
Floor Joint Sealing contractors in Graffham
Floor joint sealing and filling in warehouses, factories and industrial units in Graffham. CHAS accredited and fully insured, with a 12-month guarantee.
- Untidy open joints in a retail unit
- Unfilled floor joints collecting dirt and grit
- Broken arrises where pallet trucks cross
Floor joint sealing near Graffham
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Floor joint sealing for commercial buildings in Graffham
Mastic Doctor has worked on joints in commercial buildings for over 20 years. Our CSCS-carded applicators follow your site induction and rules, and the business is CHAS accredited and a Constructionline member holding public liability insurance. Finished floor joints in Graffham carry our 12-month guarantee. We work on saw-cut induced joints, loading bays and construction joints, and the failures we are asked to look at most are sealant pulled out along a truck route and unfilled floor joints collecting dirt and grit. A specialist sealant contractor works differently from a general builder: on jobs in Graffham, preparation and product choice get the time they need.
In and around smaller places like Graffham, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Joints in those slabs take vehicles, trolleys and foot traffic, and need a filler or sealant to match.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

- Place
- Graffham (GU28)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Slabs, ramps and loading bays in Graffham
At about 46 miles from central London, Graffham is within reach of the capital. The South East has large numbers of industrial estates and warehouses along the motorway corridors; their floors carry heavy traffic every shift. Rainfall across the South East, Graffham included, is lower than in many parts of the UK. External slab and deck joints still need a dry, clean joint to seal, and gritting in cold spells finds its way into open joints.
A healthcare site such as Midhurst Community Hospital, 3.9 miles to the north-west of Graffham, depends on car parks, ramps and service yards whose joints take traffic all day. In a school such as Graffham CofE Infant School, movement joints in brick, block and hall floors tend to be forgotten until they leak.
Graffham is about 9 miles north-east of Chichester, in West Sussex. Any commercial site in Graffham is covered, whether it’s a single job or part of a planned programme. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. Sites around Portsmouth have their own page, roughly 20 miles from Graffham.
We take on floor joints across the GU28 postcode area, for business premises of every kind. Streets here include Guillods Cottages and St Giles Place. Sites close to Graffham are covered too, including 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). A short drive away, we cover 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).
Local landmarks in Graffham
Locally, jobs take us to sites close to The Woodman pub. A little further out are Coultershaw Heritage Site (3.1 miles north-east) and Midhurst Community Hospital (3.9 miles north-west). The countryside around Graffham includes Levin Down and Graffham Common.
How the quote is worked out
We price every job individually. The main factors are:
- Backing rod, priming and other preparation
- Specialist products, such as fire-rated or hygienic sealants
- Location, for remote and island sites
- Whether the work must be split into stages
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
Before you send an enquiry
However big the job, the same details help:
- The site address and postcode
- Whether an asbestos survey exists
- Approximate linear metres or a joint schedule
- The type of building and who uses it
For a fixed quote, speak to us on 01277 525 020 or send photos by email. You can also send details through our quote form.
When something else is needed
Honesty saves time and money. New sealant won’t cure:
- Structural cracking in the slab
- Damaged or worn floor coatings and screeds
- A floor that is out of level for the racking or trucks
Not sure which it is? You can speak to us on 01277 525 020 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Saw-cut induced joints
- Forklift and pallet-truck routes
- Retail and showroom floors
- Joints along racking aisles
- Construction joints
- Loading bays
Places near Graffham
Also in Graffham
Keeping the joints sound
Keep the joints in good shape with a few simple steps:
- Stop forks and pallets being dragged across joints
- Allow for topping up joints as a new slab settles
- Start with the dock areas, where joints fail soonest
- Keep photographs of joints that look like they’re failing
Dragged forks and pallets gouge joints and edges alike. Steel tines will mark a good joint over time if it keeps happening.
Joints are easiest to look after when someone checks them regularly. We can quote a programme that starts with the busiest areas and keeps on top of the rest.
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Your questions answered
Will our site in Graffham have to close for joint sealing?
In the majority of cases the site keeps working. Joints are done in phases, a bay, aisle or deck at a time. The phasing plan comes with the quote.
Can you work on a hospital site such as Midhurst Community Hospital?
Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.
What happens if old sealant might contain asbestos?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
What do you need from us to quote?
A rough joint length, a few photos and a site plan are normally enough for a quick quote. For larger floors, a site visit is often best, and you can call 01277 525 020 or email us to arrange it.
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.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Site staff or a sealant specialist?
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
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 where general trades tend to cut corners.
How a job runs
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. Rural sites near Graffham may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.
- We walk the floor and mark up joint widths, edge damage and traffic routes.
- You receive a fixed quote showing products and phasing.
- Old fill and packed debris come out until both faces are sound.
- We extract the dust and prime the faces if the product needs it.
- Filler or sealant is placed to depth and finished flush.
- We hand each phase back when it can take traffic.
What we need from you
- Tell us which areas need to stay in use
- Let us know about inductions and permits
- Share the asbestos register for older buildings
Quotes
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or use the quote form.