Hampshire · England
External Mastic in Elvetham
Our applicators work in Elvetham on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Water getting into walls through failed joints
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
Surface by surface
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so its sealant has to stay flexible.
How we handle external mastic in Elvetham
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. If you have rain getting behind render or cladding at a joint and joints with sealant missing in places, we can put it right.
External sealant needs dry, clean surfaces, so work around Elvetham is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Your job is guaranteed for a year, as with all our work.
- Location
- Elvetham (RG27)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Elvetham
Also in Elvetham
How we quote for external mastic
Your quote is based on your job. We take into account:
- The type of sealant required
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
When you call or email, these details help:
- How we’d reach the joints
- The type of property
- Any previous sealing or DIY work
- The rough size of the job
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Act on the first splits you see
- Avoid pressure-washing directly into sealant joints
- Tell anyone working on the walls about the movement joints
- Check the sealant is paintable before painting near it
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
Your questions about external mastic in Elvetham
Do you cover smaller places like Elvetham?
Yes. Elvetham is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Fleet station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
How long should I leave it?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Can new sealant go over the old?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
How long does external mastic last?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
Can a movement joint be filled with mortar?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. It needs a flexible sealant over backing rod.
Landlords, agents and businesses in Elvetham
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
How the visit works
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on how much there is to do. Somewhere as small as Elvetham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about earlier repairs to the joints
- Tell us about any water getting in
Get 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, and add photos by email if you can.
Read more
Do you need external mastic in Elvetham?
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
These are the problems we’re asked about most:
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Damp patches traced to an open external joint
- Joints pointed up with cement by mistake
If you look after a building such as Elvetham Heath Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before booking
- How hidden problems are handled
- When the joint can take water or movement
- The length of the guarantee
- Whether they’re fully insured
What external mastic looks like in Elvetham
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Fleet station, split movement joints are easy to miss on a rental until damp shows inside. If you live in an older home near Church of St Mary at Elvetham Hall, an extension built onto an older house moves differently, and the joint between them takes the strain.
Elvetham is about 2 miles north-west of Fleet, in Hampshire. Anywhere in RG27, we can carry out external mastic at your property. 683 places in Hampshire are on our list. Reading is on our list too, about 11 miles from Elvetham.
We work across the RG27 postcode area for external mastic. Streets in the area include Home Farm Road and Fleet Road. If you are just outside Elvetham, we cover Elvetham Heath (1 mile east), Winchfield Hurst (1 mile south-west), Crookham Village (2 miles south), Dogmersfield (2 miles south) and Fleet (2 miles south-east). Further out, we also cover Basingstoke (10 miles west), Farnborough (4 miles east), Aldershot (6 miles south-east), Alton (11 miles south-west), Yateley (3 miles north-east) and Tadley (12 miles west).
Near you in Elvetham
Around Elvetham, our work takes us to homes and buildings near Sunday School, De Havilland Arms and The Views Meadow and the streets around them. Elvetham’s nearest station is Fleet station, roughly 1.8 miles east. A little further out are Fleet Community Hospital (1.2 miles south-east) and Odiham Castle (4.6 miles south-west). Open spaces near Elvetham include Aunt's Pool and Hitches Hill.