
Expansion and movement joint sealing in South Ham, Hampshire
Expansion and movement joint sealing in walls, decks and floors in South Ham. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Spalled or broken joint edges in floors and decks
- Leaks through car park deck joints onto the level below
- Hardened, cracked sealant on exposed facades
Expansion joint sealing across South Ham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How the job changes by surface
Cladding panel joints
Cladding panels move more than masonry as they heat and cool. The joints need a low-modulus sealant with enough movement capability, and we will confirm the colours available for the specified product.
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, phased so parts of the car park stay open.
About our expansion joint sealing in South Ham
Floor movement joints in warehouses, retail and public buildings carry wheeled traffic. Without a sound filler, joint edges chip and spall under load so the product has to suit both the traffic and the movement. We’ll tell you if the edges need repairing before sealing. We work on precast concrete panel joints, podiums and floor movement joints and cladding panel joints, and the failures we’re asked to look at most are joints where the bead has lost adhesion and new sealant over old, now failing. Searching for sealant specialists in South Ham? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Around South Ham, most floor and movement joint jobs are single buildings or yards, so we gather photographs and measurements first. That way the right materials come on the day and the job is done in one visit where possible.
A 12-month guarantee applies to all our work. Should something we installed fail, call 01277 525 020 or use the quote form and we’ll come back to it.

- Where
- South Ham (RG22, RG21, RG23)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Also near South Ham
Other services in South Ham
Common questions from South Ham clients
Is South Ham off your patch?
Not at all. South Ham is within our area. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Can you work at a site such as West Ham Industrial Estate, by South Ham?
Yes. Estates, retail parks and business parks around South Ham, West Ham Industrial Estate among them, are all within reach. To start, just ring 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
Are your applicators CSCS-carded?
Yes. If you need card details for site access, tell us and we’ll confirm them with the quote.
How much does the work cost?
Every job gets its own fixed quote. For yours, ring 01277 525 020 or email us.
Can you quote from photographs?
It depends on the job. Simple work can often be priced from photos, and bigger or more complex jobs usually get a visit.
What exactly is a movement joint?
It’s a deliberate gap that lets the structure move without cracking. Expansion joint is a name often used for the same thing and both need a flexible seal.
Building owners, agents and FMs in South Ham
Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so the building keeps working while we do.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around South Ham. Several sites can go on one quote, so there’s one set of paperwork to deal with.
When to call us in South Ham
Sealant peeling cleanly off one side is an adhesion failure. Dusty, damp or contaminated faces, a missing primer and three-sided adhesion are the usual causes.
Common reasons buildings call us in:
- Sealant pulling off the joint face
- Joints packed with grit and debris
- New sealant over old, now failing
- Brittle, chalky sealant on external joints
Sites like Basingstoke and North Hampshire Hospital, 1.6 miles to the north of South Ham, carry ambulances, deliveries and visitors’ cars over their road and deck joints.
What your quote should include
- Their approach to joint depth and backing
- How the joint faces will be prepared and primed
- How long is the guarantee, and what does it include?
- Who will actually carry out the work
Why act early in South Ham
Leaving a failed movement joint rarely stays a small problem. Water and debris get in, the joint jams and the edges spall and the job grows to repairs as well as sealing. Acting at the first split keeps the cost down. A failed joint lets water into a building whatever its size. Early resealing avoids the damage that follows a leak.
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why appoint us
- Work to your specification and the manufacturer’s guidance
- Colour agreed before work starts
- Standard and matched colours in many product ranges
- CHAS accredited
Read our cost guide and how we’re accredited.
Honest limits
Before quoting, we check that sealant is the right answer. It won’t put right:
- A joint that has to be widened or re-detailed before it can work
- Concrete or masonry repairs along the arrises
- Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)
If in doubt, phone 01277 525 020 or send photos by email and we will say what we think.
Surfaces we seal
- Blockwork control joints
- Brickwork movement joints
- Cladding panel joints
- Car park decks and ramps
- Precast concrete panel joints
- Podiums and floor movement joints
On site: what to expect
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, we take the joints in the sequence agreed with you. If neighbouring businesses or buildings around South Ham need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.
- 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.
- Old sealant and filler are cut out and the joint faces cleaned back to sound material, flagging any broken edges that need repair before sealing.
- 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.
- Finished joints are checked and backed by our 12-month guarantee.
What we need from you
- Make sure the joints can be reached
- For older buildings, check the asbestos register before work
- Agree which areas must stay open
Request a quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to ring 01277 525 020 or email the details over with what you know.
Read more
Warehouse floors and decks around South Ham
The South East is one of the drier parts of the UK. External joints still wait for dry conditions, while winter salting gets into any joint left open. Less than 3 miles from South Ham there are at least three named estates and business parks. Floors, loading bays and yards on sites like these are where floor and movement joints work hardest.
Another example is Basingstoke Business Centre, under half a mile to the south-east of South Ham, where floors and yards would be done in stages around the occupiers. Schools like St Anne's Catholic Primary School often have long brick elevations with movement joints that age quietly.
South Ham is about 1 mile south-west of Basingstoke, in Hampshire. If you’re looking for expansion joint sealing in South Ham, we can help. We work across 723 places in Hampshire. Sites around Reading have their own page, roughly 14 miles from South Ham.
We cover the RG22, RG21 and RG23 postcode districts. Among the streets we cover are Pheby Road, Wella Road and Lennox Road, and sites on any of them can send details for a fixed quote. Sites close to South Ham are covered too, including Brighton Hill (1 mile south), Basingstoke (1 mile north-east), Winklebury (1 mile north-west), Buckskin (1 mile west) and Worting (1 mile west). Bigger towns within reach include Farnborough (15 miles east), Fleet (12 miles east), Aldershot (15 miles east), Alton (10 miles south-east), Yateley (13 miles north-east) and Tadley (7 miles north).
Local landmarks in South Ham
We work on buildings around Aldworth School, Coppice Spring School and Eastrop Park. The nearest railway station is Basingstoke station, about 1.2 miles north-east. A little further out are Basingstoke and North Hampshire Hospital (1.5 miles north) and Basing House (2.7 miles east). For a walk, there’s Farleigh Hill and Daneshill Park Woods.