The Flints expansion joint sealing
Our CSCS-carded applicators take on expansion and movement joint sealing in walls, decks and floors in The Flints. Send details for a fixed quote.
- Leaks through car park deck joints onto the level below
- Layers of sealant in a movement joint
- Brittle, chalky sealant on external joints
Expansion joint sealing for The Flints sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Work for main contractors and building owners
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
Building owners and managing agents use us on everything from one building to a spread of sites around The Flints. Several sites can go on one quote, which keeps the paperwork simple.
Expansion joint sealing in The Flints
Width, depth and product all have to work together. Joint width must suit the movement and the movement class of the sealant while depth is limited by backing rod or, in shallow joints, a bond-breaker. For wider joints, many sealant makers recommend a width-to-depth ratio, often around 2:1 and the bead bonds to the sides, never the back. Most enquiries involve water getting into the wall through a failed joint and leaks through car park deck joints onto the level below, on car park decks and ramps, brickwork movement joints and podiums and floor movement joints. A single leaking joint is often how a building in The Flints first comes to us: we look at the rest while we are there and tell you what we find.
For a site near The Flints, measurements and photos up front mean one trip where possible, with the right materials on hand. Note joint widths and the traffic that uses them, and we will take it from there.
Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.
- Location
- The Flints (SG5)
- Region
- Hertfordshire
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Places near The Flints
What else we do in The Flints
When something else is needed
Some faults sit outside our scope, and we say so rather than covering them up:
- A joint that has to be widened or re-detailed before it can work
- Waterproofing layers buried beneath the sealant
- Proprietary pre-formed expansion joint systems
Not sure which it is? You can call the office on 01277 525 020 or email drawings and photos and we will tell you honestly.
Surfaces we seal
- Precast concrete panel joints
- Brickwork movement joints
- Blockwork control joints
- Cladding panel joints
- Podiums and floor movement joints
- Car park decks and ramps
Surface by surface
Internal floor movement joints
Floor joints include saw-cut joints and construction joints. Trafficked floor joints often get a semi-rigid filler, with a flexible sealant where movement is larger.
Concrete and precast panel joints
Precast panels often have surface residues that sealant won’t bond to. We prepare the faces thoroughly and prime where the maker calls for it and check the edges for soundness as we go.
Diagnose, treat, sign off
Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. For work around The Flints, we aim to finish in one visit, so photographs and measurements up front really help. Then the right materials arrive with us.
- 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.
- Old sealant and filler are cut out and the joint faces cleaned back to sound material.
- 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.
- Each joint is inspected and handed over with our 12-month guarantee.
Before we start on site
- For older buildings, check the asbestos register before work
- Move anything stored against the joints
- Explain the parking and delivery arrangements
Quotes
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Related advice
Looking after the joints
Problems stay small when the joints are checked regularly. Specifically:
- Put movement joints on the planned maintenance inspection round
- Record the sealant used and the date in the O&M file
- Leave barriers in place until fresh joint sealant has cured
- Plan racking layouts so feet don’t land on a joint
Our workmanship on movement joints carries a 12-month guarantee. Record which product went into which joints in the building file.
Joints sealed at the same time generally fail around the same time. It pays to check every joint, not just the obvious one, so the work can be planned rather than rushed. We can suggest an order, worst joints first.
What affects the price in The Flints
We price every job individually. The main factors are:
- Specialist products, such as fire-rated or hygienic sealants
- The size and state of each joint
- The site’s rules and procedures
- Any access equipment needed
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
What to include in your enquiry
Whether it’s one area or a whole building, these details speed things up:
- Approximate linear metres or a joint schedule
- A wide shot and a close-up of the area
- Any dates the work must fit around
- What the building is and how it’s used
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or speak to us on 01277 525 020 or send details through our quote form if you’d rather talk the job through.
Floors, slabs and movement joints in The Flints
The Flints lies roughly 32 miles out from central London. The roads out of London are lined with trade parks and distribution sheds. The Flints sits in one of the drier corners of the country, the South East. Even so, yard and car park joints are only sealed when they’re dry and clean, and winter de-icing salt on car parks and ramps works into any open joint.
For estates staff at a university like University Of Bedfordshire (4.3 miles south-west of The Flints), building and paving joints are part of the planned maintenance list. Business parks such as Butterfield Business Park (to the south-west of The Flints) have car parks, paved areas and long brick and panel elevations, all with movement joints. Hospital campuses such as Keech Hospice Care (3.7 miles west of The Flints) grow in stages, leaving movement joints wherever new blocks meet old.
The Flints is about 4 miles south-west of Hitchin, in Hertfordshire. Any commercial site in The Flints is covered, whether it’s a single job or part of a planned programme. Across Hertfordshire, 371 places are covered, The Flints among them. There’s a separate page for London, roughly 32 miles from The Flints.
We cover the SG5 postcode districts for movement joints. If your building is just outside The Flints, we cover Great Offley (1 mile east), Temple End (2 miles east) and Ley Green (2 miles south-east). Nearby towns on our patch include Hemel Hempstead (13 miles south), Stevenage (7 miles east), St Albans (12 miles south), Welwyn Garden City (11 miles south-east), Harpenden (8 miles south) and Hitchin (4 miles north-east).
What’s near The Flints
Around The Flints, our work takes us to commercial buildings near The Bull Public House, among other places. The closest station to The Flints is Luton station, about 4.1 miles south-west. Nearby you will also find Ravensburgh Castle (2.7 miles north-west) and John Dony Field Centre (2.9 miles south-west). For a walk, there’s Markham's Hill and Pegsdon Hills.
FAQs: The Flints
Is a smaller place like The Flints outside your area?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.
Do you cover business parks and estates near The Flints, such as Butterfield Business Park?
Yes. Estates, retail parks and business parks around The Flints, Butterfield Business Park among them, are all within reach. Photos and a short description are enough for a first look.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Do you offer coloured sealant?
It depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Do you take on multi-site work?
Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Does the weather affect joint sealing?
Weather matters for any external joint: rain, frost and condensation all stop sealant bonding. Indoor joints can typically carry on regardless.
When is resealing likely to be due?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.