West Sussex · England
Crabtree Floor Joint Sealing
Floor joints in Crabtree need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Dirt and water collecting in open floor joints
- Failed seals where bathroom floors meet baths and panels
- Perimeter joints in tiled floors filled with grout
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Vacuum floor joints regularly to stop grit building up
- Get cracks along tile grout lines looked at early
- Use furniture pads near skirting
- Don’t paint over silicone
Do not paint over silicone. If the joint will be painted, tell us beforehand so we use a paintable sealant.
Once concrete joint edges start to break, wheels make it worse. Sealing them early protects the edges.
How we handle floor joint sealing in Crabtree
Good floor joints come down to the right product and clean, prepared edges. We remove what’s there first, then clean, back and seal the joint. If you have gaps between floors and kitchen plinths and failed joint filler in concrete floors, we can help, whatever the surface.
Older homes in small places like Crabtree often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Your job is guaranteed for a year, as with all our work.
- Location
- Crabtree (RH13)
- Region
- West Sussex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Other services in Crabtree
Why it’s worth doing now in Crabtree
Water that gets past a floor joint can damage the floor beneath. Sealing them now keeps the problem at the surface. Where a wall is exposed, as many are in small places like Crabtree, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Crabtree
- Neat joints and a tidy finish
- Anti-fungal sanitary silicone in wet areas
- A choice of colours where the product allows
- We agree the colour with you first
Take a look at our cost guide and what customers say.
Crabtree questions
Do you cover smaller places like Crabtree?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Horsham station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Is the work guaranteed?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Why has a gap opened under my skirting?
Floors shrink and settle, especially in the first year or two and through the heating season pulls the skirting and floor apart. Rigid fillers split, so we use a flexible sealant.
What does floor joint sealing cost?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
How soon can the floor be mopped?
That varies with the sealant and the room. Before we leave, we tell you when it can be walked on, mopped and driven over so you can plan.
Surface by surface
Wet room and bathroom floors
Floor joints in bathrooms take water every day. They’re sealed with a flexible, anti-fungal silicone that keeps water out.
Commercial floors
In commercial buildings, we can plan floor joint work around opening hours. Out-of-hours working can be arranged.
Floor joint sealing around Crabtree
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. The joint at the skirting or threshold has to allow for that.
For buildings such as Old Church House the Glebe, floor and skirting joints in halls and kitchens wear like any others. Rented homes near Horsham station change hands often, and gaps at skirtings and thresholds are worth sealing between tenancies. Managing a site like Newells Preparatory School? Then floor and threshold joints in busy corridors wear quickly and are best resealed early.
Crabtree is about 5 miles south-east of Horsham, in West Sussex. Every kind of property in Crabtree can book us for floor joint sealing, old or new, large or small. The work is guaranteed for a year. Crabtree is one of 371 places in West Sussex where we work for floor joint sealing. You can also see our page for Crawley, about 7 miles away.
Our applicators cover all of RH13 for floor joint sealing and the streets around it. You will find streets such as Mill Lane, Peppersgate and Long Hill. We also cover the places around Crabtree: Lower Beeding (1 mile north), Colwood (1 mile south-east), Monk's Gate (2 miles north-west), Plummers Plain (2 miles north-east) and Mannings Heath (2 miles north-west). Within a short drive, we also cover Crawley (7 miles north-east), Horsham (5 miles north-west), Worthing (14 miles south-west), Haywards Heath (7 miles east), Burgess Hill (7 miles south-east) and East Grinstead (13 miles north-east).
Near you in Crabtree
Around Crabtree, our work takes us to homes and buildings near Leonardslee, among other places. The closest station to Crabtree is Horsham station, about 4.6 miles north-west. A little further out are Horsham Hospital (4.9 miles north-west). The countryside around Crabtree includes Knepp Wildland.
Landlord and commercial work in Crabtree
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Housing providers, facilities teams and property managers book us too in Crabtree and across West Sussex. Several sites can go on one quote, and we’re fully insured for the work.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a morning or an afternoon for most homes, and the area is left clean. Somewhere as small as Crabtree, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we check the joint and the floor and agree which sealant suits it.
- Whatever is in the joint now, whether caulk, grout or sealant, comes out.
- We clean and vacuum the joint and fit backing where the depth needs setting.
- A flexible sealant, or a floor-joint sealant for concrete, is applied in a colour to suit.
- We tool the joint neatly and tell you when it can be walked on and cleaned.
Before we arrive
- Clear items away from the joints we are working on
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
Advice
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Movement too big for a sealant joint
- Subfloor problems that need a flooring contractor
- Leaks from a failed tanking system
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
Where we work in Crabtree
- Skirting boards
- Commercial floors
- Tiled floors
- Concrete floor joints
- Wet room & bathroom floors
- Thresholds
How we quote for floor joint sealing
Your quote is based on your job. We look at:
- The type of sealant required
- Any working-time requirements on site
- The amount of work
- Mould in or behind the old joints
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- Roughly how big the job is
- The type of property
- A few photos by email, if you can
Every job is quoted individually. Simply call 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
