Greater London · England
Avery Hill Floor Joint Sealing
We cover Avery Hill for sealing skirting-to-floor joints, tiled floor movement joints and concrete floor joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Skirting caulk that keeps splitting
- Worn sealant at door thresholds
- Open joints that fill with dirt
Floor joint sealing in Avery Hill, done properly
Thresholds are where two floors, or a floor and a door, meet. We use a flexible product that suits both floors so the joint stays neat. Typical jobs include perimeter joints in tiled floors filled with grout and open joints around bathroom floor edges, on thresholds, tiled floors and wet room & bathroom floors.
New flats are going up across London, many of them in larger developments. Snagging there often goes through the developer or managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
Each job carries a 12-month guarantee, large or small.
- Where
- Avery Hill (SE9, DA15, DA16)
- Wider area
- Greater London
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Avery Hill
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the job changes by surface
Commercial floors
Commercial floors take more traffic than most homes. The sealant is chosen for the traffic the floor takes.
Concrete floor joints
Concrete floors have sawn or formed joints to control cracking. We reseal them with a floor-joint product suited to the traffic.
What happens if it’s left?
Putting new grout into a crack that keeps reappearing doesn’t last. The movement is still there, so the grout fails again. Replacing that line with flexible sealant gives it somewhere to go. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Avery Hill, the repair is bigger than the sealant job would have been.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Avery Hill
- Homes, businesses and hotels
- Quality sealants from Arbo and Everbuild
- Sealant colour chosen to suit
- A 12-month guarantee on all work
Read what affects the cost or what customers say.
Keeping the joints in good condition
So the new joints stay in good condition:
- Use furniture pads near skirting
- Have a cracking tiled floor checked before tiles break
- Don’t paint over silicone
- Keep heavy wheels off new concrete joints until cured
Keep heavy traffic off resealed concrete joints for the cure time we give you. Cone off the area if needed until it’s ready.
In wet areas, an open floor joint lets water reach the subfloor. Resealing early keeps it out.
How we quote for floor joint sealing
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- How easy the joints are to reach
- The old material and how stubborn it is
- The product the joint needs
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Photos by email, if that is easy
- The address or postcode of the job
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
Want a quote for floor joint sealing? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
How it works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for most rooms, longer for large commercial floors. In Avery Hill, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by checking the floor, the joint and what traffic it takes.
- We remove what’s in the joint now.
- The joint is vacuumed clean and backing fitted where needed.
- The chosen sealant goes in, coloured to suit the floor.
- We tool it neatly and tell you when it can be walked on and cleaned.
Before we arrive
- Mention if the joints have been sealed before
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
Getting a quote
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 email photos if that’s easy.
Advice
Nearby places to Avery Hill
What else we do in Avery Hill
Floor joint sealing in Avery Hill: local notes
Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. Floors around Greater London run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. That’s why the skirting and threshold joints need a flexible seal.
If you look after a church, hall or community building such as Church of Holy Trinity, floor and skirting joints in halls and kitchens wear like any others. Avery Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Avery Hill is about 1 mile north-east of Eltham, in Greater London. Wherever you are in the SE9 postcode area, we can carry out floor joint sealing at your property. Our Greater London coverage runs to 764 places, and Avery Hill is one of them. For nearby work, see our London page, about 8 miles away.
Our applicators cover all of the SE9, DA15 and DA16 postcode area for floor joint sealing and the streets around it. Streets in the area include Bexley Road, Glenure Road and Perpins Road, and we cover them all. Main roads around Avery Hill include the A210, so getting to you is simple. If you’re just outside Avery Hill, we cover Blackfen (1 mile east), Eltham (1 mile south-west), New Eltham (1 mile south), Falconwood (1 mile north-east) and Well Hall (1 mile west). We also work in nearby towns such as London (8 miles north-west), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (12 miles west), St Pancras (10 miles north-west) and Shoreditch (8 miles north-west).
Landmarks near Avery Hill
We work in homes and buildings around Shoulder of Mutton Green and Alderwood Primary School and the streets around them. The nearest railway station is Falconwood station, roughly 0.6 miles north of the centre. A little further out are Greenwich Castle (3.8 miles north-west) and Metropolitan Police Museum (1.7 miles south-east). Open spaces near Avery Hill include Summer Hill and The Tarn.
Signs you need floor joint sealing in Avery Hill
A floor laid tight to the walls has no room to move. As it expands, the edges lift or crack.
If you can see any of these, it’s time to have the joints looked at:
- Grout used at the floor edge instead of sealant
- Open joints that fill with dirt
- Skirting caulk that keeps splitting
- Gaps between floors and kitchen plinths
For landlords with property near Falconwood station, gaps at skirtings and thresholds are worth sealing between tenancies.
Questions to ask before you book
- How much experience the applicator has
- Whether they’re fully insured
- How hidden problems are handled
- When the joint can take water or movement
Avery Hill questions
I let a flat near Falconwood station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Is parking an issue for floor joint sealing in Avery Hill?
Parking in Avery Hill, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
How long does the job take?
As a guide, most jobs take a few hours, depending on the length of joint. Bigger jobs take longer, and we’ll tell you how long to expect.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job, large or small.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.