Primrose Hill expansion joint sealing
Expansion and movement joint sealing in walls, decks and floors in Primrose Hill. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Leaks through car park deck joints onto the level below
- New sealant over old, now failing
- Spalled or broken joint edges in floors and decks
Need expansion joint sealing in Primrose Hill?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Diagnose, treat, sign off
When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work usually takes a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing. In Primrose Hill, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
- You get a fixed quote with the product and its movement capability stated.
- We strip out the old seal and prepare the faces.
- We control the depth with backing rod or, in shallow joints, bond-breaker tape.
- Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
- Finished joints are checked and backed by our 12-month guarantee.
Before we start on site
- Warn occupants and staff about the work
- Tell us your opening times and when work is allowed
- Point out any areas we must not close
Get a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Advice
How we handle expansion joint sealing in Primrose Hill
Joints in car park decks and ramps are among the hardest-working in any building. Wheel loads, grit and de-icing salts attack the seal and the concrete either side. A sealant suited to traffic and the expected movement goes in. If you are dealing with torn sealant in brick or block movement joints and brittle, chalky sealant on external joints, we can put it right, whatever the surface. Searching for sealant specialists in Primrose Hill? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
Distribution and trade units on London’s edges, and deck car parks across the city, hold most of its floor and slab joints. In Primrose Hill, as everywhere in London, access, loading and the ULEZ all come into the plan.
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.
- Location
- Primrose Hill (NW3, NW1, NW8)
- Wider area
- Greater London
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
What happens if it’s left?
A failed joint seal doesn’t mean the slab, panel or wall needs replacing. Where the edges are sound, cutting out and resealing is enough. We will flag where edges need repair before sealing. Failed sealant in a building in Primrose Hill can quickly affect neighbours, tenants or the floor below. Putting it right early is less disruptive than dealing with the consequences.
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Why us?
- Commercial sealant work since 2005
- CHAS accredited contractor
- A Constructionline member, so easy to vet
- Failed material removed, not covered up
Read how commercial sealant jobs are priced or how we’re accredited.
What affects the price in Primrose Hill
A fixed quote reflects the actual work. It takes account of:
- Access and working height
- Which sealant the job calls for
- Quantities, in metres or numbers
- The site’s rules and procedures
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
What to include in your enquiry
A few photos plus some basic facts will normally do. It helps to include:
- Anything awkward about access or site hours
- The asbestos register, for older buildings
- Any dates the work must fit around
- The type of building and who uses it
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, ring 01277 525 020 or email drawings and photos.
Your questions answered
Can you work on a hospital site such as Hospital of St John and St Elizabeth?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Do you take on jobs in Primrose Hill where loading and access are tightly controlled?
Yes, most London buildings have access rules of some kind, and we plan around them. Share the building’s contractor rules and we will work to them.
Who decides which product is used?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
What sealant do you use in movement joints?
It depends on the movement, exposure and traffic. Low-modulus neutral-cure silicone suits many facade joints, while polyurethane is common in trafficked floor and deck joints unless the specification names something else.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Do the joint edges need to be sound before sealing?
The edges have to be sound. If they’re damaged, we’ll say so before any sealing, so the new seal has something to grip.
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.
Floors, slabs and movement joints in Primrose Hill
In London, decks, bays and service yards typically have to keep running, so joints are sealed in sections with each area handed back once cured. The 3 miles around Primrose Hill take in at least three named trading estates, business parks or retail parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.
Parks like Regis Road Business Park (1 mile north-east of Primrose Hill) combine paved areas, car parks and building elevations, each with joints that move. Campuses like Regent's University London (to the south of Primrose Hill) mix old and new buildings, with movement joints wherever they meet. Another example is Hannover Industrial Estate, which lies east of Primrose Hill, where floors and yards would be done in stages around the occupiers.
Primrose Hill is about 1 mile south-east of Hampstead, in Greater London. We cover commercial sites throughout Primrose Hill, whether it’s a single job or part of a planned programme. We work across 764 places in Greater London, large and small.
We cover the NW3, NW1 and NW8 postcode districts. For a building on Eton Road, Oval Road and Regal Lane or nearby, we can quote for movement joints. With the A5205 nearby, Primrose Hill is straightforward for us to reach. Sites close to Primrose Hill are covered too, including Haverstock (1 mile north), Belsize Park (1 mile north), Chalk Farm (1 mile north-east), South Hampstead (1 mile west) and Swiss Cottage (1 mile west). A short drive away, we cover London (4 miles south-east), Kensington (3 miles south-west), Shoreditch (4 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).
Around Primrose Hill
Recent enquiries here include premises near Cecil Sharp House, Haverstock School and Regent's Park and the streets around them. Nearby too are St. Mary's Town and Country School (0.5 miles north-west) and Princess of Wales pub (less than half a mile east). The nearest railway station is Kentish Town West station, roughly 0.7 miles north-east of the centre. A little further out are Montfichet's Tower (3.1 miles south-east) and Wellington Hospital (0.7 miles south-west). Open spaces near Primrose Hill include Parliament Hill and Adelaide Nature Reserve.
Also near Primrose Hill
Also in Primrose Hill
When it isn’t the sealant
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- A joint that has to be widened or re-detailed before it can work
- Broken or spalled joint edges, which need repairing before any sealant goes in
- Proprietary pre-formed expansion joint systems
If you are not sure, just phone 01277 525 020 or use the quote form and we will give you a straight answer.
Joints and surfaces we work on
- Car park decks and ramps
- Precast concrete panel joints
- Blockwork control joints
- Brickwork movement joints
- Cladding panel joints
- Podiums and floor movement joints
Commercial clients in Primrose Hill
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules.
Different surfaces, different methods
Car park decks and ramps
Car park joints are some of the hardest-working joints in any building. A trafficable sealant suited to the movement goes in with bays done in phases so the car park keeps running.
Concrete and precast panel joints
Joints between precast panels open and close with temperature and loading. The sealant needs the right movement capability and a controlled depth.