Southampton · England
External & façade joints in Peartree Green, Southampton
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Peartree Green. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints where the bead has come unstuck
- Movement joints filled with mortar instead of sealant
- Plants rooting in failed movement joints
Questions from Peartree Green
I let a flat near Woolston station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Does the coastal weather in Peartree Green affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you work at height?
It depends on the building. Where joints can be reached safely, we’ll do them. Tell us about the building and we will confirm what access is needed.
How long will you be here?
That depends on the amount of work, but most jobs take a few hours to a few days, depending on the length of joint and the access. We will give you a better idea when we quote.
Do you have insurance?
Yes. We are fully insured.
Where are you based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Should I try DIY first?
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.
How we handle external mastic in Peartree Green
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we’ll confirm what access is needed. If you are dealing with damp patches traced to an open external joint and joints with sealant missing in places, we can put it right, on render & cladding joints, copings & trims and brickwork movement joints alike.
Around Peartree Green, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks generally start at a gutter end, a garage door frame or where an extension meets the house.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Place
- Peartree Green (SO19, SO14)
- Wider area
- Southampton
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Clear growth from the base of walls and joints
- Never let anyone fill a movement joint with mortar
- Get split or bare joints resealed while the damage is small
- Show decorators and builders where the movement joints are
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
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.
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best year round.
What affects the quote in Peartree Green
You will get a clear quote before any work starts. It’s based on:
- Working hours on commercial sites
- How easy the joints are to reach
- How much there is to do
- How many areas need sealing
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Any access issues, like height or stairs
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Towns and villages near Peartree Green
More services for Peartree Green
Common problems we fix in Peartree Green
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
It’s worth asking for a quote if you see:
- Joints pointed up with cement by mistake
- Old sealant gone brittle and cracked
- Gaps where render, brick and frames meet
- Joints with sealant missing in places
Schools such as Ludlow Infant Academy are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before you book
- What the quote includes, VAT included or not
- Who turns up on the day
- The length of the guarantee
- How the surfaces are prepared before sealing
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours to a few days, depending on the length of joint and the access. Parking around Peartree Green is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Keep pets and children clear of the area while we work
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Every job is quoted individually. Just phone 0345 464 0079 or drop us an email with the details, and photos are welcome.
Read more
Leave it or put it right?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Homes in smaller places like Peartree Green can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and give you a clear quote before work begins.
Why choose Mr Mastic in Peartree Green
- Anti-fungal sanitary silicone in wet areas
- We agree the colour with you first
- 180+ five-star Google reviews
- One-year guarantee on every job
Take a look at how sealant jobs are priced and customer reviews.
Outside joints around Peartree Green
Peartree Green is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Peartree Green United Reform Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Woolston station, split movement joints are easy to miss on a rental until damp shows inside.
Peartree Green is about 1 mile south-east of Southampton, in Southampton. Every kind of property in Peartree Green is covered for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Peartree Green is one of 40 towns and villages in Southampton where we work.
We cover every part of SO19 and SO14 for external mastic. Local streets include Sea Road, Hazel Road and Ailsa Lane, all of which we cover. If you’re just outside Peartree Green, we cover Itchen (1 mile south-east), Northam (1 mile north), St Mary's (1 mile west), Bitterne (1 mile north-east) and Sholing (1 mile east). Larger places within reach include Shirley (3 miles north-west), Regents Park (3 miles west), Maybush (4 miles north-west), Coxford (4 miles north-west), Lordswood (4 miles north-west) and Eling (5 miles west).
What’s near Peartree Green
Around Peartree Green, our work takes us to homes and buildings near Woolston School, Houndwell Park and Inspire Enterprise Academy. Peartree Green has its own railway station: Woolston station. Other landmarks nearby include Netley Castle (2 miles south) and Marlands Shopping Centre (1.3 miles west). The countryside around Peartree Green includes Netley Common.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.