West Sussex · England
Colwood Floor Joint Sealing
Our applicators work in Colwood on sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Open joints around bathroom floor edges
- Perimeter joints in tiled floors filled with grout
- Concrete floor joints that have broken down
What affects the quote in Colwood
You’ll get a clear quote before we start. It’s based on:
- Whether the work is at height
- Any mould that needs treating
- Any working-time requirements on site
- The old material and how stubborn it is
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and give you a clear price before we start.
What to tell us for a quote
To make quoting easier, please include:
- How many joints, rooms or windows are involved
- Where the property is
- What’s wrong with the joints now
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or send us an email.
How we handle floor joint sealing in Colwood
The gap under a skirting board often opens as floors and walls move with the seasons. Caulk tends to crack there, so we close it with a flexible sealant instead. If you are dealing with threshold joints that have opened or worn and caulk that has cracked where the floor moves, we can put it right, on thresholds, concrete floor joints and skirting boards alike.
In a village or hamlet like Colwood, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
You get a 12-month guarantee, the same in Colwood as everywhere else we work.
- Where
- Colwood (RH17)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Avoid sloshing water against skirting
- Act on grout cracks that run in a straight line
- Walk round the room once a year and look at the edges
- Cone off fresh joints until they’re ready
Keep off the joint for the time we give you. Light foot traffic is generally fine sooner than wet cleaning or wheels so we will give you each time.
Sealing a gap while it’s small is a quick job. Ignored, they fill with dirt and open further over time.
FAQs for Colwood
Can you do floor joint sealing in Colwood?
Yes, Colwood is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Do you cover smaller places like Colwood?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can sealant along the skirting be painted?
It depends on the sealant, so let us know first. Joints that will be painted get a paintable product.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can grout be replaced with sealant on a tiled floor?
In many cases, yes. Where a floor needs one, we rake out grout along the right line and replace it with flexible sealant coloured to suit. Loose or cracked tiles need a tiler first.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
What does floor joint sealing cost?
We do not publish prices, because the cost 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.
Where are you based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Honest limits
We will always be straight with you, so here’s what sealant can’t fix:
- Concrete repairs beyond the joint
- Leaks from a failed tanking system
- A tiled floor that needs relaying
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Colwood
- Wet room & bathroom floors
- Concrete floor joints
- Commercial floors
- Thresholds
- Tiled floors
- Skirting boards
Common problems we fix in Colwood
Wheels crossing an unfilled concrete joint chip its edges. Hard wheels damage the joint edges and the joint gets wider.
Any of these means the joints need attention:
- Threshold joints that have opened or worn
- Open joints that fill with dirt
- Gaps opening between the floor and skirting
- Cracked grout where a tiled floor needs a movement joint
Around Colwood, as everywhere, floor joint sealing is only as good as the preparation behind it.
Comparing quotes
- Are they insured?
- How long to leave it before use
- Which sealant they’ll use, and why
- The length of the guarantee
Places near Colwood
Also in Colwood
Why deal with it now?
Water that gets past a floor joint can damage the floor beneath. Sealing them now keeps the problem at the surface. Around Colwood, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Why choose Mr Mastic in Colwood
- 180+ five-star Google reviews
- A choice of colours where the product allows
- Anti-fungal silicone where joints get wet
- A sealant colour to suit the surroundings
See how sealant jobs are priced and our reviews.
What floor joint sealing looks like in Colwood
Floors around West Sussex run from suspended timber in older homes to concrete in newer houses and units, and they don’t all move the same way. The joint at the skirting or threshold has to allow for that.
Whether the job is in Colwood itself or nearby, the right material for each joint matters as much as a neat finish.
Colwood is about 5 miles north-west of Burgess Hill, in West Sussex. From the centre of Colwood to the outskirts, floor joint sealing is available for homes and businesses alike, from flats and houses to offices and hotels. Colwood is one of 371 places in West Sussex where we work. You can also see our page for Crawley, about 8 miles away.
Postcode districts we cover here for floor joint sealing: RH17. You will find streets such as Earwig Lane and Cross Colwood Lane, all of which we cover. Nearby, we also carry out floor joint sealing in Crabtree (1 mile north-west), Lower Beeding (2 miles north-west), Slaugham (3 miles north), Plummers Plain (3 miles north) and Monk's Gate (3 miles north-west). Further out, we also cover Crawley (8 miles north), Horsham (6 miles north-west), Worthing (15 miles south-west), Haywards Heath (6 miles east), Burgess Hill (5 miles south-east) and East Grinstead (13 miles north-east).
Around Colwood
Typical jobs here are in homes near Leonardslee and the streets around them. Other landmarks nearby include The Dene Hospital (3.8 miles south-east) and Cuckfield Museum (3.7 miles east). Open spaces near Colwood include Blunts Wood and Paiges Meadow.
What we do, step by step
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. Expect the work to take a few hours for most rooms, longer for large commercial floors. Somewhere like Colwood needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
Before we arrive
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
Ask for a quote
For floor joint sealing in Colwood, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
