West Sussex · England

Rustington Window Mastic

Professional window mastic in and around Rustington, with every bit of old sealant taken out first and a 12-month guarantee.

  • Old mastic that has gone black or come away
  • Untidy mastic left by window fitters
  • Draughts coming in around windows and doors

Window mastic in Rustington

Window mastic in Rustington, done properly

Homes in Rustington have every kind of window: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. Common call-outs are for white mastic on grey or black frames and mastic that has split away from the wall, on patio & French doors, composite doors and window sills.

Around Rustington, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.

All our work comes with a 12-month guarantee.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Rustington (BN16, BN17)
Wider area
West Sussex
Cover
One year on every job
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

When to call us in Rustington

Sun, frost and rain wear sealant out. Sunlight dries the surface out, until it loses its stretch and starts to crack.

People generally contact us after spotting something like this:

  • Sealant in the wrong colour for the frame
  • Gaps where the sill meets the wall
  • Cracked internal joints between frame and plaster
  • Old mastic that has gone black or come away

Managing a site like Rustington Community Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.

What to look for in a quote

  • How the surfaces are prepared before sealing
  • What guarantee comes with the work
  • How hidden problems are handled
  • What insurance they hold

10 questions to ask before booking

What window mastic looks like in Rustington

Rustington is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces 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.

Letting a property close to Angmering station? Then renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around The Parish Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Rustington is about 5 miles west of Worthing, in West Sussex. Anywhere in BN16, we cover window mastic for homes and businesses. We cover 371 towns and villages across West Sussex, large and small. Brighton is on our list too, about 17 miles from Rustington.

All of BN16 and BN17 is covered for window mastic, from the main roads to the quietest streets. Local streets include Church Road, The Street and Station Road. You will find Rustington on the B2140, which makes it straightforward to reach with everything needed for window mastic. If you’re just outside Rustington, we cover Littlehampton (1 mile west), Toddington (1 mile north-west), Poling (2 miles north), Wick (2 miles west) and Lyminster (2 miles north-west). We also work in nearby towns such as Worthing (5 miles east), Bognor Regis (8 miles west), Chichester (12 miles west), Selsey (13 miles south-west), Shoreham-by-Sea (11 miles east) and Lancing (8 miles east).

Near you in Rustington

In Rustington, that means homes and buildings near The Littlehampton Academy, Littlehampton College and Mewsbrook Park, among other places. Rustington’s nearest station is Angmering station, about 0.9 miles east. A little further out are Zachary Merton Hospital (under half a mile south-east) and Lyminster Siege Castle (3 miles north-west). The countryside around Rustington includes WWT Arundel and Highdown Hill.

Map of Rustington © OpenStreetMap contributors

What happens if it’s left?

Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. In an older home around Rustington, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.

Why choose Mr Mastic in Rustington

  • We never seal over old sealant
  • 12-month guarantee on every job
  • White, clear, grey or another colour, product permitting
  • Full insurance on every job

Read what affects the cost or what customers say.

Surface by surface

uPVC windows

Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.

Patio & French doors

Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so they get particular care.

When something else is needed

We will not take on work that won’t last, so these are the limits:

  • A failed sealed unit that has misted up
  • Broken hinges, locks or handles
  • Draughts through the window seals rather than the frame

If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before booking.

Surfaces we seal

  • Patio & French doors
  • Composite doors
  • Timber windows & doors
  • Aluminium frames
  • uPVC windows
  • Window sills

How the visit works

At the end, we look at the finished work together. The visit itself usually takes a few hours for a handful of frames, longer for a whole house, depending on the size of the job. A visit to Rustington is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  1. First, we confirm safe access to each frame.
  2. All the failed sealant is cut away, along with any loose debris.
  3. Frame and wall are cleaned and must be dry before sealing.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. The joint is shaped to shed water and the area tidied.

How to prepare

  • Let us know about earlier repairs to the joints
  • Mention any leaks or damp you’ve noticed
  • Keep pets and children clear of the area while we work

Getting a quote

Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and send you a clear quote before we start.

Get a price

Advice

Common questions in Rustington

Will you come out to Rustington?

Yes. Rustington is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Is window mastic in a coastal place like Rustington any different?

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.

Do you work for landlords and businesses?

Yes, regularly. We can quote for several properties at once.

Is the new sealant paintable?

Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.

Can new sealant go over the old?

No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

Does the work come with a guarantee?

Yes. Every job comes with our 12-month guarantee, and we’re fully insured.

How do I get a quote for window mastic in Rustington?

Size, access and the old material all affect the cost. Ask us for a quote.

Is it worth trying it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.

Looking after it afterwards

Joint life depends on how it’s used and looked after. We suggest:

  • Repaint timber before it’s bare
  • Clear any debris from frame drain holes
  • Clean frames with a soft cloth and soapy water
  • Wipe condensation off the frames

Most silicone sealants will not take paint, so if you’re planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.

Leaks generally 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.

Landlord and commercial work in Rustington

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

We also work for property managers and facilities teams in Rustington and across West Sussex. We can quote a run of properties together, and we are fully insured.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job