Dorchester expansion joint sealing
Expansion joint sealing in Dorchester, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Water getting into the wall through a failed joint
- Layers of sealant in a movement joint
- Hardened, cracked sealant on exposed facades
Need expansion joint sealing in Dorchester?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Your questions answered
Would you work within a site like Littlemore Hospital?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Do we have to stop operations in Dorchester while the joints are sealed?
Typically not: we work in sections and hand each one back once it has cured. We agree the sequence and timings with you before we start.
How much does the work cost?
That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.
Is Dorchester in your area?
Yes. We cover Dorchester, and the simplest way to start is to call 01277 525 020 or send details through our quote form.
Can you handle several sites?
Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.
Can the sealant be colour-matched?
That depends on the product. Some ranges offer many colours, others very few, so we will confirm the colours available for the specified product with the quote.
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. We confirm the timescale with the quote.
How we handle expansion joint sealing in Dorchester
Few joints take as much punishment as those in a car park. Wheel loads, grit and de-icing salts attack the seal and the concrete either side. We reseal deck and ramp joints with a trafficable sealant chosen for the movement. We work on podiums and floor movement joints, brickwork movement joints and cladding panel joints, and the failures we’re asked to look at most are new sealant over old, now failing and movement joints with split or torn sealant. Searching for sealant specialists in Dorchester? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
Smaller community and commercial buildings around Dorchester have their own movement joints in walls and floors. They’re easily forgotten until water gets in or an edge breaks.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Where
- Dorchester (OX10)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Nearby places to Dorchester
What else we do in Dorchester
When to call us in Dorchester
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.
These are often picked up first by site or facilities staff:
- Expansion joints filled with dirt and stones
- Damp inside where a wall movement joint has failed
- Joints where the bead has lost adhesion
- Leaks through car park deck joints onto the level below
In a school such as Dorchester St Birinus Church of England School, movement joints in brick, block and hall floors tend to be forgotten until they leak.
What to look for in a quote
- Their approach to joint depth and backing
- How they handle RAMS and site documents
- Whether primer will be used where the manufacturer specifies it
- Is the sealant right for the movement and the substrate?
When something else is needed
Honesty saves time and money. Fresh joints won’t solve:
- Leaks coming from the membrane rather than the joint seal
- Changing the joint layout or spacing of a structure
- Proprietary pre-formed expansion joint systems
Not sure which it is? You can phone 01277 525 020 or email drawings and photos and we’ll tell you honestly before you book.
What we seal
- Car park decks and ramps
- Blockwork control joints
- Cladding panel joints
- Podiums and floor movement joints
- Precast concrete panel joints
- Brickwork movement joints
After the work
Keep the joints in good shape with a few simple steps:
- Record the sealant used and the date in the O&M file
- Plan racking layouts so feet don’t land on a joint
- Put movement joints on the planned maintenance inspection round
- Inspect exposed joints once the cold weather has passed
Grit is the slow enemy of a joint seal. 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.
Unsupported floor joint edges spall under forklift and pallet-truck wheels. Broken arrises jolt trucks, loads and drivers and the broken length grows with every pass. Sealing early protects the edges.
Should maintenance staff do it?
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
How a job runs
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes a few hours to several weeks, depending on how many metres of joint there are and how much old sealant or filler needs removing, and we clear our waste as we work. For a building around Dorchester, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
- A fixed quote follows, naming the sealant and its movement class.
- The failed seal is removed and both faces are cleaned until sound and dry, and we tell you if any edges need repairing first.
- 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.
What we need from you
- Have the specification and drawings to hand
- Agree which areas must stay open
- Tell staff and tenants when we will be in
Quotes
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or phone 01277 525 020 or email drawings and photos to discuss it first.
Read more
Where floor joints take the most wear near Dorchester
Dorchester lies roughly 47 miles out from central London. The roads out of London are lined with trade parks and distribution sheds, and their floor joints take forklift and pallet-truck traffic all day. Dorchester sits in one of the drier corners of the country, the South East. External slab and deck joints still need a dry, clean joint to seal, and gritting in cold spells finds its way into open joints.
A healthcare site such as Littlemore Hospital, 5.6 miles to the north-west of Dorchester, depends on car parks, ramps and service yards whose joints take traffic all day.
Dorchester is about 4 miles north-east of Didcot, in Oxfordshire. If you are looking for expansion joint sealing in Dorchester, we can help. Our Oxfordshire coverage takes in 423 places. Our Oxford page has more on work in that area, about 8 miles away.
Work on movement joints is covered throughout OX10. If your site is on High Street, Queen Street and Queens Close or close by, we can quote for movement joints. If your building is just outside Dorchester, we cover Burcot (1 mile north-west), Little Wittenham (1 mile south-west), Berinsfield (1 mile north), Warborough (1 mile east) and Shillingford (1 mile south-east). Bigger towns within reach include Oxford (8 miles north), Didcot (4 miles south-west), Abingdon-on-Thames (5 miles north-west), Thame (11 miles north-east), Wantage (12 miles west) and Henley-on-Thames (14 miles south-east).
Local landmarks in Dorchester
Around Dorchester, our work takes us to commercial buildings near The White Hart Hotel Bar. For rail, the closest station is Culham station, about 3.1 miles west. Nearby you’ll also find Brightwell Castle (2.3 miles south) and Littlemore Hospital (5.6 miles north-west). The countryside around Dorchester includes Ewelme Watercress Beds and Wittenham Clumps.
Surface by surface
Internal floor movement joints
Warehouse and retail floors have saw-cut induced joints and construction joints. A semi-rigid filler is common in trafficked industrial floors, with a flexible sealant where movement is larger.
Brickwork and blockwork joints
Masonry faces are often porous, dusty or crumbly. Faces are prepared and primed wherever the sealant maker calls for it.