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

Expansion joint sealing in Coates

Expansion joint sealing for Coates, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Arrises breaking up along floor joints
  • Sealant peeling off one face of the joint
  • Damp inside where a wall movement joint has failed
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
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 PL insurance

Expansion joint sealing for businesses in Coates

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Expansion joint sealing for commercial buildings in Coates

Brickwork and blockwork walls have vertical movement joints at intervals, and they’re easy to miss until the sealant fails. 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. The enquiries we see most involve layers of sealant in a movement joint and weathered movement joint sealant that no longer flexes, across brickwork movement joints, car park decks and ramps and podiums and floor movement joints. Facilities teams, main contractors and managing agents in Coates tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Halls, schools and small commercial buildings near places like Coates have movement joints in brick, block and concrete too. They tend to be overlooked until something leaks or cracks.

What our 12-month guarantee covers is the way we did the job: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Coates (RH20)
Region
West Sussex
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026

Your questions answered

Is Coates off your patch?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Is Quell Farm Industrial Estate, near Coates, within your area?

Yes. Estates, retail parks and business parks around Coates, Quell Farm Industrial Estate among them, are all within reach. Photos and a short description are enough for a first look.

Do you reseal car park expansion joints?

Yes. Tyre loads, grit and de-icing salts make these some of the hardest joints to keep sealed and broken edges are flagged before sealing.

Will you quote for a small job?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

What about RAMS and site documents?

Requirements differ from site to site, so tell us what you need and we will confirm it when we quote.

Can the building stay open while you work?

Yes, as long as we plan it. Tell us your site hours and access windows and we will plan around them.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.

Our process

Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. Rural sites near Coates may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. First the joints are inspected, widths measured and the type of failure noted.
  2. A fixed quote names the sealant we propose and its movement class.
  3. Phasing is agreed so decks, floors or entrances can stay in use where needed.
  4. The failed seal is cut out and both joint faces cleaned back to sound material.
  5. Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
  6. Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.

Before we start on site

  • Confirm the product named in the specification
  • Let us know about inductions and permits
  • Arrange parking or a loading space

Get a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Ask for a quote

Related advice

What happens if it’s left?

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. Converted and older buildings near places like Coates tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Why choose Mastic Doctor in Coates

  • RAL and finish matching where the product range allows
  • CHAS accredited contractor
  • Fully insured, including public liability cover
  • Sealing commercial buildings since 2005

See how commercial sealant jobs are priced and how we’re accredited.

When something else is needed

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Joints too narrow for the movement, which need redesigning by the engineer
  • Crumbling edges that would give a new bead nothing sound to grip
  • Leaks coming from the membrane rather than the joint seal

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

What we seal

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

Surface by surface

Concrete and precast panel joints

Concrete edges can be weak or carry release agents that stop adhesion. We prepare the faces thoroughly and prime where the maker calls for it, so the new seal holds.

Podium joints

Podium decks are exposed and often trafficked. A sealant suited to both traffic and exposure is used.

Slabs, ramps and loading bays in Coates

At about 43 miles from central London, Coates is within reach of the capital. Warehousing clusters around the motorways that ring and radiate from London. Less than 3 miles from Coates 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.

On industrial estates such as Quell Farm Industrial Estate, which lies south-east of Coates, saw-cut floor joints, loading bay slabs and yard joints take the heaviest traffic. Across sites such as Station Approach Industrial Estate, 2.8 miles east of Coates, floor and movement joints can be sealed in phases so units keep working. Schools such as Fittleworth CofE Village School have movement joints in their walls and floors that are easy to overlook.

Coates is about 10 miles north of Littlehampton, in West Sussex. We send applicators to Coates for movement joints. Coates is one of 373 places in West Sussex on our list for movement joints. Brighton is covered too, some 21 miles away.

We take on movement joints across the RH20 postcode area, whatever the building. Nearby places we also cover include Lower Horncroft (1 mile east), Fittleworth (1 mile north-east), Bedham (1 mile north-east), Watersfield (2 miles south-east) and Coldwaltham (2 miles south-east). Nearby towns on our patch include Horsham (14 miles north-east), Worthing (12 miles south-east), Bognor Regis (12 miles south-west), Chichester (12 miles south-west), Littlehampton (10 miles south) and Lancing (14 miles south-east).

Near you in Coates

Recent enquiries here include premises near The Swan Hotel and the streets around them. The nearest railway station is Pulborough station, roughly 2.7 miles east. Well-known places in the area include Coates Castle (0.5 miles south-west) and Coultershaw Heritage Site (2 miles north-west). The countryside around Coates includes Bignor Hill and Amberley Wild Brooks.

Map of Coates © OpenStreetMap contributors

What affects the price in Coates

What shapes the price:

  • Access and working height
  • Working within restricted access windows
  • The total length or number of joints
  • Distance, for remote addresses

The price depends on the quantity of joints, how much old material needs removing and the access. Call for a fixed quote once you have the details.

Sending details for a quote

The more we know, the firmer the quote. When you get in touch, include:

  • The type of building and who uses it
  • Approximate linear metres or a joint schedule
  • The postcode of the building
  • The asbestos register, for older buildings

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or use the quote form.

Commercial clients in Coates

Building owners and managing agents use us on sealant work across single buildings or whole portfolios. One quote can cover more than one site, which keeps the paperwork simple.

CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Accreditations

Trusted. Accredited. Insured.