Essex · England
Gutter Sealing in Harrowcross
Gutter sealing across Harrowcross and nearby, with old sealant always removed completely.
- Fascia boards with gaps between them
- Drips from gutter joints and end caps
- Dripping gutter ends
Gutter sealing in Harrowcross, done properly
Gaps along uPVC fascias and soffits look untidy and can let in water and draughts. We seal them in a colour to suit where one is available. Common call-outs are for drips from gutter joints and end caps and dripping gutter ends, on uPVC fascias, soffit joints and gutter end caps.
Outside joints can only be sealed when they’re dry, so work in Harrowcross is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
All of our work is guaranteed for twelve months, in Harrowcross and everywhere else we cover.

- Location
- Harrowcross (CO9)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Harrowcross
Is Harrowcross in your area for gutter sealing?
Yes. Our work covers London and the South East, and Harrowcross is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Is there a guarantee on gutter sealing in Harrowcross?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Can you fit new guttering?
That’s not something we do. We seal joints; replacing gutters and fascias needs a gutter or roofline installer.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Should I try DIY first?
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.
Can you seal fascia and soffit joints?
Yes. We seal open joints along fascias and soffits in a colour to suit.
Can new sealant go over the old?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Do you offer different sealant colours?
In most cases you can choose. We will explain which colours are available and agree one before work begins.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Hotels need rooms back in use, 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.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Keep downpipes clear
- Keep an eye out for wet patches below a joint
- Check fascia and soffit joints for gaps
- Clean out the gutters once or twice a year
Keep downpipes clear, so water can get away. A blocked pipe backs water up to the joints.
A drip from a gutter joint will not stop on its own. Water keeps hitting the same part of the wall, which can lead to staining and damp.
Quotes for gutter sealing in Harrowcross
There’s no set price list, because no two jobs are the same. The quote depends on:
- Any mould that needs treating
- When we can work, for business premises
- The size of the job
- Which sealant suits the joint
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Helping us quote
There’s no need for technical detail. Just tell us:
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- Where the job is, and your postcode
Need a quote? Please ring 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Gutter sealing in Harrowcross: local notes
Historic houses like Hedingham Castle (about 1.7 miles north-east) are a reminder that the area around Harrowcross has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Peter include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Harrowcross is about 3 miles north-west of Halstead, in Essex. Whether you are in the middle of Harrowcross or further out, gutter sealing is available for homes and businesses alike. Our Essex coverage runs to 644 places, Harrowcross among them. We also work in Chelmsford, about 17 miles from Harrowcross.
Every address in CO9 is within our area for gutter sealing. If you’re just outside Harrowcross, we cover Sible Hedingham (1 mile north-east), Almshouse Green (1 mile west), Castle Hedingham (2 miles north-east), Gosfield (3 miles south) and Beazley End (4 miles south-west). Further out, we also cover Colchester (15 miles east), Braintree (6 miles south), Witham (12 miles south), Saffron Walden (15 miles west), Camulodunum (14 miles south-east) and Halstead (3 miles south-east).
Around Harrowcross
In Harrowcross, that means homes and buildings near The White Lion pub and the streets around them. Other landmarks nearby include Hedingham Castle (1.7 miles north-east) and Halstead Hospital (3 miles south-east). Green spaces nearby include Belcher's and Broadfield Woods.
Surface by surface
Gutter joints
Joints between gutter lengths are the most common leak point. They’re cleaned out, dried and resealed.
Gutter end caps
End caps take the pressure of water running along the gutter. When their seal fails, they drip.
How it works
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes an hour or two for a few joints, longer for a full run for a typical job. In a small place like Harrowcross, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we find the drip and check the gutter is not cracked or sagging.
- Old sealant and dirt are removed from the joint.
- The area is dried so the sealant can bond.
- We seal the joint with a sealant made for gutters and outdoor use.
- The run is checked and any debris near the joints is cleared.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Let us know about stairs, lifts or work at height
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Read more
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, 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.
Do you need gutter sealing in Harrowcross?
Sealant on fascias and trims weathers like any outdoor joint. It goes hard, cracks and pulls away over time.
The most common problems we see are:
- Failed sealant on a garage door frame
- Dripping gutter ends
- Earlier gutter repairs that have peeled off
- Damp on an inside wall under a dripping gutter
If you look after a building such as Hedingham School and Sixth Form, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What your quote should include
- What the cure time is
- What guarantee comes with the work
- Which colour the sealant will be
- Which sealant they’ll use, and why
