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

Floor Joint Sealing contractors in Hilsea

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

  • A rough ride across broken joints
  • Old filler gone hard, cracked or loose
  • Loading bay joints breaking down
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Floor joint sealing for Hilsea sites

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

Building owners, agents and FMs in Hilsea

Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.

How we handle floor joint sealing in Hilsea

Concrete floors in warehouses and factories are cut into bays with saw cuts and day joints, and every one of those joints is an exposed edge under hard wheels. Our job is to put the right filler or sealant into them for the loads and the movement they see, so the arrises are supported and grit stays out. Site teams most often ask us about saw-cut joints left open and packed with grit and untidy open joints in a retail unit, on construction joints, forklift and pallet-truck routes and saw-cut induced joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Hilsea it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Small units near places like Hilsea are often converted farm buildings with new concrete floors. Joints in those slabs need a product suited to whatever runs over them, from pallet trucks to foot traffic.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Where
Hilsea (PO2, PO3, PO6)
Region
Portsmouth
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

When to call us in Hilsea

Left open, joints fill with grit, wrap and wood fragments. That debris is hard and levers at the edges as wheels pass so the arrises break sooner.

These are often picked up first by site or facilities staff:

  • Drivers complaining about joints on a route
  • Failing joints at loading bays and dock doors
  • Unfilled floor joints collecting dirt and grit
  • Cracked and crumbling joint fill

A campus such as University of Portsmouth, 2.5 miles south of Hilsea, has long runs of movement joint in its buildings, decks and paving.

What to look for in a quote

  • Will failed sealant be removed rather than covered?
  • Will RAMS and insurance details be available?
  • Whether their applicators hold CSCS cards
  • The named product and why it was chosen

Questions to ask before you appoint anyone

How a job runs

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, and the work typically takes anything from a day for one loading bay to several days for a large floor, split into phases. What matters most for a job in Hilsea is a clear list of what needs doing. You’ll then get a fixed price for the work.

  1. First comes a walk of the floor to record joint sizes, broken edges and traffic routes.
  2. The quote fixes the price, names the filler or sealant and shows how the floor will be zoned.
  3. We remove failed material and packed debris until sound concrete is exposed on both faces.
  4. We vacuum each run and prime it if the chosen product requires a primer.
  5. We fill each joint to depth and finish it flush so wheels roll straight across.
  6. The area is handed back once it has cured enough to take traffic.

Preparing the site

  • Send your site hours and access windows
  • Agree which areas must stay open
  • Send any specification or drawings in advance

Request a quote

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to give us a call on 01277 525 020 or email us.

Ask for a quote

Advice

When to bring in a specialist

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Hilsea: questions and answers

Does a coastal location like Hilsea affect which sealant is used?

It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. We check the specified product suits the exposure and pay close attention to preparation.

Can you take on a job at a hospital such as Queen Alexandra 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.

How long before trucks can use the joints?

Cure times vary with the product and how cold the slab is. We’ll give you a time for each zone when we agree the phasing.

Is it fine to apply new sealant on top of old?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

How long will the new sealant last?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Why has the filler pulled away from one side?

On newer slabs, the concrete keeps shrinking after the joints are filled, so a semi-rigid filler can part from one face. It is typically dealt with by topping up.

Warehouse floors and decks around Hilsea

With the shore within about 1 mile, Hilsea 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, which is why split joints are worth sealing before the edges deteriorate. Hilsea is about 63 miles from central London. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital; their floors carry heavy traffic every shift.

Large sites such as Queen Alexandra Hospital (to the north of Hilsea) have car parks, service roads and long elevations with movement joints in brick and panels. If you manage units on an estate such as Limberline Industrial Estate (less than half a mile east of Hilsea), the floor joints under forklifts and pallet trucks and the slab joints in the yard are the ones to watch.

Hilsea is about 2 miles north of Portsmouth, in Portsmouth. We cover Hilsea and the rest of Portsmouth, with the same fixed quotes and 12-month guarantee as everywhere else. Hilsea is one of 19 places we cover in Portsmouth.

Commercial sites across PO2, PO3 and PO6 are covered. Buildings on Vita Road, Conan Road and Arras Road are within our area for floor joints. Close to Hilsea, our area also takes in Cosham (1 mile north), North End (1 mile south-west), Tipner (1 mile south-west), Wymering (1 mile north) and Rudmore (1 mile south-west). Nearby towns on our patch include Southsea (3 miles south), Portsea (3 miles south-west) and Portsmouth Point (3 miles south-west).

Local landmarks in Hilsea

Recent enquiries here include premises near Alexandra Park, Trafalgar School and Coach and Horses pub. The nearest railway station is Hilsea station, roughly 0.5 miles east of the centre. Well-known places in the area include World War I Remembrance Centre (0.8 miles east) and Tricorn Centre (2.1 miles south-west). Green spaces nearby include Milton Locks and Portsdown Hill.

Map of Hilsea © OpenStreetMap contributors

When it isn’t the sealant

Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:

  • Broken concrete either side of the joint
  • Damaged or worn floor coatings and screeds
  • Cracks across panels caused by settlement or overload

Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we will tell you honestly.

Joints and surfaces we work on

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

What the job involves on each surface

Forklift and pallet-truck routes

Joints on busy routes need a fill that sits flush and resists impact. We match the product to the wheel types and the traffic.

Construction joints

Day joints sit where one section of slab was cast against another. They can move more than saw cuts, and that shapes the product choice.

Accreditations

Trusted. Accredited. Insured.