Hoy expansion joint sealing
Commercial sealant work in Hoy for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, with a fixed quote first.
- Spalled or broken joint edges in floors and decks
- Leaks through car park deck joints onto the level below
- Sealant pulling off the joint face
Need expansion joint sealing in Hoy?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Aftercare for building managers
Keep the joints in good shape with a few simple steps:
- Note which joints were done, when, and with what
- Sweep decks, ramps and floors so grit doesn’t collect in the joints
- Keep scrapers and ploughs from dragging across joint sealant
- Inspect movement joints alongside other routine building checks
Fresh joint sealant needs its full cure time before it takes traffic or water. How long that takes depends on the product, the temperature and the depth of the joint. Keeping the area coned off until then avoids tyre marks and damage.
External wall joints that fail let rain into the masonry and cavity. The first sign is often a damp patch indoors, well after the seal first opened. Catching it early keeps the water outside.
Expansion joint sealing in Hoy, done properly
Every structure moves a little, all the time: they expand in the heat, shrink as they dry, and shift under load. Movement joints are where that movement is absorbed. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors. We work on blockwork control joints, brickwork movement joints and cladding panel joints, and the usual reasons a site gets in touch are chipped joint edges on forklift routes and damp inside where a wall movement joint has failed. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Hoy, preparation and product choice get the time they need.
Weather windows decide external joint work around a place like Hoy: dry faces and the right temperature are essential, so dates have some give. Inside slabs aren’t affected and can be scheduled around the occupier.
Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Hoy (KW16)
- Wider area
- Orkney Islands
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Where floor joints take the most wear near Hoy
Hoy is within about 1 mile of the coast. Open joints in coastal car parks and yards let in salt-laden water as well as grit, and edges left open tend to break up faster. Being on an island, Hoy means planning around ferry times as well as the weather. Joint widths, lengths and the traffic over them help us bring the right fillers and sealants.
In and around Hoy, the right filler or sealant for each joint depends on the traffic and the movement it takes.
Hoy is about 14 miles west of Kirkwall, in the Orkney Islands. Anywhere in KW16, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. 51 places across the Orkney Islands fall within our area, Hoy among them.
We cover the KW16 postcode districts for movement joints. Being close to the B9049, Hoy is easy to get to with materials and equipment. Just outside Hoy, we also work in Stromness (4 miles north), Cairston (5 miles north), Clestrain (5 miles north-east), Midland (5 miles east) and Clouston (6 miles north-east). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.
Landmarks near Hoy
Other landmarks nearby include Stromness Museum (3.3 miles north). Not far away are Round Hill and South Dam.
Your questions answered
Must our site in Hoy stop work while the joints are done?
Normally 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.
Will you travel to Hoy on the island?
Yes, Hoy is within the area we cover. Every Scottish council area is within our area. Ferry times and the weather set the plan, so we ask for photographs and a full list first.
What happens if it rains on the day?
Sealing onto a damp surface leads to adhesion failure so we’d rather rearrange than seal in the rain. We agree a revised date with you.
Can you fit around our working hours?
Give us your site hours and any access windows in your enquiry, and we’ll schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.
Can weather delay the job?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
Do you guarantee expansion joint work?
Our workmanship on movement joints carries a 12-month guarantee. Damage from later works or traffic loads outside the joint’s design isn’t a workmanship fault.
Do you use silicone or polyurethane in movement joints?
Whatever suits the joint and the specification. The quote states the sealant and its movement class, so you know what’s going in.
Commercial clients in Hoy
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Also in Hoy
What we’re called out for in Hoy
Weathering wears down sealant on exposed elevations and decks. In time the bead chalks, stiffens and cracks, so it can’t follow the movement any more.
These are often picked up first by site or facilities staff:
- Weathered movement joint sealant that no longer flexes
- Water getting into the wall through a failed joint
- Sealant pulling off the joint face
- New sealant over old, now failing
For estates staff at a university like Robert Gordon University Orkney Project, 3.7 miles north of Hoy, building and paving joints are part of the planned maintenance list.
Comparing quotes
- Is the sealant right for the movement and the substrate?
- Health and safety accreditation such as CHAS
- The terms of the workmanship guarantee
- Their approach to joint depth and backing
What sealant work can’t fix
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:
- Proprietary pre-formed expansion joint systems
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
- Movement on a scale no sealant is meant to absorb
If in doubt, call 01277 525 020 or email the details over and we will say what we think before you book.
What we seal
- Podiums and floor movement joints
- Brickwork movement joints
- Blockwork control joints
- Precast concrete panel joints
- Car park decks and ramps
- Cladding panel joints
Cost factors for movement joints
There’s no standard rate for sealant work, because every site is different. What we look at:
- Phasing around occupants
- Distance, for remote addresses
- Whether old sealant has to be cut out first
- Induction, permit and paperwork requirements
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.
Details that help us quote
A good diagnosis starts with the right details. Tell us:
- Whether the building will be occupied during the work
- The postcode of the building
- Any dates the work must fit around
- How the joints are reached, and at what height
Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
From enquiry to sign-off
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Jobs near Hoy are often grouped with others in the same area, to make the most of each trip. Let us know if your dates have any give.
- We start with photographs, approximate lengths and any drawings, visiting where needed.
- Joint widths and expected movement are checked against what the sealant can take, and flag anything that needs an engineer.
- Old sealant and debris are cut out of every joint.
- Any broken arrises or friable edges are flagged before work goes further.
- A sealant suited to the movement and traffic is laid to depth and tooled.
- Areas reopen once cured, and the work carries our 12-month guarantee.
Getting the site ready
- Point out parking and an unloading spot
- Let building users know which areas are affected
- Tell us which areas need to stay in use
Request a quote
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.