Oxfordshire · England
External & façade joints in Marcham, Oxfordshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Marcham and across Oxfordshire. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Joints with sealant missing in places
- Rigid filler in a joint that should flex
- Rain getting behind render or cladding at a joint
Marcham buildings and the weather
Historic houses like Appleton Manor (about 3 miles north) are a reminder that the area around Marcham 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. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Radley station, split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Abingdon Preparatory School? Then its movement joints, gutters and trims need looking after like any other building’s.
Marcham is about 3 miles west of Abingdon-on-Thames, in Oxfordshire. For external mastic in and around Marcham, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We’re based in Crawley and cover Oxfordshire. We cover 443 towns and villages across Oxfordshire. We also work in Oxford, around 7 miles away.
We work across the OX13 postcode area for external mastic and the streets around it. Local streets include Haines Court, Orchard Way and Elwes Road. Other places close to Marcham include Frilford (1 mile west), Frilford Heath (1 mile north-west), Cothill (2 miles north), Tubney (2 miles north-west) and Shippon (2 miles north-east). Within a short drive, we also cover Oxford (7 miles north-east), Didcot (6 miles south-east), Abingdon-on-Thames (3 miles east), Witney (10 miles north-west), Carterton (13 miles north-west) and Wantage (6 miles south-west).
Near you in Marcham
Typical jobs here are in homes near Larkmead School and The Crown Public House and the streets around them. The nearest railway station is Radley station, roughly 4.4 miles east of the centre. A little further out are Abingdon Community Hospital (1.7 miles east) and FitzHarris Castle (2.5 miles east). Open spaces near Marcham include Hitchcopse Pit and Cumnor Hill.
How we handle external mastic in Marcham
Low-level joints can generally be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what’s needed to reach them safely. We work on concrete & block, brickwork movement joints and copings & trims, and the jobs we see most are sealant pulling away from one side of the joint and movement joints with cracked, split or missing sealant.
Homes around Marcham range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
All our work comes with our one-year guarantee.
- Place
- Marcham (OX13)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
When it is not the sealant
Before you book, it’s worth knowing the limits:
- Cracked brickwork or render that needs a builder or plasterer
- Walls that need new movement joints cut into them
- Subsidence or other structural problems
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in Marcham
- Brickwork movement joints
- Copings & trims
- Façade panels
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Walk round the building once a year and look at the joints
- Act on the first splits you see
- Tell anyone working on the walls about the movement joints
- Avoid pressure-washing directly into sealant joints
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Nearby places to Marcham
What else we do in Marcham
FAQs for Marcham
Do you cover Marcham for external mastic?
Yes, Marcham is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do you work for landlords with property near Radley station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
What is a movement joint?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away and have them redone then.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose, and the wall may crack nearby. A flexible sealant is the right fill.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that generally means someone at home.
What affects the quote in Marcham
For a quick quote, just ask. The main things that affect it are:
- Whether there’s mould to deal with
- Any working-time requirements on site
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.
What we need to know
Photos help, but a description is a good start. Please mention:
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- If someone has resealed it before
- The type of property
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
How it works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access. A visit to Marcham is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
Ask for a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Advice
When to call us in Marcham
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Look out for these signs:
- Sealant pulling away from one side of the joint
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
- Rain getting behind render or cladding at a joint
Homes close to Church of All Saints include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
What to look for in a quote
- Is the old sealant removed completely?
- Whether they’re fully insured
- When the joint can take water or movement
- Whether you can choose the colour