Construction and new-build mastic in Graffham, West Sussex
Construction mastic in Graffham, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Frame perimeters left unsealed or poorly sealed
- Sealant knocked or painted over by other trades
- Snag items on joints that need redoing before handover
Construction mastic for businesses in Graffham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic for commercial buildings in Graffham
A typical mastic package covers more than window perimeters: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place, and one applicator team gives a consistent finish. If you have frame gaps too wide for sealant alone and sanitary sealant damaged by following trades, we can help, on brick and block movement joints, floor and skirting junctions and sanitary and kitchen joints alike. For commercial sealant work in Graffham, you deal with one contact from quote to sign-off, whether it’s one building or several.
Construction in and around smaller places such as Graffham is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
We sign every job off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.
- Where
- Graffham (GU28)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Building owners, agents and FMs in Graffham
CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along 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, plus a 12-month guarantee.
General trades versus a specialist
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Nearby places to Graffham
More services for Graffham
Facades, frames and programmes in Graffham
At about 46 miles from central London, Graffham is within reach of the capital. 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. Graffham sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team.
On a healthcare site such as Midhurst Community Hospital, 3.9 miles north-west of Graffham, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. For contractors at a school such as Graffham CofE Infant School, sealing has to be finished before term starts. With historic properties like Cowdray House, 3.5 miles to the north-west of Graffham, in the area, refurbishment work often meets old masonry that needs compatible sealants.
Graffham is about 9 miles north-east of Chichester, in West Sussex. We send applicators to Graffham for mastic packages. 373 places across West Sussex fall within our area, including Graffham. We also cover Portsmouth, around 20 miles from Graffham.
Anyone looking for construction mastic in GU28 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Guillods Cottages and St Giles Place and the roads nearby. Just outside Graffham, we also work in East Lavington (1 mile south-east), Duncton (2 miles east), Selham (2 miles north), South Ambersham (2 miles north) and Rotherbridge (3 miles north-east). Nearby towns on our patch include Worthing (15 miles south-east), Bognor Regis (11 miles south), Chichester (9 miles south-west), Selsey (15 miles south), Littlehampton (11 miles south-east) and Rustington (12 miles south-east).
Near you in Graffham
In Graffham, that means premises near The Woodman pub. Other landmarks nearby include Coultershaw Heritage Site (3.1 miles north-east) and Midhurst Community Hospital (3.9 miles north-west). Not far away are Levin Down and Graffham Common.
Your questions answered
Is hospital work, at somewhere like Midhurst Community Hospital, something you do?
Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Graffham 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. Where we can, we group nearby jobs to make the most of each trip.
Is colour matching possible?
Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.
Can you clear a mastic snag list before handover?
Yes. Snag-only work is something we take on.
Do you take on multi-site work?
Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.
Can you send site paperwork?
Each site asks for different documents, so tell us what you need and we’ll confirm it when we quote.
How do you work with the site programme?
We follow the trades through the building. Areas are sealed as they’re released by the site team, and we’ll raise anything that holds the work up.
How the job changes by surface
Internal decorators’ caulk
Where the specification calls for it, acrylic decorators’ caulk goes on non-moving internal gaps before painting. It’s for gaps that stay still and get painted while moving joints need a flexible sealant.
Bathrooms, en suites and washrooms
Across a block of flats or a hotel, sanitary sealing is repeated in every room. A single team keeps the standard consistent following the programme.
How the quote is worked out
These are the things that shape the price:
- Site requirements such as inductions and permits
- How accessible the joints are
- Specialist products, such as fire-rated or hygienic sealants
- The size and state of each joint
The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Details that help us quote
Diagnosis starts before we arrive. Let us know:
- Where the site is, with the postcode
- Anything awkward about access or site hours
- Specification clauses that apply
- What the building is and how it’s used
For a fixed quote, speak to us on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.
From enquiry to sign-off
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Rural sites near Graffham may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.
- First we take quantities off the drawings and read through the specification.
- You receive a fixed quote listing scope, products and phasing.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Every joint is prepared, set to depth and sealed with the specified product.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Getting the site ready
- Agree which areas must stay open
- For older buildings, check the asbestos register before work
- Warn occupants and staff about the work
Getting a fixed quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, give us a call on 01277 525 020 or send details through our quote form.
Related advice
Keeping the joints sound
For the best life from the joints:
- Brief following trades on areas that have been sealed
- Keep scrapers and abrasive pads off new beads
- Don’t force external sealing on a damp or frosty day
- Stick to the specified sealant rather than a generic substitute
Once an area is sealed, protect it from following trades. New beads should be left to cure before cleaning or decorating nearby; we confirm the time for each product.
Oversized gaps are a problem better caught early. Filling a wide gap with sealant alone sets up a failure so packing or adjustment by the installer comes first. We raise them during our first walk of the area.