
Industrial and floor joint sealing in Merston, West Sussex
Floor joint sealing and filling in warehouses, factories and industrial units in Merston. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- A rough ride across broken joints
- Cracked and crumbling joint fill
- Joint fill separating from the concrete
Floor joint sealing for businesses in Merston
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Floor joint sealing in Merston
For sites in Merston and across West Sussex, the process is short: you send details, we send a fixed quote, the joints are done and the 12-month guarantee follows. A rough length of joint, photos of the worst areas and a site plan let us give a quick quote, or we can arrange a site visit. We work on loading bays, forklift and pallet-truck routes and retail and showroom floors, and the usual reasons a site gets in touch are failing joints at loading bays and dock doors and unfilled floor joints collecting dirt and grit. Looking for mastic applicators who cover Merston? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
For a site near Merston, measurements and photographs up front mean one trip where possible, with the right materials on hand. Tell us the joint widths if you can, and what drives or walks over them.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Place
- Merston (PO20)
- Wider area
- West Sussex
- Cover
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Maintenance after handover
Your facilities or cleaning team can help the joints last. Share these points with them:
- Sweep debris out of open joints until they can be filled
- Keep photographs of joints that look like they’re failing
- Allow for topping up joints as a new slab settles
- Hold traffic back until the product has cured
Dragged forks and pallets gouge joints and edges alike. Steel tines will mark a good joint over time.
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.
Floor joint sealing around Merston: what changes locally
Less than 3 miles from Merston there are at least three named estates and business parks. Their warehouses, yards and car parks are exactly where joints take the most punishment. Rainfall across the South East, Merston included, is lower than in many parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, and gritting in cold spells finds its way into open joints.
Another example is Quarry Lane Industrial Estate (1.4 miles north-west of Merston), where floors and yards would be done in stages around the occupiers. Office parks like Littlemeads Business Centre (1.4 miles north of Merston) have decks, ramps and clad elevations whose joints take movement every day. Hospitals like St Richard's Hospital, 2.3 miles north-west of Merston, have multi-storey or surface car parks whose joints carry vehicles round the clock.
Merston is about 3 miles south-east of Chichester, in West Sussex. Any commercial site in Merston is covered, whether it’s a single job or part of a planned programme. We work across 373 places in West Sussex, from busy centres to rural villages. For work in that direction, see our Portsmouth page.
If you need floor joint sealing in PO20, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your building is just outside Merston, we cover Runcton (1 mile south-west), Colworth (1 mile east), Oving (1 mile north), North Mundham (1 mile west) and Lagness (1 mile south). Bigger towns within reach include Worthing (15 miles east), Bognor Regis (3 miles south-east), Chichester (3 miles north-west), Selsey (6 miles south), Littlehampton (9 miles east) and Rustington (10 miles east).
Near you in Merston
Recent enquiries here include premises near Chichester High School For Girls and the streets around them. The nearest railway station is Chichester station, roughly 2.3 miles west of the centre. Other landmarks nearby include The Chichester City Museum (2.3 miles north-west) and St Richard's Hospital (2.3 miles north-west).
What sets the cost
These are the things that shape the price:
- Travel to remote or island sites
- Backing rod, priming and other preparation
- Which sealant the job calls for
- Removal of failed or old sealant
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Sending details for a quote
Diagnosis starts before we arrive. Tell us:
- The site address and postcode
- How the joints are reached, and at what height
- Any dates the work must fit around
- The type of building and who uses it
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
Towns and villages near Merston
More services for Merston
Commercial clients in Merston
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
Why act early in Merston
Every jolt over a broken joint passes into the truck, the load and the driver. Wheels and bearings wear faster and loads can shift, adding costs nobody plans for. A properly filled joint smooths the route. For buildings around smaller places like Merston, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why us?
- Work to your specification and the manufacturer’s guidance
- A fixed quote before work starts
- CHAS accredited contractor
- Fully insured, including public liability cover
See how commercial sealant jobs are priced or our accreditations and insurance.
On site: what to expect
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Smaller jobs around Merston can be grouped with others nearby. A fixed quote is given before anything starts.
- We walk the floor and mark up joint widths, edge damage and traffic routes.
- The treatment and the zones are set out in a fixed quote.
- 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.
Preparing the site
- Confirm the product named in the specification
- Point out parking and an unloading spot
- Flag any permit to work we’ll need
Request a quote
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.
Read more
Questions about Merston
Does your area include sites such as Littlemeads Business Centre, near Merston?
Yes, sites like Littlemeads Business Centre are within our area, along with the rest of Merston. To start, just ring 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
Do you take on work at healthcare sites like St Richard's Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
How many days will you need on site?
It depends on the scope, but the work usually takes between a day and a number of days, set by the joint lengths, the edge condition and the phasing you need. For bigger or phased jobs, we’ll set out a timescale with the quote.
How long before trucks can use the joints?
Cure times vary with the product and the conditions. You’ll get a reopening time for each area before we start.
Is it fine to apply new sealant on top of old?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Different surfaces, different methods
Semi-rigid joint fillers
A semi-rigid fill can separate along one side while a slab is still shrinking. A later top-up typically puts that right and we will flag it at quote stage.
Forklift and pallet-truck routes
Trucks running over open joints wear wheels and shake loads. A filled joint lets wheels roll across and protects the floor.