Hampshire · England
External Mastic in Springvale
Movement joints in Springvale need attention? We remove the old material, prepare the joints and seal them properly.
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
- Joints where the bead has come unstuck
What we do, step by step
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. A visit to Springvale is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear price before any work starts.
Advice
External mastic in Springvale
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. If you are dealing with cracked joints where brick meets render or frames and failed sealant between panels on a façade, we can put it right, whatever the surface.
Outbuildings, garages and conservatories around homes in places like Springvale add more joints to look after. Leaks generally start at a gutter end, a garage door frame or where an extension meets the house.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Springvale (SO23)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Springvale
Other services in Springvale
What affects the cost of external mastic
Every job gets its own quote. These are the things that affect it:
- Which sealant suits the joint
- Whether the work is at height
- Any mould that needs treating
- How many rooms, windows or areas are involved
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Asking for a quote
When you call or email, it’s useful to know:
- Where the property is
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
When to call us in Springvale
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
People generally contact us when they notice one of these:
- Sealant that has lost its bond to the brick or render
- Rain getting behind render or cladding at a joint
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
If you look after a building such as Kings Worthy Primary School, larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- Whether they’re fully insured
- How long the guarantee is
- What preparation is included
- Whether they seal over old material or remove it
Walls and rooflines in Springvale
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around St Mary's Church Hall, the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Winchester station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Springvale is about 3 miles north of Winchester, in Hampshire. Homes, rented property, offices and hotels in Springvale can book us for external mastic. Every job comes with our 12-month guarantee. Springvale is one of 683 towns and villages in Hampshire we cover for external mastic. For nearby work, see our Southampton page.
Jobs for external mastic in SO23 works the same way as everywhere else we cover. You’ll find streets such as Boyne Rise, Springvale Road and Forbes Road. Neighbouring places we cover for external mastic include Worthy Down (2 miles north-west), South Wonston (2 miles north-west), Stoke Charity (3 miles north), Hunton (4 miles north) and Sutton Scotney (4 miles north-west). We also work in nearby towns such as Basingstoke (14 miles north-east), Winchester (3 miles south), Eastleigh (9 miles south), Andover (11 miles north-west), Totton (15 miles south-west) and Chandler's Ford (9 miles south-west).
Near you in Springvale
We work in homes and buildings around Henry Beaufort School and The Cart And Horses Public House, among other places. The closest station to Springvale is Winchester station, about 2.4 miles south. Nearby you will also find Royal Observer Corps Museum (1.7 miles south) and St John's Rooms And Chapel (2.7 miles south). Green spaces nearby include Twyford Down and Winnall Moors.
FAQs for Springvale
Can you do external mastic in Springvale?
Yes. We work across London and the South East, and Springvale is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Springvale?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you reach joints on upper floors?
It depends on the building. Tell us the height, the number of joints and what’s below them and we will confirm how they can be reached safely.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
What colours does the sealant come in?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Can tenants book the work?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can a movement joint be filled with mortar?
No. Rigid materials can’t move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Why deal with it now?
Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Springvale, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why choose Mr Mastic in Springvale
- ARBOMaster approved applicator
- Fully insured
- We leave the area clean and tidy
- White, clear, grey or another colour, product permitting
What the job involves on each surface
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so the movement is taken up.
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap and keep the sealant to the right depth.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.