Kent · England
Goodley Stock Window Mastic
Window and door frames in Goodley Stock need attention? We cut out the old, prepare the joints and apply the right sealant.
- Black, perished sealant on frames
- Hard, cracked sealant around windows
- White mastic on grey or black frames
About our window mastic in Goodley Stock
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Common call-outs are for gaps between the frame and the inside reveal and old mastic that has gone black or come away, across timber windows & doors, composite doors and window sills.
Around Goodley Stock, 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.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Goodley Stock (TN8)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
If you are set on DIY, put the effort into 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.
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.
Landlords, agents and businesses in Goodley Stock
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Windows and doors in Goodley Stock
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Chartwell (about 1 mile east) nearby, there’s older building stock in the area around Goodley Stock as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to Holy Trinity Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Goodley Stock is about 6 miles south-west of Sevenoaks, in Kent. Every kind of property in Goodley Stock is covered for window mastic. Every job comes with our 12-month guarantee. Across Kent, we cover 922 places, Goodley Stock among them. There’s also a page for Crawley, roughly 14 miles from Goodley Stock.
Work in TN8 is quoted and booked the same way as anywhere else. If you’re just outside Goodley Stock, we cover Crockham Hill (1 mile south), The Chart (1 mile west), Moorhouse Bank (1 mile north-west), Puddledock (2 miles east) and Pains-Hill (2 miles west). Larger places within reach include Dartford (15 miles north-east), Sevenoaks (6 miles north-east), Royal Tunbridge Wells (12 miles south-east), Tonbridge (10 miles east), Swanley (12 miles north-east) and Kings Hill (15 miles east).
Near you in Goodley Stock
Locally, jobs take us to homes and businesses close to Carpenters Arms, among other places. For rail, the closest station is Hurst Green station, about 2.4 miles west. Nearby you will also find Tandridge Priory (1.5 miles north-west) and Haxted Watermill Museum (3.9 miles south). The countryside around Goodley Stock includes Dryhill Nature Reserve and Betsom's Hill.
When to call us in Goodley Stock
Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
If you can see any of these, it’s time to have the joints looked at:
- Old mastic that has gone black or come away
- Cracked internal joints between frame and plaster
- Water coming in at the bottom corners of a door
- Cold air getting in at the frame edge
Letting a property close to Hurst Green station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- How the colour is chosen
- Who turns up on the day
- When the joint can take water or movement
- What product goes in the joint
When it isn’t the sealant
To be straight with you, there are a few things sealant won’t fix:
- Draughts through the window seals rather than the frame
- A frame that has rotted at the joint
- Condensation trapped between the panes
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Patio & French doors
- Composite doors
- Aluminium frames
- Timber windows & doors
- Window sills
- uPVC windows
What we do, step by step
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. It usually takes a few hours for a few frames, or a day or more for a whole house. In a small place like Goodley Stock, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- Keep children and pets away from the work area
Getting a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Related advice
Nearby places to Goodley Stock
Other services in Goodley Stock
Goodley Stock: your questions answered
Do you cover Goodley Stock for window mastic?
Yes, Goodley Stock is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Do you cover smaller places like Goodley Stock?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
How much does window mastic cost in Goodley Stock?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or drop us an email and tell us what needs doing and where.
When is the sealant fully cured?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Are you insured?
Yes. We’re fully insured.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
What the job involves on each surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Why deal with it now?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. In a small place like Goodley Stock, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Why Goodley Stock customers choose us
- White, clear, grey or another colour, product permitting
- You choose the colour before work begins
- We’re fully insured
- 4.9 on Google from 180+ five-star reviews
Take a look at what affects the cost or what customers say.