Hertfordshire · England
Glazing Silicone in Broad Colney
Glazing silicone for conservatories, rooflights, glass panels and shower screens for householders, landlords and businesses in Broad Colney. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Cracked silicone between glass panels
- Water getting into a conservatory at the joints
- Black or yellowed silicone on glass joints
Glazing silicone for homes and businesses in Broad Colney
Across Broad Colney, we reseal glazing joints in homes, offices and hotels. Conservatories, rooflights, glass panels and shower screens are all part of the job, with a sealant chosen for the joint. We work on glass-to-glass joints, shower screens and glass-to-frame joints, and the jobs we see most are conservatory leaks at frame and glazing joints and stained, discoloured glazing silicone.
Homes in small places like Broad Colney 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.
All our work comes with a 12-month guarantee.
- Place
- Broad Colney (AL2)
- Region
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Water coming through the roof rather than a sealant joint
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
- A broken pane or roof panel
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Glass-to-glass joints
- Conservatory frames
- Rooflights
- Glass balustrade bases
- Shower screens
- Glass-to-frame joints
Places near Broad Colney
Other services in Broad Colney
Broad Colney: your questions answered
I let a flat near Park Street station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is Broad Colney in your area for glazing silicone?
Yes, Broad Colney is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Is it enough to run a bead over the old sealant?
It does not last. The new bead can’t grip the old one so we take it all out and start clean.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can a conservatory leak be sealed?
That depends where the water is getting in. Failed glazing and frame joints can be resealed but roof and panel problems need another trade.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Quotes for glazing silicone in Broad Colney
Call for a quick quote. The main things that affect it are:
- How easy the joints are to reach
- Mould in or behind the old joints
- The size of the job
- Working hours on commercial sites
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
Before you ask for a quote, have a think about:
- How many joints, rooms or windows are involved
- The address or postcode of the job
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
What glazing silicone looks like in Broad Colney
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. With historic houses such as High Elms Manor (about 4.1 miles west) nearby, there’s older building stock in the area around Broad Colney as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Park Street station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. If you live in an older home near Church of St Peter, 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 Saint Bernadette Catholic Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Broad Colney is about 3 miles south-east of St Albans, in Hertfordshire. Wherever you are in the AL2 postcode area, our applicators can take on glazing silicone. We cover 381 towns and villages across Hertfordshire, large and small. London is on our list too, about 17 miles from Broad Colney.
Jobs for glazing silicone in AL2 is quoted and booked the same way as anywhere else. Close by, we work in London Colney (1 mile north), Shenleybury (1 mile south-east), Tyttenhanger (2 miles north), Sleapshyde (3 miles north-east) and Colney Heath (3 miles north-east). Within a short drive, we also cover Watford (6 miles south-west), Hemel Hempstead (7 miles west), Stevenage (14 miles north), St Albans (3 miles north-west), Welwyn Garden City (7 miles north-east) and Harpenden (7 miles north).
What’s near Broad Colney
Locally, jobs take us to homes and businesses close to The White Lion pub and Samuel Ryder Academy and the streets around them. For rail, the closest station is Park Street station, about 1.9 miles north-west. A little further out are Hilfield Castle (4.5 miles south) and Radlett and District Museum (2.5 miles south). Open spaces near Broad Colney include Verulamium Lake and Broad Colney Lakes.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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 does not work out, we can still put it right.
What we do, step by step
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from an hour or two to most of a day, depending on the size of the job. In a small place like Broad Colney, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We find where water is getting in and check whether it’s a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- The glass and frame are cleaned and degreased.
- New glazing silicone goes in and is tooled to a neat finish.
- We check the joints and, where safe, run water over them.
Preparing for the visit
- Clear items away from the joints we’re working on
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
Getting a quote
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
Advice
Surface by surface
Glass balustrade bases
Glass balustrades sit in a channel that is often finished with sealant. Failed sealant there lets water collect.
Shower screens
A screen’s wall joint and tray joint are where leaks start. We reseal both with anti-fungal silicone.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Stick to mild cleaners on glass
- Squeegee the shower screen after each use
- Keep air moving in the conservatory
- Keep conservatory gutters clear of leaves
Look over the glazing joints every year or so. Spotting a crack early means a simpler fix, before water gets in.
Drips or damp near a glazing joint shouldn’t be ignored. The cause may be sealant or another part and we’ll find out which.
Landlords, agents and businesses in Broad Colney
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.