West Sussex · England
Floor & skirting joints in Runcton, West Sussex
Floor joint sealing for Runcton, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps between floors and kitchen plinths
- Gaps opening between the floor and skirting
- Rigid edge joints in tiled floors
How we handle floor joint sealing in Runcton
Floor joint sealing is mostly about choosing the right product and preparing the joint. We remove what’s there first, then clean, back and seal the joint. Typical jobs include failed joint filler in concrete floors and cracked caulk along skirting in bathrooms and kitchens, across thresholds, wet room & bathroom floors and skirting boards.
For a small place like Runcton, the journey and access are planned in advance, and the work itself is the same as on any site.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Runcton (PO20)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Different surfaces, different methods
Commercial floors
Commercial washrooms and kitchens have floor joints that get wet constantly. We reseal them with a sealant suited to wet areas.
Tiled floors
Perimeter joints in tiled floors should be sealant, not grout. Grout at the edge is removed and replaced with sealant.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Why act early in Runcton
Leaving skirting gaps until the next decorating job lets dirt and draughts in. Sealing them now is a short job for most homes. Where a wall is exposed, as many are in small places like Runcton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Runcton
- Colour agreed with you before any work starts
- We leave the area clean and tidy
- ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
Take a look at our cost guide or our reviews.
Runcton questions
Will you come out to Runcton?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Runcton in your area for floor joint sealing?
Yes, Runcton is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear price.
What causes gaps between the floor and skirting?
Timber floors and skirting shrink and swell through the year. We close it with a flexible sealant that moves with the floor.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Where do you work from?
Mr Mastic is based in Crawley. We cover Runcton and the rest of West Sussex, along with the rest of our area.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Can sealant along the skirting be painted?
Where the skirting will be painted, we can use a flexible sealant that takes paint. Silicone isn’t made to be painted, so it’s kept for wet areas and unpainted joints.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Walk round the room once a year and look at the edges
- Act on grout cracks that run in a straight line
- Do not fill floor joints with caulk where they move or get wet
- Keep dirt out of the joints
Silicone sealant isn’t made to take paint. If the joint will be painted, tell us beforehand so we use a paintable sealant.
Sealing a gap while it’s small is a quick job. Left alone, they collect dirt and widen and are harder to clean out.
How we quote for floor joint sealing
The quote reflects the job in front of us. We take into account:
- Any mould that needs treating
- Access and height
- Working hours on commercial sites
- The amount of work
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Asking for a quote
When you call or email, these details help:
- How we’d reach the joints
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- Where the job is, and your postcode
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or email us.
When it is not the sealant
We will always be straight with you, so here’s what new sealant will not do:
- Structural movement or subsidence
- Cracked or broken concrete slabs
- Leaks from a failed tanking system
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Concrete floor joints
- Commercial floors
- Tiled floors
- Skirting boards
- Thresholds
- Wet room & bathroom floors
Nearby places to Runcton
Also in Runcton
Joints and finishes in Runcton homes
Floors around West Sussex run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. That’s why the skirting and threshold joints need a flexible seal.
Letting a property close to Chichester station? Then gaps at skirtings and thresholds are worth sealing between tenancies. For site and facilities teams at buildings such as North Mundham Primary School, floor and threshold joints in busy corridors wear quickly and are best resealed early. If you look after a church, hall or community building such as The Parish Church of St Stephen, joints in its floors, skirtings and thresholds need resealing as they wear.
Runcton is about 2 miles south-east of Chichester, in West Sussex. Jobs in Runcton get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our West Sussex coverage runs to 371 places, and Runcton is one of them. There’s also a page for Portsmouth, about 14 miles away.
Jobs for floor joint sealing in PO20 is quoted and booked the same way as anywhere else. That includes homes and businesses on Goodwood Gardens, Brookside and Lagness Road and the roads around them. If you’re just outside Runcton, we cover North Mundham (1 mile west), Merston (1 mile north-east), Lagness (1 mile south-east), Hunston (1 mile west) and Portfield (2 miles north). Larger places within reach include Worthing (15 miles east), Bognor Regis (3 miles south-east), Selsey (6 miles south), Littlehampton (9 miles east), Emsworth (9 miles west) and Rustington (10 miles east).
Landmarks near Runcton
We work in homes and buildings around Chichester High School For Girls, among other places. For rail, the closest station is Chichester station, about 1.9 miles north-west. Other landmarks nearby include Chichester Castle (2.1 miles north-west) and The Chichester City Museum (2 miles north-west).
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a morning or an afternoon for most homes. For a village or hamlet like Runcton, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the gap and the floor type and agree the right sealant.
- Whatever is in the joint now, whether caulk, grout or sealant, comes out.
- The joint is cleaned, vacuumed and backed where depth needs controlling.
- A flexible sealant, or a floor-joint sealant for concrete, is applied in a colour to suit.
- The joint is tooled to a neat finish and we tell you when it can take feet and a mop.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
- Try not to wet indoor joints just before the visit
Ask for a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved.
