Midlothian · Scotland
Glazing & conservatory sealant in Howgate, Midlothian
Glazing silicone across Howgate and nearby, with old sealant always removed completely and a 12-month guarantee.
- Conservatory leaks at frame and glazing joints
- Mouldy sealant around glass panels
- Water tracking down the inner face of the glass
Honest limits
Sealant isn’t the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- Condensation trapped between two panes
- A frame that needs repairing or replacing
- Failed flashing around a conservatory
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Glass balustrade bases
- Shower screens
- Rooflights
- Conservatory frames
- Glass-to-frame joints
- Glass-to-glass joints
How we handle glazing silicone in Howgate
A frameless shower screen depends on its silicone. Leaks normally come from the wall joint or the tray joint, and we reseal both. If you’re dealing with glass-to-glass joints that have split and stained, discoloured glazing silicone, we can help, whatever the surface.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Our work is backed for twelve months.
- Location
- Howgate (EH26)
- Wider area
- Midlothian
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we’re called out for in Howgate
The wrong sealant is a common cause. Not every silicone sticks properly to glass and vinegar-smelling acetoxy silicone can attack some metals.
Signs it’s time to call us include:
- Leaks where conservatory glass meets the frame
- Silicone pulling away from the glass
- Leaking glazing joints on a rooflight
- Water running down inside the glass
If you look after a building such as Wellington School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What the cure time is
- How long the guarantee is
- What happens if the job turns out different
- Which sealant they’ll use, and why
Towns and villages near Howgate
More services for Howgate
The process
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a few hours for most jobs in most cases. Somewhere like Howgate may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We look at the glazing and agree which joints need resealing.
- Old sealant is removed from the glass and frame.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
What affects the cost of glazing silicone
We quote each job individually. These are the things that affect it:
- How many areas need sealing
- The size of the job
- Mould in or behind the old joints
- The type of sealant required
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Asking for a quote
What to tell us when you ask for a quote:
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
Want a quote for glazing silicone? Please send an email to info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
What glazing silicone looks like in Howgate
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
For an older house near a landmark such as Howgate Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Howgate is about 2 miles south-east of Penicuik, in Midlothian. If you need glazing silicone in Howgate, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We cover Midlothian from our Crawley base, Howgate included. We cover 33 towns and villages across Midlothian, from the larger towns to small villages. We also work in Edinburgh, about 9 miles from Howgate.
Here we cover the EH26 postcode area for glazing silicone. Other places close to Howgate include Penicuik (2 miles north-west), Milton Bridge (3 miles north), Silverburn (3 miles north-west), Swanston (6 miles north) and Bonaly (6 miles north). Larger places within reach include Bonnyrigg (6 miles north-east), Dalkeith (8 miles north-east), Loanhead (5 miles north), Gorebridge (6 miles east), Newtongrange (7 miles north-east) and Mayfield (8 miles north-east).
Landmarks near Howgate
Locally, jobs take us to homes and businesses close to Penicuik High School. Other landmarks nearby include Ravensneuk Castle (1.6 miles west) and Penicuik Paper Heritage Museum (1.1 miles north-west). The countryside around Howgate includes Turnhouse Hill and Edgelaw Reservoir.
DIY sealant or a professional job?
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.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
How the job changes by surface
Shower screens
A screen’s wall joint and tray joint are where leaks start. Both are resealed with anti-fungal silicone.
Rooflights
A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.
Howgate questions
Can you do glazing silicone in Howgate?
Yes. We work across all of Scotland, and Howgate is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing.
Is glazing silicone in Howgate guaranteed?
All our work, in Howgate and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
What should I tell you?
Let us know what needs doing and where, plus pictures if you have them. We’ll ask anything else we need to know.
Is a special sealant needed for glass?
A neutral-cure glazing silicone suited to glass and the frame. Shower screens get anti-fungal silicone.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Can a conservatory leak be sealed?
It depends on the cause. Failed glazing and frame joints can be resealed but roof and panel problems need another trade.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
For landlords and businesses
We also work for property managers and facilities teams in Howgate and across Midlothian. Several sites can go on one quote.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.