The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Codmore Hill expansion joint sealing

Planning work on a movement joint in Codmore Hill? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Expansion joints filled with dirt and stones
  • Rain penetration at brick or block movement joints
  • Movement joints with split or torn sealant
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Expansion joint sealing in Codmore Hill

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Expansion joint sealing in Codmore Hill

Long runs of brick or block have movement joints built in that most people only notice when the sealant has gone. Once the seal fails, rain reaches the cavity and the joint can no longer close. The old seal is cut away, backing rod goes in at depth, and a low-modulus masonry sealant is gunned and tooled, primed where the manufacturer specifies. If you have damp inside where a wall movement joint has failed and joints packed with grit and debris, we can help, whatever the surface. Most enquiries from Codmore Hill start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.

Smaller community and commercial buildings around Codmore Hill have their own movement joints in walls and floors. They tend to be overlooked until something leaks or cracks.

Our workmanship is guaranteed for 12 months, in Codmore Hill as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.

Location
Codmore Hill (RH20)
Region
West Sussex
Cover
12 months on our workmanship
Quote
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Diagnose, treat, sign off

Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. If others near Codmore Hill need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. Next, we fix a price and confirm the sealant we propose for the movement.
  3. Old sealant and filler are cut out and the joint faces cleaned back to sound material, and we tell you if any edges need repairing first.
  4. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  5. Where the maker calls for primer, it’s applied first, then the bead goes in and is tooled to a concave finish.
  6. Each joint is inspected and handed over with our 12-month guarantee.

Before we start on site

  • Move anything stored against the joints
  • Agree which areas must stay open
  • Send asbestos survey details if the building is pre-2000

Getting a fixed quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or email us.

Ask for a quote

Read more

Expansion joint sealing around Codmore Hill: points for this area

Less than 3 miles from Codmore Hill there are two named estates and business parks. That puts plenty of warehouse floors, service yards and car parks close by, all with joints under traffic. At about 40 miles from central London, Codmore Hill is within reach of the capital. The roads out of London are lined with trade parks and distribution sheds.

Another example is Station Approach Industrial Estate, which lies south-west of Codmore Hill, where floors and yards would be done in stages around the occupiers. Schools such as St Mary's Church of England Primary School have movement joints in their walls and floors that are easy to overlook.

Codmore Hill is about 10 miles south-west of Horsham, in West Sussex. Codmore Hill sits inside our coverage and the rest of West Sussex, with the same fixed quotes and 12-month guarantee as everywhere else. Our West Sussex coverage takes in 373 places. We also cover Brighton, some 19 miles away.

If you need expansion joint sealing in RH20, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Masons Way, Hill Farm Lane and Stane Street and the roads nearby. If your building is just outside Codmore Hill, we cover Broomershill (1 mile south-east), North Heath (1 mile north-east), Nutbourne (1 mile south-east), Marehill (1 mile south-east) and Gay Street (2 miles east). Nearby towns on our patch include Horsham (10 miles north-east), Worthing (11 miles south-east), Bognor Regis (15 miles south-west), Chichester (15 miles south-west), Littlehampton (11 miles south) and Shoreham-by-Sea (14 miles south-east).

What’s near Codmore Hill

The nearest railway station is Pulborough station, roughly 1.2 miles south-west. Nearby you will also find Coates Castle (4.2 miles west). Green spaces nearby include The Mens.

Map of Codmore Hill © OpenStreetMap contributors

Why deal with it now?

A torn seal left alone typically gets worse. Water and debris get in, the joint jams and the edges spall. Acting at the first split keeps the cost down. Around Codmore Hill, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote once you have the details.

Why clients in Codmore Hill choose us

  • CHAS accredited
  • Failed material removed, not covered up
  • Sealing commercial buildings since 2005
  • 12 months’ guarantee on every job

Read how commercial sealant jobs are priced or our accreditations.

Keeping the joints sound

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Check joints after long freezing spells
  • Report split or peeling joint sealant early
  • Include every elevation and deck joint in periodic inspections
  • Raise snow-clearing blades over deck joints where possible

Keep wheels, feet and water off new joints until the sealant has cured. How long that takes depends on the product, the temperature and the depth of the joint, and we confirm it for each area before we leave. Barriers left in place until then protect the finish.

Once debris packs a failed joint, the structure has nowhere to expand. The arrises crack and break away under the load, turning a sealant job into a repair job. Keeping the seal sound avoids all of that.

Different surfaces, different methods

Joints between different materials

Junctions between brick and render, or concrete and cladding, move independently. We choose a sealant that grips both faces.

Brickwork and blockwork joints

Vertical movement joints in brick and block walls let the masonry grow and shrink. We use a sealant rated for the movement, typically low-modulus, with backing rod setting the depth.

FAQs: Codmore Hill

Is Codmore Hill too far out for you?

Not at all. Codmore Hill is within our area. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Do you cover business parks and estates near Codmore Hill, such as Broomers Hill Business Park?

Yes. We cover Codmore Hill and the area around it, including industrial estates, business parks and retail parks such as Broomers Hill Business Park. A few photos and the unit address let us price the work.

How do you choose the sealant?

A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Can the sealant be colour-matched?

It depends on the product. Some ranges are wide, others limited, so the available colours are confirmed with the quote.

Are you fully insured?

Yes. We are fully insured, and the certificate can go with your quote.

Can the building stay open while you work?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

What’s the quickest route to a quote?

You can use the quote form on this site; alternatively, ring 01277 525 020 or email a schedule or drawings. Photos, drawings or a joint schedule help us quote quickly.

Do you need expansion joint sealing in Codmore Hill?

Weathering wears down sealant on exposed elevations and decks. UV hardens the surface, and the sealant loses its ability to stretch.

Typical triggers for a call:

  • Expansion joints split through the centre of the bead
  • Debris jammed in movement joints
  • Joints where the bead has lost adhesion
  • Layers of sealant in a movement joint

For buildings at a park such as Broomers Hill Business Park, less than half a mile north-east of Codmore Hill, brick and panel movement joints are easy to forget until one leaks.

Before you book anyone

  • How long is the guarantee, and what does it include?
  • Health and safety accreditation such as CHAS
  • How they’ll work around occupants
  • Whether old or failed sealant will be cut out, not overlaid

Choosing a commercial sealant contractor

When it isn’t the sealant

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Movement on a scale no sealant is meant to absorb
  • A joint that has to be widened or re-detailed before it can work
  • Proprietary pre-formed expansion joint systems

If in doubt, ring 01277 525 020 or email the details over and we’ll say what we think.

Where we work in Codmore Hill

  • Car park decks and ramps
  • Podiums and floor movement joints
  • Precast concrete panel joints
  • Cladding panel joints
  • Brickwork movement joints
  • Blockwork control joints
Accreditations

Trusted. Accredited. Insured.