West Sussex · England
Broadwater Sand Mastic
Professional sand mastic in and around Broadwater, with old sealant always removed completely and a one-year guarantee.
- Mastic that needs renewing before redecorating
- Draughty sash windows at the surround
- Open joints round the window box
Different surfaces, different methods
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Timber door frames
Round a period front door, sand mastic gives the right look.
How we handle sand mastic in Broadwater
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead and we’ll explain which is best for yours. If you are dealing with open joints round the window box and draughty sash windows at the surround, we can help.
In smaller places like Broadwater, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Big or small, you get the same one-year guarantee.
- Location
- Broadwater (BN14, BN11)
- Region
- West Sussex
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Windows and doors in Broadwater
Broadwater is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. London and the South East are among 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 Broadwater CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to St. Mary's Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. Letting a property close to Worthing station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Broadwater is about 1 mile east of Worthing, in West Sussex. If you need sand mastic in Broadwater, please ring 0345 464 0079 or email us for a quick quote. We cover West Sussex from our Crawley base. 371 places in West Sussex are on our list. We also work in Brighton, around 11 miles away.
Our applicators cover all of BN14 and BN11 for sand mastic. Local streets include Forest Road, Turner Road and Langton Road, and we cover them all. 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). Further out, we also cover 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).
Around Broadwater
Typical jobs here are in homes near Thomas A Becket First School, Bohunt School Worthing and Beach House Park and the streets around them. For rail, the closest station is Worthing station, roughly 0.7 miles south. A little further out are Museum of Sussex Folklore (0.9 miles west) and Old Castle (0.8 miles west). Open spaces near Broadwater include Widewater Lagoon and Steep Down.
When it isn’t the sealant
It helps to know what we cannot do:
- Damaged stone surrounds
- Sashes that rattle, stick or won’t open
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Ask us before painting near the mastic
- Check with your local planning authority if your home is listed
- Renew mastic before redecorating the windows
- Check the mastic when you check the paintwork
Leave the new mastic unpainted, which is the traditional advice. If you’re redecorating, ask us first.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
How the visit works
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours per window, depending on the condition of the joints, depending on how much there is to do. In a smaller place like Broadwater, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Ask for a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Read more
Nearby places to Broadwater
Other services in Broadwater
Landlords, agents and businesses in Broadwater
If you manage several properties in or around Broadwater, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Broadwater questions
Does the coastal weather in Broadwater affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Will you come out to Broadwater?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords and businesses?
Yes. We work for householders, landlords, letting agents, businesses and hotels.
Do you offer different sealant colours?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Broadwater, along with the rest of our area.
Can I add another job to the visit?
Yes. Just list everything you need.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
What affects the cost of sand mastic
Every job gets its own quote. These are the things that affect it:
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- How much there is to do
- Mould in or behind the old joints
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- The address or postcode of the job
- Photos by email, if that’s easy
- Any access issues, like height or stairs
- What’s wrong with the joints now
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.