Essex · England
Window Mastic in Shelley
Window and door frames in Shelley need attention? We cut out the old, prepare the joints and apply the right sealant.
- Cold air getting in at the frame edge
- Cracked internal joints between frame and plaster
- Untidy mastic left by window fitters
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Check the mastic once a year
- Avoid blasting the frames with a pressure washer
- Repaint timber before it’s bare
- Use gentle cleaners on frames and sealant
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
Window mastic for homes and businesses in Shelley
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. To get one, ring 0345 464 0079 or send us an email with the number of frames and any access details. If you have leaking joints at the ends of sills and gaps left after new windows were fitted, we can help.
Somewhere as small as Shelley, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Where
- Shelley (CM5)
- Region
- Essex
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Shelley
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. Backing rod sets the right depth.
Look out for these signs:
- Cracked internal joints between frame and plaster
- Damp patches on the reveal after heavy rain
- Draughts coming in around windows and doors
- Hard, cracked sealant around windows
Homes close to Church of St Peter include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- What product goes in the joint
- What preparation is included
- Are they insured?
- Which colour the sealant will be
What window mastic looks like in Shelley
Historic houses like Hill Hall (about 4.8 miles south-west) are a reminder that the area around Shelley has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Ongar Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Shelley is about 7 miles south-east of Harlow, in Essex. Every kind of property in Shelley is covered for window mastic. Every job comes with our 12-month guarantee. Our Essex coverage runs to 644 places, Shelley among them. You can also see our page for Chelmsford, roughly 11 miles from Shelley.
We work across CM5 for window mastic and the streets around it. Window mastic is available to properties on St Peter's Avenue, Bewlay Close and Queensway. Other places close to Shelley include Chipping Ongar (1 mile south), Greensted (1 mile south-west), High Ongar (1 mile south-east), Bobbingworth (1 mile north-west) and Greensted Green (2 miles west). Within a short drive, we also cover Chelmsford (11 miles east), Basildon (14 miles south-east), Harlow (7 miles north-west), Brentwood (7 miles south-east), Billericay (10 miles south-east) and Loughton (9 miles south-west).
Near you in Shelley
In Shelley, that means homes and buildings near The Ongar Academy and The Cock Tavern and the streets around them. A little further out are Willingale Doe (4 miles north-east) and St. Margaret's Hospital (5.1 miles west). The countryside around Shelley includes Gernon Bushes.
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. In a small place like Shelley, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
Read more
Why it’s worth doing now in Shelley
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Older cottages and farmhouses around Shelley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
What you get with us
- Anti-fungal silicone where joints get wet
- White, clear, grey or coloured to suit, where the product allows
- 20+ years of sealant experience
- Sealant colour chosen to suit
What sealant work can’t fix
It helps to know what we can’t do too:
- A failed sealed unit that has misted up
- A frame that has rotted at the joint
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Aluminium frames
- Composite doors
- Patio & French doors
- uPVC windows
- Window sills
- Timber windows & doors
What else we do in Shelley
Shelley: your questions answered
Can you do window mastic in Shelley?
Yes. We work across London and the South East, and Shelley is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Will you come out to Shelley?
Yes. Shelley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Where do you work from?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before any work starts.
How do I get a quote for window mastic in Shelley?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Surface by surface
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.
Landlords, agents and businesses in Shelley
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.