West Sussex · England
Floor Joint Sealing in Portslade
We cover Portslade for sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Tiled floors with no room to move
- Floor edges that trap water and grime
- Caulk that has cracked where the floor moves
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself usually takes a few hours, depending on the length of joint, depending on the size of the job. A visit to Portslade 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.
- First we check the joint and the floor and agree which sealant suits it.
- We take out any old caulk, sealant or grout along the line.
- We clean and vacuum the joint and fit backing where the depth needs setting.
- The sealant goes in, chosen for the floor and coloured to suit it.
- The joint is tooled to a neat finish and we tell you when it can take feet and a mop.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
- Move anything stored near the joints
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Advice
Floor joint sealing in Portslade
Concrete floors in warehouses and units have joints that take heavy wear. We reseal them with a product chosen for the movement and the traffic. We work on commercial floors, concrete floor joints and thresholds, and people most often call us about gaps at thresholds between rooms and tiled floors with no room to move.
In smaller places like Portslade, new homes tend to come as small developments or single plots. Each still needs its sealant and floor joints finished properly from day one.
Your job is guaranteed for a year, as with all our work.
- Place
- Portslade (BN41, BN3, BN42)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, 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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Questions from Portslade
Can you help a landlord with a rental near Fishersgate station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Will you come out to Portslade?
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.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Do you guarantee your work?
Yes. Each job is guaranteed for twelve months, wherever you are.
Can I choose the sealant colour?
Usually, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before work begins.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Do you seal floor joints in bathrooms and kitchens?
Yes. Floor edges in bathrooms and kitchens get wet at every clean, so we seal them with silicone suited to wet areas.
Landlord and commercial work in Portslade
We work for letting agents and landlords as well as homeowners. Sealant work between tenants keeps a property looking cared for.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Why it’s worth doing now in Portslade
Putting new grout into a crack that keeps reappearing does not last. If the floor needs to move there, the grout will crack again. A flexible movement joint is the fix. In an older home around Portslade, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
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.
Why choose Mr Mastic in Portslade
- You choose the colour before work begins
- Sanitary silicone with an anti-fungal additive in wet areas
- We’re fully insured
- Domestic, commercial and hotel work
See our cost guide or what customers say.
Floor joint sealing in Portslade: local notes
Floors around West Sussex run from suspended timber in older homes to concrete in newer houses and units, and they do not all move the same way. That’s why the skirting and threshold joints need a flexible seal.
For landlords with property near Fishersgate station, open skirting and floor joints collect dirt and water, so seal them while the property is empty. If you look after a building such as Peter Gladwin Primary School, floor and threshold joints in busy corridors wear quickly and are best resealed early.
Portslade is about 1 mile west of Brighton and Hove, in West Sussex. If you need floor joint sealing in Portslade, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover West Sussex, Portslade included. Portslade is one of 371 places in West Sussex where we work.
Postcode districts we cover here for floor joint sealing: BN41, BN3 and BN42. If you need floor joint sealing at a property on Mill Lane, Crown Road and Drove Road or anywhere close by, we can help. Portslade is on the A293, so it’s easy for us to get to with everything needed for floor joint sealing. Nearby, we also carry out floor joint sealing in Hangleton (1 mile north-east), Southwick (1 mile south-west), Kingston by Sea (1 mile west), Shoreham-by-Sea (2 miles west) and Old Shoreham (3 miles west). Larger places within reach include Worthing (8 miles west), Haywards Heath (12 miles north-east), Burgess Hill (9 miles north-east), Littlehampton (14 miles west), Lancing (5 miles west) and Rustington (13 miles west).
What’s near Portslade
Around Portslade, our work takes us to homes and buildings near King's School, Benfield Hill and The Mill House and the streets around them. For rail, the closest station is Fishersgate station, about 0.7 miles south. Other landmarks nearby include British Engineerium (1.8 miles east) and Southlands Hospital (1.8 miles west). For a walk, there’s Shoreham Beach and Thundersbarrow Hill.
Do you need floor joint sealing in Portslade?
A new floor or screed shrinks and settles as it dries. The edges pull away from the skirting and anything rigid cracks.
The problems people usually mention when they call include:
- Floor edges that trap water and grime
- Gaps between floors and kitchen plinths
- Failed joint filler in concrete floors
- Rigid edge joints in tiled floors
For buildings such as St Nicolas Church, floor and skirting joints in halls and kitchens wear like any others.
What your quote should include
- What the quote includes, VAT included or not
- What product goes in the joint
- When the joint can take water or movement
- How much experience the applicator has
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 to keep water out of the edges.
Tiled floors
Perimeter joints in tiled floors should be sealant, not grout. We rake out any grout there and reseal.
What affects the cost of floor joint sealing
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Whether the work is at height
- Mould in or behind the old joints
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Helping us quote
To help us quote quickly, let us know:
- Where the property is
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
If you are in Portslade and need floor joint sealing, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.