Southend-on-Sea · England

Sand mastic for sash & case windows in Shoeburyness, Southend-on-Sea

Window and door surrounds in Shoeburyness need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Gaps where the frame meets the masonry
  • Mastic that needs renewing before redecorating
  • A silicone bead on a sash window that spoils the look

Sand mastic near Shoeburyness

When it is not the sealant

We will always be straight with you, so here’s what sealant can’t fix:

  • Masonry that needs repairing
  • Whether work needs listed building consent
  • Broken panes

Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.

Surfaces we seal

  • Stone surrounds
  • Tenement windows
  • Period & listed homes
  • Sash and case windows
  • Timber door frames
  • Brick reveals

Sand mastic for homes and businesses in Shoeburyness

We work across Shoeburyness renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. We work on timber door frames, brick reveals and period & listed homes, and people most often call us about silicone on a period window that looks wrong and mastic round period door frames that has failed.

Around Shoeburyness, many houses have gained conservatories, French doors or replacement windows over time. Every addition brings more joints, each wearing at its own pace. Leaks usually start at a sill, a frame head or a glazing joint.

Your job is guaranteed for a year, as with all our work.

Where
Shoeburyness (SS3, SS1)
Region
Southend-on-Sea
Guarantee
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What affects the cost of sand mastic

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

  • The number and length of the joints
  • How easy the joints are to reach
  • How many rooms, windows or areas are involved
  • Any working-time requirements on site

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.

Helping us quote

To make quoting easier, let us know:

  • Any previous sealing or DIY work
  • Where the job is, and your postcode
  • The rough size of the job
  • Pictures of the joints, sent by email

For sand mastic in Shoeburyness, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.

What happens on the day

Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and clear up. It generally takes a few hours for a single window, longer for several. A visit in Shoeburyness needs access to the work and a place to park close by. If the job is outside, mention gates, side access and anything above ground floor.

  1. First we agree which joints need doing.
  2. Old mastic and any loose material are raked out.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. We apply the mastic by hand and shape it.
  5. We dress the finish so it sits neatly against the masonry.

How to prepare

  • On commercial sites, let us know about site rules
  • Clear the area around the work
  • Keep pets and children clear of the area while we work

Get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.

Get a quick quote

Advice

Surface by surface

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.

Tenement and terrace windows

Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.

What sand mastic looks like in Shoeburyness

Shoeburyness is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Schools such as St George's Catholic Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Shoeburyness station, any sash windows need sound mastic to keep draughts and rain out.

Shoeburyness is about 4 miles east of Southend-on-Sea, in Southend-on-Sea. If you need sand mastic in Shoeburyness, please phone 0345 464 0079 or email us for a quick quote. We cover Southend-on-Sea from our Crawley base. Our Southend-on-Sea coverage runs to 16 places, Shoeburyness among them. You can also see our page for Chelmsford, roughly 19 miles from Shoeburyness.

Here we cover the SS3 and SS1 postcode area for sand mastic. We cover properties on High Street, Warrior Square Road and Church Road. Shoeburyness is on the B1017, which makes it straightforward to reach. Neighbouring places we cover for sand mastic include North Shoebury (1 mile north-west), Thorpe Bay (1 mile west), Little Wakering (2 miles north), Stonebridge (2 miles north-west) and Southchurch (2 miles west). Within a short drive, we also cover Southend-on-Sea (4 miles west), Prittlewell (4 miles west), Leigh-on-Sea (6 miles west), Westcliff-on-Sea (4 miles west), Chalkwell (5 miles west) and Eastwood (6 miles north-west).

Near you in Shoeburyness

Around Shoeburyness, our work takes us to homes and buildings near Shoeburyness Old Ranges, The Meadowlark pub and Shoeburyness High School. Shoeburyness’s nearest station is Shoeburyness station, about 0.5 miles south-east. Other landmarks nearby include Southend University Hospital (4.4 miles west) and Southend Historic Aircraft Museum (3.9 miles north-west). Not far away are Gunners Park and Shoebury Ranges.

Map of Shoeburyness © OpenStreetMap contributors

FAQs for Shoeburyness

Is sand mastic in a coastal place like Shoeburyness any different?

Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.

Is Shoeburyness in your area for sand mastic?

Yes. Our work covers London and the South East, and Shoeburyness is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.

Can old silicone round a sash window be swapped for sand mastic?

Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.

Is it worth trying it myself?

That depends on the joint. 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 an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

Is there any odour?

There can be a smell while the sealant cures. Opening a window helps.

Where do you work from?

Mr Mastic is based in Crawley. Our applicators cover Shoeburyness, along with the rest of our area.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.

Common problems we fix in Shoeburyness

Shallow joints are a common cause. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.

Keep an eye out for any of the following:

  • Open joints round the window box
  • Draughty sash windows at the surround
  • Mastic dropping out of the joint
  • Mastic worn away on windows facing the weather

For an older house near a landmark such as Church of St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What to look for in a quote

  • Whether you can choose the colour
  • Whether VAT is included
  • How the joint is cleaned and prepared
  • Are they insured?

Our hiring checklist

Can I do it myself?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

How to look after the new joints

Looking after new joints is easy, and it makes a real difference:

  • Find out about consent before window work on a listed home
  • Look over the window mastic once a year
  • Don’t paint over the new mastic
  • Renew mastic before redecorating the windows

Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.

Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job