Kent · England
Sand Mastic in Temple Hill
Our applicators work in Temple Hill on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
Different surfaces, different methods
Stone surrounds
The stone is treated with care while raking out the old mastic.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.
About our sand mastic in Temple Hill
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. If you have draughts and rain around sash boxes and gaps where the frame meets the masonry, we can put it right, on tenement windows, timber door frames and sash and case windows alike.
Around Temple Hill, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.
Every job comes with a 12-month guarantee, wherever you are in Kent.
- Place
- Temple Hill (DA1, DA2, DA5)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. In a smaller place like Temple Hill, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Why book with us
- Full insurance on every job
- Every job guaranteed for a year
- Sanitary silicone with an anti-fungal additive in wet areas
- Arbo and Everbuild products
Read what affects the cost or customer reviews.
The process
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours per window, depending on the condition of the joints. A visit to Temple Hill is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
Getting a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Advice
How we quote for sand mastic
The price is agreed before any work begins. It’s based on:
- How many areas need sealing
- The product the joint needs
- Access and height
- The old material and how stubborn it is
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
- Where the job is, and your postcode
- The problem you’ve noticed
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Frames and glazing around Temple Hill
Historic houses like Hall Place and Gardens (about 2.8 miles west) are a reminder that the area around Temple Hill has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
Letting a property close to Dartford station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Temple Hill Primary Academy, the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near St Edmunds Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Temple Hill is about 1 mile north of Dartford, in Kent. If you need sand mastic in Temple Hill, please phone 0345 464 0079 or email us for a quick quote. We cover Kent from our Crawley base, Temple Hill included. 922 places in Kent are on our list, large and small. London is on our list too, about 14 miles from Temple Hill.
Every address in DA1, DA2 and DA5 is covered for sand mastic. We cover properties on Kent Road, Keyes Road and Bayly Road. Main roads around Temple Hill include the A226. We also cover Dartford (1 mile south), Hawley (2 miles south), Stone (2 miles east), Darenth (2 miles south-east) and Greenhithe (2 miles east). We also work in nearby towns such as Sevenoaks (12 miles south), Gravesend (7 miles east), Northfleet (5 miles east), Swanley (4 miles south-west), Kings Hill (15 miles south-east) and Swanscombe (3 miles east).
Landmarks near Temple Hill
We work in homes and buildings around Central Park, The Leigh UTC and Stone Lodge School, among other places. Temple Hill has its own railway station: Dartford station. Nearby you will also find Stone Castle (2.3 miles east) and Bluewater (2.1 miles east). Open spaces near Temple Hill include Wansunt Pit and Sawyers Lake.
Places near Temple Hill
What else we do in Temple Hill
Honest limits
It helps to know what we can’t do:
- Sashes that need overhauling
- Broken panes
- Damaged stone surrounds
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Where we work in Temple Hill
- Stone surrounds
- Tenement windows
- Period & listed homes
- Brick reveals
- Sash and case windows
- Timber door frames
FAQs for Temple Hill
Do you work for landlords with property near Dartford station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Is Temple Hill within the area you cover?
Yes, Temple Hill is covered. 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.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Should I use sand mastic or silicone?
Sand mastic normally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Letting agents and landlords in Temple Hill can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Avoid heavy scraping on the mastic joint
- Renew mastic before redecorating the windows
- Leave the new mastic unpainted
- Check with your local planning authority if your home is listed
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.