Hertfordshire · England
Brickendon Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Brickendon and across Hertfordshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Cracked sealant at the sill ends
- Mastic that has split away from the wall
- Whistling draughts around closed windows
Window mastic in Brickendon, done properly
The new joint does not have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. Common call-outs are for cracked sealant at the sill ends and hard, cracked sealant around windows, on aluminium frames, uPVC windows and timber windows & doors.
In a village or hamlet like Brickendon, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
There’s a 12-month guarantee on every job, large or small.
- Place
- Brickendon (SG13)
- Wider area
- Hertfordshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. In a small place like Brickendon, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Clear the area around the work
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
Get a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand.
Related advice
What affects the quote in Brickendon
Call for a quick quote. What matters most is:
- Mould in or behind the old joints
- How many areas need sealing
- When we can work, for business premises
- Access and height
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What to tell us for a quote
To make quoting easier, please include:
- The problem you’ve noticed
- Roughly how big the job is
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details.
Work for landlords, hotels and businesses
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.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Repaint timber before it’s bare
- Keep paint off silicone joints
- Air rooms to keep condensation down around windows
- Wash the frames with mild soapy water
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
When it is not the sealant
In fairness, some problems need a different trade:
- Broken hinges, locks or handles
- Draughts through the window seals rather than the frame
- Damp problems in the wall away from the window
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Window sills
- Composite doors
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Aluminium frames
Why act early in Brickendon
The work is quick compared with the damage it prevents: it takes a few hours for a few frames, or a day or more for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Where a wall is exposed, as many are in small places like Brickendon, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit generally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why us?
- Homes, businesses and hotels
- Over 20 years’ experience
- We agree the colour with you first
- We’re fully insured
Take a look at what affects the cost and what customers say.
Surface by surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain cannot run into the wall.
Windows and doors in Brickendon
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Holy Cross & St Alban, the joint between an old wall and a newer frame is usually the first place rain gets in. Rented homes near Bayford station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Brickendon is about 3 miles west of Hoddesdon, in Hertfordshire. For window mastic in and around Brickendon, it’s easy to get a quote: please ring 0345 464 0079 or email us. We’re based in Crawley and cover Hertfordshire, Brickendon included. Our area takes in 381 places across Hertfordshire, large and small. We also work in London, about 18 miles from Brickendon.
Here we cover the SG13 postcode area for window mastic. We also cover the places around Brickendon: Wormley West End (2 miles south-east), Goose Green (2 miles east), Horns Mill (2 miles north), High Leigh (2 miles east) and Woollensbrook (2 miles north-east). Further out, we also cover Watford (15 miles south-west), Stevenage (11 miles north), St Albans (11 miles west), Bishop's Stortford (13 miles north-east), Welwyn Garden City (6 miles north-west) and Harpenden (12 miles west).
Around Brickendon
In Brickendon, that means homes and buildings near The Farmer's Boy pub, among other places. Brickendon’s nearest station is Bayford station, about 0.6 miles west of the centre. Other landmarks nearby include The National Speedway Museum (1.2 miles south-east) and Hertford County Hospital (2.8 miles north). Not far away are Cheshunt Lake and Danemead.
Brickendon questions
Do you cover Brickendon for window mastic?
Yes. We work across London and the South East, and Brickendon is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear price.
I let a flat near Bayford station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Are you insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
How long will my window job take?
A few frames take a few hours, while a whole house takes longer. You’ll get a timescale with the quote.
Can I add another job to the visit?
Yes. More than one area can go on one quote.