Southend-on-Sea · England
Sand mastic for sash & case windows in North Shoebury, Southend-on-Sea
Sand mastic across North Shoebury and nearby, with every bit of old sealant taken out first.
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
- Window mastic to renew ahead of painting
Different surfaces, different methods
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Sand mastic for homes and businesses in North Shoebury
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. If you have gaps between timber frames and stone or brick and draughts and rain around sash boxes, we can help, on sash and case windows, period & listed homes and brick reveals alike.
In smaller places like North Shoebury, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
All our work is covered by our one-year guarantee, wherever you are in Southend-on-Sea.
- Where
- North Shoebury (SS3, SS1)
- Region
- Southend-on-Sea
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Make sure water runs off the sill
- Find out about consent before window work on a listed home
- Have rotten timber repaired before new mastic goes in
- Look over the window mastic once a year
Avoid painting over the new mastic, which is the traditional advice. If you are redecorating, ask us first.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Leave it or put it right?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it and traditional guidance is to leave the new mastic unpainted. In a smaller place like North Shoebury, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in North Shoebury
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
- A 12-month guarantee on all work
- We are fully insured
How the visit works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It usually takes a few hours per window, depending on the condition of the joints. For a job in North Shoebury, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Mention any sign-in or site rules at work premises
- Clear the area around the work
- Let us know about earlier repairs to the joints
Ask for a quote
We do not publish a price list. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Related advice
FAQs for North Shoebury
Is sand mastic in a coastal place like North Shoebury any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like North Shoebury?
Yes, North Shoebury is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you have insurance?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
How long does the job take?
A typical job takes a few hours for a single window, longer for several, including preparation and clearing up. Your quote will say how long we expect yours to take.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Quotes for sand mastic in North Shoebury
We don’t publish a price list. The quote depends on:
- Any mould that needs treating
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- When we can work, for business premises
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and give you a clear price.
Frames and glazing around North Shoebury
North Shoebury is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Southchurch Hall (about 2.3 miles west) are a reminder that the area around North Shoebury 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.
Rented homes near Shoeburyness station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. 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. 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.
North Shoebury is about 4 miles east of Southend-on-Sea, in Southend-on-Sea. Anywhere in SS3, our applicators can take on sand mastic. We cover 16 towns and villages across Southend-on-Sea. We also work in Chelmsford, around 19 miles away.
We work across SS3 and SS1 for sand mastic and the streets around it. If you need sand mastic at a property on Elm Road, Antrim Road and Bulwark Road or a nearby road, our applicators can take on the job. Close by, we work in Shoeburyness (1 mile south-east), Thorpe Bay (1 mile south-west), Little Wakering (1 mile north), Stonebridge (2 miles north-west) and Southchurch (2 miles west). Further out, we also cover Southend-on-Sea (4 miles west), Prittlewell (3 miles west), Leigh-on-Sea (6 miles west), Westcliff-on-Sea (4 miles west), Chalkwell (5 miles west) and Eastwood (5 miles west).
Local landmarks in North Shoebury
Around North Shoebury, our work takes us to homes and buildings near Parsons' Barn pub, Shoeburyness Old Ranges and Futures Community College and the streets around them. For rail, the closest station is Shoeburyness station, roughly 0.8 miles south-east of the centre. A little further out are Southend University Hospital (4.2 miles west) and Southend Historic Aircraft Museum (3.6 miles north-west). Open spaces near North Shoebury include Gunners Park and Shoebury Ranges.