Essex · England
Sand Mastic in Good Easter
Problem with your window and door surrounds in Good Easter? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic in Good Easter, done properly
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. We work on sash and case windows, stone surrounds and tenement windows, and people most often call us about mastic that needs renewing before redecorating and modern sealant on a period surround.
Around Good Easter, 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.
There’s a 12-month guarantee on every job, large or small.
- Where
- Good Easter (CM1)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

What happens on the day
On the day, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere like Good Easter needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- 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.
Before we arrive
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Related advice
Frames and glazing around Good Easter
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St Andrew, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Good Easter is about 6 miles north-west of Chelmsford, in Essex. For sand mastic in and around Good Easter, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Essex from our Crawley base. Across Essex, we cover 644 places, and Good Easter is one of them. There’s also a page for Chelmsford, roughly 6 miles from Good Easter.
All of CM1 is within our area for sand mastic, from the main roads to the quietest streets. Streets in the area include Mill Road, Souther Cross Road and School Road. If you’re just outside Good Easter, we cover Chalk End (1 mile south), Mashbury (2 miles east), Margaret Roding (2 miles west), Leaden Roding (2 miles north-west) and Boyton Cross (2 miles south-east). Further out, we also cover Chelmsford (6 miles south-east), Basildon (15 miles south), Braintree (11 miles north-east), Harlow (10 miles west), Brentwood (11 miles south) and Maldon (14 miles east).
Landmarks near Good Easter
Well-known places in the area include Broomfield Hospital (4.7 miles east) and Willingale Doe (3 miles south-west).
Why it’s worth doing now in Good Easter
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Older cottages and farmhouses around Good Easter can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why Good Easter customers choose us
- ARBOMaster approved applicator
- Arbo and Everbuild products
- Old sealant always removed completely
- A 12-month guarantee on all work
Read how sealant jobs are priced or our reviews.
Work for landlords, hotels and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or won’t open
- Planning or listed building consent (your local planning authority decides)
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Tenement windows
- Sash and case windows
- Stone surrounds
- Brick reveals
- Period & listed homes
- Timber door frames
Towns and villages near Good Easter
What else we do in Good Easter
FAQs for Good Easter
Is Good Easter within the area you cover?
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.
Is Good Easter in your area for sand mastic?
Yes. We work across London and the South East, and Good Easter is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Can old silicone round a sash window be swapped for sand mastic?
Generally, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
What does sand mastic cost?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before we start.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic usually suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
Are you fully insured?
Yes, we are fully insured.
Do you need sand mastic in Good Easter?
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
The most common problems we see are:
- Draughts and rain around sash boxes
- Cement or filler used on old window joints that has cracked
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
In and around Good Easter, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Questions to ask before you book
- What insurance they hold
- Is VAT in the price?
- Whether they seal over old material or remove it
- How the colour is chosen
