Hampshire · England
Glazing & conservatory sealant in Ashton, Hampshire
Glazing silicone for conservatories, rooflights, glass panels and shower screens for Ashton, backed by a one-year guarantee. Ask us for a quote.
- Black or yellowed silicone on glass joints
- Leaking glazing joints on a rooflight
- Water escaping where a screen meets the wall
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from an hour or two to most of a day, depending on the size of the job and we leave things clean and tidy. In a small place like Ashton, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree the joints to be done.
- We cut away the failed silicone.
- We clean and prepare the joint.
- New glazing silicone goes in and is finished neatly.
- The joints are checked before we leave.
Before we arrive
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
Advice
How we handle glazing silicone in Ashton
Glazing silicone that has yellowed, blackened or come away looks poor and can leak. It comes off cleanly, without marking the glass and reseal the joint. Typical jobs include leaking glazing joints on a rooflight and sealant that was laid over old silicone and failed, across glass-to-glass joints, shower screens and glass-to-frame joints.
Homes in small places like Ashton often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Big or small, you get the same 12-month guarantee.

- Location
- Ashton (SO32)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Glass balustrade bases
We reseal the joint where the glass meets the base channel. We don’t install or replace glass.
Rooflights
Rooflights get the full force of the weather. The sealant around the glass and frame wears faster than most.
What affects the cost of glazing silicone
The price is agreed before any work begins. It takes into account:
- The product the joint needs
- The size of the job
- How easy the joints are to reach
- How many areas need sealing
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.
Asking for a quote
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- Photos by email, if that is easy
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details.
Why act early in Ashton
Dealing with a leaking shower screen early protects the floor and ceiling. A small leak can reach the floor below before it shows. Around Ashton, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
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 we start.
Why choose Mr Mastic in Ashton
- Homes, businesses and hotels
- We leave the area clean and tidy
- Fully insured
- You choose the colour before work begins
Take a look at how sealant jobs are priced or customer reviews.
Other services in Ashton
What glazing silicone looks like in Ashton
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Bishops Waltham Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Botley station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Ashton is about 5 miles north-east of Hedge End, in Hampshire. If you need glazing silicone in Ashton, it’s easy to get a quote: please phone 0345 464 0079 or email us. We are based in Crawley and cover Hampshire, Ashton included. 683 places in Hampshire are on our list. Southampton is on our list too, about 8 miles from Ashton.
We cover every part of the SO32 postcode area for glazing silicone. Close by, we work in Upham (1 mile north-west), Bishop's Waltham (1 mile south), Durley Street (1 mile south-west), Lower Upham (1 mile west) and Wintershill (2 miles west). Further out, we also cover Winchester (8 miles north-west), Gosport (12 miles south), Havant (13 miles south-east), Eastleigh (5 miles west), Fareham (8 miles south) and Horndean (10 miles south-east).
Around Ashton
Typical jobs here are in homes near Swanmore College of Technology. Ashton’s nearest station is Botley station, about 4 miles south-west. Nearby you’ll also find Bishop's Waltham Museum (1.1 miles south) and Moorgreen Hospital (5.3 miles south-west). The countryside around Ashton includes Beacon Hill and Bishops Waltham Branch LNR.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Open vents or windows to let moisture out
- Don’t use a blade near the sealant
- Use gentle products around the joints
- Look over the glazing joints once a year
Check the joints once a year. Catching a split early keeps the repair small.
Drips or damp near a glazing joint shouldn’t be ignored. The cause may be sealant or another part, and we will tell you which.
Common questions in Ashton
I let a flat near Botley station. Can you help?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover smaller places like Ashton?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you reseal the base of a glass balustrade?
We can, if the base joint is sealed. Send us photos and we will take a look when you call 0345 464 0079 or email us.
Do you reseal glass shower screens?
Yes. We remove the old silicone carefully, and the joints are cleaned and resealed.
Can a conservatory leak be sealed?
Often, if the leak is at a sealant joint. We trace the leak first before any sealing.
How long does the job take?
As a guide, most jobs take a few hours for most jobs. Bigger jobs take longer, and we will tell you how long to expect.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Signs you need glazing silicone in Ashton
New silicone over old silicone won’t bond. Many failed joints we see have been topped up rather than cut out, and water gets between the layers.
Common reasons people contact us include:
- Stained, discoloured glazing silicone
- Glazing silicone that has cracked or come away
- Water escaping where a screen meets the wall
- Leaks where conservatory glass meets the frame
If you live in an older home near Church of St Peter, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- The length of the guarantee
- Whether the sealant suits the joint
- How much experience the applicator has
- What happens if they find a problem under the old sealant
