West Sussex · England
Floor Joint Sealing in Keymer
We cover Keymer for sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Chipped and open joints in warehouse floors
- Skirting caulk that keeps splitting
- Floor edges that trap water and grime
The process
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. Most jobs take a few hours, depending on the length of joint. A visit to Keymer is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by checking the floor, the joint and what traffic it takes.
- Any old caulk, grout or sealant is raked or cut out.
- We vacuum out the joint and add backing where the depth needs setting.
- We apply the sealant in a colour that suits the floor.
- We tool it neatly and tell you when it can be walked on and cleaned.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
Getting a quote
Every job is quoted individually. Simply call 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
Read more
Floor joint sealing in Keymer, done properly
Where skirting is painted, we can use a flexible sealant that takes paint. For bathrooms and kitchens, silicone is usually the better choice. If you have concrete floor joints that have broken down and threshold joints that have opened or worn, we can put it right, on thresholds, commercial floors and skirting boards alike.
For a new home in or near Keymer, it’s worth checking the sealant early. Common snags include open skirting joints, lifting shower seals and gaps around frames.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Keymer (BN6)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What floor joint sealing looks like in Keymer
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 is why the skirting and threshold joints need a flexible seal.
If you let a flat or house near Hassocks station, open skirting and floor joints collect dirt and water, so seal them while the property is empty. Community buildings like St Cosmas and St Damian Church are part of the picture too: floor and skirting joints in halls and kitchens wear like any others. If you look after a building such as The Windmills Junior School, entrance and corridor floor joints take a lot of traffic.
Keymer is about 2 miles south of Burgess Hill, in West Sussex. Keymer gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 371 places across West Sussex, large and small. We also work in Brighton, around 6 miles away.
Postcode districts we cover here for floor joint sealing: BN6. You’ll find streets such as Flowers Close, The Quadrant and Kymer Gardens, and we cover them all. Neighbouring places we cover for floor joint sealing include Hassocks (1 mile west), Ditchling (1 mile east), Clayton (1 mile south-west), Hurst Wickham (1 mile north-west) and Westmeston (2 miles south-east). Larger places within reach include Crawley (13 miles north), Horsham (13 miles north-west), Worthing (14 miles south-west), Haywards Heath (5 miles north), East Grinstead (15 miles north) and Shoreham-by-Sea (8 miles south-west).
Landmarks near Keymer
Around Keymer, our work takes us to homes and buildings near The Greyhound Public House and Downlands Community School and the streets around them. For rail, the closest station is Hassocks station, roughly 0.5 miles west. Other landmarks nearby include The Dene Hospital (3.2 miles north-west) and Clayton Castle (1.2 miles south-west). Green spaces nearby include Ditchling Beacon and Bedelands Farm Nature Reserve.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Nearby places to Keymer
What else we do in Keymer
Should I try it myself first?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Why it’s worth doing now in Keymer
Caulk is quick and cheap, but it cracks where the joint moves or gets wet, but the movement soon cracks it. A flexible sealant moves with the floor and keeps the joint sealed. In an older home around Keymer, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us and we will talk you through it.
Why choose Mr Mastic in Keymer
- Full insurance on every job
- A 12-month guarantee on all work
- Approved under the ARBOMaster scheme
- We agree the colour with you first
Read how sealant jobs are priced and customer reviews.
How we quote for floor joint sealing
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Which sealant suits the joint
- The number of rooms or windows
- How much there is to do
- Working hours on commercial sites
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Whether it’s a home or a business
- The address or postcode of the job
- Pictures of the joints, sent by email
- Roughly how big the job is
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Surface by surface
Concrete floor joints
We clean concrete joints out thoroughly before sealing, vacuuming them clean. We fit backing where needed.
Thresholds
Threshold joints get a lot of feet, so we choose a hard-wearing, flexible product and tool it flush.
What we can’t put right
In fairness, there are a few things sealant will not fix:
- Bouncy or failing floorboards
- Cracked or broken concrete slabs
- Large cracks that need a surveyor
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Thresholds
- Wet room & bathroom floors
- Tiled floors
- Skirting boards
- Concrete floor joints
- Commercial floors
Keymer questions
Will you come out to Keymer?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Hassocks station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
How do I get a quote for floor joint sealing in Keymer?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Is caulk good enough for skirting?
Because caulk cracks where there’s movement or water. Skirting joints move with the floor, so a flexible sealant suits them better.
Do you work on commercial floors?
Yes, including warehouses, units, shops and offices. We can plan around your opening times.
Do you seal floor joints in bathrooms and kitchens?
Yes. The old joint comes out and a flexible silicone replaces it in a colour to suit.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.