Hertfordshire · England
External & façade joints in Hoddesdon, Hertfordshire
Movement joints in Hoddesdon need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Panel joints letting water in
- Moss and dirt in joints with no sealant left
- Weathered mastic that no longer stretches
External mastic for homes and businesses in Hoddesdon
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. We work on joints between brick and frames, brickwork movement joints and concrete & block, and common reasons people get in touch are hard, crazed mastic that has stopped moving and joints with sealant missing in places.
Around Hoddesdon, outside jobs take in garage door frames, porches, gutters and trims as well as walls. Each joint between different materials moves in its own way, so the sealant has to cope with that.
All our work is covered by a 12-month guarantee.
- Location
- Hoddesdon (EN11, EN10, EN8, SG12)
- Wider area
- Hertfordshire
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours to a few days, depending on the length of joint and the access from start to finish. A visit in Hoddesdon needs access to the work and a place to park close by. For outside work, let us know about side access, gates and any upper-floor joints.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Mention any parking rules near the property
- Tell us about any water getting in
- Mention any tricky access
Ask for a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Point out the joints to other trades
- Clear growth from the base of walls and joints
- Never let anyone fill a movement joint with mortar
- Ask before painting over external sealant
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal before water has had years to get in.
Towns and villages near Hoddesdon
What else we do in Hoddesdon
Common questions in Hoddesdon
I let a flat near Broxbourne station. Can you help?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Is external mastic in Hoddesdon guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Can you reach joints on upper floors?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher work, tell us about the building and we’ll confirm what’s needed.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Where are you based?
We work from Crawley. We cover Hoddesdon and the rest of Hertfordshire, along with the rest of our area.
How long does external mastic last?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Landlords, agents and businesses in Hoddesdon
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
For anyone letting property in or around Hoddesdon, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
What affects the cost of external mastic
The quote reflects the job in front of us. We look at:
- Whether there’s mould to deal with
- The number and length of the joints
- The old material and how stubborn it is
- Which sealant suits the joint
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
Photos help, but a description is a good start. Please mention:
- If someone has resealed it before
- Whether it’s a home or a business
- What’s wrong with the joints now
- Where the job is, and your postcode
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or email us.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Hoddesdon buildings and the weather
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.
Homes close to Church of St Catherine & St Paul include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. If you look after a building such as Sheredes School, its movement joints, gutters and trims need looking after like any other building’s. For landlords with property near Broxbourne station, split movement joints are easy to miss on a rental until damp shows inside.
Hoddesdon is about 13 miles south-east of Stevenage, in Hertfordshire. Hoddesdon gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 381 places across Hertfordshire. London is on our list too, around 18 miles away.
Every address in EN11, EN10, EN8 and SG12 is within our area for external mastic. Streets in the area include High Street, Station Road and London Road. Hoddesdon is on the A10 and B176, which makes it straightforward to reach with everything needed for external mastic. Nearby, we also carry out external mastic in Broxbourne (1 mile south-west), High Leigh (1 mile north-west), Woollensbrook (1 mile north-west), Goose Green (1 mile north-west) and Wormley (2 miles south). Within a short drive, we also cover Stevenage (13 miles north-west), St Albans (13 miles west), Bishop's Stortford (11 miles north-east), Welwyn Garden City (8 miles west), Harpenden (15 miles west) and Cheshunt (3 miles south-west). Hoddesdon is one of the larger places we cover in Hertfordshire.
Landmarks near Hoddesdon
We work in homes and buildings around Barclay Park, The Golden Lion Inn and St Cross Catholic Primary School. The closest station to Hoddesdon is Broxbourne station, roughly 0.6 miles south-east of the centre. Well-known places in the area include Hertford County Hospital (4.2 miles north-west) and Barrowfield (3.4 miles north-west). Open spaces near Hoddesdon include Danemead and Cheshunt Lake.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Cracks in the bricks or render themselves, away from the joints
- Structural movement, which needs a surveyor or engineer
- Damp that is not coming from the joint
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Render & cladding joints
- Concrete & block
- Copings & trims
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
Why it’s worth doing now in Hoddesdon
Resealing a run of joints in one go is generally better than patching one at a time. Joints of the same age tend to fail together. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and early is when they’re cheapest and quickest to sort.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Why Hoddesdon clients choose us
- A 12-month guarantee on all work
- Experience in homes, commercial sites and hotels
- Sealant colour chosen to suit
- You choose the colour before work begins
See what affects the cost and our reviews.