Hertfordshire · England
Bathroom & kitchen resealing in Holwell, Hertfordshire
Bathroom resealing for Holwell, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant that has split, shrunk or peeled away
- New sealant laid over old sealant that is now lifting
- Smears of silicone across the tiles
Bathroom resealing for homes and businesses in Holwell
It is not only bathrooms. The joint between worktop and wall, the edge of the sink and the bottom of the splashback all take splashes every day, and water that gets into the back edge of a worktop can swell the board. We reseal them with a kitchen-suitable silicone, matched to the worktop where it’s on show. Typical jobs include a joint torn by a bath that flexes and two layers of silicone, both failing, across baths, basins & vanity units and sinks & splashbacks.
In a village or hamlet like Holwell, homes are often older cottages and farmhouses alongside a few newer houses. Movement in older walls and floors tends to show first as cracked grout or split sealant.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Holwell (SG5)
- Wider area
- Hertfordshire
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
The work is kept neat and contained to the area we’re working on. Expect the work to take around two hours for one bath or shower, longer for a whole bathroom, and we tell you how long to leave it before we go. Somewhere as small as Holwell, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Protection goes down around the bath, shower or worktop.
- Old sealant is sliced away and the residue removed.
- We treat any mould and let the joint dry properly.
- Any bath is filled with water, then we lay a bead of anti-fungal silicone in white, clear or a matching colour.
- We finish the joint, clear up and tell you how long to leave it before it gets wet.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
- Clear the area around the work
Get a quote
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job.
Advice
Common questions in Holwell
Will you come out to Holwell?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Hitchin station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Can you just seal over the old silicone?
No. Sealing over the top looks fine for a few weeks, then lifts, because silicone doesn’t bond to silicone. Every trace of the old bead is removed first.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Is white the only colour available?
There’s a choice: clear, white and colours chosen to suit the room. We can help you pick when we quote.
How we quote for bathroom resealing
We do not publish a price list. What we look at:
- The amount of work
- The number of rooms or windows
- Whether there’s mould to deal with
- Which sealant suits the joint
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- The address or postcode of the job
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
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 add photos by email if you can.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
What sealant work can’t fix
Before you book, it’s worth knowing the limits too:
- Cracks in the tray itself rather than the joint
- A tray that rocks until it’s re-bedded
- Tiles that have come away from the wall
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Wet rooms
- Shower trays & enclosures
- Sinks & splashbacks
- Kitchen worktops & upstands
- Baths
- Basins & vanity units
Holwell homes and their sealant
Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you look after a building such as The Priory School, 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 St Peter (C of E) at Corner with Holwell Road, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Holwell is about 3 miles north-west of Hitchin, in Hertfordshire. We provide bathroom resealing to householders, landlords and businesses in Holwell and nearby, as part of our work across Hertfordshire. Holwell is one of 381 towns and villages in Hertfordshire we cover. There’s also a page for London, about 35 miles away.
Every address in SG5 is within our area for bathroom resealing. You will find streets such as Gurney's Lane, Pirton Road and Rand's Meadow. Other places close to Holwell include Pirton (2 miles south-west), Shillington (3 miles west), Apsley End (3 miles west), Hanscombe End (3 miles west) and Pegsdon (3 miles south-west). Larger places within reach include Stevenage (7 miles south-east), Welwyn Garden City (14 miles south), Harpenden (12 miles south), Hitchin (3 miles south-east), Letchworth (3 miles east) and Letchworth Garden City (3 miles east).
What’s near Holwell
The closest station to Holwell is Hitchin station, about 2.8 miles south-east. A little further out are Wymondley Castle (4.3 miles south-east) and Fairfield Hospital (2.7 miles north-east). The countryside around Holwell includes Markham's Hill and Oughtonhead Nature Reserve.
Surface by surface
Shower trays & enclosures
A tray that rocks will split any sealant. We check for movement before we reseal, and if the tray needs refixing, we’ll say so.
Sinks & splashbacks
Splashbacks in glass, tile or acrylic meet the worktop in a long joint. We renew it in clear, white or a matched colour.
Towns and villages near Holwell
What else we do in Holwell
Why act early in Holwell
Dealing with sealant early is a short job: it takes half a day or less for one room, longer when the kitchen is included. Left until water gets through, the job can grow to lifting panels, drying out and decorating. Older cottages and farmhouses around Holwell can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Holwell
- White, clear, grey or coloured to suit, where the product allows
- Over 20 years’ experience
- Experience in homes, commercial sites and hotels
- Old sealant always removed completely
When to call us in Holwell
Silicone doesn’t last for ever. Daily water, heat and cleaning products slowly wear it down, and how long it lasts comes down to use, cleaning and ventilation.
These are the problems we’re asked about most:
- Failed sealant on the screen profile
- Sealant that has split, shrunk or peeled away
- Leaks into the floor or ceiling below
- Water getting behind the kitchen upstand
For landlords with property near Hitchin station, fresh sealant around the bath, shower and sink between tenancies helps a property present well and keeps leaks at bay.
Comparing quotes
- What the cure time is
- How long the guarantee is
- What insurance they hold
- What preparation is included