West Sussex · England
Window Mastic in Mackerel's Common
Window mastic for Mackerel's Common, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Black, perished sealant on frames
- Sealant in the wrong colour for the frame
- Rushed sealant from a window installation
Window mastic in Mackerel's Common, done properly
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Typical jobs include untidy mastic left by window fitters and water coming in at the bottom corners of a door, across patio & French doors, aluminium frames and timber windows & doors.
Mastic can only go onto a dry, clean joint, so window work in Mackerel's Common is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All our work comes with a 12-month guarantee, wherever you are in West Sussex.
- Location
- Mackerel's Common (RH14)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We’ll point out any rot we find, as that’s a job for a joiner.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.
What happens if it’s left?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Around Mackerel's Common, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Mackerel's Common
- White, clear, grey or another colour, product permitting
- Neat joints and a tidy finish
- A sealant colour to suit the surroundings
- Full insurance on every job
Take a look at our cost guide or what customers say.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
- Broken hinges, locks or handles
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
Where we work in Mackerel's Common
- Composite doors
- uPVC windows
- Window sills
- Timber windows & doors
- Aluminium frames
- Patio & French doors
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we quote for window mastic
We quote each job individually. These are the things that affect it:
- The product the joint needs
- How easy the joints are to reach
- The old material and how stubborn it is
- Whether there’s mould to deal with
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Helping us quote
When you call or email, it’s useful to know:
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- How we’d reach the joints
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or send us an email.
Places near Mackerel's Common
More services for Mackerel's Common
How it works
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a morning for a couple of windows and a door in most cases. For a village or hamlet like Mackerel's Common, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Move anything stored near the joints
- Let us know about stairs, lifts or work at height
Getting a quote
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job.
Read more
Window mastic in Mackerel's Common: local notes
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Petworth House (about 4.6 miles south-west) are a reminder that the area around Mackerel's Common has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Billingshurst station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Mackerel's Common is about 10 miles west of Horsham, in West Sussex. If you need window mastic in Mackerel's Common, please call 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover West Sussex, Mackerel's Common included. Mackerel's Common is one of 371 places in West Sussex we cover. For nearby work, see our Crawley page, about 16 miles away.
Jobs for window mastic in RH14 works the same way as everywhere else we cover. If you are just outside Mackerel's Common, we cover Kirdford (1 mile south), Plaistow (2 miles north), Ifold (2 miles north), Balls Cross (2 miles south-west) and Wisborough Green (2 miles south-east). We also work in nearby towns such as Horsham (10 miles east), Broadfield (15 miles east), Storrington (9 miles south-east), Billingshurst (5 miles east), Bewbush (15 miles east) and Angmering (15 miles south).
Local landmarks in Mackerel's Common
For rail, the closest station is Billingshurst station, roughly 4.8 miles south-east of the centre. For a walk, there’s The Mens and Shillinglee Lake.
Common problems we fix in Mackerel's Common
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 cannot flex. That’s what backing rod is for.
Most people get in touch after spotting something like this:
- Cracked or shrunken mastic around the frame
- Draughts coming in around windows and doors
- Rain getting in at the frame or under the sill
- Untidy mastic left by window fitters
In the older streets around The Parish Church of St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Is the old sealant removed completely?
- What insurance they hold
- Which colour the sealant will be
- Who turns up on the day
Common questions in Mackerel's Common
Is Mackerel's Common in your area for window mastic?
Yes. We work across London and the South East, and Mackerel's Common is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Can you help a landlord with a rental near Billingshurst station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or email us.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Where are you based?
We work from Crawley. We cover Mackerel's Common and the rest of West Sussex.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.