West Berkshire · England
Lambourn Floor Joint Sealing
Floor joint sealing in Lambourn from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Concrete floor joints that have broken down
- Tiled floors with no room to move
- Worn sealant at door thresholds
Floor joint sealing around Lambourn
Floors around West Berkshire run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. The joint at the skirting or threshold has to allow for that.
If you look after a church, hall or community building such as Church of St Michael and All Angels, joints in its floors, skirtings and thresholds need resealing as they wear.
Lambourn is about 7 miles south-west of Wantage, in West Berkshire. Homes, rented property, offices and hotels in Lambourn is covered for floor joint sealing, old or new, large or small. The work is guaranteed for a year. We cover 155 towns and villages across West Berkshire, from the larger towns to small villages. Our Oxford page covers work nearby, about 21 miles away.
Jobs for floor joint sealing in RG17 works the same way as everywhere else we cover. Whether your property is on High Street, Station Road and Chapel Lane or a nearby road, we can help. If you’re just outside Lambourn, we cover Sheepdrove (1 mile north-east), Upper Lambourn (1 mile north-west), Westcot (6 miles north), Sparsholt (6 miles north) and Kingston Lisle (6 miles north). Within a short drive, we also cover Newbury (12 miles south-east), Thatcham (14 miles south-east), Speenhamland (11 miles south-east), Hungerford (7 miles south), Shaw (12 miles south-east) and Wash Common (12 miles south-east). Lambourn is one of the larger places we cover in West Berkshire.
Around Lambourn
Around Lambourn, our work takes us to homes and buildings near The George pub. For a walk, there’s Watts Bank and Rams Hill.
Floor joint sealing in Lambourn
Tiled floors can crack along the grout when there’s no room for movement. We can turn a line of grout into a movement joint by replacing it with flexible sealant coloured to suit the grout. We work on thresholds, skirting boards and tiled floors, and people most often call us about rigid edge joints in tiled floors and concrete floor joints that have broken down.
In smaller places like Lambourn, new homes tend to come as small developments or single plots. Each still needs its sealant and floor joints finished properly from day one.
All of our work is guaranteed for twelve months, in Lambourn and everywhere else we cover.
- Place
- Lambourn (RG17)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Why deal with it now?
Water that gets past a floor joint can damage the floor beneath. Sealing them now keeps the problem at the surface. Around Lambourn, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- We agree the colour with you first
- More than 20 years in sealant work
- White, clear, grey or another colour, product permitting
- Tidy, careful work
See what affects the cost or our reviews.
What happens on the day
When we arrive, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. The work generally takes a few hours for most rooms, longer for large commercial floors. A visit to Lambourn is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- The room is cleared along the joints so we can reach them.
- We take out the cracked caulk, grout or old sealant.
- We clean and dry the edges of the joint.
- We apply a flexible sealant suited to the floor and tooled.
- Finally, we check the work and talk you through aftercare.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
- Clear the area around the work
Getting a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Advice
Signs you need floor joint sealing in Lambourn
Concrete floor joints break down when traffic runs over open or failed joints. Pallet trucks and trolleys knock the edges away and the joint gets wider.
Most people get in touch when they notice something like this:
- Threshold joints that have opened or worn
- Open joints around bathroom floor edges
- Open gaps along the bottom of skirting boards
- Caulk that has cracked where the floor moves
Schools such as Lambourn CofE Primary School are buildings too, and entrance and corridor floor joints take a lot of traffic.
What to look for in a quote
- How much experience the applicator has
- Whether all the old sealant comes out first
- The length of the guarantee
- Whether you can choose the colour
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, 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.
What sealant work cannot fix
We will always be straight with you, so here’s what new sealant will not do:
- Loose, hollow or cracked tiles, which need a tiler
- Subfloor problems that need a flooring contractor
- Concrete repairs beyond the joint
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Thresholds
- Commercial floors
- Wet room & bathroom floors
- Tiled floors
- Skirting boards
- Concrete floor joints
What affects the cost of floor joint sealing
Call for a quick quote. The main things that affect it are:
- How much there is to do
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- The type of sealant required
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
Helping us quote
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- Where the property is
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Nearby places to Lambourn
More services for Lambourn
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Look at floor joints each spring
- Check the sealant is paintable before decorating
- Vacuum floor joints regularly to stop grit building up
- Avoid sloshing water against skirting
Silicone sealant is not made to take paint. If the joint will be painted, tell us beforehand so we use a paintable sealant.
A tiled floor that cracks along a line will keep cracking until it can move. Adding a movement joint early can stop cracks spreading to the tiles.
Your questions about floor joint sealing in Lambourn
Is there a guarantee on floor joint sealing in Lambourn?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover Lambourn for floor joint sealing?
Yes. Our work covers London and the South East, and Lambourn is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Can you seal where the floor meets the bath panel?
Yes. Where a floor meets a bath panel, kitchen plinth or skirting in a wet area, we use a flexible silicone so water can’t get into the gap.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Can I choose the sealant colour?
Usually, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.
Why has a gap opened under my skirting?
Generally it’s movement: timber drying in winter, floors settling, or caulk that can’t stretch. A flexible bead keeps up with the movement.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
