Essex · England
Window & door mastic in Wix, Essex
Our applicators work in Wix on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Gaps left after new windows were fitted
- Old mastic that has gone black or come away
- Cracked or shrunken mastic around the frame
Window mastic in Wix, done properly
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We’re often asked to deal with sealant in the wrong colour for the frame and cracked internal joints between frame and plaster, across aluminium frames, patio & French doors and timber windows & doors.
Outdoor sealant needs dry, clean surfaces, so work on frames around Wix is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Place
- Wix (CO11)
- Region
- Essex
- Cover
- One year on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What window mastic looks like in Wix
Wix is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Historic houses like Thorpe Hall (about 4.3 miles south) are a reminder that the area around Wix has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as Wix and Wrabness Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Wix is about 5 miles west of Harwich, in Essex. We carry out window mastic for homes and businesses in Wix and nearby, as part of our work across Essex. Across Essex, we cover 644 places, and Wix is one of them. Chelmsford is on our list too, about 30 miles from Wix.
Here we cover the CO11 postcode area for window mastic. If you need window mastic at a property on Hunters Court, Colchester Road and Harwich Road or anywhere close by, our applicators can take on the job. We also cover the places around Wix: Wix Green (1 mile east), Bradfield (2 miles north-west), Bradfield Heath (2 miles north-west), Great Oakley (2 miles east) and Wrabness (2 miles north-east). Within a short drive, we also cover Colchester (10 miles west), Clacton-on-Sea (8 miles south), Harwich (5 miles east), Camulodunum (12 miles west), Greenstead (9 miles west) and Wivenhoe (8 miles south-west).
Landmarks near Wix
Locally, jobs take us to homes and businesses close to The White Hart Inn. Wix’s nearest station is Wrabness station, roughly 2.3 miles north-east of the centre. For a walk, there’s Oakfield Wood and Alton Water.
When to call us in Wix
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
It’s worth asking for a quote if you see:
- Whistling draughts around closed windows
- Cracked or shrunken mastic around the frame
- Cracked internal joints between frame and plaster
- Sealant in the wrong colour for the frame
For landlords with property near Wrabness station, renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Whether they seal over old material or remove it
- What happens if they find a problem under the old sealant
- How long to leave it before use
- How long the guarantee is
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Keep drainage slots and sill grooves clear
- Ventilate rooms so frames do not stay wet inside
- Walk round the house once a year and look at the joints
- Paint up to the joint, not over it
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Why act early in Wix
Resealing frames is a short job: it takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. In a small place like Wix, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.
Why Wix customers choose us
- A choice of colours where the product allows
- Experience in homes, commercial sites and hotels
- Full insurance on every job
- Colour agreed with you before any work starts
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a morning for a couple of windows and a door and we leave things clean and tidy. For a village or hamlet like Wix, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Let us know about parking restrictions
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
How to get a quote
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
Related advice
Wix questions
Can you help a landlord with a rental near Wrabness station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Is Wix within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will explain our choice.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Where are you based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
Can you do several jobs on one visit?
Of course. Doing several areas at once is usually more efficient.
Do you have sealant for grey or black windows?
Yes, in most cases. Tell us the frame colour when you get in touch and we will use the nearest match.
What the job involves on each surface
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We will point out any rot we find, as a joiner will need to deal with it.
Nearby places to Wix
What else we do in Wix
Landlord and commercial work in Wix
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Letting agents and landlords in Wix can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
