The Haven construction mastic
Planning work on a mastic package in The Haven? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- External joints sealed in damp or cold conditions that are now failing
- Perimeter gaps outside the sealant’s range
- Mastic snags holding up handover
Construction mastic for The Haven sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
After the work
A few simple habits keep the new joints working:
- Brief the final clean team to avoid blades near sealant
- Flag uneven or tapered frame gaps early
- Protect sealed areas from following trades
- Release areas for mastic once other trades have finished in them
A new structure shifts as it loses construction moisture. Flexible sealants in the right joints handle normal movement. We can advise if a joint needs a different product.
Oversized gaps are a problem better caught early. Filling a wide gap with sealant alone sets up a failure. We flag them as soon as we see them.
About our construction mastic in The Haven
Refurbishment work needs a slightly different approach from new build. Old beads come out completely, as fresh silicone can’t grip old. New and existing joints then get the same preparation. If you have new external sealant already peeling away and perimeter gaps outside the sealant’s range, we can put it right, on window and door perimeters, floor and skirting junctions and brick and block movement joints alike. Most enquiries from The Haven start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
For a site near The Haven, the mastic visit is planned so the right sealants, primers and backing rod are on hand. Send drawings or photographs and the programme and we’ll quote to suit.
Every job we finish is backed by a 12-month workmanship guarantee, in The Haven as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Place
- The Haven (RH14)
- Wider area
- West Sussex
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Sites and facades in and around The Haven
Several hotels sit less than 2 miles from The Haven. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. The Haven is in the South East, one of the UK’s drier regions. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so the external programme keeps a little slack.
Extensions at sites like Horsham Hospital, 5.3 miles to the east of The Haven, typically sit beside working departments, and the mastic follows strict access rules.
The Haven is about 3 miles north of Billingshurst, in West Sussex. Anywhere in RH14, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Our West Sussex coverage takes in 373 places. There’s a separate page for Brighton, roughly 21 miles from The Haven.
Postcode districts covered here: RH14 for mastic packages. Close to The Haven, our area also takes in Five Oaks (1 mile south-east), Bucks Green (2 miles north), Slinfold (2 miles east), Rudgwick (2 miles north) and Tisman's Common (2 miles north-west). A short drive away, we cover Crawley (12 miles east), Horsham (5 miles east), Broadfield (11 miles east), Storrington (10 miles south), Billingshurst (3 miles south) and Bewbush (10 miles east).
Around The Haven
Recent enquiries here include premises near The Blue Ship Public House. The Haven’s nearest station is Billingshurst station, about 3.4 miles south of the centre. A little further out are Horsham Hospital (5.3 miles east) and Christs Hospital School Museum (3.9 miles east).
Your questions answered
Is hospital work, at somewhere like Horsham Hospital, something you do?
Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.
Is a smaller place like The Haven outside your area?
Not at all. The Haven is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.
Can you come in just for snagging?
Yes. Share the list and photographs, and a fixed quote follows, then clear it to your programme.
What joints do you seal on a new build?
Inside and out: frame perimeters, movement joints, caulk where called for, sanitary and kitchens in one fixed quote.
Do you use the sealant named in the specification?
The specified product is what goes in. Any suggested alternative is put to you before anything changes.
Who decides which product is used?
A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Are you insured?
Yes. We’re fully insured, including public liability cover.
Places near The Haven
What else we do in The Haven
Site staff or a sealant specialist?
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Diagnose, treat, sign off
Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Rural sites near The Haven may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We price from the drawings, specification and programme you send.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- We close out snagging and hand over with a 12-month guarantee.
Before we start on site
- Send any specification or drawings in advance
- Send asbestos survey details if the building is pre-2000
- Let building users know which areas are affected
Quotes
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Read more
Signs you need construction mastic in The Haven
Dust is the enemy of adhesion on a construction site. 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.
Site and facilities staff are often the first to spot these:
- A mastic package split between trades with no clear owner
- Frame gaps too wide for sealant alone
- Missed perimeter joints on a new elevation
- Bath and shower joints scraped during the final clean
When units on a site such as Spring Copse Business Park (to the east of The Haven) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Before you book anyone
- Whether their applicators hold CSCS cards
- Will RAMS and insurance details be available?
- How the existing material will be dealt with
- Which product they’ll use, and why it suits the joint
Quoting for work in The Haven
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- Whether old sealant has to be cut out first
- How accessible the joints are
- Joint width, depth and condition
- Phasing around occupants
There’s no price list, since every building and every scope is different. Call for a quote.
What we need to price the job
A good diagnosis starts with the right details. Tell us:
- When you need the work done
- Specification clauses that apply
- Where the site is, with the postcode
- What the building is and how it’s used
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
What we can’t put right
A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is any of the following:
- Joint design decisions that belong to the architect or engineer
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Rework caused by others damaging completed areas
If you are not sure, just ring 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.
Where we work in The Haven
- Cladding and panel joints
- Internal decorators’ caulk
- Floor and skirting junctions
- Sanitary and kitchen joints
- Window and door perimeters
- Brick and block movement joints