Reading · England
Caversham Heights Remedial Sealant
Failed sealant joints in Caversham Heights need attention? We cut out the old, prepare the joints and apply the right sealant.
- Torn expansion joints
- Worktop sealant that has shrunk and split
- A second bead peeling off the first
How the visit works
On the day, we start by going over the job with you. Surfaces next to the work are protected before any work starts. Most jobs take a few hours for a typical bath or shower, longer where several layers have been applied. In a smaller place like Caversham Heights, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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.
How to prepare
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
Ask for a quote
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Advice
Remedial sealant for homes and businesses in Caversham Heights
Getting old sealant out properly is slow, careful work. Every layer is cut out, the residue cleaned off and the joint degreased, taking care not to scratch the surfaces around it. Only then can new sealant bond. We work on botched or over-sealed joints, expansion joints and mouldy bath & shower sealant, and common reasons people get in touch are thick, messy sealant smeared over tiles and worktop sealant that has shrunk and split.
In and around Caversham Heights, older properties sit alongside newer ones. In older homes, walls and floors can move a little more, so the right flexible sealant matters.
Your job is guaranteed for a year, as with all our work.

- Place
- Caversham Heights (RG4)
- Wider area
- Reading
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of remedial sealant
We quote each job individually. These are the things that affect it:
- Any mould that needs treating
- The number of rooms or windows
- Whether the work is at height
- Which sealant suits the joint
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- Where the job is, and your postcode
- Whether it’s a home or a business
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Leave it or put it right?
Leaks that are left keep doing damage out of sight: soaked floorboards, ceiling stains below and blown plaster. By comparison, sorting the joint is quick. In an older home around Caversham Heights, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
- We agree the colour with you first
- Old sealant always removed completely
Do you need remedial sealant in Caversham Heights?
Products get mixed up: acrylic caulk in a wet area, a general-purpose sealant on a moving joint, or an acetoxy silicone on natural stone or some metals. None of them last.
The most common problems we see are:
- Sealant that came away because the surface wasn’t prepared
- Leaks that keep coming back after resealing
- Smears and lumps from a botched reseal
- A second bead peeling off the first
If you let a flat or house near Reading station, a joint that keeps failing is best fixed properly while the property is empty.
What to look for in a quote
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- Which colour the sealant will be
- Are they insured?
Places near Caversham Heights
More services for Caversham Heights
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Common questions in Caversham Heights
Will you come out to Caversham Heights?
Yes. Caversham Heights is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Reading station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.
How long should I leave it?
Cure times vary by product. We tell you how long to leave it before we go.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
What information do you need?
Tell us what needs doing and where. If we need more, we’ll ask.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
Someone sealed over the old bead. Can you fix it?
Yes. Each layer is cut out and the residue cleaned off, then the joint is resealed once.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What remedial sealant looks like in Caversham Heights
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings. There are hotels and other places to stay in and around Caversham Heights. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
Managing a site like Caversham Primary School? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s. Homes close to St. Andrew's Church include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant.
Caversham Heights is about 1 mile west of Caversham, in Reading. We carry out remedial sealant for homes and businesses in Caversham Heights and the surrounding area. Our Reading coverage runs to 34 places, and Caversham Heights is one of them.
Here we cover the RG4 postcode area for remedial sealant. Whether your property is on River Road, Chazey Road and Albert Road or a nearby road, our applicators can take on the job. We also cover Caversham (1 mile east), Tokers Green (1 mile north), Emmer Green (1 mile north-east), Lower Caversham (1 mile south-east) and Chalkhouse Green (1 mile north). Further out, we also cover Shinfield (5 miles south), Arborfield Garrison (8 miles south-east), Horncastle (3 miles south-west), Whitley Wood (4 miles south), Sonning Common (3 miles north) and Fords Farm (3 miles south-west). Caversham Heights is one of the larger places we cover in Reading.
Around Caversham Heights
Around Caversham Heights, our work takes us to homes and buildings near Hemdean House School, Round Copse and Highdown School and Sixth Form Centre. For rail, the closest station is Reading station, roughly 1.4 miles south-east of the centre. A little further out are Battle Hospital (1.3 miles south) and Royal Berkshire Regiment Museum (1.4 miles south-west). Green spaces nearby include Fobney Island Wetland Reserve and Sonning Hill.
What we can’t put right
To be straight with you, some problems need a different trade:
- A tray or bath that is cracked
- A leaking trap, valve or supply pipe
- Sealant in an older building that needs testing for asbestos first
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Joints and surfaces we work on
- Botched or over-sealed joints
- Expansion joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Mouldy bath & shower sealant
