Hampshire · England
North Baddesley External Mastic
External mastic for North Baddesley and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Leaking joints around cladding and façade panels
- Brick movement joints where the sealant has split
- Hard, crazed mastic that has stopped moving
How we handle external mastic in North Baddesley
On houses, flats and commercial buildings across North Baddesley, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We are often asked to deal with joints with sealant missing in places and water getting into walls through failed joints, on concrete & block, brickwork movement joints and joints between brick and frames.
Outbuildings, garages and conservatories around homes in places like North Baddesley add more joints to look after. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
Whatever the size of the job, you get the same one-year guarantee.
- Place
- North Baddesley (SO52)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Outside joints around North Baddesley
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. With historic houses such as South Stoneham House (about 4.1 miles south-east) nearby, there’s older building stock in the area around North Baddesley 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.
For site and facilities teams at buildings such as North Baddesley Junior School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to All Saints include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
North Baddesley is about 2 miles south-east of Romsey, in Hampshire. Jobs in North Baddesley get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Hampshire coverage runs to 683 places, North Baddesley among them.
We work across the SO52 postcode area for external mastic and the streets around it. Whether your property is on Firgrove Close, Rosslyn Close and Upper Crescent Road or anywhere close by, we can help. Close by, we work in Toothill (1 mile south-west), Chilworth Old Village (1 mile south-east), Ashfield (2 miles south-west), Romsey (2 miles north-west) and Rownhams (2 miles south). We also work in nearby towns such as Winchester (8 miles north-east), Eastleigh (4 miles east), Fareham (14 miles south-east), Totton (5 miles south-west), Chandler's Ford (3 miles east) and Hedge End (8 miles south-east).
Near you in North Baddesley
In North Baddesley, that means homes and buildings near The Mountbatten School, among other places. North Baddesley’s nearest station is Romsey station, roughly 2.3 miles north-west of the centre. Other landmarks nearby include Romsey Community Hospital (1.9 miles north-west) and King Johns House (2.5 miles west). Open spaces near North Baddesley include Emer Bog and Baddesley Common.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Walls that need new movement joints cut into them
- Cracking across the wall rather than at a joint
- Render that is blown, hollow or coming away
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Surfaces we seal
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Copings & trims
Why act early in North Baddesley
A failed movement joint lets water into the wall. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. In an older home around North Baddesley, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why North Baddesley clients choose us
- Colour picked to suit the job
- Anti-fungal sanitary silicone in wet areas
- Tidy, careful work
- More than 20 years in sealant work
Read what affects the cost or what customers say.
What happens on the day
The work is kept neat and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. For a job in North Baddesley, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- 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.
Before we arrive
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
- Let us know about parking restrictions
Get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
Related advice
Signs you need external mastic in North Baddesley
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. The joint cannot move, so the wall cracks somewhere else instead.
Most people get in touch after spotting something like this:
- Failed seals between different materials
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
- Brick movement joints where the sealant has split
If you let a flat or house near Romsey station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- Which sealant they’ll use, and why
- Is VAT in the price?
- When the joint can take water or movement
- How long the guarantee is
FAQs for North Baddesley
Do you cover smaller places like North Baddesley?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
I let a flat near Romsey station. Can you help?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
Is there a guarantee?
Yes. Every job comes with our one-year guarantee.
Can I do it myself?
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 take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover North Baddesley.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the 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. Everything old must be removed first.
Also in North Baddesley
How the job changes by surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
What affects the quote in North Baddesley
Every job gets its own quote. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Working hours on commercial sites
- Access and height
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Asking for a quote
What to tell us when you ask for a quote:
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- The rough size of the job
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved before giving you a price.