Hertfordshire · England
Glazing & conservatory sealant in Long Marston, Hertfordshire
Our applicators work in Long Marston on glazing silicone for conservatories, rooflights, glass panels and shower screens. Old material cut out, joints cleaned and sealed neatly.
- Rooflight joints letting water in
- Silicone pulling away from the glass
- Stained, discoloured glazing silicone
About our glazing silicone in Long Marston
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. Each joint is cut out, cleaned and resealed. If you’re dealing with split or lifting silicone on glass and water tracking down the inner face of the glass, we can help, on glass-to-frame joints, shower screens and conservatory frames alike.
Homes in small places like Long Marston 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Long Marston (HP23)
- Wider area
- Hertfordshire
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Why it’s worth doing now in Long Marston
You don’t need new glazing because the sealant has gone. Sound glass and frames generally just need resealing. In a small place like Long Marston, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Why Long Marston clients choose us
- We never seal over old sealant
- ARBOMaster approved applicator
- You choose the colour before work begins
- Rated 4.9 stars on Google
See our cost guide and our reviews.
Frames and glazing around Long Marston
With historic houses such as Ascott House (about 4.3 miles north) nearby, there’s older building stock in the area around Long Marston as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
If you live in an older home near Church of All Saints (Church of England), the joint between an old wall and a newer frame is usually the first place rain gets in. If you look after a building such as Long Marston VA Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Long Marston is about 5 miles east of Aylesbury, in Hertfordshire. For glazing silicone in and around Long Marston, please phone 0345 464 0079 or drop us an email for a quick quote. We cover Hertfordshire from our Crawley base, Long Marston included. Across Hertfordshire, we cover 381 places, Long Marston among them. For nearby work, see our Oxford page (23 miles or so).
Work in HP23 is quoted and booked the same way as anywhere else. If you need glazing silicone at a property on Station Road, Chapel Lane and Bromley or a nearby road, we can help. Neighbouring places we cover for glazing silicone include Astrope (1 mile south), Puttenham (1 mile south-west), Buckland (2 miles south), Aston Clinton (2 miles south-west) and Wingrave (3 miles north-west). We also work in nearby towns such as Hemel Hempstead (12 miles south-east), Harpenden (15 miles east), Berkhamsted (7 miles south-east), Tring (3 miles south-east), Chorleywood (15 miles south-east) and Grovehill (11 miles south-east).
Near you in Long Marston
Long Marston’s nearest station is Cheddington station, about 2.4 miles north-east of the centre. Nearby you will also find Tindal Centre (4.4 miles west) and Pitstone Green Museum (2.6 miles east). Green spaces nearby include Ivinghoe Beacon and College Lake nature reserve.
How it works
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from an hour or two to most of a day, depending on the size of the job. Somewhere like Long Marston needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we check where the water gets in.
- The failed silicone is cut out without marking the glass or frame.
- We clean the glass and frame so the new silicone bonds.
- A neutral-cure glazing silicone is applied and tooled.
- Each joint is checked and, where possible, water-tested.
Getting ready for the visit
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
- Let us know about stairs, lifts or work at height
Getting a quote
For glazing silicone in Long Marston, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Questions from Long Marston
Do you work for landlords with property near Cheddington station?
Yes, rental work is part of what we do. You can call 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.
Can you do glazing silicone in Long Marston?
Yes, Long Marston is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Do you reseal glass shower screens?
Yes. We remove the old silicone carefully, and the joints are cleaned and resealed.
Can you just put new silicone over the old?
A top-up rarely holds. Fresh silicone will not bond to cured silicone so we take it all out and start clean.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Long Marston.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints.
What we’re called out for in Long Marston
On shower screens, constant water and cleaning products wear silicone. Mould grows into the bead and the edges begin to peel.
The most common problems we see are:
- Leaking glazing joints on a rooflight
- Stained, discoloured glazing silicone
- Cracked silicone between glass panels
- Water tracking down the inner face of the glass
For landlords with property near Cheddington station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Before booking anyone
- When the joint can take water or movement
- Who turns up on the day
- What happens if they find a problem under the old sealant
- How long the guarantee is
Quotes for glazing silicone in Long Marston
We don’t publish a price list, because jobs vary so much. The quote depends on:
- The product the joint needs
- The size of the job
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Whether it has been sealed before
- The problem you’ve noticed
- A few pictures by email, if you can
- If it’s domestic, commercial or a hotel
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Honest limits
In fairness, some problems need a different trade:
- A frame that needs repairing or replacing
- Structural problems with a conservatory roof
- A sealed unit that has misted inside
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Glass-to-glass joints
- Glass balustrade bases
- Glass-to-frame joints
- Conservatory frames
- Shower screens
- Rooflights
What the job involves on each surface
Glass-to-frame joints
The sealant must stick to glass and frame alike. We use a glazing silicone suited to each.
Shower screens
Silicone holds the water in on frameless screens. We renew it without marking the glass.
