Expansion and movement joint sealing in Charlwood, Hampshire
We carry out expansion and movement joint sealing in walls, decks and floors in Charlwood and the surrounding area. Send photographs or drawings for a fixed quote.
- Layers of sealant in a movement joint
- Water dripping through deck or ramp joints
- Damp inside where a wall movement joint has failed
Expansion joint sealing across Charlwood
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Expansion joint sealing in Charlwood, done properly
Buildings and slabs are never completely still: temperature, moisture, shrinkage and loading all make materials grow and shrink. Expansion and movement joints are built in so the structure can move without cracking, and the sealant in them keeps water and debris out. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors for buildings in Charlwood. We work on precast concrete panel joints, blockwork control joints and podiums and floor movement joints, and the failures we’re asked to look at most are arrises breaking up along floor joints and brittle, chalky sealant on external joints. A specialist sealant contractor works differently from a general builder: in Charlwood, that means joint design, primers and backing rod as standard.
Around smaller places such as Charlwood, 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.
A 12-month guarantee applies to all our work. Should something we installed fail, call 01277 525 020 or email drawings and photos and we’ll come back to it.
- Where
- Charlwood (SO24)
- Wider area
- Hampshire
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Leave it or put it right?
A failed joint seal doesn’t mean the slab, panel or wall needs replacing. If the material either side is sound, a properly prepared reseal restores the joint. We will flag where edges need repair before sealing. Halls, stores and units around places like Charlwood may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
A quote for movement joints depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.
What you get with us
- Colours chosen to suit frames, cladding or finishes where possible
- Work to your specification and the manufacturer’s guidance
- Public liability insurance in place
- Health and safety: CHAS accredited
Read what affects the cost and how we’re accredited.
Charlwood: questions and answers
Is hospital work, at somewhere like Alton Community Hospital, something you do?
Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.
Does your area include sites such as Mansfield Business Park, near Charlwood?
Yes, sites like Mansfield Business Park are within our area, along with the rest of Charlwood. Send details of the unit and the work through our quote form for a quick quote.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email the details over. Include photographs or drawings if you have them.
How do you choose the sealant?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Can you work on car park ramps and decks?
Yes. We use a sealant designed for wheel loads and the expected movement, and phased work can be planned so parts of the car park stay in use.
What about RAMS and site documents?
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.
Does the weather affect the work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
What sets the cost
Your fixed quote is built from the real scope. It takes account of:
- Access and working height
- Phasing around occupants
- The product specified
- The size and state of each joint
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
What to include in your enquiry
For an accurate fixed quote, we need a clear picture of the site. Send us:
- How the joints are reached, and at what height
- Approximate linear metres or a joint schedule
- The asbestos register, for older buildings
- The site address and postcode
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, give us a call on 01277 525 020 or send details through our quote form.
Traffic, movement and joints around Charlwood
The South East is one of the drier parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open. At least three named trading, business or retail sites lie within about 3 miles of Charlwood. That puts plenty of warehouse floors, service yards and car parks close by, all with joints under traffic.
Phasing is what makes joint work possible on busy sites such as Lower Soldridge Business Park (2.7 miles north-west of Charlwood): one bay, aisle or car park row at a time. Parks like Mansfield Business Park, 2.4 miles to the north of Charlwood, combine paved areas, car parks and building elevations, each with joints that move.
Charlwood is about 6 miles south-west of Alton, in Hampshire. Our applicators travel to Charlwood for work on movement joints, handled exactly as we handle every other area. Our Hampshire coverage takes in 723 places, large and small. We also cover Southampton, some 19 miles away.
Work on movement joints is covered throughout SO24, whatever the building. If your building is just outside Charlwood, we cover Monkwood (1 mile south-west), Kitwood (1 mile north-west), Gilbert Street (1 mile north-west), Ropley (2 miles west) and West Tisted (2 miles south-west). Bigger towns within reach include Basingstoke (13 miles north), Winchester (12 miles west), Havant (15 miles south), Eastleigh (15 miles south-west), Horndean (12 miles south) and Alton (6 miles north-east).
Near you in Charlwood
Other landmarks nearby include Alton Community Hospital (4.7 miles north-east). The countryside around Charlwood includes Red Hill and Shutts Copse.
Our process
On arrival, 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 any cutting starts, and the work typically takes anything from part of a day to a couple of weeks, depending on joint lengths, widths and access. For work around Charlwood, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We look at the joints, their width and how they’ve failed.
- 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.
- 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.
- Each joint is inspected and handed over with our 12-month guarantee.
Before we start on site
- Agree which areas must stay open
- Let building users know which areas are affected
- Send asbestos survey details if the building is pre-2000
Getting a fixed quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, give us a call on 01277 525 020 or email us.
Advice
Aftercare for building managers
Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:
- Act on the first tear or lifting edge rather than waiting
- Include every elevation and deck joint in periodic inspections
- Keep product details with the building records for the next reseal
- Inspect exposed joints once the cold weather has passed
In warehouses, forklift and pallet-truck routes take the most wear. Keep racking feet and heavy point loads off joint lines.
When one joint fails, others of the same age are rarely far behind. It pays to check every joint, not just the obvious one. We will tell you which movement joints need doing now and which can wait.
Common problems we fix in Charlwood
Sometimes the sealant holds but the substrate breaks away. Weak or crumbling concrete, brick or render edges give the sealant nothing sound to grip, so we tell you if the edges need repairing first.
Clients usually get in touch after noticing one or more of the following:
- Arrises breaking up along floor joints
- Sealant pulling off the joint face
- Brittle, chalky sealant on external joints
- New sealant over old, now failing
For an estate such as Alton Community Hospital, 4.7 miles to the north-east of Charlwood, the joints in ramps, decks and long building elevations all need attention over time.
Before you book anyone
- Will RAMS and insurance details be available?
- Are they CHAS accredited or on Constructionline?
- Whether their applicators hold CSCS cards
- Their public liability cover
Places near Charlwood
What else we do in Charlwood
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, with CSCS-carded applicators on site.
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. Keys, access and contacts can be agreed in advance.