Hampshire · England
Glazing & conservatory sealant in Longstock, Hampshire
Glazing silicone for Longstock, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Leaking glazing joints on a rooflight
- Water running down inside the glass
- A quick top-up bead that didn’t last
Different surfaces, different methods
Rooflights
Rooflights get the full force of the weather. The sealant around the glass and frame wears faster than most.
Glass balustrade bases
Glass balustrades sit in a channel that is often finished with sealant. When it fails, water can sit in the channel.
How we handle glazing silicone in Longstock
Glazing silicone that has yellowed, blackened or come away spoils the look and lets water in. It comes off cleanly, without marking the glass before the new bead goes in. We work on shower screens, glass balustrade bases and glass-to-glass joints, and people most often call us about failed sealant around rooflight glass and glazing silicone that has cracked or come away.
Somewhere as small as Longstock, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Longstock (SO20)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Windows and doors in Longstock
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Test Valley School? Then the mastic around its windows and doors needs looking after like any other building’s.
Longstock is about 5 miles south of Andover, in Hampshire. Whether you are in the middle of Longstock or further out, glazing silicone is available for homes and businesses alike. Our area takes in 683 places across Hampshire. You can also see our page for Southampton, about 15 miles away.
Every address in SO20 is covered for glazing silicone. We also cover the places around Longstock: Leckford (1 mile east), Stockbridge (1 mile south), Fullerton (2 miles north-east), Cottonworth (2 miles north-east) and Chilbolton (3 miles north-east). Further out, we also cover Winchester (9 miles south-east), Eastleigh (13 miles south-east), Andover (5 miles north), Totton (15 miles south), Chandler's Ford (11 miles south-east) and Romsey (10 miles south).
Landmarks near Longstock
In Longstock, that means homes and buildings near Longstock Park and The Peat Spade Public House and the streets around them. Well-known places in the area include Andover War Memorial Hospital (5.8 miles north). The countryside around Longstock includes Mill Lake.
What affects the cost of glazing silicone
The price is agreed before any work begins. It takes into account:
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- How many areas need sealing
What it costs depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
When you call or email, these details help:
- Photos by email, if that’s easy
- The type of property
- The rough size of the job
- Whether it has been sealed before
For glazing silicone in Longstock, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Common problems we fix in Longstock
New silicone over old silicone will not bond. Plenty of leaks come from a quick top-up over the old bead leaving a path for water.
It’s worth asking for a quote if you see:
- Cracked silicone between glass panels
- Mouldy sealant around glass panels
- Leaks from the base of a shower screen
- Drips on the inside of a conservatory window
Homes close to Church of St Mary include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- Whether VAT is included
- What insurance they hold
- The length of the guarantee
- What preparation is included
Longstock: your questions answered
Will you come out to Longstock?
Yes, Longstock is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Longstock in your area for glazing silicone?
Yes. Our work covers London and the South East, and Longstock is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Which silicone is used for glass joints?
A neutral-cure glazing silicone that suits the glass and frame. Shower screens get anti-fungal silicone.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Can you replace a misted double-glazed unit?
No. A misted unit has failed inside, and a glazier needs to replace it.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from an hour or two to most of a day, depending on the size of the job, and the area is left clean. Somewhere as small as Longstock, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the glazing and agree which joints need resealing.
- We cut away the failed silicone.
- We clean and prepare the joint.
- New glazing silicone goes in and is finished neatly.
- We inspect the work and test it where we can.
Before we arrive
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we’re working on
How to get a quote
We do not publish a price list. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or drop us an email.
Related advice
Landlords, agents and businesses in Longstock
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.
Towns and villages near Longstock
Also in Longstock
Why it’s worth doing now in Longstock
A leaking joint will not fix itself. Left, water can mark floors, damage plaster and rot timber, so it pays to deal with it early. Older cottages and farmhouses around Longstock can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
Why us?
- Domestic, commercial and hotel work
- Sanitary silicone with an anti-fungal additive in wet areas
- Sealant colour chosen to suit
- A 12-month guarantee on all work
Take a look at what affects the cost and what customers say.