Hampshire · England
Whitsbury External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Whitsbury. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Hard, crazed mastic that has stopped moving
- Weeds or debris growing in open joints
For landlords and businesses
For anyone letting property in or around Whitsbury, several properties can be quoted together. Send us the addresses and the work at each, and pictures by email help.
We also work for property managers and facilities teams in Whitsbury and across Hampshire. Several sites can be quoted together, and we’re fully insured for the work.
External mastic in Whitsbury
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall so the joint does not stand out. If you have failed seals between different materials and weathered mastic that no longer stretches, we can put it right.
Somewhere as small as Whitsbury, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Whitsbury (SP6)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Leave the joints unpainted unless we have said otherwise
- Deal with leaking gutters that soak the joints below
- Don’t let climbing plants root in the sealant
- Keep movement joints as flexible joints, not mortar
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.
Places near Whitsbury
Other services in Whitsbury
Whitsbury buildings and the weather
Historic houses like Breamore House (about 1.6 miles east) are a reminder that the area around Whitsbury has older buildings as well as new. 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.
Managing a site like Western Downland Church of England Aided Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Whitsbury is in Hampshire. Every kind of property in Whitsbury can book us for external mastic. The work is guaranteed for a year. 683 places in Hampshire are on our list, from the larger towns to small villages. Our Southampton page covers work nearby (19 miles or so).
Work in SP6 works the same way as everywhere else we cover. Other places close to Whitsbury include Rockbourne (1 mile south-west), Damerham (2 miles south-west), Sandleheath (3 miles south), Ashford (3 miles south) and Alderholt (4 miles south). Within a short drive, we also cover Totton (14 miles east), Romsey (15 miles east), Ringwood (9 miles south), Fordingbridge (3 miles south), St Leonards (10 miles south) and Brockenhurst (15 miles south-east).
What’s near Whitsbury
Locally, jobs take us to homes and businesses close to The Cart Wheel Public House, among other places. Nearby you will also find Fordingbridge Museum (3.4 miles south-east) and Salisbury District Hospital (5.2 miles north).
How it works
Before we leave, we go over the finished joints with you. The work normally takes anything from a few hours to several days, depending on the building, depending on the size of the job. Somewhere as small as Whitsbury, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
Getting a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear price before we start.
Advice
When to call us in Whitsbury
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
If you can see any of these, it’s time to have the joints looked at:
- Old sealant gone brittle and cracked
- Rain getting behind render or cladding at a joint
- Joints pointed up with cement by mistake
- Cracked joints where brick meets render or frames
If you live in an older home near Church of St Leonard, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- How much experience the applicator has
- Whether all the old sealant comes out first
- Whether they’re fully insured
- How hidden problems are handled
Common questions in Whitsbury
Can you do external mastic in Whitsbury?
Yes. We work across London and the South East, and Whitsbury is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Is Whitsbury within the area you cover?
Yes, Whitsbury is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Do you do commercial work?
Yes. We can plan bigger jobs in stages to suit the site.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can you seal over the old sealant?
No. We remove every bit of old sealant first.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Do you have insurance?
Yes, we’re fully insured for domestic and commercial work.
Why deal with it now?
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. Older cottages and farmhouses around Whitsbury can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Whitsbury
- A 12-month guarantee on all work
- Domestic, commercial and hotel work
- We leave the area clean and tidy
- Sealant colour chosen to suit
See what affects the cost and customer reviews.
Quotes for external mastic in Whitsbury
The price is agreed before any work begins. It’s based on:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- When we can work, for business premises
- How many areas need sealing
Rather than a set price list, 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.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- If it’s domestic, commercial or a hotel
- Photos by email, if that’s easy
- What’s wrong with the joints now
- The address or postcode of the job
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
What sealant work cannot fix
Before you book, it’s worth knowing the limits:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Subsidence or other structural problems
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Brickwork movement joints
- Concrete & block
- Façade panels
- Joints between brick and frames
- Copings & trims
- Render & cladding joints