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

Expansion joint sealing in Elmer

Expansion and movement joint sealing in walls, decks and floors throughout Elmer and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Leaks through car park deck joints onto the level below
  • Previous reseals laid over old sealant
  • Water getting into the wall through a failed joint
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Expansion joint sealing for businesses in Elmer

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

When it isn’t the sealant

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

  • Proprietary pre-formed expansion joint systems
  • Structural movement beyond what the joints were designed for (that needs a structural engineer)
  • Concrete or masonry repairs along the arrises

If in doubt, ring 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.

Surfaces we seal

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

About our expansion joint sealing in Elmer

Joint design counts for as much as the sealant itself. The joint has to be wide enough for the expected movement and the sealant’s movement capability, and depth is controlled using closed-cell backing rod, or bond-breaker tape in shallow joints. For wider joints, many sealant makers recommend a width-to-depth ratio, often around 2:1. We work on brickwork movement joints, car park decks and ramps and precast concrete panel joints, and the failures we’re asked to look at most are sealant peeling off one face of the joint and debris jammed in movement joints. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Elmer is the same: the right product in a properly prepared joint.

Around places the size of Elmer, joints that need sealing tend to be in rural business units, farm buildings put to commercial use, schools and community buildings. Their slabs and walls still need movement joints that work.

Every job we finish is backed by a 12-month workmanship guarantee, in Elmer as everywhere else we work. If our installation lets you down in that time, we return and fix it.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Elmer (PO22)
Wider area
West Sussex
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026

Questions we’re asked in Elmer

Is Elmer too far out for you?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Can you take on a job at a hospital such as Bognor Regis War Memorial Hospital?

Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Are you fully insured?

Yes. Mastic Doctor is fully insured, public liability included.

When is resealing likely to be due?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

What will the job cost?

There isn’t a price list, because every site is different. Send photos or drawings and we’ll price it at a fixed figure.

Do you hold CHAS accreditation?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member.

Surface by surface

Internal floor movement joints

Forklift and pallet-truck wheels break unsupported joint edges. We match the product to the traffic and the movement.

Joints between different materials

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

Diagnose, treat, sign off

Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a site in Elmer, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  1. The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
  2. Next, we fix a price and confirm the sealant we propose for the movement.
  3. The failed seal is removed and both faces are cleaned until sound and dry, 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. After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
  6. Each joint is inspected and handed over with our 12-month guarantee.

Before we start on site

  • Send any specification or drawings in advance
  • For older buildings, check the asbestos register before work
  • Let building users know which areas are affected

Getting a fixed quote

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or speak to us on 01277 525 020 or send details through our quote form if you’d rather talk the job through.

Ask for a quote

Related advice

Warehouse floors and decks around Elmer

With the shore within about 1 mile, Elmer counts as a coastal location. Near the sea, external slabs, ramps and decks see salt air and driven rain as well as their usual loads, and edges left open tend to break up faster. Less than 3 miles from Elmer there are at least three named estates and business parks. Their warehouses, yards and car parks are exactly where joints take the most punishment.

On industrial estates such as Rudford Industrial Estate, which lies north-east of Elmer, saw-cut floor joints, loading bay slabs and yard joints take the heaviest traffic. Hospital campuses such as Bognor Regis War Memorial Hospital, 2.9 miles west of Elmer, grow in stages, leaving movement joints wherever new blocks meet old.

Elmer is about 3 miles east of Bognor Regis, in West Sussex. Elmer sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 373 places across West Sussex fall within our area, including Elmer. There’s a separate page for Portsmouth, roughly 20 miles from Elmer.

We take on movement joints across the PO22 postcode area, whatever the building. Among the streets we cover are Elmer Road, Ancton Lane and East Avenue. Nearby places we also cover include Middleton-on-Sea (1 mile west), Bilsham (1 mile north), Atherington (1 mile north-east), Flansham (2 miles north-west) and Horsemere Green (2 miles north-east). Further afield, our area takes in Worthing (9 miles east), Bognor Regis (3 miles west), Chichester (8 miles north-west), Selsey (9 miles south-west), Littlehampton (4 miles east) and Shoreham-by-Sea (15 miles east).

Around Elmer

Around Elmer, our work takes us to commercial buildings near Felpham Community College. Elmer’s nearest station is Ford station, about 2.9 miles north-east. Well-known places in the area include Bognor Regis Museum (3.1 miles west) and Bognor Regis War Memorial Hospital (2.9 miles west).

Map of Elmer © OpenStreetMap contributors

What we’re called out for in Elmer

With no backing rod or bond-breaker in place, sealant grips the base of the joint too. Sealant fixed to the base and sides can’t flex, so it tears so backing is set before sealing.

Things that typically lead to an enquiry:

  • Layers of sealant in a movement joint
  • Arrises breaking up along floor joints
  • Car park joints leaking onto vehicles below
  • Expansion joints split through the centre of the bead

Campuses like University of Chichester (Bognor Campus) (to the west of Elmer) mix old and new buildings, with movement joints wherever they meet.

Before you book anyone

  • What the guarantee covers, and for how long
  • Whether primer will be used where the manufacturer specifies it
  • Is the sealant right for the movement and the substrate?
  • Their pre-qualification and accreditations

Our contractor checklist

Why act early in Elmer

Resealing is usually the answer, not replacing the element. Where the edges are sound, cutting out and resealing is enough. If the edges have broken up, we will tell you they need repairing first. In a smaller place such as Elmer, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

Why choose Mastic Doctor in Elmer

  • One contact handling all your sites
  • Sealing commercial buildings since 2005
  • Coloured sealants to suit the setting, where available
  • Matching to RAL references, product permitting

Read what affects the cost or our accreditations and insurance.

Building owners, agents and FMs in Elmer

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Elmer can sit alongside others in a wider programme across West Sussex.

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Accreditations

Trusted. Accredited. Insured.