Expansion Joint Sealing in Portsmouth Point
Expansion and movement joint sealing in walls, decks and floors throughout Portsmouth Point and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Previous reseals laid over old sealant
- Sealant pulling off the joint face
- Leaks through car park deck joints onto the level below
Expansion joint sealing across Portsmouth Point
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Expansion joint sealing for commercial buildings in Portsmouth Point
For movement joints in Portsmouth Point, photographs and approximate lengths are the best start. We’ll come and look where photographs don’t show enough before issuing a fixed quote. You can also call the office on 01277 525 020 or email the details over to talk the joints through. We work on podiums and floor movement joints, blockwork control joints and car park decks and ramps, and the usual reasons a site gets in touch are spalled or broken joint edges in floors and decks and joints where the bead has lost adhesion. For commercial sealant work in Portsmouth Point, you deal with one contact from quote to sign-off, whether it’s one building or several.
Rural business units around smaller places such as Portsmouth Point often have new slabs laid inside older buildings. Joints in those slabs need a product suited to whatever runs over them, from pallet trucks to foot traffic.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Where
- Portsmouth Point (PO1, PO5, PO12)
- Region
- Portsmouth
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Expansion joint sealing around Portsmouth Point: what changes locally
Portsmouth Point is within about 1 mile of the coast. Open joints in coastal car parks and yards let in salt-laden water as well as grit, which is why split joints are worth sealing before the edges deteriorate. Portsmouth Point is in the South East, one of the UK’s drier regions. External joints still wait for dry conditions, while winter salting gets into any joint left open.
For an estate such as Gosport War Memorial Hospital (1.8 miles west of Portsmouth Point), the joints in ramps, decks and long building elevations all need attention over time. Warehouse floors on estates like Cranbourne Industrial Estate (to the west of Portsmouth Point) carry pallet trucks and forklifts over every saw-cut joint.
Portsmouth Point is about 2 miles west of Southsea, in Portsmouth. We cover Portsmouth Point and the rest of Portsmouth, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Portsmouth coverage takes in 19 places, large and small.
We cover the PO1, PO5 and PO12 postcode districts for movement joints. Buildings on Park Road, Nobbs Lane and Bath Square are within our area. If your building is just outside Portsmouth Point, we cover Portsea (1 mile north), Clayhall (1 mile south-west), Haslar (1 mile south-west), Alverstoke (2 miles south-west) and Privett (2 miles west). Further afield, our area takes in Hilsea (3 miles north-east), Wymering (4 miles north), Paulsgrove (4 miles north), Cosham (4 miles north-east), Drayton (5 miles north-east) and Farlington (5 miles north-east).
Landmarks near Portsmouth Point
In Portsmouth Point, that means premises near Charter Academy, Portsmouth Grammar School and Bridge Tavern and the streets around them. There’s a railway station in Portsmouth Point itself: Portsmouth Harbour station. Other landmarks nearby include Southsea Castle (1.2 miles south-east) and Portsmouth Museum And Art Gallery (under half a mile east). For a walk, there’s Portsdown Hill and Milton Locks.
When to bring in a specialist
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Common questions from Portsmouth Point clients
Do you take on work at healthcare sites like Gosport War Memorial Hospital?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Does the sea air around Portsmouth Point change the choice of sealant?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. We check the specified product suits the exposure and pay close attention to preparation.
Do you cover Portsmouth Point?
Yes. Portsmouth Point falls within our area, and the simplest way to start is to give us a call on 01277 525 020 or email us.
Is movement joint sealing guaranteed?
A 12-month guarantee covers our workmanship. Regular sweeping and inspection help the joints last.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
What hours do you work?
The office is staffed Monday to Friday, from 8am until 5pm. Tell us your site hours and access windows and the work will be fitted around them.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Surface by surface
Joints between different materials
Some mixed-material joints suit a hybrid sealant. The choice depends on the substrates and how much the joint moves.
Concrete and precast panel joints
Concrete edges can be weak or carry release agents that stop adhesion. Proper cleaning and primer where specified give a sound bond and check the edges for soundness as we go.
Also near Portsmouth Point
Other services in Portsmouth Point
For managing agents and facilities managers
Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
From enquiry to sign-off
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. What matters most for a job in Portsmouth Point is a clear list of what needs doing. You will then get a fixed price for the work.
- Photos, joint lengths and drawings come to us, or we visit.
- We compare each joint’s width with the movement and the sealant’s capability, and flag anything that needs an engineer.
- Old sealant and debris are cut out of every joint.
- Any broken arrises or friable edges are flagged before work goes further.
- A sealant suited to the movement and traffic is laid to depth and tooled.
- Areas reopen once cured, and the work carries our 12-month guarantee.
What we need from you
- Tell staff and tenants when we will be in
- Confirm the product named in the specification
- Let us know about inductions and permits
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Advice
Signs you need expansion joint sealing in Portsmouth Point
Sometimes the sealant holds but the substrate breaks away. If the edge of the joint is friable, the bond fails with it, so we tell you if the edges need repairing first.
Look out for the following:
- Joints where the bead has lost adhesion
- Weathered movement joint sealant that no longer flexes
- Damp inside where a wall movement joint has failed
- Car park joints leaking onto vehicles below
At a retail site such as Tricorn Centre, 1 mile north-east of Portsmouth Point, trolleys, cages and cars run over floor and slab joints all day.
Questions to ask before you book
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Proof of insurance
- Are they CHAS accredited or on Constructionline?
- The named product and why it was chosen
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:
- Concrete or masonry repairs along the arrises
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
- Joints too narrow for the movement, which need redesigning by the engineer
If you are not sure, just phone 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Podiums and floor movement joints
- Cladding panel joints
- Precast concrete panel joints
- Car park decks and ramps
- Brickwork movement joints
- Blockwork control joints