Kent · England
Sand Mastic in Perry
Window and door surrounds in Perry need attention? We cut out the old, prepare the joints and apply the right sealant.
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Open joints round the window box
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
About our sand mastic in Perry
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it, so ask us before you decorate. If you are dealing with gaps round a timber door in stone or brick and tired mastic found when preparing windows for paint, we can help, whatever the surface.
In a village or hamlet like Perry, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee.
- Place
- Perry (CT3)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Perry
What else we do in Perry
How to look after the new joints
After the cure time, these simple habits help:
- Plan mastic work ahead of painting
- Do not run silicone over sand mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Have rotten timber repaired before new mastic goes in
Leave the new mastic unpainted, as traditional guidance advises. If you are redecorating, ask us first.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
How the job changes by surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Perry questions
Do you cover smaller places like Perry?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Adisham station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Is sand mastic better than silicone for my windows?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses.
When will the new mastic be hard?
Not right away. It skins first and hardens fully later and we’ll give you an idea for your job.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What we’re called out for in Perry
Previous repairs in cement or silicone often trap water or crack away. They do not move with the timber, and they usually need raking out.
Common reasons people contact us are:
- Cement or filler used on old window joints that has cracked
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
- Tired mastic found when preparing windows for paint
In the older streets around Elmstone Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
Questions to ask before you book
- What happens if the job turns out different
- Which colour the sealant will be
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
Why deal with it now?
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Around Perry, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why book with us
- We never seal over old sealant
- Arbo and Everbuild products
- Anti-fungal silicone where joints get wet
- Homes, businesses and hotels
Read how sealant jobs are priced and our reviews.
How it works
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a single window, longer for several, depending on the size of the job. Somewhere like Perry 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.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
Advice
What we can’t put right
Before booking, it’s worth knowing the limits:
- Sashes that need overhauling
- Planning or listed building consent (your local planning authority decides)
- Broken panes
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Perry
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Brick reveals
- Tenement windows
Sand mastic in Perry: local notes
With historic houses such as Goodnestone Park (about 3.1 miles south) nearby, there’s older building stock in the area around Perry as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Preston Primary School, the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Adisham station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Perry is about 7 miles east of Canterbury, in Kent. We carry out sand mastic for homes and businesses in Perry, as part of our work across Kent. Our Kent coverage runs to 922 places, and Perry is one of them. Our Chelmsford page covers work nearby (45 miles or so).
Jobs for sand mastic in CT3 is quoted and booked the same way as anywhere else. Whether your property is on Walmestone Road and Perry Lane or anywhere close by, our applicators can take on the job. Neighbouring places we cover for sand mastic include Nash (1 mile east), Shatterling (1 mile south), Hoaden (1 mile east), Elmstone (1 mile north) and Broomhill (1 mile south-west). Within a short drive, we also cover Canterbury (7 miles west), Margate (9 miles north-east), Dover (11 miles south), Folkestone (14 miles south), Ramsgate (8 miles north-east) and Broadstairs (10 miles north-east).
Landmarks near Perry
The nearest railway station is Adisham station, about 3.6 miles south-west. A little further out are St Martins Hospital (5.6 miles west). Open spaces near Perry include Monk's Wall nature reserve.