South East England and London

Sand Mastic in Essex

Wherever you are in Essex, our applicators can help with sand mastic. A clear quote before we start, and a one-year guarantee.

Need sand mastic in Essex?

Call 0345 464 0079

Get a quick quote

Sand mastic across Essex

Traditional burnt sand mastic around sash and case windows and doors in stone and brick. Pick your town below to see the details for your area, and get in touch for a quick quote.

Biggest towns in Essex

Sand mastic in Essex: how it works

Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on timber door frames, period & listed homes and stone surrounds, and people most often call us about cement or filler used on old window joints that has cracked and draughts and rain around sash boxes.

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours per window, depending on the condition of the joints.

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.
The surface is finished to suit the stone or brick.

How we quote

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. Ask us for a quote and we’ll explain what it covers.

Why choose Mr Mastic

Neat joints and a tidy finish
Sanitary silicone with an anti-fungal additive in wet areas
We are fully insured
Experience in homes, commercial sites and hotels

Get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or drop us an email.

What’s near Colchester

Typical jobs here are in homes near Church of St Peter, Bull Meadow and The Bay And Say Public House and the streets around them. You will also find Colchester Sixth Form College (under half a mile north-west) and St John's Green Primary School (less than half a mile south). Colchester has its own railway station: Colchester Town station. A little further out are Lion Walk (under half a mile south-east) and Essex County Hospital (less than half a mile south-west). Open spaces near Colchester include Westhouse Wood.

Windows and doors across Essex

Essex has everything from older homes with timber frames to newer ones with uPVC. Exposed walls are where window sealant generally fails first, wherever they are in Essex.

The South East is one of the drier parts of the UK, though outside sealant still needs a dry, clean joint, so work across Essex is planned around the weather. Along the coast in Essex, window and wall joints facing the sea take the brunt of the weather, so they’re often the first to fail. The right product and careful preparation help it last.

Colchester: If you let a flat or house near Colchester Town station, any sash windows need sound mastic to keep draughts and rain out. For an older house near a landmark such as Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

What sealant work can’t fix

Some problems need a builder, plumber or other trade rather than us:

Sash cords, weights and draught-proofing of the sashes
Damaged stone surrounds
Whether work needs listed building consent

DIY versus a professional finish

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

Why it fails

Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.

These are the problems we’re asked about most:

Draughty sash windows at the surround
Window mastic to renew ahead of painting
Mastic round period door frames that has failed
Open joints round the window box

How to look after the new joints

No joint lasts for ever, but care makes a real difference. A few tips:

Have rotten timber repaired before new mastic goes in
Leave the new mastic unpainted
Inspect the joints round the windows every year or so
Keep modern sealant off the mastic

When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.

Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.

What affects the quote in Essex

The price is agreed before any work begins. It takes into account:

The amount of work
Mould in or behind the old joints
Any working-time requirements on site
How many rooms, windows or areas are involved

Leaving a failed joint normally makes the job bigger, not smaller. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.

Asking for a quote

When you contact us, these details help:

The type of property
Any previous sealing or DIY work
The rough size of the job
What the problem is, such as mould, gaps, leaks or cracking

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.

FAQs for Essex

What do you need from me for a quote?

A short description and the location, with pictures by email if possible. If we need more, we’ll ask.

Do you work for letting agents?

Yes. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.

Do you come to Essex?

Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Essex.

Do you remove the old sealant?

Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.

How long does sand mastic take to go off?

The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area.

Can you match the sealant colour?

We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.