Kent · England
Upper Hardres Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Upper Hardres and across Kent. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
Sand mastic for homes and businesses in Upper Hardres
We work across Upper Hardres renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you have window mastic to renew ahead of painting and cement or filler used on old window joints that has cracked, we can put it right, whatever the surface.
Around Upper Hardres, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Your job is guaranteed for a year, as with all our work.
- Location
- Upper Hardres (CT4)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Windows and doors in Upper Hardres
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Peter and St Paul include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Upper Hardres is about 4 miles south of Canterbury, in Kent. Our applicators cover sand mastic for householders, landlords and businesses in Upper Hardres and the surrounding area, as part of our work across Kent. Our Kent coverage runs to 922 places, Upper Hardres among them. Chelmsford is on our list too, around 44 miles away.
Jobs for sand mastic in CT4 works the same way as everywhere else we cover. Sand mastic is available to properties on Broxhall Road and Hardres Court Road. We also cover Lynsore Bottom (1 mile south-east), Pett Bottom (1 mile north-east), Lower Hardres (1 mile north), Petham (2 miles west) and Street End (2 miles north). Further out, we also cover Ashford (11 miles south-west), Canterbury (4 miles north), Dover (11 miles south-east), Folkestone (10 miles south), Whitstable (10 miles north) and Deal (13 miles east).
Landmarks near Upper Hardres
Typical jobs here are in homes near The Duck pub. For rail, the closest station is Bekesbourne station, about 3.9 miles north-east. Nearby you’ll also find Canterbury Castle (4.1 miles north) and Kent and Canterbury Hospital (3.5 miles north).
Do you need sand mastic in Upper Hardres?
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint and we normally remove them.
It’s worth asking for a quote if you see:
- Weathered mastic on the most exposed windows
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Letting a property close to Bekesbourne station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Before you book anyone
- What the cure time is
- Which colour the sealant will be
- Whether they’re fully insured
- Who does the work, and how experienced they are
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
If you manage several properties in or around Upper Hardres, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Places near Upper Hardres
More services for Upper Hardres
The process
At the end, we look at the finished work together. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. Somewhere like Upper Hardres needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or drop us an email.
Read more
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Why act early in Upper Hardres
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In a small place like Upper Hardres, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
What you get with us
- More than 20 years in sealant work
- A 12-month guarantee on all work
- Full insurance on every job
- Arbo and Everbuild products
Take a look at our cost guide or customer reviews.
Upper Hardres questions
Will you come out to Upper Hardres?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Upper Hardres for sand mastic?
Yes. Our work covers London and the South East, and Upper Hardres is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Can you quote for more than one area?
Yes. Just list everything you need.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Do you work for letting agents?
Yes, we do. We work in homes, commercial premises and hotels, and we’re fully insured.
How the job changes by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Timber door frames
Doors face weather and wear and the mastic can crack early. We rake it out and renew it.
Quotes for sand mastic in Upper Hardres
Your quote is based on your job. We take into account:
- How many areas need sealing
- Access and height
- The number and length of the joints
- Whether there’s mould to deal with
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- The address or postcode of the job
- What’s wrong with the joints now
- Photos by email, if that is easy
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before any work starts.