Hampshire · England
Bedhampton External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Bedhampton and across Hampshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Failed sealant between panels on a façade
- Hard, crazed mastic that has stopped moving
- Brick movement joints where the sealant has split
Aftercare tips
A little care helps the new joints last. Our advice:
- Deal with leaking gutters that soak the joints below
- Point out the joints to other trades
- Have failed joints looked at early
- Ask before painting over external sealant
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years.
How we handle external mastic in Bedhampton
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. Common call-outs are for sealant pulling away from one side of the joint and moss and dirt in joints with no sealant left, on copings & trims, concrete & block and joints between brick and frames.
Homes around Bedhampton range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Your job is guaranteed for a year, as with all our work.
- Place
- Bedhampton (PO9)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Do you need external mastic in Bedhampton?
Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
It’s worth asking for a quote if you see:
- Rigid filler in a joint that should flex
- Leaking joints around cladding and façade panels
- Weathered mastic that no longer stretches
- Water getting into walls through failed joints
For landlords with property near Bedhampton station, outside joints that have cracked can let damp into a rental, so check them between lets.
Questions to ask before booking
- How much experience the applicator has
- Whether all the old sealant comes out first
- How hidden problems are handled
- Which colour the sealant will be
Quotes for external mastic in Bedhampton
Jobs vary more than people expect. The main factors:
- How many areas need sealing
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- Whether it has been sealed before
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
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.
How it works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. It generally takes anything from a few hours to several days, depending on the building. In a smaller place like Bedhampton, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
Getting a quote
For external mastic in Bedhampton, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
FAQs for Bedhampton
Can you help a landlord with a rental near Bedhampton station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Does living near the coast affect external mastic in Bedhampton?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Are you insured?
Yes. We are fully insured.
What is backing rod for?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
Do you come to Bedhampton?
Yes. We work in Bedhampton and the rest of Hampshire, as part of our work across South East England, London and Scotland. To book, call 0345 464 0079 or send us an email.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you guarantee your work?
Yes, for a year. If anything is not right with the work within the year, let us know and we’ll sort it.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
Surface by surface
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap.
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Places near Bedhampton
What else we do in Bedhampton
Why it’s worth doing now in Bedhampton
Sealing over the top of old mastic does not hold for long. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. In an older home around Bedhampton, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and send you a clear quote before any work starts.
Why Bedhampton customers choose us
- White, clear, grey or coloured to suit, where the product allows
- You choose the colour before work begins
- Fully insured
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced and our reviews.
What external mastic looks like in Bedhampton
Bedhampton is within about 1 mile of 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 movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Bidbury Junior School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around St Nicholas Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Bedhampton is about 1 mile south-west of Havant, in Hampshire. Whether you are in the middle of Bedhampton or further out, we cover external mastic for every kind of property. Bedhampton is one of 683 towns and villages in Hampshire we cover.
We work across the PO9 postcode area for external mastic. That includes homes and businesses on Palk Road, Knox Road and Mill Lane and the roads around them. Neighbouring places we cover for external mastic include Farlington (1 mile south-west), Purbrook (2 miles north-west), Drayton (2 miles west), Widley (2 miles west) and Waterlooville (2 miles north-west). Larger places within reach include Gosport (7 miles south-west), Fareham (8 miles west), Horndean (4 miles north), Hedge End (14 miles west), Petersfield (11 miles north) and Locks Heath (12 miles west).
What’s near Bedhampton
We work in homes and buildings around Havant College and The Golden Lion pub and the streets around them. Bedhampton has its own railway station: Bedhampton station. Other landmarks nearby include Warblington Castle (1.7 miles south-east) and Havant Museum (1.1 miles east). The countryside around Bedhampton includes Portsdown Hill and Southmoor Nature Reserve.
DIY versus a professional finish
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.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.