Buckinghamshire · England
Glazing Silicone in Gerrards Cross
Glazing silicone for conservatories, rooflights, glass panels and shower screens for householders, landlords and businesses in Gerrards Cross. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant that was laid over old silicone and failed
- Rooflight joints letting water in
- Shower screens leaking along the wall or tray
About our glazing silicone in Gerrards Cross
Sealant on glazing doesn’t last for ever. Sun, rain and movement wear it down, and once it cracks, water follows. Resealing puts that right. We work on glass balustrade bases, shower screens and conservatory frames, and the jobs we see most are water getting into a conservatory at the joints and leaking glazing joints on a rooflight.
Around Gerrards Cross, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- Gerrards Cross (SL9)
- Region
- Buckinghamshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Gerrards Cross
UV light ages silicone and roof joints get the most sun. Old silicone hardens, cracks and loses its grip to the glass and frame.
If you can see any of these, it’s time to have the joints looked at:
- Leaking glazing joints on a rooflight
- Drips on the inside of a conservatory window
- Glass-to-glass joints that have split
- Stained, discoloured glazing silicone
If you let a flat or house near Gerrards Cross station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Questions to ask before you book
- Are they insured?
- How much experience the applicator has
- Is the old sealant removed completely?
- How long the guarantee is
Questions from Gerrards Cross
Do you work for landlords with property near Gerrards Cross station?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Is Gerrards Cross in your area for glazing silicone?
Yes. Our work covers London and the South East, and Gerrards Cross is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear price.
Do you reseal glass shower screens?
Yes, it’s a common job. The screen is resealed with anti-fungal silicone suited to bathrooms.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you guarantee glazing sealant work?
Our 12-month guarantee applies on all our work.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you replace glass?
We do not replace glass. We look after the sealant joints and can tell you if a unit seems to have gone.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or drop us an email.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
- Structural problems with a conservatory roof
- Failed flashing around a conservatory
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Conservatory frames
- Glass balustrade bases
- Glass-to-frame joints
- Rooflights
- Shower screens
- Glass-to-glass joints
Looking after it afterwards
To keep the joints looking good and working properly:
- Clean glass with a mild cleaner and a soft cloth
- Keep air moving in the conservatory
- Squeegee the shower screen after each use
- Don’t use a blade near the sealant
Follow the cure time we give you before the joints get wet so the silicone can set properly. From then on, a mild glass cleaner is all it needs.
If silicone on glass has cracked, water is already getting in. Renewing it early keeps it simple, compared with repairing damaged frames or plaster.
Why act early in Gerrards Cross
A quick bead over the old sealant might stop a drip for a while, but new silicone will not bond to old and water soon finds its way back. Cutting out and resealing properly lasts. Homes in smaller places like Gerrards Cross can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why us?
- Over 20 years’ experience
- Sanitary silicone with an anti-fungal additive in wet areas
- Approved under the ARBOMaster scheme
- We never seal over old sealant
Read our cost guide and customer reviews.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Gerrards Cross homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to St James Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as The Gerrards Cross CofE School, larger buildings have plenty of frames, and the mastic around each one ages.
Gerrards Cross is about 5 miles north-east of Slough, in Buckinghamshire. For glazing silicone in and around Gerrards Cross, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Buckinghamshire, Gerrards Cross included. Across Buckinghamshire, we cover 263 places, Gerrards Cross among them. For nearby work, see our Reading page.
Jobs for glazing silicone in SL9 is quoted and booked the same way as anywhere else. We cover properties on Station Road, East Common and Oxford Road. Being close to the A40 and A413, Gerrards Cross is simple for us to get to. If you’re just outside Gerrards Cross, we cover Tatling End (1 mile south-east), Fulmer (1 mile south), Hedgerley Green (2 miles west), Higher Denham (2 miles east) and Baker's Wood (2 miles east). Further out, we also cover High Wycombe (9 miles west), Chesham (9 miles north), Marlow (9 miles west), Amersham (7 miles north), Beaconsfield (4 miles north-west) and Princes Risborough (15 miles north-west).
Near you in Gerrards Cross
Locally, jobs take us to homes and businesses close to St Mary's School, The Chalfonts Community College and Bulstrode Park and the streets around them. Gerrards Cross has its own railway station: Gerrards Cross station. Other landmarks nearby include Chiltern Open Air Museum (3.8 miles north) and Chalfonts and Gerrards Cross Hospital (1.7 miles north). For a walk, there’s Horse Shoe Bay and Church Wood.
How it works
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job normally takes a few hours for most jobs. For a job in Gerrards Cross, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we trace the leak and check it’s coming through a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- The glass and frame are cleaned and degreased.
- We apply a neutral-cure glazing silicone and tool it smooth.
- We check the joints and, where safe, run water over them.
Preparing for the visit
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Related advice
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.