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

Portmore floor joint sealing

Floor joint sealing and filling in warehouses, factories and industrial units throughout Portmore and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Unfilled floor joints collecting dirt and grit
  • Sealant pulled out along a truck route
  • Old filler gone hard, cracked or loose
1
Send details
Send the specification, photos or a marked-up plan.
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Floor joint sealing across Portmore

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

Doing it in-house

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.

About our floor joint sealing in Portmore

Forklifts and pallet trucks are hard on open joints. Every pass chips at the bare concrete edge until a crisp saw cut becomes a wide, broken groove. A properly filled joint carries the wheel over and protects both arrises. It also smooths the route for drivers and stock. Site teams most often ask us about untidy open joints in a retail unit and filler that has parted from one face, across joints along racking aisles, construction joints and loading bays. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Portmore is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

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

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Portmore (SO41)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

Cost factors for floor joints

Your fixed quote is built from the real scope. It allows for:

  • Which sealant the job calls for
  • Phasing around occupants
  • Whether old sealant has to be cut out first
  • Induction, permit and paperwork requirements

The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

What to include in your enquiry

To price the job accurately, we need to understand the site. Useful things to include:

  • Specification clauses that apply
  • Where the site is, with the postcode
  • When you need the work done
  • Rough lengths or quantities, or drawings if you have them

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email the details over.

FAQs: Portmore

Does the sea air around Portmore change the choice of sealant?

It can. Coastal exposure works external joints harder than inland weather. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Would you work within a site like Lymington New Forest Hospital?

Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Should floor joints be filled or sealed?

We decide joint by joint. Hard wheels need edge support, which points to a semi-rigid filler, and movement joints or perimeters need something flexible. The quote sets out what goes where.

Can you fill joints where the arrises have spalled?

A filler needs sound edges to grip. We’ll tell you if the joint edges need repairing first and set out how that affects the job.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.

How long does a job like this take?

The duration is planned around your programme and the access we’re given. You will have an expected duration with the quote.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

After the work

Once the work is signed off, these steps help:

  • Check joint lines on busy aisles regularly
  • Keep photographs of joints that look like they’re failing
  • Tell us about strong cleaning chemicals before we quote
  • Allow for topping up joints as a new slab settles

If a joint we filled starts to break up within 12 months, tell us and we will arrange a look. Beyond that, an inspection once or twice a year catches failing joints early.

Regular inspection catches failing fills before the edges go. We can quote a programme that starts with the busiest areas so nothing is left to fail.

On site: what to expect

Occupied buildings need a little choreography. We sign and contain the area we’re in, keep walkways clear and work section by section so the rest of the building stays in use. If others near Portmore need work, visits can be combined. A fixed quote is given before anything starts.

  1. A floor survey records every joint, its edges and what crosses it.
  2. The treatment and the zones are set out in a fixed quote.
  3. Old fill and packed debris come out until both faces are sound.
  4. Dust is vacuumed out and primer applied where specified.
  5. The joint is filled to its specified depth and trimmed level.
  6. We hand each phase back when it can take traffic.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Tell staff and tenants when we will be in
  • Clear stock, furniture or equipment away from the joints

Quotes

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 photographs and a few notes.

Get a price

Read more

What we can’t put right

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

  • A failing floor coating, which is a flooring contractor’s job
  • Slab panels that rock or move under load
  • Joint edges that have already broken away, which need repairing before filling (we will tell you if so)

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we will tell you honestly.

Joints and surfaces we work on

  • Retail and showroom floors
  • Forklift and pallet-truck routes
  • Joints along racking aisles
  • Loading bays
  • Construction joints
  • Saw-cut induced joints

For managing agents and facilities managers

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

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

Warehouse floors and decks around Portmore

The sea is no more than about 1 mile from Portmore. 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. Rainfall across the South East, Portmore included, is lower than in many parts of the UK. External slab and deck joints still need a dry, clean joint to seal, and winter de-icing salt on car parks and ramps works into any open joint.

For a school such as Southlands School, playground and building joints can be done in the holidays. Sites like Lymington New Forest Hospital (1 mile south-west of Portmore) carry ambulances, deliveries and visitors’ cars over their road and deck joints.

Portmore is about 2 miles north-east of Lymington, in Hampshire. Businesses, contractors and managing agents in Portmore use us for work on floor joints. 723 places across Hampshire fall within our area, Portmore among them. There’s a separate page for Southampton, about 11 miles away.

Postcode districts covered here: SO41 for floor joints. Buildings on Warborne Lane, Jordans Lane and Main Road are within our area. Nearby places we also cover include Warborne (1 mile west), Pilley (1 mile north-west), Bull Hill (1 mile north), Pilley Bailey (1 mile north) and Walhampton (1 mile south). A short drive away, we cover Eastleigh (15 miles north-east), Fareham (15 miles east), Totton (10 miles north), Hedge End (14 miles north-east), Romsey (15 miles north) and Hythe (8 miles north-east).

Near you in Portmore

In Portmore, that means premises near William Gilpin Church of England Primary School, Priestlands School and Walhampton Arms, among other places. For rail, the closest station is Lymington Town station, about 1.1 miles south-west of the centre. A little further out are Lymington New Forest Hospital (1 mile south-west) and Yarmouth Castle (4.8 miles south). Not far away are Boldre Foreshore.

Map of Portmore © OpenStreetMap contributors
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