Essex · England
Matching Green Window Mastic
Window mastic across Matching Green and nearby, with old sealant always removed completely and a one-year guarantee.
- Cracked internal joints between frame and plaster
- Black, perished sealant on frames
- Mastic that has split away from the wall
Window mastic in Matching Green
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. If you are dealing with cracked or shrunken mastic around the frame and draughts coming in around windows and doors, we can put it right, on uPVC windows, composite doors and aluminium frames alike.
In a village or hamlet like Matching Green, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Place
- Matching Green (CM17)
- Wider area
- Essex
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Matching Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Getting ready for the visit
- Mention any parking rules near the property
- Mention any tricky access
- Keep pets and children clear of the area while we work
Get a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details, and pictures are welcome.
Related advice
What the job involves on each surface
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We will tell you which suits your home.
Frames and glazing around Matching Green
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. Historic houses like Barrington Hall (about 4.1 miles north) are a reminder that the area around Matching Green 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.
If you live in an older home near Parish Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Matching Green is about 5 miles east of Harlow, in Essex. From the centre of Matching Green to the outskirts, we cover window mastic for every kind of property. We cover 644 towns and villages across Essex, large and small. We also work in Chelmsford, about 11 miles from Matching Green.
Postcode districts we cover here for window mastic: CM17. If you need window mastic at a property on Downhall Road, Potash Road and Colvers or a nearby road, our applicators can take on the job. Neighbouring places we cover for window mastic include Manwood Green (1 mile north-east), Little Laver (1 mile south-east), White Roding (2 miles north-east), Abbess Roding (2 miles east) and Moreton (3 miles south). Within a short drive, we also cover Chelmsford (11 miles east), Harlow (5 miles west), Brentwood (11 miles south), Billericay (13 miles south-east), Loughton (11 miles south-west) and Waltham Abbey (11 miles south-west).
Near you in Matching Green
The closest station to Matching Green is Sawbridgeworth station, about 3.8 miles north-west of the centre. Other landmarks nearby include Harlow Mill (4.3 miles west) and Princess Alexandra Hospital (6 miles west). Not far away are Sawbridgeworth Marsh.
Also near Matching Green
What else we do in Matching Green
FAQs for Matching Green
Do you work for landlords with property near Sawbridgeworth station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Matching Green in your area for window mastic?
Yes, Matching Green is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Do you have sealant for grey or black windows?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can new sealant go over the old?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
What should I tell you?
Let us know what needs doing and where. If we need more, we will ask.
Landlords, agents and businesses in Matching Green
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.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Signs you need window mastic in Matching Green
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Common reasons people contact us are:
- White mastic on grey or black frames
- Mastic that is falling out in pieces
- Cracked internal joints between frame and plaster
- Gaps left after new windows were fitted
For landlords with property near Sawbridgeworth station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
- What preparation is included
- What happens if they find a problem under the old sealant
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Faulty window hardware
- A door that needs adjusting, rehanging or new seals
- Rotten timber, which needs a joiner first
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Aluminium frames
- Window sills
- uPVC windows
- Timber windows & doors
- Composite doors
- Patio & French doors
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Around Matching Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Matching Green
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
- Sealant colour chosen to suit
DIY versus a professional finish
If you’re set on DIY, put the effort into 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.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.