Essex · England
Shellow Bowells Window Mastic
Our applicators work in Shellow Bowells on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
- Sealant in the wrong colour for the frame
How we handle window mastic in Shellow Bowells
Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you have cracked or shrunken mastic around the frame and mastic that’s falling out in pieces, we can help, whatever the surface.
Around Shellow Bowells, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
The work is covered for a year after we finish. If anything is not right with it, phone 0345 464 0079 or email us.

- Where
- Shellow Bowells (CM5)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we can’t put right
We will always be straight with you, so here’s what sealant can’t fix:
- Penetrating damp from a failed cavity tray or render
- A door that needs adjusting, rehanging or new seals
- A sash or casement that won’t close properly
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Shellow Bowells
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- Window sills
- uPVC windows
- Composite doors
What we are called out for in Shellow Bowells
On timber frames, paint and putty build up around the joint. 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:
- Gaps left after new windows were fitted
- White mastic on grey or black frames
- Gaps where the sill meets the wall
- Cold air getting in at the frame edge
Homes close to Church of St Peter and St Paul include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Whether the sealant suits the joint
- Which colour the sealant will be
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
Common questions in Shellow Bowells
Do you cover smaller places like Shellow Bowells?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do window mastic in Shellow Bowells?
Yes. Our work covers London and the South East, and Shellow Bowells is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
What do you need from me for a quote?
Let us know what needs doing and where, with photos by email if possible. We will ask anything else we need to know.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
How do I get a quote for window mastic in Shellow Bowells?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or drop us an email and let us know what needs doing and where.
Windows and doors in Shellow Bowells
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Shellow Bowells, as everywhere, window mastic is only as good as the preparation behind it.
Shellow Bowells is about 7 miles west of Chelmsford, in Essex. For window mastic in and around Shellow Bowells, please phone 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Essex. Shellow Bowells is one of 644 towns and villages in Essex we cover for window mastic. We also work in Chelmsford, around 7 miles away.
We cover every part of the CM5 postcode area for window mastic and the streets around it. Other places close to Shellow Bowells include Willingale (1 mile west), Berners Roding (1 mile west), Radley Green (2 miles south), Chalk End (2 miles north-east) and Roxwell (2 miles east). Within a short drive, we also cover Chelmsford (7 miles east), Basildon (13 miles south-east), Braintree (14 miles north-east), Harlow (9 miles west), Brentwood (8 miles south) and Maldon (15 miles east).
Local landmarks in Shellow Bowells
Other landmarks nearby include Willingale Doe (0.7 miles west) and Chelmsford and Essex Hospital (5.7 miles east).
Also near Shellow Bowells
Other services in Shellow Bowells
Quotes for window mastic in Shellow Bowells
For a quick quote, just ask. The main things that affect it are:
- Mould in or behind the old joints
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- Photos by email, if that is easy
- The rough size of the job
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Work for landlords, hotels and businesses
For anyone letting property in or around Shellow Bowells, several properties can go on one quote. Send us the addresses and the work at each.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Surface by surface
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We’ll point out any rot we find, as a joiner will need to deal with it.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the sealant goes in between frame and wall and tooled smooth.
How the visit works
On the day, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work usually takes most of a day for a typical house, less for a few frames. Somewhere as small as Shellow Bowells, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
How to 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, phone 0345 464 0079 or drop us an email.
Read more
What happens if it’s left?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. In a small place like Shellow Bowells, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Why us?
- We leave the area clean and tidy
- Fully insured
- ARBOMaster approved applicator
- A sealant colour to suit the surroundings
See what affects the cost and our reviews.
