Benslow expansion joint sealing
Expansion joint sealing for Benslow, from a contractor working since 2005. Fully insured and CHAS accredited.
- Layers of sealant in a movement joint
- Joints packed with grit and debris
- Torn sealant in brick or block movement joints
Expansion joint sealing across Benslow
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How the quote is worked out
We price every job individually. The main factors are:
- Whether the work must be split into stages
- Backing rod, priming and other preparation
- The site’s rules and procedures
- Removal of failed or old sealant
The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
Before you send an enquiry
Good information means a firmer quote. When you get in touch, include:
- Photos of the joints, close up and from further back
- Anything awkward about access or site hours
- When you need the work done
- What the building is and how it’s used
For a fixed quote, call 01277 525 020 or send photos by email, telling us the site location and the nature of the job. Our quote form is another easy route.
Expansion joint sealing in Benslow
If you need expansion joint sealing in Benslow, start with photos and joint lengths. We will come and look where photographs don’t show enough, then send a fixed quote that names the sealant. You can also ring 01277 525 020 or send details through our quote form to talk the joints through. We work on car park decks and ramps, brickwork movement joints and podiums and floor movement joints, and the failures we’re asked to look at most are sealant pulling off the joint face and water getting into the wall through a failed joint. For commercial sealant work in Benslow, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Around places the size of Benslow, joints that need sealing tend to be in rural business units, farm buildings put to commercial use, schools and community buildings. Concrete floors and yards in these buildings move and crack like any others.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Benslow (SG4, SG5)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Questions we’re asked in Benslow
Must our site in Benslow stop work while the joints are done?
Usually not: we work in sections and hand each one back once it has cured. Tell us which hours and entrances we can use and we will plan from there.
Can you take on a job at a hospital such as Pinehill Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
What timescale should we allow for resealing expansion joints?
It typically takes a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints. Timings are set out in the quote along with the phasing plan.
Do you use silicone or polyurethane in movement joints?
Whatever suits the joint and the specification. We name the proposed product in the quote, so you know what’s going in.
What causes movement joint sealant to fail?
The common causes are poor preparation, three-sided adhesion, the wrong movement class and weathering. Working out the cause comes first since each needs a different fix.
What site paperwork can you supply?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Do you seal on top of existing sealant?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Expansion joint sealing around Benslow: how the place shapes the job
Benslow lies roughly 32 miles out from central London. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital, and their floor joints take forklift and pallet-truck traffic all day. Benslow is in the South East, one of the UK’s drier regions. Even so, yard and car park joints are only sealed when they’re dry and clean, while winter salting gets into any joint left open.
In a school such as William Ransom Primary School, movement joints in brick, block and hall floors tend to be forgotten until they leak.
Benslow is about 1 mile east of Hitchin, in Hertfordshire. We cover Benslow and the rest of Hertfordshire, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 371 places in Hertfordshire, large and small. There’s a separate page for London, about 32 miles away.
If you need expansion joint sealing in SG4 and SG5, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Buildings on Water Lane, Riddy Lane and The Avenue are within our area for movement joints. Access to Benslow is via the A505, so getting applicators and materials to site is simple. Sites close to Benslow are covered too, including Hitchin (1 mile west), Poets Estate (1 mile east), Walsworth (1 mile north-east), Bearton (1 mile north-west) and Westmill (1 mile north-west). A short drive away, we cover Stevenage (5 miles south-east), St Albans (14 miles south), Welwyn Garden City (11 miles south), Harpenden (10 miles south), Hatfield (13 miles south) and Hertford (13 miles south-east).
Near you in Benslow
In Benslow, that means premises near St Mary's Church, Kingshott School and Hitchin Girls' School and the streets around them. Nearby too are The Albert pub (under half a mile north-west) and Butts Close (0.8 miles west). Benslow has its own railway station: Hitchin station. Well-known places in the area include Wymondley Castle (1.4 miles south-east) and Lister Hospital (2.8 miles south-east). For a walk, there’s Markham's Hill and Purwell Ninesprings.
Other services in Benslow
Different surfaces, different methods
Concrete and precast panel joints
Concrete edges can be weak or carry release agents that stop adhesion. We prepare the faces thoroughly and prime where the maker calls for it.
Internal floor movement joints
Wheeled traffic chips floor joint edges that aren’t supported. The right filler or sealant for the traffic and movement protects them flagging broken arrises before sealing.
What happens if it’s left?
Resealing is typically the answer, not replacing the element. If the material either side is sound, a properly prepared reseal restores the joint. We will flag where edges need repair before sealing. For buildings in places like Benslow, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why choose Mastic Doctor in Benslow
- Constructionline member
- Failed material removed, not covered up
- 12 months’ guarantee on every job
- Fully insured, including public liability cover
Do you need expansion joint sealing in Benslow?
When a bead pulls away from one face, it has lost adhesion. Dusty, damp or contaminated faces, a missing primer and three-sided adhesion are the usual causes.
Typical triggers for a call:
- Brittle, chalky sealant on external joints
- Water getting into the wall through a failed joint
- Chipped joint edges on forklift routes
- Joints where the bead has lost adhesion
Hospitals like Pinehill Hospital (under half a mile south-east of Benslow) have multi-storey or surface car parks whose joints carry vehicles round the clock.
What to look for in a quote
- How they’ll work around occupants
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Whether their applicators hold CSCS cards
- How long is the guarantee, and what does it include?
When it isn’t the sealant
We check first that sealant really is the fix. It isn’t the answer for:
- Proprietary pre-formed expansion joint systems
- Crumbling edges that would give a new bead nothing sound to grip
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
If you are not sure, just phone 01277 525 020 or send details through our quote form and we will give you a straight answer.
Surfaces we seal
- Cladding panel joints
- Car park decks and ramps
- Brickwork movement joints
- Precast concrete panel joints
- Podiums and floor movement joints
- Blockwork control joints
Our process
When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself usually taking a short visit for a handful of joints, or several days or more for a car park deck or long runs of facade joints. Work in places the size of Benslow is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- First, the joints are inspected for width, movement and the type of failure.
- You get a fixed quote with the product and its movement capability stated.
- The failed seal is removed and both faces are cleaned until sound and dry, flagging any broken edges that need repair before sealing.
- Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
- Where the maker calls for primer, it’s applied first, then the bead goes in and is tooled to a concave finish.
- We check every joint before sign-off, and the work carries our 12-month guarantee.
Getting the site ready
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
- Point out any areas we must not close
Ask for a quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or email us.