Greater London · England
Floor & skirting joints in Harold Hill, Greater London
Problem with your floor joints in Harold Hill? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Concrete floor joints that have broken down
- Open joints around bathroom floor edges
- Open gaps along the bottom of skirting boards
Floor joint sealing in Harold Hill
Across Harold Hill, we seal floor and skirting joints in homes and businesses. Each job starts with looking at the floor and the gap, since that decides which sealant suits. Typical jobs include cracked caulk along skirting in bathrooms and kitchens and floor edges that trap water and grime, on commercial floors, skirting boards and wet room & bathroom floors. As specialist sealant applicators, we cover Harold Hill for floor joint sealing and other sealant work.
Across London, commercial floors have movement joints that break down under heavy foot traffic, while new homes need a neat, sound finish around frames, baths and kitchens before handover, in Harold Hill and beyond.
All of our work is guaranteed for twelve months.
- Location
- Harold Hill (RM3)
- Wider area
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 07833 053749
- Page updated
- 26 October 2026

Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What affects the quote in Harold Hill
The price is agreed before any work begins. It takes into account:
- Whether old sealant or filler has to be cut out
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Access and height
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- The type of property
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
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. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.
No two jobs are quite the same, 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.
Why Harold Hill clients choose us
- Old sealant always removed completely
- We leave the area clean and tidy
- Sealant colour chosen to suit
- 4.9 on Google from 180+ five-star reviews
See what affects the cost and customer reviews.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Harold Hill questions
Can you do floor joint sealing in Harold Hill?
Yes, Harold Hill is within the area we cover. Our work covers London and the South East. You can call 07833 053749 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near Harold Wood station?
Yes. We work for letting agents and landlords as well as householders. Just ring 07833 053749 or email us with the address and what needs doing, and we’ll send you a clear quote.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in.
What do you need from me for a quote?
Tell us what needs doing and where, plus photos if you have them. If we need more, we’ll ask.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you offer different sealant colours?
Most of the time, yes. We will explain which colours are available.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Loose, hollow or cracked tiles, which need a tiler
- Movement too big for a sealant joint
- Bouncy or failing floorboards
If in doubt, call 07833 053749 or drop us an email and we will say what we think before you book.
What we seal
- Thresholds
- Wet room & bathroom floors
- Concrete floor joints
- Commercial floors
- Skirting boards
- Tiled floors
Do you need floor joint sealing in Harold Hill?
Grout is rigid, so a tiled floor with nowhere to move cracks along a grout line. You will see a crack running along the grout, showing where a movement joint was needed.
Most people get in touch after spotting one of these:
- Perimeter joints in tiled floors filled with grout
- Gaps at thresholds between rooms
- Open gaps along the bottom of skirting boards
- Dirt and water collecting in open floor joints
As a London address, Harold Hill can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Questions to ask before booking
- Whether all the old sealant comes out first
- Who turns up on the day
- Are they insured?
- What happens if the job turns out different
How it works
Most of a good job is in the preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours, depending on the length of joint. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Harold Hill. It helps if you can point us to a visitor permit or a bay close to the door.
- First, the floor type, the gap and the traffic are checked.
- Any old caulk, grout or sealant is raked or cut out.
- The joint is vacuumed clean and backing fitted where needed.
- We apply the sealant in a colour that suits the floor.
- The joint is tooled neatly and the cure time explained.
Getting ready for the visit
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
Get a quote
To get a quote, phone 07833 053749 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Related advice
Also near Harold Hill
Also in Harold Hill
What floor joint sealing looks like in Harold Hill
Across Greater London, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. That’s why the skirting and threshold joints need a flexible seal. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
Schools such as Drapers' Pyrgo Priory School are buildings too, and entrance and corridor floor joints take a lot of traffic. If you let a flat or house near Harold Wood station, gaps at skirtings and thresholds are worth sealing between tenancies.
Harold Hill is about 3 miles north-east of Romford, in Greater London. Jobs in Harold Hill get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 786 places, and Harold Hill is one of them.
Jobs for floor joint sealing in RM3 is quoted and booked the same way as anywhere else. Streets in the area include Oxford Road, Priory Road and Wigton Road. Neighbouring places we cover for floor joint sealing include Noak Hill (1 mile north), Harold Park (1 mile south-east), St Vincent's Hamlet (1 mile north), Brook Street (2 miles east) and South Weald (2 miles north-east). Larger places within reach include Shoreditch (15 miles south-west), Walthamstow (11 miles west), Hoxton (15 miles west), Whitechapel (14 miles south-west), Highbury (15 miles west) and Plaistow (11 miles south-west).
Local landmarks in Harold Hill
Typical jobs here are in homes near Dagnam Park, The Morris Dancer Public House and King's Wood School. For rail, the closest station is Harold Wood station, roughly 1.2 miles south of the centre. A little further out are The Mercury Mall (2.9 miles south-west) and Harold Wood Hospital (1.2 miles south). The countryside around Harold Hill includes Bedfords Park.
