Kent · England
Sand mastic for sash & case windows in Goodnestone, Kent
Window and door surrounds in Goodnestone need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Cracked mastic round a front door frame
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is generally favoured.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Sand mastic for homes and businesses in Goodnestone
Across Goodnestone, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. Typical jobs include open joints round the window box and failed mastic on an exposed elevation, across timber door frames, brick reveals and tenement windows.
Homes in small places like Goodnestone often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Your job is guaranteed for a year, as with all our work.
- Where
- Goodnestone (ME13)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Goodnestone
What else we do in Goodnestone
Quotes for sand mastic in Goodnestone
There’s no set price list, because jobs vary so much. What we look at:
- Working hours on commercial sites
- Any mould that needs treating
- The amount of work
- The number of rooms or windows
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- The type of property
- Whether it has been sealed before
- What’s wrong with the joints now
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.
The process
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. The job usually takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Goodnestone, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or send us an email.
Advice
For landlords and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Goodnestone: your questions answered
Will you come out to Goodnestone?
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 Faversham station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Can you match the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before any work starts.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
What do you need from me for a quote?
A short description and the location, plus photos if you have them. We will ask anything else we need to know.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
When will the new mastic be hard?
It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.
Which is right for my windows, sand mastic or modern sealant?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Leave it or put it right?
Filling over old, loose mastic does not last. We remove the loose material first so the new work lasts. In a small place like Goodnestone, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why Goodnestone clients choose us
- More than 20 years in sealant work
- Tidy, careful work
- We are fully insured
- 12-month guarantee on every job
Read our cost guide and customer reviews.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Ask the planning authority about consent for listed or conservation-area homes
- Avoid patching sand mastic with silicone
- Make sure water runs off the sill
- Plan mastic work ahead of painting
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Common problems we fix in Goodnestone
Previous repairs in cement or silicone often trap water or crack away. They don’t suit the joint and we normally remove them.
The problems people usually mention when they call are:
- Wind and rain getting in round a sash window
- Open joints round the window box
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
For landlords with property near Faversham station, any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- How the colour is chosen
- Are they insured?
- What product goes in the joint
- Who turns up on the day
Sand mastic in Goodnestone: local notes
Goodnestone is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Belmont House and Gardens (about 5 miles south-west) nearby, there’s older building stock in the area around Goodnestone as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Schools such as Graveney Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Homes close to St Bartholomew's Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Goodnestone is about 2 miles east of Preston, in Kent. Jobs in Goodnestone get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. 922 places in Kent are on our list, from the larger towns to small villages. For nearby work, see our Chelmsford page, about 35 miles away.
All of ME13 is within our area for sand mastic, from the main roads to the quietest streets. Whether your property is on Head Hill Road and Cherrywood or anywhere close by, our applicators can take on the job. We also cover Culmers (1 mile north-east), Graveney (1 mile north-east), Broom Street (1 mile north), Staplestreet (1 mile south-east) and Slutshole (1 mile south-east). Within a short drive, we also cover Ashford (12 miles south), Canterbury (7 miles east), Sittingbourne (9 miles west), Whitstable (5 miles north-east), Herne Bay (9 miles north-east) and Minster (9 miles north-west).
What’s near Goodnestone
Around Goodnestone, our work takes us to homes and buildings near Queen Elizabeth's Grammar School and Mount Ephraim Gardens. The nearest railway station is Faversham station, roughly 1.9 miles west. Other landmarks nearby include Whitstable and Tankerton Hospital (5.8 miles north-east). Open spaces near Goodnestone include Blean Woods RSPB Reserve.