West Sussex · England

New Build Mastic in Offington

New-build sealant joints in Offington need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Leaking shower tray seals in a new home
  • Gaps behind new kitchen upstands
  • Frame joints opening as the plaster dries

New build mastic near Offington

New build mastic in Offington

For builders and developers, we work through plots to the schedule you give us. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over using the right product for each joint. If you have untidy sealant flagged on a snagging list and skirting joints opening in the first winter, we can put it right.

For a small place like Offington, the journey and access are planned in advance, and the work itself is the same as on any site.

Big or small, it’s backed by our one-year guarantee.

Where
Offington (BN14, BN13)
Region
West Sussex
Guarantee
A year, on every job
Quote
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026
Fresh white silicone going into the corner where a shower screen meets the tiled wall

Signs you need new build mastic in Offington

Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and the sealant may split.

Common reasons people contact us are:

  • Gaps opening as the house dries out and settles
  • Second-fix sealing on new plots
  • Sealant applied over dusty or wet surfaces
  • Untidy sealant flagged on a snagging list

Around Offington, as everywhere, new build mastic is only as good as the preparation behind it.

What your quote should include

  • What happens if the job turns out different
  • Whether they seal over old material or remove it
  • Whether VAT is included
  • How the surfaces are prepared before sealing

Choosing a sealant specialist

What sealant work can’t fix

It helps to know what we can’t do:

  • Leaks from pipes, valves or wastes, which need a plumber
  • Movement caused by a poorly fitted tray or bath
  • Cracking that points to a structural problem

If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.

Joints and surfaces we work on

  • Show homes
  • Bathrooms & en suites
  • Windows & doors
  • Plot handovers
  • Skirting & floors
  • Kitchens

Landlords, agents and businesses in Offington

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

Common questions in Offington

Do you cover Offington for new build mastic?

Yes, Offington is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.

Do you work for landlords with property near West Worthing station?

Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.

How much does new build mastic cost in Offington?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.

Are you insured?

Yes. We are fully insured for domestic and commercial work.

Can you do plot mastic on a new development?

Yes. We seal plots to the developer’s programme. Tell us the plots and the joints involved and we will quote.

What do you need from me for a quote?

Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or send us an email.

Do you remove the old sealant?

Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Can I add another job to the visit?

Yes. Tell us about everything you’d like done and we’ll quote it together.

New build mastic in Offington: local notes

Offington is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you’ve bought a new home near West Worthing station, the sealant around baths, showers and frames is worth checking in the first year or two.

Offington is about 1 mile north-east of Worthing, in West Sussex. Offington gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 371 places across West Sussex, from the larger towns to small villages. There’s also a page for Brighton, about 11 miles away.

Here we cover the BN14 and BN13 postcode area for new build mastic. That includes homes and businesses on Rogate Road, Warren Road and Hall Avenue. Being close to the A24 and A27, Offington is simple for us to get to for new build mastic. Neighbouring places we cover for new build mastic include Salvington (1 mile west), Broadwater (1 mile south-east), Worthing (1 mile south-west), Findon Valley (1 mile north) and Sompting (2 miles east). Larger places within reach include Bognor Regis (13 miles west), Burgess Hill (14 miles north-east), Littlehampton (6 miles west), Shoreham-by-Sea (5 miles east), Lancing (3 miles east) and Rustington (5 miles west).

What’s near Offington

Locally, jobs take us to homes and businesses close to Thomas A Becket First School, The Thomas a Becket pub and Durrington Minature Railway. The closest station to Offington is West Worthing station, about 1.1 miles south of the centre. Nearby you will also find Old Castle (0.6 miles south) and Museum of Sussex Folklore (0.6 miles south). Not far away are Widewater Lagoon and Steep Down.

Map of Offington © OpenStreetMap contributors

Leave it or put it right?

If you’re still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Older cottages and farmhouses around Offington can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

What you pay reflects the work, not guesswork. That’s why we ask about the job first.

Why Offington customers choose us

  • Any old sealant cut out fully, not covered over
  • Full insurance on every job
  • Colour agreed with you before we start
  • Rated 4.9 stars on Google

See our cost guide or our reviews.

Can I do it myself?

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

What affects the quote in Offington

Every job gets its own quote. These are the things that affect it:

  • Any mould that needs treating
  • How many areas need sealing
  • How much old sealant there is and how hard it is to remove
  • The size of the job

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.

Asking for a quote

What to tell us when you ask for a quote:

  • Roughly how big the job is
  • If someone has resealed it before
  • If it’s domestic, commercial or a hotel
  • The address or postcode of the job

For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work.

How the visit works

Before we leave, we go over the finished joints with you. The visit itself usually takes anything from a few hours to several days, depending on the number of plots, depending on the size of the job. Somewhere as small as Offington, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First, the list of joints is agreed from your snagging sheet or plot schedule.
  2. Every bit of the old builder’s sealant is cut out down to clean surfaces.
  3. We clean out the dust and grit left from the build.
  4. We prime where needed and apply a sealant suited to each joint.
  5. We tool every joint neatly and tell you when each area can be used.

Before we arrive

  • Tell us about any water getting in
  • Plan for the work area to be out of bounds to pets and children
  • For indoor joints, keep the area dry beforehand if you can

Get a quote

We quote each job on its own. Just ring 0345 464 0079 or email us with the details.

Get a price

Related advice

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