Construction Mastic in Cocking
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Cocking. Send photos or drawings for a fixed quote.
- Caulk cracking where joints are moving more than expected
- Failed sealant in an existing building being refurbished
- Missed perimeter joints on a new elevation
Construction mastic in Cocking
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle construction mastic in Cocking
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. After that, the joints are prepared and sealed to the specification. The enquiries we see most involve early adhesion failures on new external joints and frame gaps too wide for sealant alone, across internal decorators’ caulk, brick and block movement joints and floor and skirting junctions. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Cocking is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Conversions of older rural buildings near smaller places such as Cocking bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is typically what’s needed.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.
- Location
- Cocking (GU29)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Keeping the joints sound
Regular inspection catches problems early. Specifically:
- Don’t force external sealing on a damp or frosty day
- Share drawings and the specification as soon as possible
- Keep scrapers and abrasive pads off new beads
- Flag uneven or tapered frame gaps early
Tell the builders’ clean team which areas have new sealant. Scrapers used on frames and worktops can nick or lift a new bead.
Snag items left to the last week put handover at risk. A planned close-out through each area as it completes keeps the list short and keeps handover on track.
Questions we’re asked in Cocking
Is Cocking too far out for you?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.
Can you work on a hospital site such as Midhurst Community Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Can the building stay open while you work?
In the majority of cases, yes. Phased work can be planned so areas stay in use.
Will you stick to the specified products?
The specification decides the product and flag anything that doesn’t look right for the joint. Specifications often reference BS EN 15651 or BS 6213.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
Can you quote from photographs?
Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.
Can weather delay the job?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Common problems we fix in Cocking
On a live site, contamination is the biggest threat to a new joint. Dust, film adhesive, damp and grease on the joint faces prevent a proper bond so faces get cleaned, and primer goes on wherever the maker specifies, even on new work.
These are often picked up first by site or facilities staff:
- Cracks opening in caulked internal joints
- Early adhesion failures on new external joints
- Snag items on joints that need redoing before handover
- Window and door perimeters that won’t pass inspection
New units and refits on sites such as Holmbush Industrial Estate (to the north of Cocking) need their panel and perimeter joints sealed to the specification.
What to look for in a quote
- How the joint faces will be prepared and primed
- Which product they’ll use, and why it suits the joint
- How the existing material will be dealt with
- How joint depth will be controlled
Construction mastic around Cocking: points for this area
Cocking sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, which is why external dates are agreed with the site manager. Cocking is about 47 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, so mastic packages have to keep pace with busy programmes.
Historic houses such as Cowdray House, 2.6 miles to the north of Cocking, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products. Hotel extensions and refits, at places such as Park House Hotel, 1.2 miles north-west of Cocking, typically run between busy periods, so the sealing is squeezed into short windows.
Cocking is about 8 miles north of Chichester, in West Sussex. Any commercial site in Cocking is covered, whether it’s a single job or part of a planned programme. We work across 373 places in West Sussex, large and small. Our Portsmouth page has more on work in that area (17 miles or so).
If you need construction mastic in GU29, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. For a building on Bell Lane, The Croft and Cherry Close or nearby, send details and we will quote for mastic packages. Close to Cocking, our area also takes in Bepton (1 mile north-west), Heyshott Green (1 mile north-east), Cocking Causeway (1 mile north), Heyshott (1 mile east) and Bepton Common (2 miles north). Further afield, our area takes in Bognor Regis (12 miles south), Chichester (8 miles south), Selsey (15 miles south), Littlehampton (14 miles south-east), Rustington (14 miles south-east) and Storrington (13 miles east).
Near you in Cocking
A little further out are Midhurst Community Hospital (3 miles north) and Midhurst Museum (2.5 miles north). The countryside around Cocking includes Levin Down and Iping and Stedham Commons.
Leave it or put it right?
Patching snags as they appear can feel quicker than a proper close-out. A planned sweep of each plot or floor catches the lot in one go, and avoids repeated visits. Snagging can be priced as a separate stage. For buildings around smaller places like Cocking, 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.
What a job costs comes down to the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote once you have the details.
Why appoint us
- Colour agreed before work starts
- One phone line for London, the South East and Scotland
- A Constructionline member, so easy to vet
- Clear, fixed quotes
See how commercial sealant jobs are priced and how we’re accredited.
More services for Cocking
On site: what to expect
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For work around Cocking, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- First we take quantities off the drawings and read through the specification.
- A fixed quote sets out the scope, the products and the sequence.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- We seal each plot or floor as it’s released to us.
- Every joint is prepared, set to depth and sealed with the specified product.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
Before we start on site
- Share your working hours and any access restrictions
- Point out parking and an unloading spot
- Send any specification or drawings in advance
Getting a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, phone 01277 525 020 or email a schedule or drawings.
Advice
What sealant work can’t fix
Being straight saves everyone time. New sealant won’t cure:
- Faulty frames rather than failed sealant
- Frame gaps too wide for sealant, which the installer needs to correct
- Designing joint widths or choosing the specification (that sits with the designer)
If you are not sure, just phone 01277 525 020 or send details through our quote form and we will give you a straight answer.
Where we work in Cocking
- Brick and block movement joints
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Window and door perimeters
- Cladding and panel joints
- Floor and skirting junctions
How the job changes by surface
Window and door perimeters
Inside, a paintable sealant or decorators’ caulk is used where the joint doesn’t move much. The specification decides which with colours matched to the frame where needed.
Fire-rated sealant where specified
Not every penetration suits a sealant. Other products are used for some services and gaps. Record requirements are agreed with the quote.