Northney expansion joint sealing
Expansion and movement joint sealing in walls, decks and floors in Northney and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Water dripping through deck or ramp joints
- Movement joints with split or torn sealant
- Water getting into the wall through a failed joint
Expansion joint sealing near Northney
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Common problems we fix in Northney
Most movement joint failures come down to the joint stretching further than the sealant can take. Cohesive failure, a split through the centre, typically means the joint or product wasn’t right for the movement. The same product in the same joint tends to fail again unless width and product are reviewed.
Common reasons buildings call us in:
- Debris jammed in movement joints
- Rain penetration at brick or block movement joints
- Hardened, cracked sealant on exposed facades
- Movement joints with split or torn sealant
Across sites such as Solent Retail Park, 1.9 miles north-west of Northney, floor and movement joints can be sealed in phases so units keep working.
What your quote should include
- What site paperwork they can supply
- Their public liability cover
- What the guarantee covers, and for how long
- How joint depth will be controlled
Expansion joint sealing for commercial buildings in Northney
Every structure moves a little, all the time: they expand in the heat, shrink as they dry, and shift under load. Movement joints are where that movement is absorbed. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors on sites in Northney. The enquiries we see most involve brittle, chalky sealant on external joints and damp inside where a wall movement joint has failed, across precast concrete panel joints, podiums and floor movement joints and car park decks and ramps. Looking for mastic applicators who cover Northney? We’ve been sealing commercial buildings since 2005.
Around smaller places such as Northney, floor joints are often in barns and farm buildings turned into workshops, stores and offices. Whether it’s a farm store turned workshop or a storage unit, the joints need a product that suits the traffic.
The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Where
- Northney (PO11)
- Wider area
- Hampshire
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How a job runs
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Rural sites near Northney may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.
- The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
- Next, we fix a price and confirm the sealant we propose for the movement.
- The failed seal is removed and both faces are cleaned until sound and dry, and we tell you if any edges need repairing first.
- Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
- After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
- Finished joints are checked and backed by our 12-month guarantee.
What we need from you
- Explain the parking and delivery arrangements
- Clear stock, furniture or equipment away from the joints
- Confirm the product named in the specification
Quotes
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.
Advice
When something else is needed
Honesty saves time and money. Fresh joints won’t solve:
- Proprietary pre-formed expansion joint systems
- Broken or spalled joint edges, which need repairing before any sealant goes in
- Leaks coming from the membrane rather than the joint seal
If you are not sure, just call 01277 525 020 or email the details over and we will give you a straight answer.
Joints and surfaces we work on
- Car park decks and ramps
- Cladding panel joints
- Blockwork control joints
- Podiums and floor movement joints
- Precast concrete panel joints
- Brickwork movement joints
Looking after the joints
Your facilities or cleaning team can help the joints last. Share these points with them:
- Put movement joints on the planned maintenance inspection round
- Act on the first tear or lifting edge rather than waiting
- Inspect exposed joints once the cold weather has passed
- Brief car park operatives to protect joint lines during winter clearance
Floor joints on main traffic routes need watching more closely than the rest. Keep racking feet and heavy point loads off joint lines and flag chipped arrises before they spread.
On a multi-storey car park, a failed joint typically shows up as a leak onto the deck underneath. Salty water dripping through stains soffits and lands on parked vehicles and it can affect the structure over time. Sealing the joint promptly stops it at source.
Slabs, ramps and loading bays in Northney
Northney sits close to the coast, within about 1 mile. External movement joints in car parks, ramps and yards near the coast take salt and wind-driven rain on top of traffic, and edges left open tend to break up faster. Northney has at least three named business or industrial parks inside a 3-mile radius. Their warehouses, yards and car parks are exactly where joints take the most punishment.
Hospital campuses such as Elmleigh Hospital (2.1 miles north of Northney) grow in stages, leaving movement joints wherever new blocks meet old. For estates staff at a university like University of Portsmouth - Langstone Campus (4.1 miles south-west of Northney), building and paving joints are part of the planned maintenance list.
Northney is about 3 miles south-east of Havant, in Hampshire. Any commercial site in Northney is covered. Across Hampshire, 723 places are covered, including Northney.
We cover the PO11 postcode districts. For a building on Northney Lane, Spinnaker Grange and Northney Road or nearby, send details and we will quote for movement joints. We also cover North Hayling (1 mile south), Warblington (1 mile north), Tye (1 mile south), Stoke (1 mile south-west) and Langstone (1 mile north-west). Bigger towns within reach include Gosport (8 miles west), Havant (3 miles north-west), Fareham (10 miles west), Horndean (6 miles north), Waterlooville (5 miles north-west) and Petersfield (12 miles north).
What’s near Northney
In Northney, that means premises near Eames Farm and The Ship Inn. For rail, the closest station is Warblington station, about 1.7 miles north. A little further out are Havant Museum (1.7 miles north-west) and Havant War Memorial Hospital (2.1 miles north-west). Not far away are Hayling Billy.
Why act early in Northney
Re-sealing with the same product that failed is often a false economy. A higher movement class, or a design change by the engineer, may be needed and we’ll tell you honestly. Around Northney, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we’ll quote for the lot.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
Why appoint us
- Colours chosen to suit frames, cladding or finishes where possible
- Commercial sealant work since 2005
- Health and safety: CHAS accredited
- Work to your specification and the manufacturer’s guidance
Common questions from Northney clients
Does a coastal location like Northney affect which sealant is used?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We check the specified product suits the exposure and pay close attention to preparation.
Do you take on work at healthcare sites like Elmleigh Hospital?
Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.
Do you cover Northney?
Yes. We cover Northney, and you can give us a call on 01277 525 020 or send photos by email to get started.
Can the building stay open while you work?
Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
Does the weather affect the work?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Can you seal car park deck joints?
Yes, we do. Tyre loads, grit and de-icing salts make these some of the hardest joints to keep sealed.
Building owners, agents and FMs in Northney
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Northney can sit alongside others in a wider programme.
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.