Expansion Joint Sealing in Portmore
Expansion and movement joint sealing in walls, decks and floors throughout Portmore and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Debris jammed in movement joints
- Damp inside where a wall movement joint has failed
- Sealant pulling off the joint face
Expansion joint sealing for Portmore sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our expansion joint sealing in Portmore
A movement joint only works while its seal does. Once it fails, water, grit and debris get in; the joint jams, its edges take the load and the arrises spall. Resealing at the first signs of failure is far cheaper than repairing the material either side. We work on podiums and floor movement joints, brickwork movement joints and blockwork control joints, and the usual reasons a site gets in touch are car park joints leaking onto vehicles below and torn sealant in brick or block movement joints. A specialist sealant contractor works differently from a general builder: in Portmore, that means joint design, primers and backing rod as standard.
In and around smaller places like Portmore, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Whether it’s a farm store turned workshop or a storage unit, the joints need a product that suits the traffic.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.
- Location
- Portmore (SO41)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
After the work
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Keep traffic off new joints until the cure time is up
- Treat a small split as a warning, not a cosmetic issue
- Include every elevation and deck joint in periodic inspections
- Avoid parking heavy plant or pallets on joint lines
In warehouses, forklift and pallet-truck routes take the most wear. Keep racking feet and heavy point loads off joint lines.
Rain gets into walls through torn brick and block movement joints. It can surface inside as damp a long way from the joint, well after the seal first opened. Resealing promptly prevents internal damage.
Surface by surface
Car park decks and ramps
Water coming through deck joints is the usual first sign. We strip the old seal, prepare the edges and seal again flagging broken edges along the way.
Cladding panel joints
Metal and composite panels shift considerably as temperatures change. The joints need a low-modulus sealant with enough movement capability.
Floors, slabs and movement joints in Portmore
Portmore lies within about 1 mile of the sea. External movement joints in car parks, ramps and yards near the coast take salt and wind-driven rain on top of traffic, so it pays to keep them sealed. Rainfall across the South East, Portmore included, is lower than in many parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open.
In a school such as Southlands School, movement joints in brick, block and hall floors tend to be forgotten until they leak. A healthcare site such as Lymington New Forest Hospital (1 mile south-west of Portmore) depends on car parks, ramps and service yards whose joints take traffic all day.
Portmore is about 2 miles north-east of Lymington, in Hampshire. Looking for expansion joint sealing in Portmore? We can help, as we do across Hampshire. Our Hampshire coverage takes in 723 places, from busy centres to rural villages. Our Southampton page has more on work in that area, about 11 miles away.
Business premises anywhere in SO41 are within our area. We cover commercial and managed buildings on Warborne Lane, Jordans Lane and Main Road and the roads nearby. Close to Portmore, our area also takes in Warborne (1 mile west), Pilley (1 mile north-west), Bull Hill (1 mile north), Pilley Bailey (1 mile north) and Walhampton (1 mile south). Further afield, our area takes in 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).
Landmarks near Portmore
Around Portmore, our work takes us to commercial buildings near William Gilpin Church of England Primary School, Priestlands School and Walhampton Arms, among other places. The closest station to Portmore is Lymington Town station, roughly 1.1 miles south-west. Well-known places in the area include Lymington New Forest Hospital (1 mile south-west) and Yarmouth Castle (4.8 miles south). The countryside around Portmore includes Boldre Foreshore.
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:
- Crumbling edges that would give a new bead nothing sound to grip
- Damaged metal nosings or cover plates over a joint
- Joints too narrow for the movement, which need redesigning by the engineer
Not sure which it is? You can call 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.
Where we work in Portmore
- Car park decks and ramps
- Podiums and floor movement joints
- Brickwork movement joints
- Blockwork control joints
- Cladding panel joints
- Precast concrete panel joints
Owners, agents and contractors
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Also near Portmore
Also in Portmore
Your questions answered
Do you take on work at healthcare sites like Lymington New Forest Hospital?
Yes, hospitals are one of the sectors we cover. Each area is agreed with the ward or department and the estates team in advance.
Does the sea air around Portmore change the choice of sealant?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
Do you reseal car park expansion joints?
Yes. Tell us how the car park is used and which areas must stay open and we’ll plan around them.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.
How long does movement joint sealing take?
Expect a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing. Cure time before reopening is confirmed on the day.
Do you take on multi-site work?
Yes. Several buildings can share a single quote, and you deal with one contact throughout.
How long will the new sealant last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
From enquiry to sign-off
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes a day or so for a modest run of joints, and longer where decks, ramps or floors are done in phases, and our waste is bagged and taken away as we go. If others near Portmore need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- We assess the joints on site or from photographs, noting widths and how each has failed.
- You receive a fixed quote stating the product and the movement it is rated for.
- Where areas have to stay open, we agree a phased sequence before starting.
- The failed seal is cut out and both joint faces cleaned back to sound material.
- Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
- We check each joint with you, confirm the cure time and sign off under our 12-month guarantee.
What we need from you
- Have the specification and drawings to hand
- Tell us which areas need to stay in use
- Explain the parking and delivery arrangements
Get a fixed quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Related advice
Quoting for work in Portmore
The price varies from site to site. It mainly depends on:
- Any access equipment needed
- How much existing material needs removing
- Travel to remote or island sites
- Quantities, in metres or numbers
Pricing movement joints depends on quantities, condition and access, plus any specification you’re working to. Ask us for a fixed quote.
Sending details for a quote
However big the job, these details speed things up:
- The product your specification calls for
- Your programme or deadline
- Whether an asbestos survey exists
- What the building is and how it’s used
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, call the office on 01277 525 020 or send details through our quote form.