Essex · England
Sand mastic for sash & case windows in Jack's Hatch, Essex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Jack's Hatch. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic dropping out of the joint
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
About our sand mastic in Jack's Hatch
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. We work on sash and case windows, period & listed homes and tenement windows, and people most often call us about weathered mastic on the most exposed windows and modern sealant on a period surround.
Around Jack's Hatch, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Jack's Hatch (CM16)
- Wider area
- Essex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Jack's Hatch
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
Places near Jack's Hatch
What else we do in Jack's Hatch
Surface by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
Why it’s worth doing now in Jack's Hatch
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry so renewing it early protects the window. Where a wall is exposed, as many are in small places like Jack's Hatch, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Jack's Hatch
- Old sealant always removed completely
- Sanitary silicone with an anti-fungal additive in wet areas
- ARBOMaster approved applicator
- One-year guarantee on every job
Read how sealant jobs are priced and customer reviews.
What sealant work cannot fix
Before you book, it’s worth knowing the limits too:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
- Cracked or broken glass
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Period & listed homes
- Timber door frames
- Tenement windows
- Sash and case windows
- Brick reveals
- Stone surrounds
Questions from Jack's Hatch
Is Jack's Hatch within the area you cover?
Yes, Jack's Hatch is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Jack's Hatch in your area for sand mastic?
Yes, Jack's Hatch is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Are you insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
Do you work for letting agents?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Can tenants book the work?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Is the work guaranteed?
All our work has a one-year guarantee, and we are fully insured.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
What we’re called out for in Jack's Hatch
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
Signs it’s time to call us include:
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
Letting a property close to Roydon station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- Whether you can choose the colour
- What preparation is included
- How long the guarantee is
- How long to leave it before use
How we quote for sand mastic
We quote each job individually. This is what makes a difference:
- Whether the work is at height
- Which sealant suits the joint
- The amount of work
- Any working-time requirements on site
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
What we need to know
When you call or email, these details help:
- The type of property
- A few photos by email, if you can
- The address or postcode of the job
- How we’d reach the joints
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
How it works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work generally takes anything from a few hours to a full day, depending on how many windows. In a small place like Jack's Hatch, access is usually 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.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Clear items away from the joints we’re working on
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Frames and glazing around Jack's Hatch
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.
Managing a site like Water Lane Primary Academy? Then larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as St James with St Luke, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Jack's Hatch is about 3 miles south-west of Harlow, in Essex. Our applicators cover sand mastic for householders, landlords and businesses in Jack's Hatch, as part of our work across Essex. We cover 644 towns and villages across Essex, large and small. For nearby work, see our London page.
Our applicators cover all of CM16 for sand mastic. Jack's Hatch is on the B181, which makes it straightforward to reach with everything needed for sand mastic. Other places close to Jack's Hatch include Broadley Common (1 mile west), Epping Green (1 mile south), Tylerscross (1 mile north-west), Staple Tye (1 mile north-east) and Great Parndon (1 mile north). We also work in nearby towns such as Harlow (3 miles north-east), Brentwood (13 miles south-east), Loughton (6 miles south), Waltham Abbey (5 miles south-west), Great Dunmow (15 miles north-east) and Epping (3 miles south-east).
Around Jack's Hatch
Around Jack's Hatch, our work takes us to homes and buildings near Travellers Friend pub, Nazeing Triangle and Stewards School, among other places. The nearest railway station is Roydon station, about 3 miles north-west of the centre. Well-known places in the area include Harlow Mill (4.1 miles north-east) and Nazeing Glass Museum (3.3 miles west). The countryside around Jack's Hatch includes Cheshunt Lake and Hunsdon Mead.