Windsor and Maidenhead · England
Glazing Silicone in Dedworth
Glazing silicone across Dedworth and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Leaks from the base of a shower screen
- Silicone pulling away from the glass
- Leaks where conservatory glass meets the frame
Frames and glazing around Dedworth
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as St Leonard's Hill (about 0.6 miles south) nearby, there’s older building stock in the area around Dedworth as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For landlords with property near Windsor & Eton Central station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. Managing a site like Dedworth Green First School? Then its window and door frames need their mastic kept sound, just like a home’s.
Dedworth is about 1 mile west of Windsor, in Windsor and Maidenhead. Every kind of property in Dedworth is covered for glazing silicone, old or new, large or small. Every job comes with our 12-month guarantee. Dedworth is one of 57 towns and villages in Windsor and Maidenhead where we work for glazing silicone. Reading is on our list too, about 14 miles from Dedworth.
We cover every part of SL4 for glazing silicone and the streets around it. That includes homes and businesses on Ash Lane, Wolf Lane and Roses Lane and the roads around them. Other places close to Dedworth include Windsor (1 mile east), Oakley Green (1 mile west), Boveney (1 mile north), Clewer (1 mile north-east) and Water Oakley (1 mile north-west). Larger places within reach include Maidenhead (5 miles north-west), Boyn Hill (5 miles north-west), North Ascot (5 miles south-west), Cookham (7 miles north-west), Furze Platt (6 miles north-west) and Broomhall (6 miles south). Dedworth is one of the larger places we cover in Windsor and Maidenhead.
Around Dedworth
We work in homes and buildings around Windsor Girls' School, Windsor Girls' School and The Greene Oak pub, among other places. Dedworth’s nearest station is Windsor & Eton Central station, roughly 1.7 miles east. Other landmarks nearby include Windsor Castle (1.9 miles east) and King Edward VII Hospital (1.5 miles east). Open spaces near Dedworth include Bray Pit and Taplow Lake.
How we handle glazing silicone in Dedworth
A frameless shower screen depends on its silicone. Leaks usually come from the wall joint or the tray joint, and we reseal both. Common call-outs are for leaks where conservatory glass meets the frame and leaking glazing joints on a rooflight, on rooflights, conservatory frames and glass-to-glass joints.
In smaller places like Dedworth, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or send us an email.
- Location
- Dedworth (SL4)
- Region
- Windsor and Maidenhead
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Dedworth
Replacing a conservatory roof is major work. If the leak is a failed sealant joint renewing the joint is the simpler fix. If it’s the roof itself, we will tell you. In an older home around Dedworth, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Doing several joints on one visit generally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why us?
- Sealant colour chosen to suit
- Tidy, careful work
- ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
Honest limits
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Failed flashing around a conservatory
- Cracked or broken glass
- Frames that have decayed or split
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Rooflights
- Shower screens
- Conservatory frames
- Glass-to-frame joints
- Glass-to-glass joints
- Glass balustrade bases
What affects the quote in Dedworth
Jobs vary more than people expect. The main factors:
- How easy the joints are to reach
- The number of rooms or windows
- Which sealant suits the joint
- Working hours on commercial sites
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- A few photos by email, if you can
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or drop us an email.
Surface by surface
Rooflights
A rooflight faces rain and sun from above. Its sealant ages faster than vertical joints.
Conservatory frames
Frame joints face sun and rain all year. A fresh bead seals them again.
What we’re called out for in Dedworth
Not every leak is a sealant problem: broken panels, roof problems and blocked gutters can all let water in. We find the cause before we seal anything.
The most common problems we see are:
- New silicone smeared over old sealant
- Water escaping where a screen meets the wall
- Glazing silicone that has cracked or come away
- Failed joints on frameless glass
In the older streets around All Saints Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- Is the old sealant removed completely?
- How long to leave it before use
- Whether VAT is included
- How much experience the applicator has
Also near Dedworth
What else we do in Dedworth
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
How the visit works
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. The work generally takes anything from an hour or two to most of a day, depending on the size of the job. For a job in Dedworth, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we check where the water gets in.
- The failed silicone is cut out without marking the glass or frame.
- The joint is cleaned and degreased.
- A neutral-cure glazing silicone is applied and tooled.
- Each joint is checked and, where possible, water-tested.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
How to get a quote
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
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Questions from Dedworth
Do you work for landlords with property near Windsor & Eton Central station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Will you come out to Dedworth?
Yes. Dedworth is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you reseal a frameless shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Can you just put new silicone over the old?
New silicone won’t bond to old silicone, so a top-up soon lets water through. We cut out the old sealant first.
Do you guarantee glazing sealant work?
Our 12-month guarantee applies on all our work.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours for most jobs. We’ll tell you when we quote.