Southend-on-Sea · England
Window Mastic in North Shoebury
Specialist window mastic for North Shoebury: careful preparation, the right product and tidy work. Call for a quick quote.
- Draughty joints inside around the window
- Hard, cracked sealant around windows
- Gaps left after new windows were fitted
About our window mastic in North Shoebury
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Common call-outs are for cracked or shrunken mastic around the frame and whistling draughts around closed windows, across timber windows & doors, patio & French doors and aluminium frames.
Homes around North Shoebury range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
All our work comes with a one-year guarantee, wherever you are in Southend-on-Sea.
- Place
- North Shoebury (SS3, SS1)
- Region
- Southend-on-Sea
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Window mastic in North Shoebury: local notes
North Shoebury is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. With historic houses such as Southchurch Hall (about 2.3 miles west) nearby, there’s older building stock in the area around North Shoebury as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like St George's Catholic Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Shoeburyness station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. In the older streets around Church of St Mary the Virgin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
North Shoebury is about 4 miles east of Southend-on-Sea, in Southend-on-Sea. Homes, rented property, offices and hotels in North Shoebury can book us for window mastic. Every job comes with our one-year guarantee. North Shoebury is one of 16 places in Southend-on-Sea we cover. For nearby work, see our Chelmsford page (19 miles or so).
All of SS3 and SS1 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Elm Road, Antrim Road and Bulwark Road or a nearby road, we can help. If you are just outside North Shoebury, we cover 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). Larger places within reach include 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).
Near you in North Shoebury
Locally, jobs take us to homes and businesses close to Parsons' Barn pub, Shoeburyness Old Ranges and Futures Community College, among other places. North Shoebury’s nearest station is Shoeburyness station, about 0.8 miles south-east. A little further out are Southend University Hospital (4.2 miles west) and Southend Historic Aircraft Museum (3.6 miles north-west). Green spaces nearby include Gunners Park and Shoebury Ranges.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Don’t paint over the silicone
- Do not aim a pressure washer at the joints
- Wash the frames with mild soapy water
- Walk round the house once a year and look at the joints
Try not to touch the new joint while it cures, for as long as we advise. Do not point a pressure washer at the joints.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
How the job changes by surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it without cracking.
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the sealant goes in between frame and wall.
Nearby places to North Shoebury
Other services in North Shoebury
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. It generally takes most of a day for a typical house, less for a few frames. A visit to North Shoebury is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.
Advice
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in North Shoebury and across Southend-on-Sea. Several sites can go on one quote, and we are fully insured.
If you manage several properties in or around North Shoebury, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
North Shoebury questions
Is window mastic in a coastal place like North Shoebury any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Will you come out to North Shoebury?
Yes. North Shoebury is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will resealing my frames help with draughts?
Often, yes. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
Does the work come with a guarantee?
Yes. Each job is covered for 12 months.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Do you take out the old sealant first?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Why act early in North Shoebury
A quick bead over the top of old mastic looks like an easy fix, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. 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.
Doing several joints on one visit normally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why North Shoebury clients choose us
- Sanitary silicone with an anti-fungal additive in wet areas
- Over 20 years’ experience
- We never seal over old sealant
- Tidy, careful work
See what affects the cost and customer reviews.
What we can’t put right
A few problems are outside what sealant work can do:
- Draughts through the window seals rather than the frame
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Faulty window hardware
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Aluminium frames
- Patio & French doors
- Window sills
- Timber windows & doors
- uPVC windows
- Composite doors
