Essex · England
Window & door mastic in Chatham Green, Essex
We cover Chatham Green for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Gaps between the frame and the inside reveal
- Sealant in the wrong colour for the frame
- Black, perished sealant on frames
Leave it or put it right?
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. Problems with the glass or gaskets are for a window company, and we will say so. In a small place like Chatham Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
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. The price is agreed before we begin.
What you get with us
- Neat joints and a tidy finish
- A sealant colour to suit the surroundings
- Homes, businesses and hotels
- Over 20 years’ experience
Read how sealant jobs are priced and customer reviews.
About our window mastic in Chatham Green
Frames and walls do not move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you have gaps between the frame and the inside reveal and cracked sealant at the sill ends, we can help.
Homes in small places like Chatham Green 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.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Chatham Green (CM3)
- Region
- Essex
- Cover
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Chatham Green, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Towns and villages near Chatham Green
Also in Chatham Green
Do you need window mastic in Chatham Green?
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
The problems people usually mention when they call include:
- Hard, cracked sealant around windows
- A bead that doesn’t match the frame
- Untidy mastic left by window fitters
- Mastic that’s falling out in pieces
If you let a flat or house near Beaulieu Park station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What to look for in a quote
- How hidden problems are handled
- When the joint can take water or movement
- What insurance they hold
- Is VAT in the price?
How we quote for window mastic
We quote each job individually. These are the things that affect it:
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- The number of rooms or windows
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Whether it has been sealed before
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
- Where the property is
Need a quote? Please ring 0345 464 0079 or email us with a few details. We will explain what we’d do and send you a clear quote before work begins.
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a handful of frames, longer for a whole house, depending on how much there is to do. In a small place like Chatham Green, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
How to prepare
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
Ask for a quote
Every job is quoted individually. Just phone 0345 464 0079 or drop us an email with the details and send photos if you have them.
Read more
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Air rooms to keep condensation down around windows
- Make sure the drainage slots aren’t blocked
- Keep solvents and bleach off the sealant
- Look round the frames every year or so
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Surface by surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Frames and glazing around Chatham Green
The South East is one of the drier parts 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 Church of St John the Evangelist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Chatham Green is about 5 miles north of Chelmsford, in Essex. For window mastic in and around Chatham Green, please ring 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Essex. 644 places in Essex are on our list.
Postcode districts we cover here for window mastic: CM3. We also cover the places around Chatham Green: Little Leighs (1 mile north-east), Howe Street (1 mile south-west), Hartford End (2 miles north-west), Willows Green (2 miles north) and Ford End (3 miles west). Further out, we also cover Chelmsford (5 miles south), Braintree (6 miles north-east), Brentwood (15 miles south-west), Maldon (10 miles south-east), Billericay (13 miles south) and Witham (6 miles east).
Local landmarks in Chatham Green
The closest station to Chatham Green is Beaulieu Park station, about 4.1 miles south of the centre. Other landmarks nearby include Broomfield Hospital (2.9 miles south). For a walk, there’s Sandylay and Moat Woods.
Chatham Green questions
Is Chatham Green within the area you cover?
Yes. Chatham Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Beaulieu Park station. Can you help?
Yes. We work for landlords and letting agents as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we are using.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can you do the inside joint as well?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit. We confirm the timing with your quote.
