Hertfordshire · England
Remedial sealant & repairs in Startop's End, Hertfordshire
Our applicators work in Startop's End on removing failed, mouldy or leaking sealant and putting it right. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Decorators’ caulk around a bath or shower
- Sealant that came away because the surface wasn’t prepared
- Kitchen joints letting water behind the worktop
Remedial sealant for homes and businesses in Startop's End
Two decades of sealant work means we recognise most failures quickly. We are ARBOMaster approved and fully insured, and remedial work carries our one-year guarantee. Common call-outs are for torn expansion joints and worktop sealant that has shrunk and split, on leaking tray & enclosure joints, mouldy bath & shower sealant and expansion joints.
For a small place like Startop's End, remedial sealant is planned like any other job: it just means planning the journey and access beforehand. In the bathroom or kitchen, the work is the same as in any town.
Every job is covered by a one-year guarantee, wherever you are in Hertfordshire.
- Place
- Startop's End (HP23)
- Region
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Startop's End
We do not publish a price list, because jobs vary so much. What we look at:
- When we can work, for business premises
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Whether it has been sealed before
- Photos by email, if that’s easy
- The rough size of the job
- Access, such as stairs, a lift or height
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- A bath, tray or worktop that moves until it’s properly fixed
- Tiles that have come away from the wall
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Failed movement joints
- Expansion joints
- Shrunken worktop sealant
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Deal with small splits early
- Air the bathroom so the sealant can dry
- Ask why a joint failed before redoing it
- Check trays and worktops don’t move
Ventilation keeps mould away from the new bead: run the fan during and after showers, or open a window.
Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.
Startop's End: your questions answered
Can you help a landlord with a rental near Tring station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Do you cover smaller places like Startop's End?
Yes, Startop's End is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Does remedial work come with a guarantee?
Yes. You get our 12-month guarantee, and we are ARBOMaster approved.
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.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you.
Where is Mr Mastic based?
We are based in Crawley, and we work across South East England, London and Scotland.
How do I get a quote for remedial sealant in Startop's End?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
More services for Startop's End
Different surfaces, different methods
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. It’s cut out, degreased and resealed.
Mouldy bath & shower sealant
Mould can sit behind the silicone, not just in it. We treat the exposed joint once the bead is out.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes a few hours, depending on how many layers have to come out, depending on the amount of work. In a small place like Startop's End, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at how the sealant has failed and check for movement or a leak path.
- All the old sealant comes out, including any layers underneath.
- The joint is cleaned, treated for mould and left to dry.
- Moving joints get backing and a flexible sealant to suit.
- Finally we finish the joint and talk you through what we found.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
- Mention any parking rules near the property
Ask for a quote
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Advice
Leave it or put it right?
A failed seal rarely means a new bathroom. If the bath, tray and tiles are sound, remedial resealing normally puts it right. If they’re not, we will tell you. Around Startop's End, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why us?
- Homes, businesses and hotels
- 180+ five-star Google reviews
- Over 20 years’ experience
- Fully insured
Read what affects the cost and customer reviews.
Remedial sealant in Startop's End: local notes
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Rented homes near Tring station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Managing a site like Marsworth Church of England Infant School? Then washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes. If you live in an older home near Church of All Saints, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Startop's End is about 1 mile north of Tring, in Hertfordshire. Homes, rented property, offices and hotels in Startop's End is covered for remedial sealant. The work is guaranteed for a year. Our Hertfordshire coverage runs to 381 places, and Startop's End is one of them. There’s also a page for Oxford, about 25 miles away.
Work in HP23 works the same way as everywhere else we cover. We cover properties on Watery Lane, Lukes Lea and Marsworth Wharf. Other places close to Startop's End include Marsworth (1 mile north-east), Tringford (1 mile south), Wilstone (1 mile west), Bulbourne (1 mile east) and Gubblecote (1 mile north-west). Within a short drive, we also cover Hemel Hempstead (10 miles south-east), St Albans (15 miles east), Harpenden (14 miles east), Berkhamsted (6 miles south-east), Rickmansworth (15 miles south-east) and Chorleywood (14 miles south-east).
Near you in Startop's End
In Startop's End, that means homes and buildings near The Angler's Retreat pub and Tring School, among other places. The nearest railway station is Tring station, about 2.3 miles south-east. Well-known places in the area include Tindal Centre (5.8 miles west) and Pitstone Green Museum (1.5 miles north-east). The countryside around Startop's End includes College Lake nature reserve and Ivinghoe Beacon.