West Sussex · England
Goddards Green Window Mastic
Specialist window mastic for Goddards Green: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- A bead that doesn’t match the frame
- Untidy mastic left by window fitters
- Whistling draughts around closed windows
Window mastic in Goddards Green, done properly
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Common call-outs are for leaking joints at the ends of sills and rain getting in at the frame or under the sill, on patio & French doors, aluminium frames and window sills.
Somewhere as small as Goddards Green, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
All our work comes with a one-year guarantee, wherever you are in West Sussex.
- Place
- Goddards Green (BN6)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Keep drainage slots and sill grooves clear
- Keep timber frames painted
- Air rooms to keep condensation down around windows
- Don’t aim a pressure washer at the joints
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just call 0345 464 0079 or send us an email.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
How we quote for window mastic
The quote reflects the job in front of us. We take into account:
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- The number and length of the joints
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
There’s no need for technical detail. Just tell us:
- Pictures of the joints, sent by email
- Where the property is
- Any access issues, like height or stairs
- What’s wrong with the joints now
Asking for a quote is easy: tell us what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Goddards Green: your questions answered
Do you cover Goddards Green for window mastic?
Yes. Our work covers London and the South East, and Goddards Green is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Will you come out to Goddards Green?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. We will tell you how long your job needs when we quote.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Tell us about access when you get in touch so we can plan the job.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Common problems we fix in Goddards Green
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Keep an eye out for these signs:
- Mastic that’s falling out in pieces
- Rushed sealant from a window installation
- Hard, cracked sealant around windows
- Water coming in at the bottom corners of a door
Schools such as St Paul's Catholic College are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Before you book anyone
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- How long the guarantee is
- Whether the sealant suits the joint
Also near Goddards Green
Also in Goddards Green
Why act early in Goddards Green
Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Older cottages and farmhouses around Goddards Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- Every job guaranteed for a year
- Over 20 years’ experience
- Rated 4.9 stars on Google
- Fully insured
The process
All our tools and materials come with us in the van. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take most of a day for a typical house, less for a few frames. For a village or hamlet like Goddards Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.
Read more
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
- Faulty window hardware
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- uPVC windows
- Composite doors
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- Window sills
Landlord and commercial work in Goddards Green
We also work for property managers and facilities teams. We can quote a run of properties together.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Goddards Green homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Ockenden Manor (about 3 miles north-east) are a reminder that the area around Goddards Green 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.
For an older house near a landmark such as St Edward the Confessor, the joint between an old wall and a newer frame is generally the first place rain gets in. Letting a property close to Burgess Hill station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Goddards Green is about 2 miles west of Burgess Hill, in West Sussex. For window mastic in and around Goddards Green, please phone 0345 464 0079 or drop us an email for a quick quote. We cover West Sussex from our Crawley base, Goddards Green included. Our West Sussex coverage runs to 371 places, Goddards Green among them. There’s also a page for Brighton, roughly 9 miles from Goddards Green.
Every address in BN6 is within our area for window mastic. Window mastic is available to properties on Cuckfield Road and High Hatch Lane. Main roads around Goddards Green include the A2300. Close by, we work in Hickstead (1 mile west), Abbotsford (1 mile east), Jacob's Post (1 mile east), Sayers Common (2 miles south-west) and Ansty (2 miles north). Larger places within reach include Crawley (10 miles north), Horsham (9 miles north-west), Worthing (14 miles south-west), Haywards Heath (4 miles north-east), East Grinstead (13 miles north-east) and Shoreham-by-Sea (10 miles south-west).
Local landmarks in Goddards Green
Typical jobs here are in homes near Southway Junior School. The nearest railway station is Burgess Hill station, roughly 2.1 miles south-east of the centre. Nearby you’ll also find Burgess Hill Museum (2 miles east) and Clayton Castle (4.1 miles south). Green spaces nearby include Wolstonbury Hill and Bedelands Farm Nature Reserve.