Southampton · England
External & façade joints in Lordswood, Southampton
Our applicators work in Lordswood on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Weathered mastic that no longer stretches
- Joints with sealant missing in places
- Damp patches traced to an open external joint
External mastic for homes and businesses in Lordswood
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. Typical jobs include panel joints letting water in and cracked joints where brick meets render or frames, on brickwork movement joints, façade panels and copings & trims.
Outbuildings, garages and conservatories around homes in places like Lordswood add more joints to look after. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Lordswood (SO16, SO15)
- Region
- Southampton
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out and protects the render itself.
Concrete and blockwork
Concrete faces can be dusty and porous, so preparation is key. A primer goes on where the product requires one before the bead.
What else we do in Lordswood
Lordswood: your questions answered
I let a flat near Millbrook (Hants) station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Lordswood?
Yes. Lordswood 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.
What should I tell you?
A short description and the location. If we need more, we’ll ask.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can you quote for more than one area?
Yes. Just list everything you need.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
Can you seal joints between two different materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces with primer where required.
What affects the cost of external mastic
We quote each job individually. This is what makes a difference:
- The number of rooms or windows
- Any working-time requirements on site
- The number and length of the joints
- The type of sealant required
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
To make quoting easier, please include:
- Roughly how big the job is
- What’s wrong with the joints now
- If someone has resealed it before
- The type of property
For external mastic in Lordswood, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Outside joints around Lordswood
Lordswood is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. With historic houses such as South Stoneham House (about 2.4 miles east) nearby, there’s older building stock in the area around Lordswood as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Homes close to Lord's Hill Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. Managing a site like Oakwood Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Lordswood is about 2 miles north-west of Southampton, in Southampton. Across the SO16 area, we cover external mastic for homes and businesses. 40 places in Southampton are on our list.
Every address in SO16 and SO15 is within our area for external mastic. That includes homes and businesses on Peach Road, Linden Road and Woburn Road and the roads around them. We also cover the places around Lordswood: Coxford (1 mile south-west), Bassett (1 mile east), Rownhams (1 mile north-west), Maybush (1 mile south-west) and Chilworth (1 mile north-east). We also work in nearby towns such as Townhill Park (3 miles east), Midanbury (3 miles east), Thornhill (5 miles south-east), Chartwell Green (4 miles east), Harefield (4 miles south-east) and Itchen (4 miles south-east).
Local landmarks in Lordswood
In Lordswood, that means homes and buildings near St James' Park, Upper Shirley High School and Oaklands Community School, among other places. For rail, the closest station is Millbrook (Hants) station, roughly 2.2 miles south. A little further out are Marlands Shopping Centre (2.8 miles south-east) and Princess Anne Hospital (0.5 miles south). Open spaces near Lordswood include Testwood Lakes.
Why it’s worth doing now in Lordswood
A failed movement joint lets water into the wall. Resealing early keeps the job to the joint itself, rather than the wall around it. Homes in smaller places like Lordswood can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why book with us
- Any old sealant cut out fully, not covered over
- Tidy, careful work
- Anti-fungal sanitary silicone in wet areas
- More than 20 years in sealant work
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. In a smaller place like Lordswood, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- 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.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
- Mention any tricky access
How to get a quote
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job.
Advice
When to call us in Lordswood
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, so it pulls away from the edges.
It’s worth asking for a quote if you see:
- Hard, crazed mastic that has stopped moving
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
- Water getting into walls through failed joints
Letting a property close to Millbrook (Hants) station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- Are they insured?
- What the cure time is
- What happens if they find a problem under the old sealant
- What preparation is included
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
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 does not work out, we can still put it right.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Act on the first splits you see
- Check the sealant is paintable before painting near it
- Never let anyone fill a movement joint with mortar
- Look over the joints every year, ideally after winter
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.