Kent · England
Gold Street Sand Mastic
Sand mastic for Gold Street, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Patchy fillers round a sash window
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
How we handle sand mastic in Gold Street
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you are dealing with cracked mastic round a front door frame and modern sealant on a period surround, we can help, on tenement windows, timber door frames and period & listed homes alike.
In a village or hamlet like Gold Street, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Gold Street (DA12)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
When it isn’t the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Masonry that needs repairing
- Timber that has rotted
- Sash cords, weights and draught-proofing of the sashes
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
What we’re called out for in Gold Street
Sand mastic slowly weathers. It dries out, cracks and loses its grip on the stone or timber.
Signs it’s time to call us include:
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
- Gaps where the frame meets the masonry
- Silicone on a period window that looks wrong
Schools such as Cobham Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Which colour the sealant will be
- Which sealant they’ll use, and why
- Whether VAT is included
- How long to leave it before use
Aftercare tips
So the new joints stay in good condition:
- Clear gutters so water does not pour onto the windows
- Ask us before painting near the mastic
- Check with your local planning authority if your home is listed
- Look over the window mastic once a year
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours per window, depending on the condition of the joints, and the area is left clean. In a small place like Gold Street, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- 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
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
Get a quote
If you’re in Gold Street and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Quotes for sand mastic in Gold Street
For a quick quote, just ask. The main things that affect it are:
- Whether the work is at height
- The product the joint needs
- How many rooms, windows or areas are involved
- The size of the job
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Photos by email, if that’s easy
- Whether it has been sealed before
- The problem you’ve noticed
- The rough size of the job
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we’ll take it from there.
Also near Gold Street
Other services in Gold Street
Different surfaces, different methods
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is usually favoured.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Leave it or put it right?
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. Where a wall is exposed, as many are in small places like Gold Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Gold Street
- We’re fully insured
- Old sealant always removed completely
- Quality sealants from Arbo and Everbuild
- 4.9 on Google from 180+ five-star reviews
Take a look at our cost guide and what customers say.
Gold Street homes and the weather
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Cobham College (about 0.6 miles north-east) nearby, there’s older building stock in the area around Gold Street as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to St Mary's Room include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you let a flat or house near Sole Street station, any sash windows need sound mastic to keep draughts and rain out.
Gold Street is about 3 miles south of Gravesend, in Kent. Homes, rented property, offices and hotels in Gold Street can book us for sand mastic. Every job comes with our one-year guarantee. 922 places in Kent are on our list. We also work in London, about 22 miles from Gold Street.
All of DA12 is within our area for sand mastic, from the main roads to the quietest streets. Other places close to Gold Street include Sole Street (1 mile west), Round Street (1 mile north-west), Henley Street (1 mile south-east), Luddesdown (1 mile south-east) and Meopham (1 mile south-west). Within a short drive, we also cover Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).
What’s near Gold Street
Locally, jobs take us to homes and businesses close to The Railway Inn, Camer Park Country Park and Meopham School, among other places. There’s a railway station in Gold Street itself: Sole Street station. Other landmarks nearby include Gravesham Community Hospital (4 miles north) and Gravesham Museum (3.9 miles north). Not far away are Gad's Hill and Ranscombe Farm.
Your questions about sand mastic in Gold Street
Is Gold Street in your area for sand mastic?
Yes, Gold Street is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Gold Street?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Is it possible to take out silicone and use sand mastic instead?
Often, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
Is the work guaranteed?
Our 12-month guarantee applies on every job.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like, but they decide.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.