Kent · England
Hoppers Corner External Mastic
External mastic in Hoppers Corner from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Movement joints filled with mortar instead of sealant
- Moss and dirt in joints with no sealant left
- Failed sealant between panels on a façade
Do you need external mastic in Hoppers Corner?
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Keep an eye out for these signs:
- Sealant that has lost its bond to the brick or render
- Water getting into walls through failed joints
- Joints pointed up with cement by mistake
- Plants rooting in failed movement joints
If you let a flat or house near East Farleigh station, outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- What product goes in the joint
- Which colour the sealant will be
- How the joint is cleaned and prepared
- How much experience the applicator has
How we handle external mastic in Hoppers Corner
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. If you have leaking joints around cladding and façade panels and water getting into walls through failed joints, we can put it right.
Older homes in small places like Hoppers Corner may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
Your job is guaranteed for a year, as with all our work.
- Where
- Hoppers Corner (ME15)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Hoppers Corner: your questions answered
Do you cover smaller places like Hoppers Corner?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do external mastic in Hoppers Corner?
Yes. We work across London and the South East, and Hoppers Corner is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Can you match the colour of my brickwork?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
When is the sealant fully cured?
It depends on the product. Before we leave, we’ll tell you the cure time.
Different surfaces, different methods
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the building and we leave things clean and tidy. Somewhere like Hoppers Corner needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
Getting a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Read more
Work for landlords, hotels and businesses
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
How we quote for external mastic
Your quote is based on your job. We take into account:
- The size of the job
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- How easy the joints are to reach
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Photos by email, if that’s easy
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- The rough size of the job
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
Nearby places to Hoppers Corner
More services for Hoppers Corner
Walls and rooflines in Hoppers Corner
Historic houses like Stoneacre (about 4.9 miles east) are a reminder that the area around Hoppers Corner has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to All Saints Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. If you look after a building such as Barming Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Hoppers Corner is about 3 miles west of Maidstone, in Kent. Our applicators cover external mastic for homes and businesses in Hoppers Corner and the surrounding area. Our area takes in 922 places across Kent. London is on our list too, about 29 miles from Hoppers Corner.
Here we cover the ME15 postcode area for external mastic. Whether your property is on Lower Road and Charlton Lane or a nearby road, our applicators can take on the job. Nearby, we also carry out external mastic in Kettle Corner (1 mile north-east), Farleigh Green (1 mile south), Barming Heath (1 mile north), West Farleigh (1 mile south-west) and East Farleigh (1 mile east). Larger places within reach include Maidstone (3 miles east), Sittingbourne (13 miles north-east), Sevenoaks (12 miles west), Royal Tunbridge Wells (12 miles south-west), Gravesend (13 miles north) and Tonbridge (9 miles south-west).
Around Hoppers Corner
In Hoppers Corner, that means homes and buildings near The Tickled Trout pub, Oakwood Park Grammar School and Quarry Wood and the streets around them. The nearest railway station is East Farleigh station, roughly 0.9 miles east. Other landmarks nearby include Kent Fire Brigade Museum (2.2 miles east) and Oakwood Hospital (1.4 miles north-east).
Leave it or put it right?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Older cottages and farmhouses around Hoppers Corner can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
Why Hoppers Corner clients choose us
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- A sealant colour to suit the surroundings
- Any old sealant cut out fully, not covered over
Read our cost guide and our reviews.
Should I try it myself first?
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.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.