Mastic sealing for building owners and managing agents in Southwick, West Sussex
Looking for mastic sealing in Southwick? It’s simple: send details, get a quote, we seal, guaranteed.
- Communal area joints that look neglected
- Window mastic that has split and shrunk
- No planned programme for sealant
Mastic sealing near Southwick
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Commercial clients in Southwick
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
Mastic sealing for commercial buildings in Southwick
Treatment starts with a proper look: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in, with backing rod setting the depth where it’s needed. If you’re dealing with a mix of products and colours from past repairs and cracked, hardened mastic round windows on a block, we can put it right, on shopfronts below residential blocks, balcony and threshold joints and external wall and movement joints alike. Most enquiries from Southwick 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.
For landlords and associations with stock in and around Southwick, grouping buildings into one visit saves travel. Send the addresses and photographs and we’ll quote for all of them together.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Where
- Southwick (BN42, BN41, BN43)
- Wider area
- West Sussex
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What the job involves on each surface
Tenement and older buildings
Stone needs a neutral-cure product and we choose accordingly.
Window and door perimeters on blocks
We normally work through a block’s windows in a planned order. Access is agreed with you before the quote is fixed.
Maintenance after handover
Your facilities or cleaning team can help the joints last. Share these points with them:
- Keep bins and bikes away from communal door frames
- Mention RAMS, insurance or CSCS requirements up front
- Look at the sunniest and most exposed elevations first
- Log resealing dates block by block
Ask residents or tenants to report draughts or leaks round windows early. A quick report keeps a small repair small.
The longer failed joints are left, the more likely the substrate edges break up. Then the edges may need repairing first and the job grows.
Why act early in Southwick
Dealing with failed joints one report at a time is slow and scattered. A planned programme treats each building once and is simpler to manage and budget. Small buildings around Southwick suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Why clients in Southwick choose us
- Matching to RAL references, product permitting
- One number for every site we cover
- Colours confirmed for the specified product
- A Constructionline member, so easy to vet
Read how commercial sealant jobs are priced and our accreditations and insurance.
For owners and agents in Southwick
Southwick lies within about 1 mile of the sea. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do. Southwick is about 46 miles from central London. Within reach of London, blocks run by agents and associations are common around stations.
If you own or manage units on a site such as Grange Industrial Estate, 0.5 miles to the south-west of Southwick, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. For a school such as Eastbrook Primary Academy, perimeter mastic on windows and doors is a holiday job. Historic properties like Portslade Manor, 0.8 miles to the north-east of Southwick, show the age of some local stock, where frame mastic must suit soft brick or stone.
Southwick is about 2 miles east of Shoreham-by-Sea, in West Sussex. We cover Southwick, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Southwick is one of 373 places we cover in West Sussex.
Commercial sites across BN42, BN41 and BN43 are covered for mastic joints. Among the streets we cover are Station Road, Roman Crescent and Southwick Street. Southwick sits on or close to the A259 and A270. If your building is just outside Southwick, we cover Kingston by Sea (1 mile north-west), Portslade (1 mile north-east), Shoreham-by-Sea (2 miles west), Hangleton (2 miles north-east) and Old Shoreham (2 miles west). Further afield, our area takes in Worthing (7 miles west), Haywards Heath (13 miles north-east), Burgess Hill (10 miles north-east), Littlehampton (13 miles west), Lancing (4 miles west) and Rustington (12 miles west).
Landmarks near Southwick
In Southwick, that means premises near Shoreham Academy, Benfield Hill and The Ship Inn. There’s a railway station in Southwick itself: Southwick station. Well-known places in the area include Southlands Hospital (1 mile west) and Churchill Square (4 miles east). For a walk, there’s Shoreham Beach and Thundersbarrow Hill.
On site: what to expect
Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. What matters most for a job in Southwick is a clear list of what needs doing, so send photographs of each area. A fixed quote follows.
- First we look at the mastic on each building and note what needs replacing.
- You get a fixed quote, priced per building where that helps your budgeting.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Tell us what induction or permit system the site runs
- Let building users know which areas are affected
- Agree which areas must stay open
Get a fixed quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or send details through our quote form.
Advice
FAQs: Southwick
Will you take on a block within reach of Southwick station?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Does a coastal location like Southwick affect which sealant is used?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
What paperwork can you provide?
Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Can you take on resealing for a block portfolio?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order with dates agreed in advance.
Does weather matter for sealant work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Can you reseal a whole block or estate?
Yes. We survey and price each building, then work through them in order, and the programme can start with the worst.
How do you handle work on occupied blocks?
We plan around people living or working in the building. Dates and areas are agreed with you so residents or tenants can be told, and entrances stay in use.
What we can’t put right
Not every problem is a sealant problem, and we are upfront when that’s the case. These need a different solution:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Broken glass or failed sealed units
- Frames that are rotten, warped or broken
If in doubt, call 01277 525 020 or email us and we’ll say what we think before you book.
Where we work in Southwick
- Communal entrances and stairwells
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Communal kitchens and washrooms