Kent · England
External Mastic in Perrywood
External mastic for Perrywood, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Joints pointed up with cement by mistake
- Old sealant gone brittle and cracked
- Panel joints letting water in
External mastic in Perrywood
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall. We’re often asked to deal with moss and dirt in joints with no sealant left and joints where the bead has come unstuck, on brickwork movement joints, façade panels and concrete & block.
Outside joints can only be sealed when they’re dry, so work in Perrywood is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Big or small, it’s backed by our 12-month guarantee.
- Place
- Perrywood (ME13)
- Region
- Kent
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Render joints
Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out and helps it last.
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. A primer goes on where the product requires one before sealing.
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Places near Perrywood
What else we do in Perrywood
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours to a few days, depending on the length of joint and the access. In a small place like Perrywood, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Tell us about any water getting in
- Mention any tricky access
- Keep children and pets away from the work area
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Related advice
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Why act early in Perrywood
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. In a small place like Perrywood, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- A choice of colours where the product allows
- Fully insured
- A 12-month guarantee on all work
- Neat joints and a tidy finish
Take a look at what affects the cost and what customers say.
External mastic in Perrywood: local notes
With historic houses such as Belmont House and Gardens (about 3.4 miles west) nearby, there’s older building stock in the area around Perrywood as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Mary include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near Selling station, outside joints that have cracked can let damp into a rental, so check them between lets.
Perrywood is about 4 miles south-east of Faversham, in Kent. Perrywood gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. 922 places in Kent are on our list. Our Chelmsford page covers work nearby (38 miles or so).
All of ME13 is within our area for external mastic. We also cover Selling (1 mile north), Hogben's Hill (1 mile north-west), Shottenden (1 mile south), Neames Forstal (1 mile north-east) and Gushmere (1 mile north). Larger places within reach include Ashford (9 miles south), Canterbury (7 miles east), Sittingbourne (10 miles north-west), Whitstable (8 miles north-east), Faversham (4 miles north-west) and Herne Bay (12 miles north-east).
Around Perrywood
In Perrywood, that means homes and buildings near The White Lion Public House and the streets around them. Perrywood’s nearest station is Selling station, about 1.2 miles north-east. Nearby you’ll also find Tower keep castle at Chilham (2.1 miles south-east).
Signs you need external mastic in Perrywood
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Keep an eye out for these signs:
- Joints where the bead has come unstuck
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
- Moss and dirt in joints with no sealant left
Schools such as Selling Church of England Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Comparing quotes
- How long the guarantee is
- How the joint is cleaned and prepared
- Are they insured?
- Whether you can choose the colour
Quotes for external mastic in Perrywood
We quote each job individually. These are the things that affect it:
- How many areas need sealing
- Whether there’s mould to deal with
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and give you a clear price before any work starts.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- A few photos by email, if you can
- Any previous sealing or DIY work
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Common questions in Perrywood
Do you cover smaller places like Perrywood?
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 help a landlord with a rental near Selling station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you seal joints where cladding meets other materials?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.
How much does external mastic cost in Perrywood?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or email us with a short description of the job.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, wherever you are.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.