Hertfordshire · England
Remedial Sealant in Rickmansworth
Remedial sealant in Rickmansworth from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Black mould underneath the bead
- Caulk or the wrong sealant used in a wet area
- Sealant peeling off a dusty or damp surface
What we do, step by step
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a typical bath or shower, longer where several layers have been applied. Parking in a town like Rickmansworth is generally straightforward, but tell us if there’s a driveway or any restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
Get a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job.
Read more
Remedial sealant in Rickmansworth
Movement and expansion joints fail when the sealant can’t stretch. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. We work on failed movement joints, shrunken worktop sealant and expansion joints, and people most often call us about sealant that came away because the surface wasn’t prepared and gaps opening along the back of the worktop.
Plenty of homes in a town like Rickmansworth have had new bathrooms and kitchens over the years, some more than once. Sealant run over the top of an old bead is a common cause of leaks and mould, which is why all the old material has to come out first.
Big or small, you get the same one-year guarantee.
- Location
- Rickmansworth (WD3, WD18)
- Region
- Hertfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
To keep the joints looking good and working properly:
- Keep an eye on the ceiling below the bathroom
- Have loose fittings fixed before resealing
- Keep the room well ventilated
- Find out why the sealant failed first
If the joint ever needs renewing, have it cut out, not sealed over. Over-sealing is how many remedial jobs start, so the old bead should always come out first.
Leaks through failed sealant grow over time. Every shower or downpour sends more water through, into whatever is behind or below. Sorting it early limits the damage.
Bathrooms and kitchens in Rickmansworth
Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings.
If you live in an older home near Church of St Mary, timber floors under older bathrooms flex, so joints need a sealant that moves with them. If you let a flat or house near Rickmansworth station, botched sealant from a previous quick fix is easier to strip out between tenants. Schools such as Saint Joan of Arc Catholic School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes.
Rickmansworth is about 3 miles south-west of Watford, in Hertfordshire. We provide remedial sealant to homes and businesses in Rickmansworth and nearby. Rickmansworth is one of 381 places in Hertfordshire where we work. You can also see our page for London, roughly 19 miles from Rickmansworth.
Every address in WD3 and WD18 is covered for remedial sealant, from the main roads to the quietest streets. If you need remedial sealant at a property on High Street, Station Road and London Road or a nearby road, we can help. Rickmansworth is on the A404 and A412, so it’s easy for us to get to with everything needed for remedial sealant. Other places close to Rickmansworth include Batchworth (1 mile south), Chorleywood West (1 mile north-west), Croxley Green (1 mile north-east), Mill End (1 mile west) and Woodcock Hill (1 mile south). We also work in nearby towns such as Watford (3 miles north-east), Hemel Hempstead (8 miles north), St Albans (10 miles north-east), Harpenden (13 miles north), Hatfield (13 miles north-east) and Borehamwood (8 miles east).
Near you in Rickmansworth
In Rickmansworth, that means homes and buildings near Rickmansworth Park Junior Mixed and Infant School, Rickmansworth Park and The Coach And Horses Public House. Rickmansworth has its own railway station: Rickmansworth station. Nearby you will also find Chiltern Open Air Museum (3.2 miles west) and Charter Place (3.2 miles east). Green spaces nearby include Chorleywood Common and Tumbling Bay.
FAQs for Rickmansworth
Is remedial sealant in Rickmansworth guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Can you do remedial sealant in Rickmansworth?
Yes, Rickmansworth is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Can you remove old sealant without damaging the bath?
Yes, with care. The old bead is cut and lifted with tools that suit the surface, and the residue is cleaned away. We point out any damage that is already there.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Do you work for landlords and businesses?
Yes. We work for householders, landlords, letting agents, businesses and hotels across Hertfordshire.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
How we quote for remedial sealant
The price is agreed before any work begins. It takes into account:
- Any mould that needs treating
- The size of the job
- The type of sealant required
- The number of rooms or windows
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- How we’d reach the joints
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
What happens if it’s left?
Mould under a bead can’t be reached by cleaning. The layers have to come out. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and they’re far easier to fix early.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why us?
- A sealant colour to suit the surroundings
- Over 20 years’ experience
- White, clear, grey or coloured to suit, where the product allows
- Neat joints and a tidy finish
Read what affects the cost or what customers say.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Nearby places to Rickmansworth
Also in Rickmansworth
What the job involves on each surface
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so cleaning takes longer than in a bathroom.
Mouldy bath & shower sealant
Mould often spreads under the bead as well as through it. Once it’s all removed, the joint is treated.
What sealant work cannot fix
In fairness, some problems need a different trade:
- A tray or worktop that needs refixing first
- Older mastics that may need an asbestos check before removal
- A leaking trap, valve or supply pipe
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Expansion joints