Greater London · England
Sand Mastic in Enfield Lock
Our applicators work in Enfield Lock on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Gaps between timber frames and stone or brick
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
Windows and doors in Enfield Lock
Historic houses like Forty Hall (about 1.8 miles west) are a reminder that the area around Enfield Lock has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.
As a London address, Enfield Lock can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For landlords with property near Enfield Lock station, older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Ss Peter and Paul 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.
Enfield Lock is about 2 miles south-west of Waltham Abbey, in Greater London. Whether you are in the middle of Enfield Lock or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 764 places in Greater London are on our list, from the larger towns to small villages. There’s also a page for London, about 12 miles away.
Our applicators cover all of the EN3 postcode area for sand mastic. If you need sand mastic at a property on Bell Lane, Park Road and Albany Road or anywhere close by, we can help. We also cover the places around Enfield Lock: Enfield Island Village (1 mile east), Freezywater (1 mile north), Enfield Wash (1 mile west), Brimsdown (1 mile south) and Enfield Highway (1 mile south-west). We also work in nearby towns such as London (12 miles south), City of Westminster (12 miles south-west), Marylebone (12 miles south-west), Kensington (14 miles south-west), St Pancras (11 miles south) and Shoreditch (10 miles south).
Local landmarks in Enfield Lock
We work in homes and buildings around Aylands School, Gunpowder Park and Oasis Academy Enfield, among other places. Enfield Lock has its own railway station: Enfield Lock station. A little further out are Museum of Enfield (2.6 miles south-west) and St Michaels Hospital (2.5 miles west). Not far away are Lippitts Hill and Bowyer's Water.
Sand mastic in Enfield Lock, done properly
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We’re often asked to deal with gaps round a timber door in stone or brick and weathered mastic on the most exposed windows, across period & listed homes, sash and case windows and timber door frames.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Enfield Lock.
Every job is covered by a 12-month guarantee, wherever you are in Greater London.
- Where
- Enfield Lock (EN3)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Leave it or put it right?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in and new mastic seals them. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
What you get with us
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- More than 20 years in sealant work
- We never seal over old sealant
See our cost guide and what customers say.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We work for landlords and letting agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
When it is not the sealant
Before booking, it’s worth knowing the limits too:
- Damaged stone surrounds
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or won’t open
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Stone surrounds
- Brick reveals
- Period & listed homes
- Timber door frames
- Tenement windows
- Sash and case windows
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
- Ask us before painting near the mastic
- Get any rot dealt with first
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Questions from Enfield Lock
Is parking a problem for a job in Enfield Lock?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Can you help a landlord with a rental near Enfield Lock station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Should I check with the council before work on a listed or conservation-area home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
What guarantee comes with the work?
You get our one-year guarantee to all our work.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses.
When will the new mastic be hard?
It skins over fairly quickly but takes longer to harden fully. We’ll tell you what to expect for your job.
How it works
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. The work normally takes a few hours for a single window, longer for several. For a job in Enfield Lock, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- 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
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
Getting a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before we start.
Advice
Places near Enfield Lock
Also in Enfield Lock
What affects the cost of sand mastic
Your quote is based on your job. We look at:
- Mould in or behind the old joints
- The product the joint needs
- When we can work, for business premises
- Whether the work is at height
Doing several joints on one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- What’s wrong with the joints now
- How we’d reach the joints
- The rough size of the job
- If it’s domestic, commercial or a hotel
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, ring 0345 464 0079 or send us an email.
What the job involves on each surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
