Hertfordshire · England
Glazing & conservatory sealant in Colney Street, Hertfordshire
Our applicators work in Colney Street on glazing silicone for conservatories, rooflights, glass panels and shower screens. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Leaks where conservatory glass meets the frame
- Drips on the inside of a conservatory window
- Stained, discoloured glazing silicone
Frames and glazing around Colney Street
Historic houses like High Elms Manor (about 2.9 miles west) are a reminder that the area around Colney Street has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near How Wood station, glazing joints are worth checking at the end of a tenancy, before a small leak grows. If you look after a building such as Park Street Church of England Voluntary Aided Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Colney Street is about 3 miles south of St Albans, in Hertfordshire. Across the AL2 area, we cover glazing silicone for homes and businesses. Colney Street is one of 381 places in Hertfordshire we cover for glazing silicone. For nearby work, see our London page (18 miles or so).
Postcode districts we cover here for glazing silicone: AL2 and WD7. If you need glazing silicone at a property on Old Parkbury Lane, Ventura Park and Radlett Road or anywhere close by, our applicators can take on the job. Close by, we work in Frogmore (1 mile north-west), Park Street (1 mile north-west), How Wood (1 mile north-west), Bricket Wood (2 miles west) and Chiswell Green (2 miles north-west). We also work in nearby towns such as Watford (4 miles south-west), Hemel Hempstead (6 miles north-west), Stevenage (15 miles north-east), St Albans (3 miles north), Welwyn Garden City (8 miles north-east) and Harpenden (8 miles north).
Local landmarks in Colney Street
Around Colney Street, our work takes us to homes and buildings near The George and Dragon Public House and Samuel Ryder Academy and the streets around them. For rail, the closest station is How Wood station, roughly 1 mile north-west of the centre. Nearby you will also find Kingsley Green (1 mile east) and The Maltings (2.9 miles north). The countryside around Colney Street includes Verulamium Lake and Broad Colney Lakes.
Glazing silicone for homes and businesses in Colney Street
Glass replacement isn’t something we do and a misted double-glazed unit needs a glazier. Our work is the sealant joints and that’s often where the water gets in. Typical jobs include cracked silicone between glass panels and split or lifting silicone on glass, on glass-to-glass joints, glass-to-frame joints and rooflights.
Homes in small places like Colney Street often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Place
- Colney Street (AL2, WD7)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for glazing silicone
You’ll get a clear quote before any work starts. It’s based on:
- Access and height
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
What to tell us for a quote
To make quoting easier, please include:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- If someone has resealed it before
- Photos by email, if that is easy
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Common questions in Colney Street
Can you do glazing silicone in Colney Street?
Yes, Colney Street is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Is Colney Street within the area you cover?
Yes. Colney Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient.
What information do you need?
A short description and the location. We’ll ask anything else we need to know.
Can you reseal the base of a glass balustrade?
Yes. The old sealant is removed and the joint resealed using a sealant that suits the materials.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Frames that have decayed or split
- Structural problems with a conservatory roof
- Leaks from the roof covering or flashing (a roofer’s job)
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Glass-to-glass joints
- Shower screens
- Conservatory frames
- Glass balustrade bases
- Glass-to-frame joints
- Rooflights
Common problems we fix in Colney Street
Not every leak is a sealant problem: failed roof panels, slipped glazing bars and blocked gutters cause them too. That is why we trace the leak first.
The problems people usually mention when they call include:
- Water tracking down the inner face of the glass
- Leaking glazing joints on a rooflight
- Water escaping where a screen meets the wall
- Leaks where conservatory glass meets the frame
In the older streets around Church of the Holy Trinity, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Are they insured?
- Which sealant they’ll use, and why
- How much experience the applicator has
- How hidden problems are handled
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep scrapers and blades away from the silicone
- Clear the conservatory gutters regularly
- Inspect the sealant on glazing annually
- Open vents or windows to let moisture out
Keep the new joints dry for as long as we advise. After that, clean glass with a mild cleaner.
A leaking shower screen may not show at first. Water can soak into the floor or reach the room below before you spot it.
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Places near Colney Street
More services for Colney Street
Landlords, agents and businesses in Colney Street
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes anything from an hour or two to most of a day, depending on the size of the job. Somewhere like Colney Street 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.
- We start by finding the leak and making sure sealant is the cause.
- We cut out the failed silicone, taking care of the glass and frame.
- The glass and frame are cleaned and degreased.
- New glazing silicone goes in and is tooled to a neat finish.
- The finished joints are checked and, where it’s safe, tested with water.
Preparing for the visit
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or drop us an email.