Hertfordshire · England
Ashwell Glazing Silicone
Glazing silicone in Ashwell from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant that was laid over old silicone and failed
- Silicone pulling away from the glass
- Water tracking down the inner face of the glass
Glazing silicone in Ashwell
We don’t replace glass and a misted double-glazed unit needs a glazier. Our work is the sealant joints, which is where many leaks start. Typical jobs include drips on the inside of a conservatory window and stained, discoloured glazing silicone, across shower screens, glass-to-glass joints and rooflights.
Homes around Ashwell range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
Our work is backed for twelve months, in Ashwell and everywhere else we cover.

- Place
- Ashwell (SG7)
- Wider area
- Hertfordshire
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Glazing silicone in Ashwell: local notes
With historic houses such as Hinxworth Place (about 1.8 miles west) nearby, there’s older building stock in the area around Ashwell as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to St Mary's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Ashwell & Morden station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Ashwell is about 5 miles north-east of Letchworth, in Hertfordshire. Jobs in Ashwell get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 381 places across Hertfordshire, large and small. For nearby work, see our Chelmsford page (34 miles or so).
Every address in SG7 is within our area for glazing silicone. Whether your property is on High Street, Station Road and Alms Lane or a nearby road, we can help. Neighbouring places we cover for glazing silicone include Ashwell End (1 mile west), Bury End (2 miles west), Newnham (2 miles south-west), Caldecote (2 miles west) and Hinxworth (2 miles west). Within a short drive, we also cover Stevenage (9 miles south), Hitchin (8 miles south-west), Letchworth (5 miles south-west), Letchworth Garden City (5 miles south-west), Stotfold (4 miles south-west) and Baldock (4 miles south).
Near you in Ashwell
Around Ashwell, our work takes us to homes and buildings near Rose And Crown Public House. The nearest railway station is Ashwell & Morden station, about 2 miles east of the centre. Well-known places in the area include Bygrave House (2.2 miles south) and Fairfield Hospital (4.8 miles south-west). Green spaces nearby include Fox Covert.
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:
- Frames that have decayed or split
- Water coming through the roof rather than a sealant joint
- A sagging or failing conservatory roof
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Rooflights
- Glass-to-frame joints
- Glass balustrade bases
- Glass-to-glass joints
- Shower screens
- Conservatory frames
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
How to look after the new joints
A little care helps the new joints last. Our advice:
- Act on drips or damp patches early
- Check the silicone on glass every year or so
- Squeegee the shower screen after each use
- Ventilate the conservatory to cut condensation
Use mild cleaners on and around the silicone. Strong solvents can soften or mark it.
A small conservatory leak soon spreads. Water runs along frames and down walls, so get it looked at when you first see it.
How the visit works
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes a few hours for most jobs for a typical job. Parking around Ashwell is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We find where water is getting in and check whether it’s a sealant joint.
- We cut out the failed silicone, taking care of the glass and frame.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- Glazing silicone suited to the joint is applied and tooled.
- We look over every joint and, where we can, test it with water.
How to prepare
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
- For business premises, tell us about site rules or sign-in
Get a quote
To get a quote, call 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 any work starts.
Advice
Towns and villages near Ashwell
Other services in Ashwell
Questions from Ashwell
Do you cover smaller places like Ashwell?
Yes. Ashwell 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.
Do you work for landlords with property near Ashwell & Morden station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Where are you based?
Mr Mastic is based in Crawley. We cover Ashwell and the rest of Hertfordshire.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
How long does glazing silicone take?
As a guide, most jobs take a few hours for most jobs. Larger jobs naturally take longer, and we’ll tell you how long to expect.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you reseal glass shower screens?
Yes. We remove the old sealant and reseal the wall and tray joints.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Surface by surface
Shower screens
A screen’s wall joint and tray joint are where leaks start. We reseal both with anti-fungal silicone.
Glass-to-frame joints
Glass-to-frame joints need a sealant that bonds to both. We choose a product that suits both.
Why act early in Ashwell
Replacing windows or a shower screen is not needed for a failed joint. Sound glass and frames usually just need resealing, and we’ll tell you if that is not the case. In a smaller place like Ashwell, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Why choose Mr Mastic in Ashwell
- A choice of colours where the product allows
- We agree the colour with you first
- Old sealant always removed completely
- Tidy, careful work
Read our cost guide or our reviews.
Common problems we fix in Ashwell
Some conservatory leaks aren’t sealant at all: broken panels, roof problems and blocked gutters can all let water in. We find the cause before we seal anything.
The problems people usually mention when they call include:
- Leaks from the base of a shower screen
- Silicone pulling away from the glass
- Failed sealant around rooflight glass
- Black or yellowed silicone on glass joints
If you look after a building such as Ashwell Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- How long to leave it before use
- What preparation is included
- Whether all the old sealant comes out first
- What happens if the job turns out different
