Hertfordshire · England
Floor Joint Sealing in Flaunden
Specialist floor joint sealing for Flaunden: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Failed joint filler in concrete floors
- Perimeter joints in tiled floors filled with grout
- Skirting that has pulled away from the floor
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours, depending on the length of joint. In a small place like Flaunden, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we check the joint and the floor and agree which sealant suits it.
- Old caulk, grout or sealant is removed from the joint.
- The joint is cleaned, vacuumed and backed where depth needs controlling.
- The sealant goes in, chosen for the floor and coloured to suit it.
- The joint is tooled to a neat finish and we tell you when it can take feet and a mop.
How to prepare
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.
Related advice
Floor joint sealing for homes and businesses in Flaunden
Across Flaunden, we seal floor and skirting joints in homes and businesses. Each job starts with looking at the floor and the gap, since that decides which sealant suits. We work on tiled floors, thresholds and commercial floors, and common reasons people get in touch are threshold joints that have opened or worn and skirting that has pulled away from the floor.
In a village or hamlet like Flaunden, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
You get a 12-month guarantee, the same in Flaunden as everywhere else we work.
- Where
- Flaunden (HP3)
- Wider area
- Hertfordshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Act on grout cracks that run in a straight line
- Cone off fresh joints until they’re ready
- Ask before painting over a sealed joint
- Keep caulk for dry, still joints only
Silicone sealant is not made to take paint. If you plan to paint, we will use a paintable product.
Open skirting gaps let in draughts, dust and sometimes insects. Sealing it early keeps the room cleaner.
Common problems we fix in Flaunden
Wheels crossing an unfilled concrete joint chip its edges. Pallet trucks and trolleys knock the edges away.
Signs it’s time to call us include:
- Gaps opening between the floor and skirting
- Rigid edge joints in tiled floors
- Gaps at thresholds between rooms
- Skirting caulk that keeps splitting
Community buildings like Church of St Mary Magdalene (Church of England) are part of the picture too: joints in its floors, skirtings and thresholds need resealing as they wear.
What to look for in a quote
- How the surfaces are prepared before sealing
- How long to leave it before use
- What the quote includes, VAT included or not
- What guarantee comes with the work
How the job changes by surface
Wet room and bathroom floors
In a wet room, the floor-to-wall joint is a key line of defence. It’s resealed with a sanitary silicone and we will say if the problem looks like more than the joint.
Tiled floors
A crack running along a grout line is often a sign of a missing movement joint. We rake out that line and seal it.
Also near Flaunden
More services for Flaunden
New homes and floors in Flaunden
Floors around Hertfordshire run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. That is why the skirting and threshold joints need a flexible seal.
Letting a property close to Chalfont & Latimer station? Then gaps at skirtings and thresholds are worth sealing between tenancies. If you look after a building such as St Clement Danes School, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up.
Flaunden is about 3 miles north-east of Amersham, in Hertfordshire. We provide floor joint sealing to householders, landlords and businesses in Flaunden and the surrounding area. Our Hertfordshire coverage runs to 381 places, Flaunden among them. We also work in London, around 23 miles away.
We cover every part of HP3 for floor joint sealing. Neighbouring places we cover for floor joint sealing include Belsize (1 mile east), Chenies (1 mile south), Latimer (2 miles south-west), Little Chalfont (3 miles south-west) and Chorleywood (3 miles south). Larger places within reach include Watford (6 miles south-east), Hemel Hempstead (5 miles north-east), St Albans (9 miles north-east), Harpenden (11 miles north-east), Hatfield (14 miles east) and Borehamwood (11 miles east).
What’s near Flaunden
Locally, jobs take us to homes and businesses close to The Green Dragon pub, among other places. The closest station to Flaunden is Chalfont & Latimer station, about 2.4 miles south-west. Nearby you will also find Amersham Fair Organ Museum (3.1 miles south-west) and Hemel Hempstead Hospital (4.5 miles north-east). The countryside around Flaunden includes Sarratt Bottom nature reserve.
When something else is needed
We won’t take on work that will not last, so here’s what sealant can’t put right:
- Damaged concrete that needs breaking out and repairing
- Loose, hollow or cracked tiles, which need a tiler
- Floors that are uneven or need levelling
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Skirting boards
- Commercial floors
- Concrete floor joints
- Thresholds
- Wet room & bathroom floors
- Tiled floors
Common questions in Flaunden
Do you work for landlords with property near Chalfont & Latimer station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Will you come out to Flaunden?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Is caulk good enough for skirting?
Because caulk cracks where there’s movement or water. Skirting joints move with the floor, so a flexible sealant suits them better.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Leave it or put it right?
Left open, concrete joints break down under traffic. A sealed joint supports the edges before they need a bigger repair. Older cottages and farmhouses around Flaunden can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why Flaunden customers choose us
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
- Approved under the ARBOMaster scheme
- White, clear, grey or another colour, product permitting
See what affects the cost and what customers say.
What affects the cost of floor joint sealing
The price is agreed before any work begins. It takes into account:
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- The size of the job
- When we can work, for business premises
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
What to tell us for a quote
To make quoting easier, let us know:
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
- How we’d reach the joints
- Roughly how big the job is
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
