Hampshire · England
Burley Street External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Burley Street. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
- Plants rooting in failed movement joints
About our external mastic in Burley Street
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 so the joint does not stand out. We work on joints between brick and frames, façade panels and copings & trims, and people most often call us about sealant pulling away from one side of the joint and rigid filler in a joint that should flex.
Older homes in small places like Burley Street may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
You get a one-year guarantee, the same in Burley Street as everywhere else we work.

- Place
- Burley Street (BH24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Burley Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Mention any parking rules near the property
- Clear items away from the joints we’re working on
- Mention any leaks or damp you’ve noticed
Getting a quote
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
Advice
Burley Street: your questions answered
What guarantee comes with external mastic in Burley Street?
All our work, in Burley Street and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is Burley Street in your area for external mastic?
Yes, Burley Street is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Will the new joint stand out?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
Can you seal joints between two different materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. We choose one that suits both surfaces.
Where are you based?
Mr Mastic is based in Crawley. We cover Burley Street and the rest of Hampshire, along with the rest of our area.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Do you need external mastic in Burley Street?
If plants are growing out of a joint, the sealant has normally failed or was never there. Roots and dirt hold water against the wall.
The problems people usually mention when they call are:
- Old sealant gone brittle and cracked
- Failed seals between different materials
- Rain getting behind render or cladding at a joint
- Sealant pulling away from one side of the joint
Avon Tyrrell House, about 2.7 miles south-west, is one of the historic houses in the wider area around Burley Street, and older homes nearby need a sealant that suits their walls.
What to look for in a quote
- Whether VAT is included
- Whether the sealant suits the joint
- Is the old sealant removed completely?
- How much experience the applicator has
External mastic in Burley Street: local notes
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. With historic houses such as Avon Tyrrell House (about 2.7 miles south-west) nearby, there’s older building stock in the area around Burley Street as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For site and facilities teams at buildings such as Burley Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Burley Street is in Hampshire. Wherever you are in the BH24 postcode area, we cover external mastic for homes and businesses. Across Hampshire, we cover 683 places, and Burley Street is one of them. We also work in Southampton, about 15 miles from Burley Street.
Our applicators cover all of the BH24 postcode area for external mastic. You will find streets such as Tyrells Lane, Ringwood Road and Forest Road, all of which we cover. Neighbouring places we cover for external mastic include Burley (1 mile south-east), Foulford (2 miles north-west), Forest Corner (2 miles north-west), Shobley (2 miles north-west) and Bagnum (2 miles south-west). Further out, we also cover Totton (11 miles north-east), Lymington (9 miles south-east), Romsey (15 miles north-east), Hythe (14 miles east), New Milton (6 miles south) and Ringwood (3 miles west).
Near you in Burley Street
Locally, jobs take us to homes and businesses close to The Queen's Head pub, among other places. For a walk, there’s Linbrook Lake and Blashford Lakes.
More services for Burley Street
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Older cottages and farmhouses around Burley Street can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why book with us
- 20+ years of sealant experience
- You choose the colour before work begins
- An ARBOMaster approved applicator
- Neat joints and a tidy finish
Take a look at our cost guide and our reviews.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Cracking across the wall rather than at a joint
- Walls that need new movement joints cut into them
- Damp that is not coming from the joint
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Copings & trims
- Concrete & block
What the job involves on each surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that is happened, we rake it out and reseal it properly.
What affects the cost of external mastic
For a quick quote, just ask. What matters most is:
- The number and length of the joints
- Any working-time requirements on site
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- If it’s domestic, commercial or a hotel
- Where the property is
- How many joints, rooms or windows are involved
- If someone has resealed it before
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
