West Sussex · England
Broadwater Window Mastic
Window mastic in Broadwater from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Black, perished sealant on frames
- White mastic on grey or black frames
- Cracked internal joints between frame and plaster
How the visit works
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a morning for a couple of windows and a door. A visit to Broadwater is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Getting ready for the visit
- Let us know about parking restrictions
- Move anything stored near the joints
- Mention any tricky access
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Advice
About our window mastic in Broadwater
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on uPVC windows, patio & French doors and window sills, and common reasons people get in touch are white mastic on grey or black frames and cold air getting in at the frame edge.
Homes around Broadwater range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or drop us an email.
- Place
- Broadwater (BN14, BN11)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Broadwater
More services for Broadwater
Broadwater homes and the weather
Broadwater is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Historic houses like Ecclesden Manor (about 4.2 miles west) are a reminder that the area around Broadwater 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.
In the older streets around St. Mary's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Broadwater CofE Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Broadwater is about 1 mile east of Worthing, in West Sussex. We carry out window mastic for householders, landlords and businesses in Broadwater and nearby. We cover 371 towns and villages across West Sussex. Our Brighton page covers work nearby (11 miles or so).
Every address in BN14 and BN11 is covered for window mastic. That includes homes and businesses on Forest Road, Turner Road and Langton Road and the roads around them. We also cover the places around Broadwater: Offington (1 mile north-west), Worthing (1 mile west), Salvington (1 mile north-west), East Worthing (1 mile south-east) and Sompting (2 miles east). Larger places within reach include Bognor Regis (14 miles west), Burgess Hill (14 miles north-east), Littlehampton (7 miles west), Shoreham-by-Sea (5 miles east), Rustington (6 miles west) and Storrington (7 miles north-west).
Near you in Broadwater
Around Broadwater, our work takes us to homes and buildings near Thomas A Becket First School, Bohunt School Worthing and Beach House Park, among other places. For rail, the closest station is Worthing station, roughly 0.7 miles south of the centre. Well-known places in the area include Museum of Sussex Folklore (0.9 miles west) and Old Castle (0.8 miles west). For a walk, there’s Widewater Lagoon and Steep Down.
Different surfaces, different methods
Composite doors
Draughts round the door leaf generally come from worn seals or adjustment, not the mastic. We’ll tell you if that is what we find.
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
Work for landlords, hotels and businesses
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.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Do you need window mastic in Broadwater?
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
These are the problems we are asked about most:
- White mastic on grey or black frames
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
If you let a flat or house near Worthing 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 cure time is
- How much experience the applicator has
- How the surfaces are prepared before sealing
- Which colour the sealant will be
Why it’s worth doing now in Broadwater
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Homes in smaller places like Broadwater can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why book with us
- Old sealant always removed completely
- Homes, businesses and hotels
- White, clear, grey or coloured to suit, where the product allows
- Colour agreed with you before we start
Read our cost guide or customer reviews.
How we quote for window mastic
You will get a clear quote before any work starts. It’s based on:
- Working hours on commercial sites
- Mould in or behind the old joints
- The product the joint needs
- The size of the job
Doing several joints on one visit generally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Asking for a quote
What to tell us when you ask for a quote:
- How many joints, rooms or windows are involved
- If someone has resealed it before
- The type of property
- What’s wrong with the joints now
Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Looking after it afterwards
Looking after new joints is easy:
- Avoid harsh chemicals near the mastic
- Clean frames with a soft cloth and soapy water
- Keep paint off silicone joints
- Keep drainage slots and sill grooves clear
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just call 0345 464 0079 or send us an email.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Questions from Broadwater
Do you work for landlords with property near Worthing station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Broadwater within the area you cover?
Yes, Broadwater is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What does window mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can you quote for more than one area?
Yes. Just list everything you need.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.