Essex · England
Window Mastic in Bedlar's Green
Specialist window mastic for Bedlar's Green: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Sealant in the wrong colour for the frame
- Gaps where the sill meets the wall
- Old mastic that has gone black or come away
How we handle window mastic in Bedlar's Green
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. Typical jobs include cracked internal joints between frame and plaster and draughts coming in around windows and doors, across uPVC windows, composite doors and patio & French doors.
Homes in small places like Bedlar's Green 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.
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.
- Where
- Bedlar's Green (CM22)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How it works
You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes anything from an hour or two to a full day, depending on how many frames there are for a typical job. Somewhere as small as Bedlar's Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
Get a quote
For a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before work begins.
Related advice
What sealant work can’t fix
We’ll always be straight with you, so here’s what new sealant will not do:
- Damp coming through the wall itself rather than the frame joint
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- uPVC windows
- Composite doors
- Window sills
- Timber windows & doors
- Aluminium frames
- Patio & French doors
Also near Bedlar's Green
What else we do in Bedlar's Green
Bedlar's Green homes and the weather
Historic houses like Barrington Hall (about 2.3 miles south-east) are a reminder that the area around Bedlar's Green has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Bishops Stortford station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to Church of St Giles include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Bedlar's Green is about 2 miles east of Bishop's Stortford, in Essex. Whether you’re in the middle of Bedlar's Green or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Bedlar's Green is one of 644 places in Essex where we work for window mastic. We also work in Chelmsford, about 15 miles from Bedlar's Green.
Every address in CM22 is covered for window mastic. If you are just outside Bedlar's Green, we cover Start Hill (1 mile north), Takeley Street (2 miles east), Burton End (2 miles north), Takeley (2 miles east) and Hatfield Broad Oak (3 miles south-east). We also work in nearby towns such as Chelmsford (15 miles south-east), Braintree (15 miles east), Harlow (7 miles south-west), Saffron Walden (11 miles north), Waltham Abbey (15 miles south-west) and Great Dunmow (7 miles east).
What’s near Bedlar's Green
The closest station to Bedlar's Green is Bishops Stortford station, about 1.9 miles west. Other landmarks nearby include Herts and Essex Hospital (1.5 miles west) and Moated mound (4.6 miles north-west). For a walk, there’s Portingbury Hills and Rushy Mead.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Check the mastic once a year
- Ventilate rooms so frames don’t stay wet inside
- Don’t paint over the silicone
- Clear any debris from frame drain holes
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.
Why deal with it now?
If you’re painting or rendering, reseal at the same time. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Around Bedlar's Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
What you get with us
- Colour agreed with you before any work starts
- Experience in homes, commercial sites and hotels
- Colour picked to suit the job
- We are fully insured
Signs you need window mastic in Bedlar's Green
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.
These are the problems we are asked about most:
- Cracked internal joints between frame and plaster
- White mastic on grey or black frames
- Gaps left after new windows were fitted
- Old mastic that has gone black or come away
Schools such as Birchwood High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- Are they insured?
- The length of the guarantee
- Whether all the old sealant comes out first
- Whether you can choose the colour
Questions from Bedlar's Green
Can you do window mastic in Bedlar's Green?
Yes, Bedlar's Green 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.
Do you cover smaller places like Bedlar's Green?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or send us an email.
Do you work for landlords and businesses?
Yes, often. Several properties can be quoted together, and between tenancies is a good time for the work.
Will resealing my frames help with draughts?
In many cases. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
What the job involves on each surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.