Oxfordshire · England

External Mastic in Norham Manor

Problem with your movement joints in Norham Manor? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Weathered mastic that no longer stretches
  • Joints with sealant missing in places
  • Joints pointed up with cement by mistake

Need external mastic in Norham Manor?

Norham Manor questions

I let a flat near Oxford station. Can you help?

Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or send us an email with the details for a clear quote.

Can you do external mastic in Norham Manor?

Yes, Norham Manor is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.

Do you have insurance?

Yes. Full insurance covers our work.

Why do you put foam in the joint first?

Backing rod goes into deeper joints as a matter of course. It sets the sealant depth and prevents three-sided bonding so the bead can stretch.

Can a movement joint be filled with mortar?

No. Cement or mortar cannot stretch and the joint fails. If it has already been filled, we can normally cut it out and reseal it.

Do you do commercial work?

Yes. Larger jobs can be planned room by room or area by area.

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.

What should I tell you?

The location, the problem and the rough size of the job. If you can, email a few photos.

External mastic in Norham Manor, done properly

Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. Common call-outs are for movement joints filled with mortar instead of sealant and failed sealant between panels on a façade, on joints between brick and frames, copings & trims and brickwork movement joints.

Outbuildings, garages and conservatories around homes in places like Norham Manor add more joints to look after. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.

Our work is backed for twelve months, in Norham Manor and everywhere else we cover.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Norham Manor (OX2, OX1, OX3)
Region
Oxfordshire
Cover
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

What affects the cost of external mastic

Some jobs are bigger than they look, and some smaller. The main factors:

  • Whether old sealant or filler has to be cut out
  • Mould in or behind the old joints
  • Whether the work is at height
  • The type of sealant required

We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.

Asking for a quote

What to tell us when you ask for a quote:

  • Pictures of the joints, sent by email
  • The problem you’ve noticed
  • If someone has resealed it before
  • Any access issues, like height or stairs

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or send us an email.

What we can’t put right

We will not take on work that won’t last, so these are the limits:

  • Movement that is more than a sealant joint can take
  • Walls that need new movement joints cut into them
  • Failed render or damaged cladding panels

If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.

Surfaces we seal

  • Brickwork movement joints
  • Joints between brick and frames
  • Copings & trims
  • Façade panels
  • Concrete & block
  • Render & cladding joints

What we’re called out for in Norham Manor

Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.

Keep an eye out for these signs:

  • Joints with sealant missing in places
  • Cracked joints where brick meets render or frames
  • Leaking joints around cladding and façade panels
  • Sealant that has lost its bond to the brick or render

If you look after a building such as Wychwood School, its movement joints, gutters and trims need looking after like any other building’s.

What your quote should include

  • Is the old sealant removed completely?
  • The length of the guarantee
  • How the surfaces are prepared before sealing
  • What the quote includes, VAT included or not

10 questions to ask before you book

Walls and rooflines in Norham Manor

Historic houses like Holywell Manor (about 0.7 miles south-east) are a reminder that the area around Norham Manor has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Historic houses such as Holywell Manor, about 0.7 miles south-east, show how far back building around Norham Manor goes. Letting a property close to Oxford station? Then split movement joints are easy to miss on a rental until damp shows inside.

Norham Manor is about 1 mile north-west of Oxford, in Oxfordshire. Anywhere in OX2, we can carry out external mastic at your property. We cover 443 towns and villages across Oxfordshire, from the larger towns to small villages.

All of OX2, OX1 and OX3 is covered for external mastic, from the main roads to the quietest streets. Whether your property is on Love Lane, Parks Road and Keble Road or anywhere close by, we can help. Being close to the A4144, Norham Manor is simple for us to get to for external mastic. We also cover the places around Norham Manor: Park Town (1 mile west), Walton Manor (1 mile west), Jericho (1 mile south-west), St John Street area (1 mile south) and North Oxford (1 mile north-west). We also work in nearby towns such as Didcot (11 miles south), Bicester (10 miles north-east), Abingdon-on-Thames (6 miles south), Witney (10 miles west), Carterton (14 miles west) and Thame (12 miles east).

What’s near Norham Manor

Typical jobs here are in homes near St Hugh's College Main Building Including Library, Oxford Academy and Oxford University Parks and the streets around them. You will also find St Aloysius' Catholic Primary School (less than half a mile west) and The Rose & Crown pub (under half a mile west). For rail, the closest station is Oxford station, roughly 1 mile south-west of the centre. Well-known places in the area include Oxford University Museum of Natural History (within half a mile south) and Oxford Castle (0.9 miles south). Green spaces nearby include Headington Hill and Hook Meadow and The Trap Grounds.

Map of Norham Manor © OpenStreetMap contributors

Why act early in Norham Manor

Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. Around Norham Manor, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.

Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.

Why us?

  • 4.9 on Google from 180+ five-star reviews
  • Experience in homes, commercial sites and hotels
  • Neat joints and a tidy finish
  • Any old sealant cut out fully, not covered over

Read what affects the cost and what customers say.

Should I try it myself first?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.

What happens on the day

On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to several days, depending on the building, including the tidy-up. A visit to Norham Manor is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  1. First we look over the joints with you, agree which to renew and talk through access.
  2. Old sealant and any debris are cut and raked out.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
  5. The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.

Preparing for the visit

  • Mention if the joints have been sealed before
  • Tell us about access, such as stairs, a lift or high-level joints
  • Let us know about parking restrictions

Ask for a quote

For external mastic in Norham Manor, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before we start.

Get a price

Related advice

How to look after the new joints

Looking after new joints is easy, and it makes a real difference:

  • Check the sealant is paintable before painting near it
  • Clear growth from the base of walls and joints
  • Keep water from gutters off the wall
  • Have failed joints looked at early

Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.

If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job