The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Mastic contractors in Old Shoreham

Looking for construction mastic in Old Shoreham? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Existing joints on a refurb that need cutting out and resealing
  • External joints sealed in damp or cold conditions that are now failing
  • Sealant knocked or painted over by other trades
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Construction mastic for Old Shoreham sites

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Your questions answered

Is Old Shoreham off your patch?

No. Places such as Old Shoreham are covered as much as the big towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Do you cover business parks and estates near Old Shoreham, such as Dolphin Industrial Estate?

Yes, sites like Dolphin Industrial Estate are within our area, along with the rest of Old Shoreham. Send details of the unit and the work through our quote form for a quick quote.

What hours do you work?

Give us your site hours and any access windows in your enquiry, and we will schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Can fire-rated sealing at service penetrations be included?

Fire-rated sealant can be included where it’s specified, installed to the product’s tested detail. The design and sign-off belong to the designer, fire engineer or building control.

Can you come in just for snagging?

Yes. Damaged, missed or untidy joints are stripped and done again properly, working to your handover date.

Do your applicators hold CSCS cards?

Our applicators hold CSCS cards, and we’re CHAS accredited and a Constructionline member. Public liability insurance of five million pounds is in place too.

What guarantee comes with a mastic package?

The work is guaranteed for 12 months on the workmanship. Protecting sealed areas from following trades helps avoid damage.

Construction mastic for commercial buildings in Old Shoreham

Refurbishment work needs a slightly different approach from new build. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone, and on older buildings we ask for the asbestos survey before disturbing anything. New and existing joints then get the same preparation. Most enquiries involve oversized or tapered gaps around new frames and mastic snags holding up handover, across window and door perimeters, cladding and panel joints and brick and block movement joints. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Old Shoreham is the same: the right product in a properly prepared joint.

Around smaller places like Old Shoreham, building work usually means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Location
Old Shoreham (BN43)
Wider area
West Sussex
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Contractors’ notes for Old Shoreham

Old Shoreham sits close to the coast, within about 1 mile. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, and the sealant, primer and backing need choosing with that in mind. Old Shoreham is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, so the external programme keeps a little slack.

New wings at hospitals like Southlands Hospital, 1.4 miles to the east of Old Shoreham, bring long runs of window and panel joints to seal. For contractors at a school such as Swiss Gardens Primary School, sealing has to be finished before term starts.

Old Shoreham is about 1 mile west of Shoreham-by-Sea, in West Sussex. If you’re looking for construction mastic in Old Shoreham, we can help. Across West Sussex, 373 places are covered, Old Shoreham among them. There’s a separate page for Brighton, roughly 7 miles from Old Shoreham.

Anyone looking for construction mastic in BN43 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We also cover Shoreham-by-Sea (1 mile east), Adur (1 mile north), Kingston by Sea (2 miles east), Southwick (2 miles east) and Castle Town (3 miles north). Nearby towns on our patch include Worthing (5 miles west), Haywards Heath (14 miles north-east), Burgess Hill (11 miles north-east), Littlehampton (11 miles west), Rustington (10 miles west) and Storrington (9 miles north-west).

Around Old Shoreham

In Old Shoreham, that means premises near The Sir Robert Woodard Academy and The Amsterdam pub. For rail, the closest station is Shoreham-By-Sea station, roughly 0.7 miles east of the centre. Nearby you will also find Southlands Hospital (1.4 miles east) and Old Castle (4.6 miles west). Green spaces nearby include Lancing Ring and Adur Estuary RSPB Reserve.

Map of Old Shoreham © OpenStreetMap contributors

Why deal with it now?

A cheaper sealant can look like an easy saving on a large package. A failed joint in the defects period costs far more than the product difference, especially externally. Where an alternative is genuinely suitable, we will say so. For buildings around smaller places like Old Shoreham, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

A quote for mastic packages depends on quantities, condition and access, and any specification that applies. Call for a quote.

What you get with us

  • 12 months’ guarantee on every job
  • One number for every site we cover
  • Specification-led, product-correct work
  • Constructionline member for supplier checks

See what affects the cost and how we’re accredited.

When something else is needed

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
  • Joint design decisions that belong to the architect or engineer
  • Faulty frames rather than failed sealant

Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we will tell you honestly before you book.

What we seal

  • Brick and block movement joints
  • Floor and skirting junctions
  • Window and door perimeters
  • Internal decorators’ caulk
  • Cladding and panel joints
  • Sanitary and kitchen joints

Maintenance after handover

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Put any product change through the designer first
  • Allow flexibility for external sealing in damp or cold weather
  • Bring the mastic contractor in after the last trades are through
  • Note which sealant went where at handover

At handover, keep the product details with the O&M information. That helps the building owner maintain the joints later, and tells you what to reseal with. Tell us what records you need and we’ll confirm with the quote.

Sanitary joints that fail early become defects soon after occupation. Water gets behind trays, vanity tops and panels. Proper preparation, with the right silicone first time, keeps it off the defects list.

Diagnose, treat, sign off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme, and our waste is bagged and taken away as we go. Rural sites near Old Shoreham may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. Drawings, specification and programme come to us.
  2. We take off quantities and return a fixed quote.
  3. The sequence is agreed with the site manager.
  4. Plots or floors are sealed as they’re handed over.
  5. Joints are prepared, backed and sealed to the specification.
  6. After snagging, the work is handed over under our 12-month guarantee.

Before we start on site

  • Explain the parking and delivery arrangements
  • Flag any permit to work we’ll need
  • Make sure the joints can be reached

Ask for a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call 01277 525 020 or email us.

Ask for a quote

Related advice

Cost factors for mastic packages

These are the things that shape the price:

  • The size and state of each joint
  • The total length or number of joints
  • Whether the work must be split into stages
  • The product specified

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

What to include in your enquiry

To price the job accurately, we need to understand the site. Useful things to include:

  • Any dates the work must fit around
  • Any specification or named product
  • The asbestos register, for older buildings
  • A wide shot and a close-up of the area

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or send details through our quote form with what you know.

When to call us in Old Shoreham

A joint without backing rod or bond-breaker often fails early. Fixed to three faces, the sealant rips the first time the joint opens, so depth is controlled with backing rod or bond-breaker tape.

Common reasons buildings call us in:

  • Caulk cracking where joints are moving more than expected
  • Old sealant on a refurbishment that needs stripping before new work
  • Oversized or tapered gaps around new frames
  • A long mastic snag list close to completion

With historic properties like Portslade Manor, 3.1 miles east of Old Shoreham, in the area, refurbishment work often meets old masonry that needs compatible sealants.

What your quote should include

  • The terms of the workmanship guarantee
  • Who will actually carry out the work
  • Proof of insurance
  • What site paperwork they can supply

Choosing a commercial sealant contractor

Accreditations

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