West Sussex · England
Window Mastic in Thakeham
Window and door frames in Thakeham need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
- Untidy mastic left by window fitters
FAQs for Thakeham
Will you come out to Thakeham?
Yes. Thakeham 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.
Is Thakeham in your area for window mastic?
Yes, Thakeham is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
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.
Do you work for letting agents?
Yes, often. Several properties can go on one quote.
Do you guarantee window mastic?
Yes, with our 12-month guarantee. Keeping drainage clear and checking the joints yearly helps them last.
Can new window sealant be painted?
Most silicone cannot be painted. Let us know beforehand, and we’ll use a paintable product where it suits.
Where is Mr Mastic based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
About our window mastic in Thakeham
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty. If the draught is through the window seals instead, we’ll tell you. If you have rain getting in at the frame or under the sill and cold air getting in at the frame edge, we can help.
Around Thakeham, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Where
- Thakeham (RH20)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Thakeham
Other services in Thakeham
Why act early in Thakeham
Resealing frames is a short job: the visit takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. In a small place like Thakeham, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
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 Thakeham
- Tidy, careful work
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
Take a look at our cost guide or customer reviews.
What the job involves on each surface
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.
Frames and glazing around Thakeham
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. Historic houses like Parham House (about 3.6 miles south-west) are a reminder that the area around Thakeham 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 is traditional sand mastic.
Managing a site like Rydon Community College? Then its window and door frames need their mastic kept sound, just like a home’s. Homes close to The Parish Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Thakeham is about 8 miles north of Worthing, in West Sussex. If you need window mastic in Thakeham, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover West Sussex from our Crawley base. Thakeham is one of 371 places in West Sussex we cover for window mastic. There’s also a page for Crawley, roughly 15 miles from Thakeham.
Postcode districts we cover here for window mastic: RH20. Whether your property is on The Street, Bramble Lane and Cray's Lane or a nearby road, we can help. If you are just outside Thakeham, we cover Abingworth (1 mile south-west), Warminghurst (1 mile south-east), Goose Green (1 mile north-east), West Chiltington (1 mile north-west) and Heath Common (1 mile south). Larger places within reach include Crawley (15 miles north-east), Horsham (9 miles north-east), Worthing (8 miles south), Haywards Heath (15 miles east), Burgess Hill (13 miles east) and Littlehampton (10 miles south-west).
Near you in Thakeham
The closest station to Thakeham is Pulborough station, about 4.1 miles west. A little further out are The Storrington And District Museum (2.2 miles south-west). Open spaces near Thakeham include Knepp Wildland and Chanctonbury Hill.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Keep solvents and bleach off the sealant
- Repaint timber before it’s bare
- Keep drainage slots and sill grooves clear
- Wash the frames with mild soapy water
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
Leaks usually 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.
What we do, step by step
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. Somewhere like Thakeham needs a little journey planning: 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.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- 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
- On commercial sites, let us know about site rules
- Mention any tricky access
Ask for a quote
For window mastic in Thakeham, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Related advice
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
When to call us in Thakeham
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
The most common problems we see are:
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
- Rushed sealant from a window installation
- Cracked sealant at the sill ends
For landlords with property near Pulborough station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Comparing quotes
- How long to leave it before use
- How the joint is cleaned and prepared
- How hidden problems are handled
- Whether the sealant suits the joint
When something else is needed
We will not take on work that won’t last, so these are the limits:
- A frame that has rotted at the joint
- Condensation trapped between the panes
- Penetrating damp from a failed cavity tray or render
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- Composite doors
- Window sills
- uPVC windows
