the problems we’re asked about most:
- Water getting into a conservatory at the joints
- Rooflight joints letting water in
- Mouldy sealant around glass panels
- Sealant that was laid over old silicone and failed
In the older streets around Church of St Mark, the joint between an old wall and a newer frame is generally the first place rain gets in.
Comparing quotes
- How the joint is cleaned and prepared
- Is VAT in the price?
- Whether they seal over old material or remove it
- How the colour is chosen
How to look after the new joints
A little care helps the new joints last. Our advice:
- Avoid scraping close to the bead
- Ventilate the conservatory to cut condensation
- Don’t leave a drip for the next storm
- Keep conservatory gutters clear of leaves
Use mild cleaners on and around the silicone. Harsh solvents may damage the bead.
Cracked glazing silicone means the joint has failed. Renewing it early keeps it simple compared with fixing water damage later.
Landlord and commercial work in Knapp
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Knapp: your questions answered
Can you do glazing silicone in Knapp?
Yes. We work across London and the South East, and Knapp is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Knapp?
Yes. Knapp is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can you reseal the base of a glass balustrade?
We can. We cut out the failed sealant and reseal the base joint using a sealant that suits the materials.
Is it possible to redo the silicone on a shower screen?
Yes, we do these often. We use anti-fungal silicone made for wet areas.
Why not top up the existing silicone?
It doesn’t last. Fresh silicone won’t bond to cured silicone, so we remove the old sealant and clean the joint.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
More services for Knapp
What the job involves on each surface
Conservatory frames
The joints where the conservatory meets the house take a lot of movement. They’re resealed with a suitable sealant.
Glass-to-frame joints
Old sealant is removed carefully from the glass before new glazing silicone goes in.
What affects the quote in Knapp
We do not publish a price list. What we look at:
- The number and length of the joints
- Whether the work is at height
- How many areas need sealing
- The old material and how stubborn it is
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and give you a clear price before any work starts.
What we need to know
Photos help, but a description is a good start. Please mention:
- The rough size of the job
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
Want a quote for glazing silicone? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
How the visit works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours for most jobs. In a small place like Knapp, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we trace the leak and check it’s coming through a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- The glass and frame are cleaned and degreased.
- 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
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
- Let us know about earlier repairs to the joints
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
