Hertfordshire · England
Remedial sealant & repairs in Frogmore, Hertfordshire
Professional remedial sealant in and around Frogmore, with old sealant always removed completely and a one-year guarantee.
- Products that weren’t meant for the joint
- Movement joints that have split or pulled away
- A shower that leaks however often it’s resealed
Remedial sealant in Frogmore, done properly
If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. We look for the cause before we reseal. We work on mouldy bath & shower sealant, shrunken worktop sealant and botched or over-sealed joints, and people most often call us about repeat leaks from the same joint and mould trapped under a layer of silicone.
Homes around Frogmore are mostly houses and cottages rather than flats. Sealant and grout wear out here just as they do anywhere: everything old comes out before the new sealant or grout goes in.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Frogmore (AL2)
- Region
- Hertfordshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
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 fails, we can still redo it.
Remedial sealant in Frogmore: local notes
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
For site and facilities teams at buildings such as Park Street Church of England Voluntary Aided Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. For an older house near a landmark such as Church of the Holy Trinity, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Frogmore is about 2 miles south of St Albans, in Hertfordshire. From the centre of Frogmore to the outskirts, remedial sealant is available for homes and businesses alike. Our area takes in 381 places across Hertfordshire. For nearby work, see our London page (18 miles or so).
We work across AL2 for remedial sealant and the streets around it. Local streets include Centaurus Square, Frogmore and Avian Avenue, all of which we cover. We also cover Park Street (1 mile north-west), How Wood (1 mile west), Colney Street (1 mile south-east), Chiswell Green (1 mile north-west) and Sopwell (1 mile north). Within a short drive, we also cover Watford (5 miles south-west), Hemel Hempstead (6 miles north-west), Stevenage (15 miles north-east), Welwyn Garden City (8 miles north-east), Harpenden (7 miles north) and Hoddesdon (14 miles east).
Around Frogmore
We work in homes and buildings around The Old Red Lion pub and Marlborough Science Academy. Frogmore has its own railway station: How Wood station. Well-known places in the area include Hypocaust Museum (2.3 miles north-west) and Hilfield Castle (4.5 miles south). Not far away are Verulamium Lake and Broad Colney Lakes.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Sealant in an older building that needs testing for asbestos first
- Water damage behind tiles that needs a tiler
- A leaking trap, valve or supply pipe
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before booking.
What we seal
- Failed movement joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Expansion joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
FAQs for Frogmore
Can you help a landlord with a rental near How Wood station?
Yes, we work for letting agents and landlords. Just ring 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 Frogmore?
Yes, Frogmore is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How long does the work take?
Longer than a simple reseal, because every layer has to come out. For most joints, it’s a few hours, and we confirm the time with your quote.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you fix expansion and movement joints?
Yes. Failed movement joints are cut out and resealed with backing and a flexible sealant suited to the movement.
How do I get a quote for remedial sealant in Frogmore?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
What happens if it’s left?
Leaks that are left keep doing damage out of sight: soaked floorboards, ceiling stains below and blown plaster. Dealing with the joint now is a small job by comparison. Where a wall is exposed, as many are in small places like Frogmore, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Why Frogmore clients choose us
- 4.9 on Google from 180+ five-star reviews
- Any old sealant cut out fully, not covered over
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
See our cost guide and customer reviews.
When to call us in Frogmore
Joint depth matters. A bead bonded on three sides, or laid too thick, cannot flex, so it tears when the joint moves. Backing rod or bond-breaker tape prevents it.
Signs it’s time to call us include:
- Worktop sealant that has shrunk and split
- Sealant applied over old sealant that has lifted
- Sealant peeling off a dusty or damp surface
- Products that weren’t meant for the joint
If you let a flat or house near How Wood station, botched sealant from a previous quick fix is easier to strip out between tenants.
What to look for in a quote
- Whether you can choose the colour
- What insurance they hold
- What the cure time is
- What guarantee comes with the work
How we quote for remedial sealant
We quote each job individually. This is what makes a difference:
- The product the joint needs
- The amount of work
- Access and height
- How many rooms, windows or areas are involved
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Asking for a quote
When you contact us, it’s useful to know:
- Any previous sealing or DIY work
- A few photos by email, if you can
- The problem you’ve noticed
- Access, such as stairs, a lift or height
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand.
Landlord and commercial work in Frogmore
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
How the visit works
Before we leave, we go over the finished joints with you. The visit itself normally takes a few hours, depending on how many layers have to come out, depending on the size of the job. In a small place like Frogmore, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we work out whether the problem is the sealant, movement or a leak.
- Each layer is cut out and the residue cleaned off.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- We finish neatly and point out anything that needs another trade.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we’re working on
- Mention if the joints have been sealed before
Getting a quote
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.