Hertfordshire · England
Great Amwell Remedial Sealant
Failed sealant joints in Great Amwell need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Repeat leaks from the same joint
- Sealant peeling off a dusty or damp surface
- Sealant applied over old sealant that has lifted
What remedial sealant looks like in Great Amwell
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Letting a property close to St Margarets (Herts) station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Managing a site like Presdales School? Then we reseal washrooms and kitchens in schools and businesses as well as homes. For an older house near a landmark such as Parish Church of St John the Baptist, walls and floors in older homes can move, and sealant and grout show it first.
Great Amwell is about 1 mile south-east of Ware, in Hertfordshire. We provide remedial sealant to householders, landlords and businesses in Great Amwell and nearby. Our Hertfordshire coverage runs to 381 places, Great Amwell among them. There’s also a page for London, roughly 21 miles from Great Amwell.
We work across the SG12 postcode area for remedial sealant. Streets in the area include Church Path, Amwell Hill and Madgeways Lane, all of which we cover. Neighbouring places we cover for remedial sealant include St Margarets (1 mile south-east), Hailey (1 mile south), Little Amwell (1 mile south-west), Rush Green (1 mile west) and Stanstead Abbotts (1 mile south-east). Within a short drive, we also cover Stevenage (11 miles north-west), St Albans (14 miles west), Bishop's Stortford (9 miles north-east), Welwyn Garden City (8 miles west), Harpenden (14 miles west) and Hitchin (15 miles north-west).
Landmarks near Great Amwell
We work in homes and buildings around Hertford Regional College and Jolly Fisherman Public House and the streets around them. Great Amwell’s nearest station is St Margarets (Herts) station, about 0.9 miles south-east of the centre. Nearby you’ll also find Museum of Street Lighting (under half a mile north) and Barrowfield (1.4 miles west). Not far away are Amwell Quarry.
How we handle remedial sealant in Great Amwell
Not every leak is a sealant leak. A cracked tray, a failed shower valve or a leaking waste can look just the same. If that is what we find, we’ll tell you rather than reseal something that won’t fix it. If you’re dealing with dark patches showing through the sealant and smears and lumps from a botched reseal, we can put it right, whatever the surface.
In a village or hamlet like Great Amwell, homes are often older cottages and farmhouses alongside a few newer houses. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
Every job comes with our one-year guarantee.
- Where
- Great Amwell (SG12)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Quotes for remedial sealant in Great Amwell
We quote each job individually. These are the things that affect it:
- How easy the joints are to reach
- The product the joint needs
- The number of rooms or windows
- How much there is to do
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Whether it’s a home or a business
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
Need a quote? Please ring 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before work begins.
When it isn’t the sealant
To be straight with you, there are a few things sealant won’t fix:
- Cracks in the fitting rather than the joint
- A leaking trap, valve or supply pipe
- A bath, tray or worktop that moves until it’s properly fixed
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
What we seal
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Expansion joints
Why deal with it now?
Stripping out botched sealant adds time to a reseal, but not by much: the work takes a few hours for a typical bath or shower, longer where several layers have been applied. Compared with chasing the same leak every few months, it’s time well spent. Where a wall is exposed, as many are in small places like Great Amwell, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- Fully insured
- Sealant colour chosen to suit
- We never seal over old sealant
- Arbo and Everbuild products
Read our cost guide or customer reviews.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Use a soft cloth, not a scourer, on silicone
- Find out why the sealant failed first
- Never fill a movement joint with mortar or grout
- Keep an eye on the ceiling below the bathroom
Keep an eye on the joint at first, particularly where the original failure was caused by movement. Should anything change, phone 0345 464 0079 or email us.
Mould under a second layer of sealant keeps growing out of sight. When it finally shows, the whole bead needs to come out.
What happens on the day
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job generally takes a few hours for a typical bath or shower, longer where several layers have been applied. In a small place like Great Amwell, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at how the sealant has failed and check for movement or a leak path.
- Every layer of old sealant is cut and cleaned out.
- We clean the joint, treat any mould and let it dry.
- We use the right backing and sealant for any joint that moves.
- The new joint is tooled neatly and we explain anything else we found.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Clear the area around the work
Get a quote
If you’re in Great Amwell and need remedial sealant, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Work for landlords, hotels and businesses
For anyone letting property in or around Great Amwell, several properties can go on one quote. Send us the addresses and the work at each.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Your questions about remedial sealant in Great Amwell
Can you do remedial sealant in Great Amwell?
Yes. We work across London and the South East, and Great Amwell is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Is Great Amwell within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords and businesses?
Yes. We work for householders, landlords, letting agents, businesses and hotels.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can you take off two layers of silicone?
Yes. We remove every layer; new silicone doesn’t bond to old silicone, which is why over-sealing fails.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you when we finish.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
What information do you need?
A short description and the location. If we need more, we’ll ask.