Hertfordshire · England
External & façade joints in Bedmond, Hertfordshire
Problem with your movement joints in Bedmond? We remove the old material, prepare the joints and seal them properly.
- Failed seals between different materials
- Brick movement joints where the sealant has split
- Joints pointed up with cement by mistake
How it works
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. In a small place like Bedmond, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and send you a clear quote.
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How we handle external mastic in Bedmond
On houses, flats and commercial buildings across Bedmond, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. If you have movement joints filled with mortar instead of sealant and plants rooting in failed movement joints, we can put it right, on joints between brick and frames, façade panels and render & cladding joints alike.
Outside joints can only be sealed when they’re dry, so work in Bedmond is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or drop us an email.
- Place
- Bedmond (WD5)
- Wider area
- Hertfordshire
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
External mastic in Bedmond: local notes
With historic houses such as High Elms Manor (about 1.5 miles south-east) nearby, there’s older building stock in the area around Bedmond as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
For landlords with property near Kings Langley station, outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Bedmond Academy, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Bedmond is about 3 miles south-east of Hemel Hempstead, in Hertfordshire. Jobs in Bedmond get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 381 places across Hertfordshire, large and small. You can also see our page for London, roughly 20 miles from Bedmond.
Work in WD5 is quoted and booked the same way as anywhere else. External mastic is available to properties on High Street, Woodland Way and Bluebell Drive and the roads around them. We also cover the places around Bedmond: Pimlico (1 mile north), Abbots Langley (1 mile south), Kings Langley (2 miles west), Nash Mills (2 miles west) and Westwick Row (2 miles north). Further out, we also cover Watford (4 miles south), Hemel Hempstead (3 miles north-west), St Albans (4 miles north-east), Welwyn Garden City (11 miles north-east), Harpenden (7 miles north) and Cheshunt (15 miles east).
Near you in Bedmond
Around Bedmond, our work takes us to homes and buildings near Parmiter's School and The Bell Public House, among other places. The nearest railway station is Kings Langley station, about 1.6 miles south-west. Nearby you will also find Hypocaust Museum (3 miles north-east) and Village Arcade St Albans (3.7 miles north-east). For a walk, there’s Verulamium Lake and Longspring Wood.
When to call us in Bedmond
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
The problems people normally mention when they call include:
- Hard, crazed mastic that has stopped moving
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
- Weeds or debris growing in open joints
For an older house near a landmark such as Church of the Ascension, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before booking
- What the cure time is
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- Whether you can choose the colour
Your questions about external mastic in Bedmond
Is Bedmond within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Bedmond in your area for external mastic?
Yes, Bedmond is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Is it OK to fill a movement joint with cement?
No, not if it’s a movement joint. Pointing it stops it working. A flexible sealant is the right fill.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
Surface by surface
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that’s happened, we rake it out and reseal it properly where it can be done safely.
What affects the cost of external mastic
You’ll get a clear quote before any work starts. It’s based on:
- How much old sealant there is and how hard it is to remove
- The amount of work
- The number of rooms or windows
- Whether there’s mould to deal with
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Helping us quote
To make quoting easier, please include:
- Whether it’s a home or a business
- A few photos by email, if you can
- Any previous sealing or DIY work
- 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, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or drop us an email.
Nearby places to Bedmond
What else we do in Bedmond
Why it’s worth doing now in Bedmond
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and does not last. Older cottages and farmhouses around Bedmond can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why choose Mr Mastic in Bedmond
- Trusted Arbo and Everbuild sealants
- Domestic, commercial and hotel work
- You choose the colour before work begins
- Fully insured
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Should I try it myself first?
A careful DIYer can reseal a simple joint, 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.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.