Mastic Sealing in Worthing
Mastic sealing for building owners, managing agents and housing associations in Worthing and across West Sussex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Window mastic that has split and shrunk
- The same joint failures repeated across a portfolio
- Damaged joints in communal entrances and corridors
Need mastic sealing in Worthing?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Looking after the joints
For the best life from the joints:
- Log resealing dates block by block
- Share your contractor requirements early
- Have the asbestos survey to hand for older buildings
- Start inspections with the most exposed faces
Protect entrance and corridor joints from knocks where possible. Damage at low level is the most common reason communal joints fail early.
Budgets are easier to plan when sealant is part of planned maintenance. A programme can start with the worst buildings so spending is spread.
Mastic sealing in Worthing, done properly
Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Every applicator holds a CSCS card, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Site teams most often ask us about failed external movement joints and the same joint failures repeated across a portfolio, on window and door perimeters on blocks, external wall and movement joints and shopfronts below residential blocks. Most enquiries from Worthing start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In a large town like Worthing, landlords and agents with a portfolio typically have mastic of similar age across many buildings. Grouping them under one programme and one quote keeps things simple.
Every job we finish is backed by a 12-month workmanship guarantee, in Worthing as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Worthing (BN13, BN11, BN14, BN12)
- Wider area
- West Sussex
- Guarantee
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Surface by surface
External movement joints
External movement joints take up expansion and contraction. Failed sealant in a movement joint lets water in.
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, so the grade we pick has to bond to frame and wall alike. Colours are confirmed for the product used.
Do you need mastic sealing in Worthing?
In communal areas, joints take knocks from bins, bikes, buggies and deliveries, and low-level joints get damaged. Regular cleaning wears them further.
It’s worth sending us details if you spot any of the following:
- Patchy repairs in mismatched sealant
- Repeated reactive repairs to the same buildings
- Water getting in round frames after rain
- Failed external movement joints
Older community buildings, St Andrew's Church among them, often have frames of mixed ages whose mastic varies.
What your quote should include
- Are they CHAS accredited or on Constructionline?
- Will failed sealant be removed rather than covered?
- Is the sealant right for the movement and the substrate?
- The terms of the workmanship guarantee
What sealant work can’t fix
Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:
- Broken glass or failed sealed units
- Materials that need asbestos testing before work
- Substrate edges that need repairing first
If you’re not sure, just speak to us on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.
What we seal
- Communal entrances and stairwells
- Balcony and threshold joints
- External wall and movement joints
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Shopfronts below residential blocks
How the quote is worked out
Each job is priced on its own details. The main factors are:
- Quantities, in metres or numbers
- Joint width, depth and condition
- How much existing material needs removing
- Travel to remote or island sites
Pricing mastic joints depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.
Sending details for a quote
There’s no need for a formal survey. A few details are enough to get going:
- Any dates the work must fit around
- Rough lengths or quantities, or drawings if you have them
- Photos of the joints, close up and from further back
- The product your specification calls for
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or ring 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.
Diagnose, treat, sign off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes a day or two for a single block, longer for an estate programme, and our waste is bagged and taken away as we go. Jobs in a large place like Worthing are often on business parks, retail sites or campuses with their own sign-in and permit rules. Send the site rules with your enquiry and we’ll plan to them.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Getting the site ready
- Arrange parking or a loading space
- Clear stock, furniture or equipment away from the joints
- For older buildings, check the asbestos register before work
Getting a fixed quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, phone 01277 525 020 or email us.
Read more
Block-wide mastic in Worthing
The sea is no more than about 2 miles from Worthing. On buildings near the shore, the side facing the weather typically needs its mastic renewed first, and they deserve more regular inspection. Worthing is in the South East, one of the UK’s drier regions. External mastic still waits for dry faces and the right temperature, and the sunniest, most exposed sides of a building normally need attention first.
Historic properties like Ecclesden Manor (3.1 miles west of Worthing) show the age of some local stock, where frame mastic must suit soft brick or stone. Buildings close to stations like West Worthing station (0.5 miles south-east of Worthing) are often flats over shops, with frame mastic to keep sound.
Worthing is in West Sussex. Across the BN13 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Worthing is one of 373 places we cover in West Sussex for mastic joints. Sites around Brighton have their own page, about 12 miles away.
Anyone looking for mastic sealing in BN13, BN11, BN14 and BN12 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Church Road, Market Place and High Street. With the A24 and A27 nearby, Worthing is straightforward for us to reach. If your building is just outside Worthing, we cover Salvington (1 mile north), Offington (1 mile north-east), Broadwater (1 mile east), Findon Valley (2 miles north) and East Worthing (2 miles east). Further afield, our area takes in Bognor Regis (13 miles west), Burgess Hill (15 miles north-east), Littlehampton (6 miles west), Shoreham-by-Sea (6 miles east), Lancing (3 miles east) and Rustington (5 miles west). Worthing is one of the busier places in West Sussex, and its commercial and public buildings are all within our area.
Landmarks near Worthing
Locally, jobs take us to sites close to The George And Dragon Public House, Durrington Minature Railway and Thomas A Becket First School, among other places. The closest station to Worthing is West Worthing station, roughly 0.5 miles south-east. Other landmarks nearby include The Acre (1.2 miles south-east) and Old Castle (under half a mile east). For a walk, there’s Highdown Hill and Widewater Lagoon.
Also near Worthing
Also in Worthing
Questions we are asked in Worthing
Does a coastal location like Worthing affect which sealant is used?
It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Does your area include sites such as Goring Business Park, near Worthing?
Yes, sites like Goring Business Park are within our area, along with the rest of Worthing. A few photos and the unit address let us price the work.
Do you work in Worthing?
Yes. We cover Worthing, and the simplest way to start is to call 01277 525 020 or use the quote form.
Do you do block-wide mastic programmes?
Yes. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.
Can you quote from photos?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit before quoting.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Who decides which product is used?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.