
Mastic sealing for building owners and managing agents in Hoy, Orkney Islands
We carry out mastic sealing for building owners, managing agents and housing associations in Hoy. Send photographs or drawings for a fixed quote.
- Complaints coming in block by block
- Cracked, hardened mastic round windows on a block
- Open joints in brickwork or panels
Mastic sealing for Hoy sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Different surfaces, different methods
Window and door perimeters on blocks
Blocks have a mix of frame materials, so the grade we pick has to bond to frame and wall alike. We’ll confirm the colours available for the specified product.
Communal areas
Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Tidy, sound joints keep them looking cared for.
Mastic sealing in Hoy, done properly
Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. We work on communal entrances and stairwells, window and door perimeters on blocks and balcony and threshold joints, and what we are called in for most is mastic failing across several blocks on an estate and occupiers reporting cold air round windows. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Hoy is the same: the right product in a properly prepared joint.
Around Hoy, outside mastic waits for dry weather and the right temperature. Programmes allow for the weather.
Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.

- Location
- Hoy (KW16)
- Wider area
- Orkney Islands
- Guarantee
- 12 months on every job
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Other services in Hoy
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Aftercare for building managers
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:
- Keep bins and bikes away from communal door frames
- Log resealing dates block by block
- Encourage occupiers to report problems at frames
- Look at the sunniest and most exposed elevations first
Keep records of when each building was resealed. That makes future programmes easier to plan and shows what was done.
Planned resealing is easier to budget than emergency repairs. We can quote buildings in priority order so spending is spread.
Block-wide mastic in Hoy
Hoy is within about 1 mile of the coast. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first; plan inspections around that. For an island location such as Hoy, work is planned around ferry crossings and the weather. Send photographs and addresses so every building can be covered on as few trips as possible.
Owners of student blocks near Robert Gordon University Orkney Project (to the north of Hoy) can schedule frame and external mastic for the summer vacation. Around Hoy, a planned programme renews failed mastic across a building or estate in one go.
Hoy is about 14 miles west of Kirkwall, in the Orkney Islands. We send applicators to Hoy for mastic joints. Hoy is one of 51 places in the Orkney Islands on our list.
Anyone looking for mastic sealing in KW16 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. You’ll find Hoy on or near the B9049. If your building is just outside Hoy, we cover Stromness (4 miles north), Cairston (5 miles north), Clestrain (5 miles north-east), Midland (5 miles east) and Clouston (6 miles north-east). For island and remote sites, we plan travel and materials carefully.
Near you in Hoy
A little further out are Stromness Museum (3.3 miles north). Green spaces nearby include Round Hill and South Dam.
Our process
The first thing on site is a walk round with your contact, 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. For work around Hoy, we aim for one trip, which is why we ask for photos and a full list first. External joints need a dry spell as well.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- We finish each building before moving to the next.
Preparing the site
- Share your working hours and any access restrictions
- Agree which areas must stay open
- Send asbestos survey details if the building is pre-2000
Quotes
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, call 01277 525 020 or send photos by email.
Related advice
FAQs: Hoy
Does the sea air around Hoy change the choice of sealant?
It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
Do you take on block-wide or estate-wide mastic work in Hoy?
Yes, we quote for single buildings and for programmes across several blocks. Send the addresses and photographs and we’ll give a fixed quote.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It applies to our workmanship rather than damage or problems with the frames.
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.
How do you handle work on occupied blocks?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so it can be arranged.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned and we’ll confirm the approach in the quote.
When can the area be used after sealing?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
Why deal with it now?
Draughts round window perimeters cost occupiers comfort and the windows typically get the blame. In many cases, new perimeter sealant deals with it when the frames themselves are sound. For buildings near Hoy, dealing with all the failing joints at once saves return trips. Photos of each area help us quote the whole job.
The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
Why choose Mastic Doctor in Hoy
- Clear, fixed quotes
- Failed material removed, not covered up
- One phone line for London, the South East and Scotland
- Our applicators hold CSCS cards
See how commercial sealant jobs are priced or our accreditations and insurance.
When something else is needed
A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be one of these:
- Asbestos-containing sealant, which we don’t remove
- Leaks from above rather than through a joint
- Glazing that needs replacing
If in doubt, speak to us on 01277 525 020 or email drawings and photos and we’ll say what we think.
Joints and surfaces we work on
- Balcony and threshold joints
- External wall and movement joints
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells