
Expansion and movement joint sealing in Ashwell, Hertfordshire
Expansion and movement joint sealing in walls, decks and floors across Ashwell, by CSCS-carded applicators. CHAS accredited and fully insured.
- Joints packed with grit and debris
- Torn sealant in brick or block movement joints
- Layers of sealant in a movement joint
Expansion joint sealing for Ashwell sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Expansion joint sealing in Ashwell
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, so failed seals soon lead to leaks onto the level below and broken edges. We reseal deck and ramp joints with a trafficable sealant chosen for the movement, phasing bays so the car park can stay in use. We work on podiums and floor movement joints, precast concrete panel joints and blockwork control joints, and the usual reasons a site gets in touch are layers of sealant in a movement joint and joints packed with grit and debris. Looking for mastic applicators who cover Ashwell? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Around Ashwell, most floor and movement joint jobs are single buildings or yards. Getting widths, depths and traffic details up front means one visit, not two.
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.
- Where
- Ashwell (SG7)
- Region
- Hertfordshire
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026

How a job runs
Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. What matters most for a job in Ashwell is a clear list of what needs doing. You’ll then get a fixed price for the work.
- 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.
- Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
- 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.
Preparing the site
- Tell us your opening times and when work is allowed
- Share the asbestos register for older buildings
- Have the specification and drawings to hand
Getting a fixed quote
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, phone 01277 525 020 or send photos by email.
Advice
What happens if it’s left?
Doing joint resealing alongside other planned works can save on access. Leaking joints need sealing now. Urgent joints now, the rest later, is often the sensible plan. In a smaller place such as Ashwell, getting a contractor back for a second visit takes time, so it’s worth dealing with every failing joint at once.
The price depends on how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote when you are ready.
Why appoint us
- Old sealant cut out, never sealed over
- Clear, fixed quotes
- Constructionline member
- Our applicators hold CSCS cards
Take a look at what affects the cost and our accreditations.
Towns and villages near Ashwell
More services for Ashwell
Work for main contractors and building owners
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
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 Ashwell can sit alongside others in a wider programme.
Common questions from Ashwell clients
Would you work within a site like Fairfield Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
Is Ashwell too far out for you?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.
Can you work on car park ramps and decks?
Yes, we do. Tyre loads, grit and de-icing salts make these some of the hardest joints to keep sealed and broken edges are flagged before sealing.
Will you come and look before quoting?
It depends on the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs normally get a visit.
Are your applicators CSCS-carded?
Yes. We use CSCS-carded applicators, as many construction sites ask for.
Are you CHAS accredited?
Yes. We’re CHAS accredited and a Constructionline member.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
Keeping the joints sound
Once the work is signed off, a little attention goes a long way:
- Keep racking legs and heavy point loads off floor joints
- Keep product details with the building records for the next reseal
- Leave barriers in place until fresh joint sealant has cured
- Look over external and deck joints after a hard winter
Debris does more harm to joint sealant than most people realise. Stones pressed into the bead by wheels or feet can puncture it, especially on car park decks and warehouse floors. Regular sweeping keeps joint lines clear.
External wall joints that fail let rain into the masonry and cavity. It can surface inside as damp a long way from the joint. Resealing promptly prevents internal damage.
Cost factors for movement joints
Before we quote, we look at:
- Working within restricted access windows
- Any access equipment needed
- Removal of failed or old sealant
- Location, for remote and island sites
No two sites price the same: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Details that help us quote
The more we know, the firmer the quote. When you get in touch, include:
- Whether an asbestos survey exists
- Rough lengths or quantities, or drawings if you have them
- The site address and postcode
- Access details, including height
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’ll arrange a site visit if anything is unclear.
Doing it in-house
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Expansion joint sealing in Ashwell: the local picture
Ashwell is in the South East, one of the UK’s drier regions. Outside joints in yards and car parks still have to be dry before sealing, and where de-icing salt is spread in winter, open joints let it in. Ashwell lies roughly 37 miles out from central London. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital.
Schools like Ashwell Primary School often have long brick elevations with movement joints that age quietly. Hospitals like Fairfield Hospital (4.8 miles south-west of Ashwell) have multi-storey or surface car parks whose joints carry vehicles round the clock.
Ashwell is about 5 miles north-east of Letchworth, in Hertfordshire. Commercial clients in Ashwell can call on us for movement joints, as part of our coverage of Hertfordshire. 371 places across Hertfordshire fall within our area, including Ashwell. Sites around London have their own page, about 37 miles away.
Postcode districts covered here: SG7. Buildings on High Street, Station Road and Alms Lane are within our area. Just outside Ashwell, we also work in Ashwell End (1 mile west), Bury End (2 miles west), Newnham (2 miles south-west), Caldecote (2 miles west) and Hinxworth (2 miles west). Bigger towns within reach include Stevenage (9 miles south), Hitchin (8 miles south-west), Letchworth (5 miles south-west), Letchworth Garden City (5 miles south-west), Stotfold (4 miles south-west) and Baldock (4 miles south).
Around Ashwell
In Ashwell, that means premises near Rose And Crown Public House, among other places. Ashwell’s nearest station is Ashwell & Morden station, about 2 miles east. Other landmarks nearby include Bygrave House (2.2 miles south) and Fairfield Hospital (4.8 miles south-west). The countryside around Ashwell includes Fox Covert.